The production of antifungal substances by bacteria has long been recognized and this knowledge is entering practical life through the use of bacterial antagonists to protect crops against their fungal enemies. Recently, it has become clear that in addition to diffusible substances, bacteria emit a wide range of volatile compounds into the atmosphere. Over the last ten years, evidence has accum...

This study presents the findings on influence of raspberry varieties species composition micromycetes in rhizosphere soil and vegetative organs plants organic production. The mycobiota Joan J Himbo-Top was analysed during plant ontogeny phytopathogenic microspecies leaves determined. It found that population is dominated by fungi: Septoria rubi, West, Botrytis cinerea, Pers, Aspergillus niger, ...

The efficiency of different natural plant extracts and of the chemical fungicide Micronite was carried out to determine their effects on the soil fungi particularly phytopathogenic and mycotoxigenic fungi Fusarium oxysporum, Alternaria alternata and Aspergillus flavus. In vitro studies were carried out to test the antifungal activity of 4 plant extracts; performed with either cold distilled wat...

Acting as competitive inhibitors of chitin synthase, nikkomycins and polyoxins are potent antibiotics against pathogenic fungi. Taking advantage of the structural similarities between these two peptidyl nucleoside antibiotics, genes required for the biosynthesis of the dipeptidyl moiety of polyoxin from Streptomyces cacaoi were introduced into a Streptomyces ansochromogenes mutant producing the...

Actinomycete strain SA198, isolated from a Saharan soil sample of Algeria, exhibited antimicrobial activity against Gram-positive and Gram-negative bacteria, and phytopathogenic and toxinogenic fungi. The morphological and chemotaxonomic characteristics of the strain were consistent with those of the genus Saccharothrix. Analysis of the 16S rRNA gene sequence of strain SA198 showed a similarity...

The essential oil obtained from leaves of Melissa officinalis L. (Family of Lamiaceae) growing in Algeria, was investigated for its chemical composition and in vitro antimicrobial activity. The chemical composition was determined by hydrodistillation and analyzed by GC/MS and GC-FID. Sixty-three compounds were identified in the essential oil, representing 94.10 % of the total oil and the yields...