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Three new phytotoxins produced by Pyrenochaeta terrestris: Pyrenochaetic acids A,B and C.
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1981
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PhytoalexinBiosynthesisBioorganic ChemistryNew PhytotoxinsBiochemistryMedicineNatural SciencesCulture FiltratesNatural Product BiosynthesisToxicologyEcotoxicologyMicrobiologyEnvironmental ToxicologyPlant ToxinPharmacologyPyrenochaeta TerrestrisPhytochemistryPyrenochaetic Acids A
Three phytotoxins named pyrenochaetic acids A, B and C were isolated from culture filtrates of Pyrenochaeta terrestris, and the structures were determined to be 4-crotonoyl-3-methoxy-5-methylbenzoic acid (I), 4-(3-hydroxybutyroyl)-3-methoxy-5-methylbenzoic acid (II) and 4-butyroyl-3-methoxy-5-methylbenzoic acid (III), respectively. Their phytotoxicities were demonstrated in bioassays.