principles of plant pathology topic 1 oomycota

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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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