1987 PBIO Newsletter

Ohio UniversityDepartment of Botany College ofArts and SciencesPorter HallOhio UniversityAthens. Ohio 45701-2979

614/593-1126

BOTANY

NEWSLFTER

1987

REPORT FROM THE CHAIRMAN:

The Department of Botany has had another very successful year. We havereceived strong assistance for our research efforts from tio new state programsthat support excellence in research and graduate activities, kadeiuic challengeand Research challenge. This year we held our fourth annual awards ceremony tohonor our outstanding undergraduate students. These awards are assisted in partby your contributions to the Ckiio University Fund when you designate the BotanyDepartment as the recipient of your support. We sincerely appreciate our alumnifor their continuing efforts in behalf of our programs. Please continue toinform us of your current activities and visit the department when you are inAthens. It is always gratifying to learn of your various activities.

Best wishes,

_&

Irwin A. UngarProfessor and chairman

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NEW FACULTY: Er. Allan Showalterijoined the staff of theDepartment of Botany this yearafter completing a three yearpostdoctoral appointment atWashington University, St. Louis.Allan received his B.S. degree in1978 from Franklin and MarshallCollege and his Ph.D. in 1983 fromRutgers University. Ha is alsoaffiliated with the Molecular andCell Biology Program and a portionof his funding comes from a$269,000 first year AcademicChallenge Grant through Ctiio’sSelective Excellence Initiative. Amajor focus of his research is theisolation and characterization ofplant hydroxyproline glycoproteingenes and their expression understress conditions.

GRANTS: Er. Gayle Muenchow hasreceived a two year grant fran theNational Science Foundation tostudy clioecy and nxnoecy in the twoclosely related species ofSagittaria (Alismataceae). Thegrant includes funds for a postdoctoral fellow and VeroniqueDelesalle will be joining h labshortly in this position. Veroniqueis currently cctnpleting herdoctorate at the University ofArizona working on monoecy inCucurbitaceae. James C. Cavenderhas received a grant from theNational Science Foundation,Division of International Programs,to study the taxonomy anddistribution of cellular slimemolds in the Central AfricanRepublic.

Other faculty receiving grantsinclude Gene Mapes, from the ChioUniversity Research Committee, tostudy the relationship of wildfireand early Conifers. ResearchChallenge Awards from ChioUniversity re given to IrwinUngar for purchase of new equipmentand technical help, Philip Cantino,for the services of a biological

illustrator, Rebecca Samson, todocument variation in stamenmorphology in mints, and RobertLloyd, for supplies, equipment andan undergraduate assistant, Jackie

M. Adams, who has been working onthe population biology of the rarefern (in chio), Lorinseriaareolata. Other faculty receivingResearch Challenge support includeGayle Muenchow, Gar Rothwell,Norman Cohn and John Mitchell.

AWARDS: The Department held itsannual awards ceremony on May 1 atthe Window Room of Baker Center tohonor academic achievement byundergraduate majors. Graduatingseniors receiving awards were EdwinFrebault Cfiela biology), MarcellaGrebus (cell biology), Kevin Blake,Leslie Dybiec (senior Wolf Award inconservation), Anna Anagnostopolous(outstanding senior from theHonors Tutorial College), andJackie Adams (outstanding seniorfrom the College of Arts andSciences). In addition, StockerScholarships for the 1987—88academic year were awarded to SingHan Kim and Anthony Kirchgessner,and the junior Wolf Award inconservation went to AndrewSwanson. F’ebault, Grebus, Blake,Anagnostopolous, and Adams werealso recognized by the BotanicalSociety of America for showingexceptional promise for future workin the botanical sciences. Almostall of the graduating seniors willbe attending graduate school. Theceremony was attended by about 70people, including parents andrelatives of the awardees, currentand emeritus faculty (Ers.Wistendahl and Vermillion) of thedepartment, Associate DeanMolineau, Margaret Cohn, Directorof the Honors Tutorial College,Irene Roach, former Director ofGraduate Student Services, andundergraduate and graduate studentsin the department.

