Tentoxin is produced by which fungus, which causes spots and chlorosis in plants?

Correct option is A

· Correct answer: (a) Alternaria alternata
· Alternaria alternata produces tentoxin, a toxin that causes chlorosis and necrotic spots in the leaves of infected plants. This fungus affects a wide range of crops, including tomatoes and peppers.
Other options:
· (b) Alternaria brassicae: Causes alternaria leaf spot in mustard, but it does not produce tentoxin.
· (c) Alternaria brassicicola: A similar species to Alternaria brassicae but does not produce tentoxin.
· (d) Alternaria solani: Causes early blight in tomatoes but not tentoxin production.