منابع مشابه
Cornexistin: a new fungal metabolite with herbicidal activity.
Cornexistin, a new compound demonstrating promising herbicidal activity, was purified from the culture filtrate of a newly-isolated fungus identified as Paecilomyces variotii SANK 21086. The compound was extracted with organic solvents from the culture filtrate, purified using column chromatography on Sephadex LH-20 and finally crystallized from methylene chloride. Following analysis of its phy...
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Covering: 2007 to 2015 Fungal phytotoxins are secondary metabolites playing an important role in the induction of disease symptoms interfering with host plant physiological processes. Although fungal pathogens represent a heavy constraint for agrarian production and for forest and environmental heritage, they can also represent an ecofriendly alternative to manage weeds. Indeed, the phytotoxins...
متن کاملTriazines Herbicidal Assessed Activity
Correlation coefficients and associated squared values are used as assessment parameters in validation of structure-activity relationships. Seven correlation coefficients were calculated for models that characterized the relationship between chemical structure the herbicidal activity of a triazine analogues series. Three previously reported models were compared by using Pearson (rPrs), Spearman...
متن کاملProduction of cladospirone bisepoxide, a new fungal metabolite.
Cladospirone bisepoxide (1), a novel metabolite, was isolated from cultures of a fungus which was characterized as a coelomycete by the formation of pycnidia. By optimization of media and fermentation conditions, a titer of up to 1.5 g/liter on shake level and 1.16 g/liter on bioreactor scale could be achieved. The isolation of the compound was performed by solvent extraction of the culture bro...
متن کاملSynthesis and Herbicidal Activity of New Hydrazide and Hydrazonoyl Derivatives
Three new hydrazide and five new hydrazonoyl derivatives were synthesized. The chemical structures of these compounds were confirmed by 1H-NMR, IR spectroscopy and elemental analysis. The prepared compounds were tested for their activity to inhibit photosynthetic electron transport in spinach chloroplasts and growth of the green algae Chlorella vulgaris. IC50 values of these compounds varied in...
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ژورنال
عنوان ژورنال: The Journal of Antibiotics
سال: 1991
ISSN: 0021-8820,1881-1469
DOI: 10.7164/antibiotics.44.1065