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FACULTY NEWS

JAMES P. BRRSELTON: Dr. &aseltonvisiteJThhe Kraft microstructuregroup at the technology center ofKraft, Inc., Glenview, illinois,for a wec in March to learnapplications of light microscopy,scanning electron microscopy, andtransmission electron microscopy forbasic studies of foodmicrostructure. He is an invitedspeaker for a colloquiun on“Viruses and Fungal Vectors” to beheld in St. Pndrews, Scotland, atthe end of Pugust, where he willreview basic studies onultrastructure of development ofthe Plasmodiophoromycetes. F isteaching Botany 100 (The World ofPlants), a course of his owndesign, which continues to increasein enrollment. This past quarterenrollment was 320 and he is“shooting for Memorial Auditorium.”

PHILIP D. CANTINO The principalfocus of Dr. Cantino’s researchcontinues to be on reconstructionof the phylogeny of the Labiatae(mint family) and revision of theclassification of the family toreflect phylogenetic relationships.Toward this end, he is employingcladistic analysis, a method thatattempts to delimit heirarchies ofmonophyletic groups (the “clades”or branches of the monophyletictree). These groups arecircumscribed on the basis ofshared derived traits——evolutionarymarkers that evolved in theancestor and were inherited by thedescendents. The data on which thecladistic analysis is based arederived from an ongoing survey ofmorphological and anatomicalvariation in the family.Characteristics under study by Dr.Cantino and graduate student MonesAbu—Asab include flower and fruitstructure, leaf anatomy, pollensurface sculpturing, and themicroscopic structure of the tiny

glandular hairs that cover thefoliage of most mints. These glandssecrete the chemical compoundsresponsible for the “minty” odorthe family is known for.Understanding the ylogeny of themint family will ultimately lead toa more jredictable classification,because plants grouped together onthe basis of recent common ancestryshould be more similar geneticallyand thus share more traits incommon than distantly relatedplants. Predictability is animportant feature for aclassification to have because itpermits the user to predict thingsabout a plant simply by knowing itsposition in the classification.Predictivity extends tocharacteristics that were not usedto construct the classification.

For example, even if chemicalfeatures were not used by thetaxonomist, the classificationshould still be rredictive aboutchemistry if the phylogeny it isbased on is accurate. Dr. Cäntino’sphylogenetic classification of themint family should permit a chemistwho discovered a commerciallyuseful compound in one member ofthat family to predict which othermembers are most likely to producethe same compound (i.e. those thatshare the closest common ancestrywith it). This could be ofconsiderable importance if theplant the compound was initiallyfound in was rare or difficult togrow.

Nones Abu—Asab’ s doctoralresearch is an investigation ofthe pollen morphology of a largesubfamily of Labiatae, usingscanning and transmission electronmicroscopy. Jon Hamer, anotherdoctoral student, is working towarda taxonomic monograpi of thePycnanthemum incanum speciescomplex (Mountain Mints), basedupon morphological variation,chromosome number, and enzymesystems (as determined through

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starch gel electrophoresis). GregRhinehalt is approaching completionof his dual masters degrees inbotany and environmental studies.His research, which is funded by agrant from the Divisict of NaturalAreas and Preserves of the OhioDepartment of Natural Resources,concerns the taxonomy and ecologyof Trollius laxus (SpreadingGlobeflower), an dangered speciesin Ohio. Late in 1986, SteveHarriott completed his mastersthesis in environmental studieswith a study of the variation andland use history of a NatureConservancy rreserve in PikeCounty, Ohio, with managementrecctnmendations.

As of Fall Quarter, 1987, Lr.Cantino will be promoted toAssociate Professor with tenure.He has also been elected to theBoard of Trustees of the OhioChapter of the Nature Conservancy(May, 1986) and wiil serve a threeyear tenn. In summer, 1986, hepresented a paper (A systaticsurvey of leaf epidermal featuresin the Labiatae) at the annualmeeting of the Botanical Societyof America in t4iuherst,Massachusetts. This past November,he presented a seminar(Phylogenetic systematics of theLabiatae) at Miami University inOxford, Ohio.

