10 Questions
Which of the following is NOT a cause of plant diseases?
Phanerogams
What is the causal organism for rice blast disease?
Pyricularia oryzae
How would you describe the conidia of Pyricularia oryzae?
Hyaline to pale olive, bicelled (two-septate), with pyriform to obclavate shape
What do the lesions caused by rice blast disease look like?
Elliptical lesions resembling a spindle shape, which tapers towards each end
What is the causal organism for Rhizoctonia solani?
Rhizoctonia solani
What are the objectives of Plant Pathology Exercise 1?
- To become familiar with the structures and characteristics of pathogens causing plant diseases. 2. To recognize the signs and symptoms of plant disease.
What are the causes of plant diseases?
True Fungi, Fungal-like Oomycetes, Bacteria, Phytoplasmas, Nematodes, Viruses, Viroids, Phanerogams
What is the causal organism for Rice Blast disease?
Pyricularia oryzae
What is the appearance of the lesions caused by Rice Blast disease?
Elliptical lesions resembling a spindle shape, which tapers towards each end. Center of the spot is whitish to gray with brown to reddish brown margin.
Describe the appearance of the conidia of Pyricularia oryzae.
The conidia are hyaline to pale olive, bicelled (two-septate), with pyriform to obclavate shape.
Test your knowledge on the causes and diagnosis of plant diseases with this quiz. Learn about true fungi, bacterial pathogens, viruses, and more. Recognize the signs and symptoms of plant diseases and become familiar with the structures and characteristics of different pathogens.
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