BESC 204 Exam 2 Question and answers verified to pass
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Course
BESC 204
Institution
BESC 204
BESC 204 Exam 2 Question and answers verified to pass Oomycota - correct answer -not true fungi, more closely related to algae
-kingdom stramenopila
-cellulose walls
-diploid nuclei
-coenocytic (no septa)
-sexual oospores
-asexual zoospores that have two flagella
-biochemical pathway for ...
BESC 204 Exam 2 Question and answers
verified to pass
Oomycota - correct answer ✔-not true fungi, more closely related to algae
-kingdom stramenopila
-cellulose walls
-diploid nuclei
-coenocytic (no septa)
-sexual oospores
-asexual zoospores that have two flagella
-biochemical pathway for lysine synthesis is achieved like plants
-ultrastructure of mitochondria is like plants
Phytophthora infestans - correct answer ✔oomycete that causes late blight
of potato
-caused the potato famine
Koch's Postulates - correct answer ✔evidence required to establish etiologic
relationship between microorganism and disease
1. microorganism must be observed in every case of the disease
2. microorganism must be isolated and grown in pure culture
3. the pure culture, when inoculated in animals, must reproduce the disease
4. microorganism must be recovered from the diseased animal
Anton de Bary - correct answer ✔father of plant pathology
-discovered phytophthora infestans
, Bordeaux Mixture - correct answer ✔world's first fungicide
-mixture of copper sulfate and "lime"
-invention was the result of downy mildew of grape
Plasmopara viticola - correct answer ✔oomycete that causes downy mildew
of grape
Transfer spores - correct answer ✔-aeciospores are produced on barberry
and can only infect wheat
-basidiospores are produced on wheat plants and can only infect barberry
Puccinia Pathway - correct answer ✔route stretching from northern Mexico
to northern US and Canada where wheat rust spreads
Wheat Rust - correct answer ✔Puccinia graminis
-rusty colored blotches present on stems and leaves (urediospores)
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