Plant Pathology Pre-class Survey

25 Questions  I  By Crlittle
Plant Pathology Pre-Class Survey

  
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1.  A definition of PLANT DISEASE should include which of the following concepts?
A.
B.
C.
D.
2.  Use the following symbols to determine the three corners of the DISEASE TRIANGLE: H1 = Resistant host H2 = Susceptible host P1 = Avirulent pathogen P2 = Virulent pathogen E1 = Non-conducive environment E2 = Conducive environment
A.
B.
C.
D.
E.
3.  Which of the following are SYMPTOMS of a plant disease?
A.
B.
C.
D.
E.
4.  Which of the following are SIGNS of a plant disease?
A.
B.
C.
D.
E.
5.  Disease-causing agents are BIOTIC if they are:
A.
B.
C.
D.
E.
6.  Place the following plant pathogens in correct relative SIZE (from smallest to largest): (N = Nematode, V = Viruses, B = Bacteria, F = Fungi, P = Parasitic plants)
A.
B.
C.
D.
7.  How do FUNGI infect plants?
A.
B.
C.
D.
8.  What is a HAUSTORIUM?
A.
B.
C.
D.
E.
9.  How do BACTERIA infect plants?
A.
B.
C.
D.
10.  How do VIRUSES infect plants?
A.
B.
C.
D.
11.  How can fungi and bacteria be DISSEMINATED from one place to another?
A.
B.
C.
D.
E.
12.  How do NEMATODES infect plants?
A.
B.
C.
D.
13.  What type of pathogen INOCULUM survives dormant in winter or summer and causes the original infections in the spring or autumn?
A.
B.
C.
D.
14.  How can facultative fungi and bacteria SURVIVE in between cropping cycles?
A.
B.
C.
D.
E.
15.  OBLIGATE BIOTROPHS are pathogens that:
A.
B.
C.
D.
16.  Which of the following is an example of a POLYCYCLIC  disease?
A.
B.
C.
D.
E.
17.  Which are examples of HORIZONTAL RESISTANCE?
A.
B.
C.
D.
18.  Use the symbols to determine which interaction illustrates the GENE-FOR-GENE concept: R1/r1 = Resistance gene 1 (host) R2/r2 = Resistance gene 2 (host) Avr1/avr1 = Avirulence gene 1 (pathogen) Avr2/avr2 = Avirulence gene 2 (pathogen)
A.
B.
C.
D.
E.
19.  Most plant virus GENOMES are composed of __________ and can therefore function as mRNA as soon as they are uncoated in the plant cell.
A.
B.
C.
D.
20.  Indicate the PLANT DISEASE MANAGEMENT strategies appropriate for VIRAL DISEASES.
A.
B.
C.
D.
E.
F.
21.  Indicate the PLANT DISEASE MANAGEMENT strategies appropriate for BACTERIAL DISEASES.
A.
B.
C.
D.
E.
F.
22.  Indicate the PLANT DISEASE MANAGEMENT strategies appropriate for FUNGAL DISEASES.
A.
B.
C.
D.
E.
F.
23.  Indicate the PLANT DISEASE MANAGEMENT strategies appropriate for NEMATODE DISEASES.
A.
B.
C.
D.
E.
F.
24.  Match the following Kansas diseases (left) with the type of causal agent (left).
A. Virus
A.
B. Bacterium
B.
C. Fungus
C.
D. Nematode
D.
E. Parasitic plant
E.
25.  Match the following Kansas diseases (left) with the type of causal agent (left).
A. Virus
A.
B. Bacterium
B.
C. Fungus
C.
D. Nematode
D.
E. Parasitic plant
E.
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