Hng lot cy xanh trong nh cha cht c cht ngi
Vic trng vi cy cnh nh trong nh hoc ni lm vic l s thch ca ngi Si Gn trong nhiu nm nay. Tuy nhin, cc nh sinh hc cnh bo trong s c nhiu loi cy cha c t gy cht ngi nu n phi.> S tht tin n cy xanh trong nh c c cht ngi
Trao i vi VnExpress.net, Tin s sinh hc Bi Vn L, trng i hc Khoa hc T nhin TP HCM cho bit, gia nh c tr nh tt nht khng nn trng cc loi hoa, cy cnh. V c th loi hoa cy cnh cc k c m b m khng bit.
ng ni: Tt nht, cc b m, ng b, ngi trng tr nn cn thn, tuyt i khng cc b nghch, cm hay cho bt c loi l cy no vo ming. Hn th, b c th nghch t trng trong chu rt bn, d nhim giun sn. Nhng loi hoa cy cnh khng ch c vi b m cn c vi c ngi ln.
Sau y l danh sch mt s cy cnh c c do Tin s L cung cp, cc loi ny u c trng ph bin Vit Nam:
1. Trc o: Tn khoa hc l Nerium oleander. Ton thn Trc o u c cht cc c Oleandrin, Neriin. Ngi ta c th b ng c do chm vo cy hoc nut phi. Nh th gy bun nn, i ma, tiu chy, ri lon nhp tim, nng th c th mt kim sot c th, hn m. Nu khng x l kp thi s dn n t vong.
Vic phi kh hoc nu chn cng khng lm mt tnh c ca loi thc vt ny. Khng trng trc o cnh ngun nc (ging n, b nc...) v l, hoa trc o rng xung lm nhim c nc. Trn th gii ghi nhn nhiu trng hp bnh nhi b ng c do m hoa cy trc o.
Hin nay, trc o ang c trng rt nhiu trn cc tuyn ph, vn hoa, ni cng cng.
2. Thm i: Tn khoa hc l Lantana spp. Qu c cht c Lantanin alkaloid Hoc lantadene A gy bng rt ng rut, gin c, ri lon tun hon mu v c th dn n t vong.
3. Ngot ngho: Tn khoa hc l Gloriosa superba. C v ht cy c cht kch c Colchicine v mt s alkaloid khc m nu n vo s gy t li, lm cho c th mt cm gic, nng th hn m v nu khng x l kp thi s dn n t vong.
4. C c dc, mt s loi c king, hoa Lu ly: Tn khoa hc l Datura metel, thuc h c Solanaceae. Tip xc qua da vi bt k v tr no trn cy u c th gy ni mn , nga, chng mt, nhc u, thy o gic, hn m v c th gy m mt hoc t vong.
Cng chnh nh c cht c trong hoa l thn cy, m c c dc cn c dng lm thuc, nu dng vi liu khng ch, c th cha ho hen, say sng, tr mn nht.
5. Quyn: Tn khoa hc l Rhododendron occidentale. Tt c cc b phn ca cy u c cht c Andromedotoxin v Arbutin glucoside. Ngi b ng c do loi cy ny thng c triu chng bun nn, chy nc di, i ma, u oi, chng mt, kh th, mt cn bng. Mt lng 100 n 225 gram l Quyn gy ng c nng cho tr em 25 kg.
6. Thin iu: Tn khoa hc l Strelitzia reginae. Hoa v ht ca cy c cc cht gy ng c ng rut. Tip xc hoc n hoa, ht s khin bun nn, tiu chy, chng mt.
7. Mn king: Tn khoa hc l Caladium hortulanum. Tt c cc b phn ca cy u c cht c Calcium oxalate v Asparagine Khi n phi s dn n nguy c b bng, nga rt vng ming, nim mc rut.
8. Hoa loa kn Arum/ lan: Tn khoa hc l Zantedeschia aethiopica. L v c cy u c cht c ng rut Calcium oxalate. Khi n phi loi thc vt ny c th b i ma, bng rt b mt nim mc.
