Principles of Plant Pathology
Principles of Plant Pathology Topic 1 Oomycota.
Mar 29, 2015
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Principles of Plant Pathology
Topic 1
Oomycota
Topic 2
Ascomycota
Topic 3
Symptoms
And Signs
Topic 4
Disease
Management
Topic 5
Terminology
Topic 6
Mycology
Jeopardy
Oomycota AscomycotaSymptoms And Signs
Disease Management
Terminology Mycology
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Final Jeopardy!
300
Oomycota for $100
The sexual spore of the Oomycota.
Oomycota for $100 Correct Question:
What is an oospore?
Oomycota for $200
One of the two survival spores or structures of the Oomycota.
Oomycota for $200 Correct Question:
What is a chlamydospore or oospore.
Oomycota for $300
The motile spore that typically infects the host.
Oomycota for $300 Correct Question:
What are zoospores?
Oomycota for $400
The hyphae in the Oomycota lack this structure, resulting in the organisms in this group being
referred to as coenocytic.
Oomycota for $400 Correct Question:
What are septations?
Oomycota for $500
Present in cell walls of true fungi, cell walls of organisms in the Oomycota do not contain this
ingredient
Oomycota for $500 Correct Question:
What is chitin?
Ascomycota for $100
Sexual spore produced in asci
Ascomycota for $100 Correct Question:
What are ascospores?
Daily Double
Daily Double Question
The two structures pictured here that give rise to apothecia.
Daily Double Answer
What is a mummy and a sclerotium?
Ascomycota for $300
The overwintering structure for powdery mildew fungi
Ascomycota for $300 Correct Question:
What are chasmothecia or cleistothecia?
Ascomycota for $400
The asexual spore responsible for secondary infections in
diseases caused by Ascomycota.
Ascomycota for $400 Correct Question:
What are condia?
Ascomycota for $500
Type of epidemic caused by the Dutch elm disease and chestnut
blight pathogens.
Ascomycota for $500 Correct Question:
What is polyetic?
Symptoms and Signs for $100
Yellowing caused by loss of chlorophyll
Symptoms and Signs for $100 Correct Question:
What is chlorosis?
Symptoms and Signs for $200
My presence is used in diagnosis of disease
Symptoms and Signs for $200 Correct Question:
What are signs?
Symptoms and Signs for $300
A localized area of necrosis.
Symptoms and Signs for $300 Correct Question:
What is a lesion?
Symptoms and Signs for $400
Symptoms and Signs for $400 Correct Question:
What are galls and teliospores?
Symptoms and Signs for $500
The period of time between infection and symptom
development.
Symptoms and Signs for $500 Correct Question:
What is incubation period?
Disease Management for $100
A compound that inhibits or kills fungi.
Disease Management for $100 Correct Question:
What is a fungicide?
Disease Management for $200
A cultural control practice that uses the planting of different
crops over time to reduce pathogen inoculum
Disease Management for $200 Correct Question:
What is crop rotation?
Disease Management for $300
Use of one organism to eliminate or control another organism.
Disease Management for $300 Correct Question:
What is a biocontrol?
Disease Management for $400
Removal of infected plants to prevent pathogen spread.
Disease Management for $400 Correct Question:
What is roguing?
Disease Management for $500
An effective treatment based on virus infection of a pathogen that
controlled Chestnut Blight in Europe but not North America.
Disease Management for $500 Correct Question:
What is hypovirulence?
Terminology for $100
Death of cells or tissue, usually accompanied by black or brown
discoloration.
Terminology for $100 Correct Question:
What is necrosis?
Terminology for $200
A living organism able to transmit or disseminate a pathogen
leading to a spread of a disease.
Terminology for $200 Correct Question:
What is a vector?
Terminology for $300
An organism that can live and multiply only on living cells;
sometimes used as a synonym of obligate parasite.
Terminology for $300 Correct Question:
What is a biotroph?
Terminology for $400
A site in or on a host plant where infection of host cells can occur.
Terminology for $400 Correct Question:
What is an infection court?
Terminology for $500
The percentage of plants affected by a disease within a population.
Terminology for $500 Correct Question:
What is disease incidence?
Mycology for $100
A mass of hyphae.
Mycology for $100 Correct Question:
What is a colony or mycelium?
Mycology for $200
Genus of pathogen that causes damping-off disease.
Mycology for $200 Correct Question:
What is Rhizoctonia?
Mycology for $300
Members of this group of fungus-like organisms cause downy
mildew diseases.
Mycology for $300 Correct Question:
What are oomycetes?
Mycology for $400
A fungal structure that absorbs nutrients from living cells.
Mycology for $400 Correct Question:
What is a haustorium?
Mycology for $500
The sexual stage in the life cycle of a fungus.
Mycology for $500 Correct Question:
What is the teleomorph stage?
Final Jeopardy Topic
Final Jeopardy Question
Final Jeopardy Answer
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