JAMES C. CAVENDER: Dr. CavenderreportiThhat “I spent two monthssearching for cellular slime moldsin Japan working with threeJapanese colleagues at ShizuokaUniversity, The National Museum,Tsukuba, and Kushiro College,Hokkaido. Japan still has 70% ofher area in forest and is a refugefor many species of cellular slimemolds. This research was funded byOURC. In July, I wiil travel to theCentral African Republic to studythe effects of slash and burnagriculture on soil microbes,particularly the slime molds. Thisresearch is being funded by NSF.

Barbara ]3allard successfullydefended her dissertationMycorrhizae of Some InlandHalophytes in March. MichaelQuinones is collecting forest soilsin California this June for makingisolates of West Coast dictyostelidslime molds as part of nis mastersthesis research. Steven Rioch, anHonors Tutorial Student in botany,has begun a 4000 sq. ft. (40 deep

beds) minifarm at the West StateStreet Experimental Garden site andhas submitted a grant proposal tosympathetic parties for fUnding.

The purpose is to show the economicviability of a small food—producingunit and to provide instruction forstudents in the new Tier IIIAlternative Agriculture course.Gary Kauffman and Chuck Hammer areboth working in Ohio helping saveendangered habitats and plants.Dale Anderson is currently livingin Spain with his family.”

NORMAN S. COHN: Dr. Cohn iscurrently producing pea cDNA clonesof sequences involved in theresponse of gibberellic acid bydwarf mutants. Several monoclonalantibodies have bei producel thatreveal specific çroteinlocalization in developing peashoot tissue. He participated in asymposium on the physiology of cellexpansion during plant growth atPennsylvania State University inMay, 1987 and last summer presenteda paper to the annual meetings ofthe Botanical Society of America atAmherst, Massachusetts. This June,

he will be speaking on his researchto the Botany Department at OhioState University.

ROBERT M. LLOYD: Dr. Lloydcontinu his research onpopulation biology and genetics inferns. The major emphasis of theresearch is to document geneticvariation in fern populations andthe influence of breeding systems,vegetative reproduction, andcolonizing effects. He is currently

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trying to complete a book on theevolutionary biology of ferns andwill spend this summer completing achapter cri sexual reproduction andgenetic variation in naturalpopulations. Two graduate students,Steven J. Wagstaff and RobertHamilton, have recently joined hislab, working for their doctorates.Steve Wagstaff received his mastersdegree fran Western Washington andis working on intra— andinterpopulational genetic variationin the climbing fern, Lygodiumpalmatum. This species is one oftwo temperate species in the genusand is localized and somewhat rarein Ohio. Practically nothing isknown about the biology of thespecies and his work will alsodocument gainetophyte morphology,breeding systems, and extent ofvegetative reproduction. &bHamilton is studying the demography oftwo species of Athyrium insoutheastern Ohio. He isdocumenting life—history stages andvarious physiological andecological factors in the field andwill genotype individuals usingrestriction DNA mapping as well asisozyme variation (with starch gelelectrophoresis). This coming fall,Ma Yilun, from Beijing, thina, willbe joining the lab to work on hisdoctorate and Winter iarter,Jackie Adams will initiate doctoralwork on the population biology andgenetics of Lorinseria areolata andother members of Woodwardia s.l. inthe eastern United States.

This coming summer, Dr. Lloydwill complete his six year term asa member of the Council of theInternational Association ofPteridologists.

GENE K. RAPES: Dr. Mapes iscontinuing her investigations ofthe biology, ecology andsystematics of the earliestconifers, with particular interestin certain Middle and UpperPennsylvanian shale and limestonedeposits in midcontinental North

America, especially Kansas,Oklahoma, and Texas, wherepermineralizect fossils reveal both

anatomy and morphology of ancientconifers, plus a broad spectrum ofassociated plants and animals. Shehas recently discovered charcoal inthese deposits which has suggestedfire—adaptation as an earlyselective pressure.

‘Maria T. Haworth is completingan undergraduate project incollaboration with Dr. Ipes andEr. Rothwell, investigating afossil conifer cone that has well—preserved cotyledonary embryos andgametophyte tissue in its seeds.These features represent a criticalstep in the evolution of seeddormancy and the introduction ofphysiological delay sequencesbetween pollination andfertilization and seed germinationin gymnosperms and angiosperms.

