| | 1 | Author
| Ralf Hautzel, Heidrun Anke | Requires cookie* | | | Title
| Screening of Basidiomycetes and Ascomycetes for Plant Growth Regulating Substances. Introduction of the Gibberellic Acid Induced de-novo Synthesis of Hydrolytic Enzymes in Embryoless Seeds of Triticum aestivum as Test System  | | | | Abstract
| A new test system for the detection of plant growth regulating activities was successfully employed. In a screening for inhibitors of the gibberellic acid controlled synthesis of hydrolytic enzymes in embryoless wheat seeds (T riticum aestivum) 160 cultures of ascomycetes and basi diomycetes were tested. In the extracts of two cultures inhibitory activities were detected. From fermentations of a Hypholoma-species (basidiomycetes) 3,5-dichloro-4-methoxybenzyl alcohol \ yas isolated as the active principle. Galiellalactone and two other new phytotoxins were isolated from cultures of the ascomy-cete G aliella rufa. At concentrations of 50 |ig/ml all four compounds inhibited the de-novo synthesis of a-amylases, proteases, and phosphatases. Further investigations on the mode of action revealed, that all four metabolites interfere with early steps of the biosynthetic path ways induced by gibberellic acids. In vivo, the germination of the seeds of several plants was inhibited by these compounds. | | | |
Reference
| Z. Naturforsch. 45c, 1093—1098 (1990); received July 19 1990 | | | |
Published
| 1990 | | | |
Keywords
| Galiella rufa, Hypholoma species, a-Amylase, Plant Growth Regulator, Galiellalactone, 3, 5-Dichloro-4-methoxybenzyl Alcohol | | | |
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| default:Reihe_C/45/ZNC-1990-45c-1093.pdf | | | | Identifier
| ZNC-1990-45c-1093 | | | | Volume
| 45 | |
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