I and II: Plant Pathology and Its Impact to Mankind

Question 1

SECTORS OF PLANT PATHOLOGY

Answer 1

1. mycology
2. bacteriology
3. nematology
4. virology

Question 2

POTATO LATE BLIGHT: SYMPTOMS

Answer 2

1. water-soaked lesions on leaves
2. rotting of leaves and stem
3. rotting of tuber

Question 3

POTATO LATE BLIGHT: IMPACT

Answer 3

1. Europe (1845)
2. irish potato famine

Question 4

HEINRICH ANTON DE BARY

Answer 4

1. father of mycology
2. discovered causal organism of potato late blight (1861)

Question 5

POTATO LATE BLIGHT: CAUSAL ORGANISM

Answer 5

1. Phytophthora infestans (fungi)

Question 6

ERGOTISM: CAUSAL ORGANISM

Answer 6

1. Claviceps purpurea (fungi)

Question 7

ERGOTISM: IMPACT

Answer 7

1. death due to consumption of contaminated rye bread
2. presence of alkaloid in sclerotia

Question 8

COFFEE RUST: CAUSAL ORGANISM

Answer 8

1. Hemileia vastatrix (fungi)

Question 9

COFFEE RUST: IMPACT

Answer 9

1. loss of crops (1870s)

Question 10

SOUTHERN CORN BLIGHT: CAUSAL ORGANISM

Answer 10

1. Cochliobolus heterostropus
2. Bipolaris maydis

Question 11

SOUTHERN CORN BLIGHT: IMPACT

Answer 11

1. loss of crops (1970)