Alternaria alternata was found to release certain low-molecular weight host-specific toxins (HSTs) such as tenuazonic acid, tentoxin and zinniol . These toxins not only damage plant cell membranes but also cause permeability changes in the cell wall, that may contribute to plant browning and death .
Alternaria alternata produces low-molecular weight toxins (HSTs) like tenuazonic acid, tentoxin, and zinniol that damage plant cell membranes and cause changes in the cell wall permeability, leading to browning and death of plants.