Flashcards on Plant Diseases: Agents, Diagnosis, Management
Plant Diseases: Agents, Diagnosis, Management Guide
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Plant pathogenic bacteria
8 cards
Card 1
Question: What type of cells are bacteria and how do they differ from fungi in cellular organization?
Answer: Bacteria are single-celled microorganisms that do not have an organized nucleus, unlike fungi.
Card 2
Question: Are most bacteria found in nature capable of invading plants and causing disease?
Answer: No; only a small percentage of bacteria found in nature are capable of invading living plants and causing plant disease.
Card 3
Question: Do plant pathogenic bacteria have cell walls and what is their common shape?
Answer: Yes, bacteria have cell walls, and most plant pathogenic bacteria are rod-shaped.
Card 4
Question: How do bacteria primarily reproduce and what is notable about the visibility of their initial presence in plants?
Answer: Bacteria reproduce primarily by cell division, which can occur in a short period of time, and their initial presence or growth within a plant is usual
Card 5
Question: Can bacteria invade intact, healthy plant tissues?
Answer: No; unlike fungi, bacteria cannot invade plant tissues that are intact and healthy.
Card 6
Question: Through what routes do bacteria most commonly infect plants?
Answer: Most infections occur through wounds, wounds made by insect feeding, and natural plant openings such as nectaries or stomates.
Card 7
Question: What are common ways bacteria are spread from plant to plant?
Answer: Bacteria are spread by splashing water (rain or irrigation), by insects, and through cultural practices (e.g., contaminants on pruning shears, plants
Card 8
Question: Can bacteria be transmitted via seeds?
Answer: Yes, bacteria can be transmitted by seeds from infected plants.