Phytotoxins as potential herbicides |
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| Authors: | G Strobel D Kenfield G Bunkers F Sugawara J Clardy |
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| Institution: | (1) Department of Plant Pathology, Montana State University, 59717-0002 Bozeman, Montana, USA;(2) Laboratory of Herbicide and Plant Growth, Institute of Physical and Chemical Research, Riken, Wako-shi Saitama, (Japan);(3) Department of Chemistry, Baker Laboratory, Cornell University, 14853 Ithaca, New York, USA |
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| Abstract: | Phytotoxins are produced in various culture media by many fungi that are pathogenic to weeds. These phytotoxins belong to a wide array of chemical substances including sesquiterpenoids, sesterterpenoids, diketopiperazines, peptides, spirocyclic lactams, isocoumarins, and polyketides. In most cases, the phytotoxin belongs to a family of related compounds produced by the fungus. These related compounds may or may not be phytotoxins. Phytotoxin production, in some cases, is optimized by the addition of a host extract to the culture medium. Biological activity is usually observed in a range of concentrations from 10–3 to 10–6 M. The concept of using these molecules, derivatives thereof, or related compounds as herbicides should be explored. |
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| Keywords: | Phytotoxins herbicides weeds fungi Cochliobolus Drechslera Phoma Alternaria |
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