Destruction and Transformation of Phytohormones By Microorganisms

Applied Biochemistry and Microbiology - Phytohormones are a group of structurally diverse, low-molecular organic substances that regulate all processes of plant life. It is well known that many...     

Isolation, identification, and characteristics of the phytotoxin produced by the fungus Alternaria cirsinoxia

An individual substance (20 mg/l) exhibiting phytotoxic properties, which, on the basis its spectral characteristics, was identified as zinniol, was obtained from the fungus Alternaria cirsinoxia. The nonspecific activity of this phytotoxin, with respect to plants of different families, was demonstrated. The minimum concentration (200 μg/ml) at which zinniol damages creeping thistle leaves and the median inhibition concentration (IC ₅₀) for rat embryonic fibroblasts (264 μg/ml) were determined.     

Molecular Analysis of the Rhizosphere Microbial Communities from Gramineous Plants Grown on Contrasting Soils

Microbiology - The composition of rhizosphere microbial communities was studied for different species and varieties of agricultural gramineous plants (rye and wheat) grown in the soils contrasting...