| Autor: |
Trifonov, L. S., Ayer, W. A., Chakravarty, P., Hiratsuka, Y. |
| Předmět: |
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| Zdroj: |
European Journal of Forest Pathology; Oct1996, Vol. 26 Issue 5, p273-280, 8p |
| Abstrakt: |
Phellinus tremulae is the most important decay fungus on Populus treinuloides. In forest industries using aspen wood chips, two blue-stain fungi Ophiostoma crassivaginatum and Ophiostoma piliferum cause considerable reduction in the value of the end product. Thirty-eight homologues and analogues of 4-phenyl-3-butenoic acid were studied against P. tremulae, crassivaginatutm and piliferum. Varied inhibition of the in vitro growth of these fungi was observed at 1-1000 μg/mi. The wood-chip colonization by P. tremulae was not affected by the six most active compounds at 1 μg/mi, however, at 10 and 100 μg/mI the growth of P. tremuiae on wood chips was totally arrested. 4-Phenyl-3-butenoic acid and 4-phenyl-3-butynoic acid prevented blue-stain development on wood chips at 1μg/mi. P. tremulae is a serious pathogen that causes extensive decay of aspen. In a previous study, the growth inhibition of P. tremulae by metabolites of an antagonistic fungus Periophora polygonia. The reduction of growth and colonization of aspen wood chips by blue-stain fungi were also observed when treated with metabolites of antagonistic hyphomyceteous fungi. |
| Databáze: |
Complementary Index |
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