GAYLE E. MUENCHOW: Er. enchow’sresearch is in the general area ofevolutionary transitions from onebreeding system to another inflowering plants. In the past 12months, she and undergraduateMarcella C’ebus researched thesubject of the evolutionarytransition from distyly to ctioecy.

If pollen simply ceases to movefrom the low anthers of pins to thelow stigmas of thrums, a distylouspopulation becomes ftmctionallydioecious. The suggestions havebeen made in the literature that if

distylous plants lost their long—tongue pollinator, the plants wouldbecome functionally dioecious andthat morphological dioecy wouldevolve thereafter by loss of unusedparts, with the pins becoming thepistillate plants and the thrumsbecoming the staminate plants. Thiswas investigated in two ways.Grebus completed a computersimulation of the spread of malesterility and female sterilitymutations in a distylous populationthat was suffering various degreesof loss of the long tongue

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pollinator. This showed that thespread of these alleles is notlikely to occur except under themost restrictive conditions,casting some doubt on theapplicability of the hypothesis.Muenchow surveyed all of the 1aowricases of this evolutionarytransition and found that in onlyone case was there any particularreason to think that the thrums didin fact become staminate and thepins pistillate. They concludedthat this deceptively simplehypothesis is not in factparticularly supportable.

s-ian Gara finished his masterswork this Spring (.iarter. F hasworked on cleistogamy in thepreviously unstudied species,Trioclanis perfoliata(Campanulaceae). His research hadtwo goals——to learn enough aboutthe phenology, germinability andgrowth requirements of the speciesto make it practical for in—depthresearch and to begin to look forecological and physiologicalsituations that iuld explain thepossible adaptive significance ofthis breeding system. He learnedthat the open flowers are morelikely to fail to set seed thelater they bloom, that the periodof reproduction comes to an abrupt,environmentally induced halt (dueto drought), and that there islittle difference between the seedsof open and closed flowers inregard to germinability andrequirements for germination. ianwill earn his teaching certificatein Chic this year and expects toteach science at the post—elementary level.

Thulisiwe Ndelu joined her labfrom South Africa this year. ebegan her research this spring cr1 afield based survey of native herbsand shrubs. Her data will allow herto look for patterns in florallongevity, color, and size, lengthof time from flowering to fruiting,percent fruit set under naturalconditions and whether this is

limited by inadequate pollination.Across species patterns can give asense of the constraints theenvironment places on flowers andwhat they must do to becomesuccessful.

Leslie Dybiec is doing anundergraduate project, followingthe fate of several hundred Violapapilionacea buds! flowers/fruits.They are putting together a life—history of these reproductivestructures, expecting this toelucidate such questions as whythey bloom when they do, why theyhave the numbers of flowers thatthey do, and why they switchbetween open arid closed flowers.Leslie will be graduating this June

and wiil continue her work inhorticulture at VirginiaPolytechnique Institute.

Dr. ienchow presented a paperat the Botanical Society of Americameetings this past summer inAmherst, Massachusetts, andpresented seminars at Bowling GreenState University and DenisonUniversity in Chio.

Gar W. Rothwell: Er. Rothwellcurrently is coordinating planningfor new Botany facilities at aiioUniversity. Although theanticipated facilities will not beavailable for several years, thisactivity provides a focus forconsidering long—term departmentaldevelopment. In the area ofcurriculum, Er. Rothwell recentlyhas developed a graduate course inBotanical Photography, arid is inthe process of reformulating theteaching of vascular plantmorphology to encompassdevelopmental phenomena within thesystematic and evolutionaryframework.

Dr. Rothwell’s researchinterests continue to center onthe origin and early evolution ofseed plants, but recently have alsoincluded the early evolution offerns. The primitive seed plantwork is in the second year of

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N.S.F. funding, and is progressingin collaboration with Dr. David C.Wight. A relatively new Ph.D.student from the Peoples Republicof China, i Li, has begun hisgraduate research on some of themost ancient remains. JanellePryor also is studying seed plants,and has initiated her Pn.D.research on the paleoecology offossilizea coal swamps. Ers.Rothwell and Wight will bepresenting the results of the workat an International BotanicalCongress in West Berlin this July.They also plan to collectadditional material on the eastcoast of southern Scotland inAugust. An additional postdoctoralfellow, Dr. Richard Bateman of theUniversity of London, is planningto join the laboratory in ODtoberto study the primitive seed plants.