9. Xng rng bt tin: Tn khoa hc l Euphorbia milii splendens. Nha cy gy bng rt da khi tip xc.
10. Anh Tho: Tn khoa hc l Cyclamen persicum. C cy c cht c Alkaloids gy kh tiu, tiu chy, i ma nu n phi.
11. Chui ngc: Tn khoa hc l Sedum morganianum: Tt c b phn c cht Glucosides gy mt mi, kh th, tiu chy nu n phi.
.12. Mn l ln: Tn khoa hc l Colocasia spp Tt c cc b phn trn cy u cha cht Calcium oxalate Asparagine gy nga v bng rt c hng, tiu chy nu n phi.
13. Hng mn: Tn khoa hc l Anthurium spp. Tt c cc b phn ca cy u c c t Calcium oxalate v Asparagine Vic n phi loi thc vt ny c th gy bng rt vng hng, d dy v rut.
14. D lan (tn khoa hc l Hyacinth orientalis). C D Lan c c t Alkaloid gy vp b, y bng, bun nn, tiu chy nu n phi.
15. Cm t cu: Tn khoa hc l Hydrangea macrophylla. L v c cy c cht Hydragin-cyanogenic glycoside gy tiu chy, i ma, th gp.
16. Xng rng king: Tn khoa hc l Euphorbia trigona. Nha cy C th gy bng da v mt nu tip xc, gy t cng li v ming, nn ma nu n phi.
17. Thy tin: Tn khoa hc l Narcissus spp. C ca cy c cht Alkaloids gy chng mt, bun nn, tiu chy, run ry ton thn, hn m, c th dn n t vong khi n phi.
18. Mt s loi tru (Tru b, Tru ng,...): C tn khoa hc l Philodendron spp. L v thn cy c cht c Calcium oxalate gy tiu chy, bun nn, bng rt nim mc ming khi n phi.
19. Tulip: Tn khoa hc l Tulipa spp. C cy c cht Tulipene, n phi s gy chng mt, bun nn.
20. Lc bnh: Tn khoa hc l Eichhornia crassipes. Tt c cc b phn ca cy u c c gy chng n khng tiu, i ma trn ch, mo v mt s vt nui khc khi n phi.
21. Hu Lili: Tn khoa hc l Hippeastrum puniceum. C cy c cht c Lycorine gy tiu chy, bun nn, i ma khi n phi. Nha cy c th gy nn ma nu n phi. Trnh tip xc trc tip vi da v c th gy bng rt, nga...
22. Ng ng: Tn khoa hc l Jatropha podagrica. Ton thn cy, c bit l c v ht c cha cht c Curcin gy chng mt v bun nn nu n phi.
Thm nhiu cy cnh c c
Trc o, M tin... l nhng loi cy xanh trng trong nh c cht cc c; nhiu cy khc thuc h ny nh Hong nn, Thng thin, B u... cng c khng km, c th gy cht ngi hay gia sc nu n phi. > S tht tin n cy xanh trong nh c c cht ngi/ Hng lot cy xanh trong nh cha cht c cht ngi
Cc nh nghin cu v thc vt hc khuyn co, nhng cy xanh ny cng khng nn trng ph bin khu dn c.
Trao i vi VnExpress.net, Thc s Nguyn Tun Bnh, Trng ban Nng lm, Trng i hc Lm nghip ng Nai cho bit, trong s nhng cy cnh c ny, c nhiu loi c dng bo ch lm tho dc cha bnh. "Tuy nhin ch nn trng trong vn thuc c dng, khng nn s dng lm cnh t gia hoc ni cng cng trnh b ng c, Thc s Bnh nhn mnh.
Sau y l 10 loi cy cnh c c do ng Bnh cung cp, u c trng ph bin Vit Nam hin nay.
1. M tin: Tn khoa hc l Strychnos nux vomica. Ht cy cha cc alcaloid: strychnin, brucin, vomicin, b-colubrin, pseudostrychnin, N methyl-sec-pseudobrucin, strucin, glucosid loganin v cht c strychnine, gy nn nu n phi.
Ht M tin chn ri xung t thng c nht v phi kh bo ch lm thuc cha bnh thp khp, nhc mi tay chn, au dy thn kinh, bi lit, nhc c, gim cng kin rut, i dm, thiu mu. Tuy nhin trong iu kin bnh thng nu n phi ht M tin c th t vong v cc c.
