THE EFFECT OF BIPYRIDYL HERBICIDES ON THE LOSS OF NUTRIENTS FROM FUNGI

Autor:	Anthony J. E. Lyon, Ismail Bin Sahid, S. N. Smith
Rok vydání:	1981
Předmět:	Mucor biology Physiology Potassium Aspergillus niger chemistry.chemical_element Plant Science Phosphate biology.organism_classification Diquat chemistry.chemical_compound Mucor hiemalis chemistry Paraquat Botany Sodium azide Food science
Zdroj:	New Phytologist. 89:401-409
ISSN:	1469-8137 0028-646X
DOI:	10.1111/j.1469-8137.1981.tb02321.x
Popis:	Summary Paraquat and diquat cause rapid loss of potassium and phosphate from Aspergillus niger, Penicillium frequentans, Mucor hiemalis and Zygorrhynchus heterogamus. The rate of loss is greater at higher concentrations of herbicide, particularly from Zygorrhynchus and Mucor. A brief incubation in paraquat or diquat is followed by sustained loss of potassium when colonies of the four species are transferred to water. Sodium azide also stimulates loss of potassium but thisceases when colonies are transferred to water. Paraquat enhances the level of malondialdehyde, a breakdown product of membrane fatty acids, in Zygorrhynchus and Mucor. These results are discussed with reference to the possible mode of action of bipyridyl herbicides in fungi.
Databáze:	OpenAIRE
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