The work on ancient ferns isbeing carried out in conjunctionwith Dr. W.H. Wagner of theUniversity of Michigan and Er. ThthStockey of the University ofAlberta, and additional results arebeing obtained by continuing Ph.D.student, ry Louise “Cookie11Trivett. The newest member of thelaboratory, Dr. Bing—cheng Feng,wnd recently completed his Ph.D. atthe University of Michigan, isactively engaged in the fern work.Trivett will be reporting her workat the Berlin Botanical Congress inJuly, and all of the members of thelaboratory will be presenting theresults of their studies at theBotanical Society of Americameetings at Columbus, Ohio thisAugust.

RICHARD B. RYPHk Dr. Rypmaattended the organizational meetingof the Association of Educationaland Research Greenhouse curators atNortheastern Illinois University,Chicago, in November, 1986. He alsoattended the Ohio NurserymansAssociation meeting at Ohio StateUniversity in January. fi has beenappointed chairman of the

organization committee of theAssociation of Educational andResearch Greenhouse Chrators,Chairman of the Interim ExecutiveCommittee, and chaired the Novembermeeting. He also chaired theconstitution and corporation

committee, and wrote theconstitution and corporate papers atthe University of Illinois in July1986. He has been elected interimpresident and chairman of theexecutive committee in charge ofthe first general meetings, to beheld at Southern illinoisUniversity, Carbondale, this June,1987. In addition, he received a

plaque from the International PlantPropagation Society honoring hiscontributions to the industry inJune, 1986.

ALLAN SHOWALTER: Research in Er.Showalter’s lab involves twoclasses of plant hydroxyproline—rich glycoproteins (HRGP5), thecell wall HRGP5 and the solanaceouslectins. The cell wall HRGPsconstitute an important structuralcomponent of plant cell walls andalso accumulate in response towounding and pathogen infection asan apparent defense mechanism. Theoverall goal of his current cellwall HRGP research is two—fold: toelucidate the structure of bothconstitutive and wound—regulatedcell wall HRGP genes and toinvestigate the wound—regulatedexpression of these genes. As aninitial approach to ftlfillingthese goals, he has constructed twoeDNA (complementary DNA) librariesfrom unwounded and wounded tomatostem tissue and isolated a numberof different cell wall HRGP cDNAclones. Using these eDNA clones as

molecular probes, genoinic DNA isalso being isolated and subjectedto DNA sequence analysis, and theresulting information used toelucidate the complete genomicorganization of these cell wallHRGP genes including the regulatorysequences from the different cell

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wall HRGP genes. BDth the eDNA andgenomic clones encoding the cellwall HRGPs are also being used asmolecular probes in RNA blottingexperiments to monitor HRGP mRNAlevels in response to wounding andpathogen infection. The solanaceouslectins have been found toaccumulate in plants in response topathogen infection and are thoughtto play a role in plant defense byagglutinating potential pathogens.The potato lectin is the mostthoroughly studied of thesolanecous lectins and may be anevolutionary relative of the cellwall HRGPs. He now plans to isolatecDNA clones encoding the potatolectin in order to elucidate itssequence and to investigate theinfection—regulated expression ofthe potato lectin gene.

Jin Zhou is a first yeargraduate student working in his labon a project yet to be determined.Dominique Rurneau has also joinedhim in his research as a postdoctoral fellow. She is from Franceand is irking on isolation,characterization and expression ofconstitutive and wound—regulatedHRGP in tomato.

