Analogs of host-specific phytotoxin produced by Helminthosporium maydis,race T: I. Synthesis |
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Authors: | Yoshikatsu Suzuki H.W. Knoche J.M. Daly |
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Affiliation: | Department of Agricultural Biochemistry, University of Nebraska, Lincoln, Nebraska 68583-0718 USA |
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Abstract: | Fourteen analogs of the host-specific corn phytotoxin (T toxin) obtained from cultures of the fungal plant pathogen, Helminthosporium maydis, race T, were synthesized. Addition of difunctional Grignard reagents to aldehyde intermediates resulted in shorter versions (C15–C26) of native toxin (C35–C45), containing the β-polyketol functions which appear to account for the specificity and very high toxicity (10?8–10?9M) of T toxin toward certain corn varieties. |
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