Biodiversity of micromycetes isolated from the rhizosphere of halophytic plants of Kazakhstan

This paper presents the results of a study of the biodiversity of soil microscopic fungi isolated in the autumn-summer period from the rhizosphere of halophytic plants growing in the Akmola, Almaty and Turkestan regions (Kazakhstan). To create biopreparations that stimulate growth and protect planting material in forest park zones and horticultural farms, we isolated and identified 352 cultivated microorganisms belonging to the genera Bacillus, Pseudomonas, Arthrobacter, Curtobacterium, Erwinia and others. In total, we studied 8 microscopic fungi. Isolation and cultivation of fungi were carried out on Czapek medium at 28 °С ± 2 °С for 10 days. In addition to using methods for studying the cultural and morphological features of fungi, molecular genetic methods were also used. Identification using the method of comparing nucleotide sequences encoding the 18SрRNA gene of the cultures we isolated showed that their diversity is limited to representatives of only three genera: Fusarium, Alternaria, Penicillium, with the latter two dominating.