Dr. Showalter has been activein the Molecular and Cell BiologyProgram this year, serving aschairman of the curriculumcommittee and on the searchcommittee for a new molecularbiologist in chemistry. He wasinvited to participate in asymposium on plant genes ofeconomic interest at the Universityof Wisconsin in Cotober 1986,presenting a paper “Hydroxyproline-.rich glycoprotein genes and theirexpression under stressconditions”. This summer he hasbeen invited to speak to the PlantMolecular Biology Gordon Conferenceon “Hydroxyproline—richglycoproteins”. He has alsopresented seminars to theDepartment of Chemistry, New MexicoState University and to theDepartment of &tany, Chio State

University on his research.writes that “assuming a

pending grant is ftnc1ed, I would beinterested in receiving letters ofapplication from individuals withmolecular biology experience for apostdoctoral position in mylaboratory studying stress—regulated expression of planthydroxyprol ine-.rich glycoproteingenes. I am also currentlyadvertising for a molecular biologylaboratory technician (withprevious molecular biologyexperience) .“

IRWIN A. UNGAR: Dr. Ungar iscurrently studying the factorsinfluencing the establishment ofSperguJ.aria marina populations. Twoapproaches are being used toascertain data. Firstly, theeffects of temperature and salinityon seed germination of monthly seedcollections are being studied inthe laboratory. Seed dormancyapparently varies with the seasonof seed maturation. Factorsalleviating dormancy are beingdetermined. Secondly, seeddemography is being monitored fromfield collections to determinewhether or not a consistent seedbank is formed and precisely whatproportion of seeds can remaindormant during the primarygermination period.

Four graduate students arecurrently carrying out theirdissertation and thesis research inhis lab. Kern Badger, Don Drake andMarlis Rahman are studying theeffects of salinity gradients andcompetition on the growth anddistribution of halophytes. JimNellessen is determining thefactors that influence the growthand stress tolerance of populationsof Andropogon virginicus in oldfield and spoil bank habitats.Rachel LaPoint, a MSES graduatestudent, is currently working onher thesis.

Several grants have beenobtained for the lab. Jim Nellessen

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and Kem Badger have received JohnHc’uk research awards. Kern Badgerand Ingrid Chorba also receivedfunding from Sigma Xi to supporttheir activities.

tv’. Ungar presented a paper atthe IV International Congress ofEcology at Syracuse, New York, on“Effects of seed maturation time onthe temperature requirements forgermination and salinity toleranceof Spergularia marina seeds.”

RECENT PLIBLICATIOI BY FACULTY

J. P. BRASELTON:

1986. Karyotypic analysis ofWoronina pythii. Mycologia 78: 511—513.

1987. Synaptonemal complexes,serial sections, and karyotyping.Pp. 158—160. In: Fuller, M. S. andA. Jaworski, Eds. Zoosporic Fungiin Teaching and Research.Southeastern Publishing Corp.,Athens, Georgia.

P. D. CANTINO:

1986. Subfamilial classificationof Labiatae. Syst. Bot. 11: 163—185.

1987. Phylogenetic implicationsof leaf anatomy in subtribeMelittidinae (Labiatae) and relatedtaxa. J. Arnold Arb. 68: 1—34.

J. C. CAVENDER:

1986. Distribution ofdistyostelid cellular slime moldsin forest soils of India. Mycologia78: 56—65.

1986. Distribution patterns ofChio soil dictyostelids in relationto physiography. Mycologia 75: 5.

1987. The dictyostelids. In:Margulis, L. Ed. The Handbook ofthe Protoctists.

N. S. COHN and J. P. MITCHELL:

1986. Immunocytochemicallocalization of proteins indifferentiating tissues of Pisumsativum. Histochemistry 84: 432—438.

R. M. LLOYD:

1986. Effects of salinity ofgametophyte growth of Acrostichuinaureum and A. danaeifoliurn. FernGaz. 13: 97—102.

1987. Gametophytic density andsex expression in Ceratopteris.Can. J. Bot. 65: 362—365.

1987. Expression of a clumped—chioroplast mutant in the fernAcrostichum danaeifolium. BDt. Gaz.148: 120—122.

G. IC. MAPES:

1986. Late Paleozoic non—peataccumulating floras. Pp. 115—127,In: 1oadhead, T. Ed. Land Plants,Notes for a Short Course. Univ. ofTennessee Studies in Geology No.15.

G. E. MUENCHOW:

1987. Is dioecy associated withfleshy fruits? Amer. J. Bot. 74:287—293.

G. W. ROTHWELL:

1986. A monograpki of DolerothecaHalle, and related complexpermineralized medullosan pollenorgans. Thans. Roy. Soc. Edinburgh(Earth Sciences) 77: 47—79.

