How do bacteria typically enter plants?

How do bacteria typically enter plants?

• A. Through wounds and natural openings (stomata)
• B. Through intact epidermis
• C. Through seeds only
• D. Through petals

Answer: (A)

Bacteria enter plants mainly through openings or breaks in the surface. The plant’s epidermis and cuticle form a strong barrier, so intact tissue is not easily penetrated. The common entry points are wounds from pruning, feeding by insects, or other damage, and natural openings such as stomata on leaves. Stomata are pores used for gas exchange that can be exploited by bacteria when conditions are favorable. Seeds or petals aren’t the typical entry routes for most bacterial infections, though some pathogens can be seedborne or associated with floral tissues; the usual path you’ll see is through wounds and stomata.

Bacteria enter plants mainly through openings or breaks in the surface. The plant’s epidermis and cuticle form a strong barrier, so intact tissue is not easily penetrated. The common entry points are wounds from pruning, feeding by insects, or other damage, and natural openings such as stomata on leaves. Stomata are pores used for gas exchange that can be exploited by bacteria when conditions are favorable. Seeds or petals aren’t the typical entry routes for most bacterial infections, though some pathogens can be seedborne or associated with floral tissues; the usual path you’ll see is through wounds and stomata.