AK-Toxin II
https://www.abfrontier.com/shop/cell25sk39172-ak-toxin-ii-81525
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AK-Toxin II is a phytotoxic metabolite that can be isolated from culture broth of alternaria alternata Japanese pear pathotype. AK-Toxin II induces characteristic veinal necrosis and rapid K+ loss on susceptible pear leaves.
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