1986. CLassifying the earliestgymnosperms. In: R. A. Spicer andA. Thomas, ECIS., Systematic and

taxonomic approaches inpaleobotany, Clarendon Press,Oxford.

1986. Vegetative and fertilestructures of Cyathotheca

B.

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centilaria from the UpperPennsylvanian of the AppalachianBasin. Amer. J. Bzt. 73: 1474—1485.

1987. Complex Paleozoic Filicalesin the evolutionary radiation offerns. Amer. J. Bot. 74: 458—461.

R. B. RYPMA:

1986. The wetwall. GreenhouseNewsletter 1(1): 1—2.

1987. The polybag, a laboratorycontainer. Greenhouse Newsletter1(4): 1—5.

A. N. SH(MALTER:

1986. Accumulation ofhydroxyproline—rich glycoproteinmRNAs in biologically stressed cellcultures and hypocotyls. Pp. 235—244. In: Bailey, J. A. Ed. Biologyand rxlecular biology of plant—pathogen interactions. Springer—Verlag, NY.

1986. Molecular response ofplants to infection. Pp. 237—251.In: Augustine, P. C. et al Eds.Biotechnology for solvingagricultural problems, Nijhoff,Dordrecht, Holland.

1987. Molecular details of plantcell wall hydroxyproline—richglycoproteins expression duringwounding and infection. Pp. 375—392.In: Arntzen, C. J. and C. Ryan. Eds.iblecular strategies for cropprotection. Liss, Inc. NY.

I. K. 1ITh:

1986. Sulfur metabolism inplants. Pp. 57—120. In: Thbatabal,M. A. Ed. Sulfur in agriculture.Amer. Soc. of Agronomy ?bnographs,Madison, Wisconsin.

I. A. UNGAR:

1986. Life history and populationdynamics of Atriplex triangularis.Vegetatio 66: 17—25.

1986. Oxalate and inorganic ionconcentrations in Atriplextriangularis Willd. organs in

response to salinity, light leveland aeration. Bot. Gaz. 147: 65—70.

1986. Seed demography andseedling survival in a populationof Atriplex triangularis Wilid.Amer. Midl. Nat. 116: 152—162.

1986. Inhibition of germinationin Atriplex triangularis seeds byapplication of piienols andreversals of inhibition by growthregulators. BDt. Gaz. 147: 148—151.

NEWS ALUMNI

Timothy Bell, MS, 1979. Timreceived his Ph.D. from RutgersUniversity and is now AssistantProfessor, Department of Biology,at Cücago State University.

Ingrid Chorba, MS, 1986. In thefail of 1986, Ingrid organized andeffectively established the NativePlant Society of Southeastern Ohio.The primary objective of this groupis to preserve native plant species

that may become extinct because ofdevelopment. She also lives andteaches in the Athens area.

Andrew DiLiddo, BS, 1973. Andy isliving near Boston and serving asPresicent of the New Edgiand AlumniOhapter. He works in pharmaceuticalsales, representing Schering—Ploughand exclusively selling Biogen’salpha—interferon. He writes that“Communicating with physicians andpharmacists regarding this newrecombinant—DNA product ischallenging and enjoyable.” Hiscurrent address is 70 Elm Street,North Billerica, MA 01862.

Cecile Henault, S (enviromentalbiology), 1981. Cecile is working

Paul Goldstein, MS, 1975. Paul isin the Department of BiologicalSciences, University of Texas at ELPaso. He has recently received afour year NIH grant to studydevelopment of gametic tissues innematocles.

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as a pharmaceutical salesrepresentative, specializing inmusculoskeleton disease products.&ie is currently living at 618 E.Franklin St., Appleton, WI 5)4911.

Gary Kauffman, MS, 1986. Gary hasbeen hired oy the Oiio (2iapter ofthe Nature Conservancy as aBotanist for the spring and summerof 1987.

Walter Kelman, MS, 1983. Wally isstill living in Davis, California,and is completing his doctoratethis summer at the University ofCalifornia, Davis.

Ajmal Khan, Ph.D. 1984. .&jmal iscurrently Assistant Professor ofBotany at the University ofKarachi, Pakistan. He is planningto present a paper at this summer’smeetings of A.I.B.S. in Columbus,chio.