2. B u: Tn khoa hc l Hura crepitans L hoc Sandbox Tree hay Monkey diner Bell, thuc h thu du Euphorbiaccea. Nha cy mu trng c, c c, c dng lm thuc dit trng. Ngoi ra, dn gian cn dng B u vi lng nh cha to bn.
3. Hi ni: Cn gi l i hi ni thuc h Hi, tn khoa hc l Illiciaceae. y l h thc vt c hoa. B phn c nht ca cy l qu v l. Do trong qu v l cy c tinh du gn ging tinh du hi dng cha bnh nn c mt s trng hp s dng nhm ng c.
Ung phi tinh du Hi ni khin ngi bn chn bt rt, vt v, kh chu, chn tay lnh, c hng nng rt, bng v d dy au d di, km theo triu chng nn ma, chy di lin tc. 4. Ti c: Thuc h Hnh ti, tn khoa hc l Liliaceae. Ti c l mt loi c sng lu nm. Thn Ti c mt c to, t c mc ln 3-4 hoa mu tm hng nht rt p, l to v di. Ton b thn cy Ti u c c gy t vong cho ngi v gia sc nu n phi.
5. Hong nn: Cn gi l V dn, thuc h M tin, tn khoa hc l Loganiaccae. Qu cy hnh cu, v ngoi cng, trong cha nhiu ht c hnh khuy o, rt ging ht cy M tin. V v ht Hong nn c cht cc c thuc bng A c th gy t vong. Trong ng y, Hong nn l v thuc c c tnh mnh c bo ch tr chng au thn kinh ngoi bin, au c, au khp xng, lit mm, nhc c.
6. Sng d: Cn gi l cy Sng b, Sng tru, tn khoa hc l Strophanthus divaricatus (Lour) Hook. Et Arn, Apocynaceae. Sng d thuc h Trc o (tn khoa hc l Apocynaccae).
L, r, ht v nha cy Sng d u c cht c cht ngi. Ngi xa cn dng ht cy ch thuc c tm ln cung tn dng trong sn bn. Tuy nhin do ht cy cha cc glycozit divaricozit nn cn c bo ch lm thuc iu tr suy tim.
Ngi b ng c Sng d c triu chng bn chn, vt v, nn ko di gy hi chng mt nc v ri lon in gii, hoa mt chng mt, nhc u, tai kh th, mt m v ri lon nhp tim... Nu khng cp cu kp thi c th dn n t vong. 7. C-ca cnh: Tn khoa hc l Erythroxylum coca, cy cao khong 3-5 mt, l dng chit xut cht ma ty cocain. Tc dng ban u ca C-ca cnh lm phn chn tinh thn dn n nghin. Nhai l cy ny vi liu cao s gy xu, lit h hp. Trong th gii ma ty, C-ca c ch thnh cht bt pha tim hoc ht.
Cca cnh thuc chi Cca c danh php khoa hc: Erythroxylum hoc Erythroxylon. y l mt chi thc vt c hoa trong h Erythroxylaceae.
Mt loi Cca khc c tn Erythroxylum vacciniifolium c s dng lm cht kch thch tnh dc trong y hc c truyn Brazil.
8. Thng thin (cn gi l Hong gip trc o): tn khoa hc l Thevetia peruviana Pers, thuc h Trc o. Ton thn cy rt c, nht l ht. Trong dn gian, ngi ta dng ht cy ny nghin nt lm thuc tr su b.
9. Tru (cn gi l Du Sn, Thin nin ng, Mc du th): Tn khoa hc l Vernicia foridii hoc Vernicia Montana, thuc h Thu du (Euphorbiaccae). Tru l mt cy to, cao t 8m tr ln. L v ht cy u c c t saponozit.
10. du (cn gi l C gu tu): Tn khoa hc l Aconitum carmichaeli Debeauux . Thuc h Mao lng (Ranunculaccae). Cy c c thng c dng tm tm ln u mi tn sn bn.
Ngi ta cn dng du thi mng ngm ru xoa bp au nhc, sai khp, dp gy chn tay.
