Question

how microrganisms causing diseases in plants​

Answer 1

Answer:

Infection: This occurs when the pathogen invades the plant tissue and establishes a parasitic relationship between itself and the plant. Viruses, bacteria, and phytoplasmas are not able to actively penetrate or enter plant host tissues. Therefore they must rely on other methods to infect plant tissues and cells.

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Answer 2

hey there!

Plants also suffers from numerous kinds of diseases which shows many symptoms by which u can come to know that they are going through any kind of disease.

Ex-

Tobacco mosaic virus is caused by virus.

Citrus cancker is caused by bacteria.

Wheat rust is caused by fungus.

hope it's helpful