Cletus P. Kurtzman, BS, 1960.Cletus has been named “Scientist ofthe Year” for the Midwest Region, bythe U.S. Department of Agriculture.He has been determining which yeaststrains could be used forbioengineering new strains withbetter capabilities.

David G. Loveland, MS, 1981. Daveis now living at 405 Fourth Ave.N.E., Washington, D.C. He wasmarried in April, 1986, to KathleenKyne arEl they are expecting a babythis spring. He is currently anenvironmental policy advisor,Director of Natural Resources, forthe League of Women Voters, USA.

Jim Hickle, Ph.D. 1983. Jim writesthat he is “starting my third yearas a lecturer at UT. I spent thesummer of 1986 at the Orto Botanicoof the Universita di Napoli(Naples) Italy, designingpaleobotany exhibits for a small,new museum in a small 16th Century

castle.” We understand he has just.recently been appointed to apermanent position at NorthCarolina State University, Raleigh.

Paul Olen, 133, 1983. Paul has beenserving in the Peace Corp in theCentral African Republic andteaching at the University ofOklahoma pre—fisheries trainingprogram.

Russell Robbins, Ph.D., 1986.Russ has accepted a position in aposition in the Department ofBiological Sciences at iio NorthernUniversity. He and his family willbe moving to Ada, Ckiio in September.

Hark Shotwell, BS, 1977. Mark isat Purdue University working withBrian Larkins. He recently visitedOU to present a seminar cx thecloning of genes for major seedstorage proteins in oats to Botanyand the f’blecular and Cell BiologyProgram.

Ruth A. Stockey, IS, 1974. Ruth iscurrently an Associate Professor ofBotany at the University of Albertain frigid Edmonton, Canada, andrecently has been elected to athree year term asSecretary/Theasurer of thePaleobotanical Section of theBotanical Society of America.

Jora Young, KS, 1984 (environmental)studies). Jora is Director ofScience and Stewardship for theFlorida chapter of the NatureConservancy.

Floyd R. West, as, 1943. Floyd isnow a retired Professor Emeritusfrom Broome Community College,Binghamton, NY. He is living at 592Chenango Street, Binghamton, NY1390 1. He writes that “After

teaching 21 years in public schoolsin (Yiio (I obtained a MA in Scienceeducation from OSU) I migrated to

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Binghamton and taught generalbiology at &oome Community College±br 16 years. Since ‘retiranent’ Ihave been Adjunct curator of Scienceat the Rober son Center for Arts andSciences here in Binghamton. I amcharged with cataloguing, cleaningand reshelving a four thousandspecim collection of mountedbirds and ummals. It’s a life timejob.” F also writes that “In 1983I saw retired Prof. Vermillion athanecaning. My wife (MarleneWieman, WAPAA, ‘42) and I spent adelightful afternoon at his home.In 1985, I was in Athens for anElderhostel and spoke on the phonewith 1)’. B1.ickle. He sounded fullof zip, as usual.”

trk K. Wourm.s. Mark received hisPh.D.Tran Boston University infbrticulture. He spent a year inthe Peace Corp and is now GroundsCurator and Horticulturalist at theooklyn Zoological Gardens. Hisaddress is 82—74 Austin St., .Ipt.1, Kew Gardens, NY 11415.

The Kraft Connection: Three of ourPh.D. graduates, Daniel Dylewski(1981), Robert Martin (1984), andDavid Pechak (1977), are anployedin the microstructure groupat thetechnology center of Kraft, Inc.,Glenview, illinois.

ALUMNI CONThIBI.TrIONS

Contributions from alumni tothe College and its departmentsmake a real difference in thequality of our faculty, curriculumand student jrograms. When you hearfrom the College of Arts andSciences concerning our annualgiving campaign, The Annual RollCall for Excellence, pleaseconsider designating yourcontribution for the BotanyDepartment. We are hoping topurchase some of the followingsupplies and equipment withcontributions that you designatefor the Department of Botany: slideprojector ($600), plant growthchamber ($800), video cassetterecorder ($850), fiber optic lightsource ($365), computer ($750),tapes ($150), and spectrophotometer($2,000).

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