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On the Nature of the Influence of Some Mycelial Actinobacteria on the Spring Wheat Seeds Germination in Soils

Authors
  • Shoba, S. A.1
  • Gracheva, T. A.1
  • Stepanov, A. L.1
  • Fedotov, G. N.1
  • Gorepekin, I. V.1
  • 1 Lomonosov Moscow State University, Moscow, 119991, Russia , Moscow (Russia)
Type
Published Article
Journal
Doklady Biological Sciences
Publisher
Pleiades Publishing
Publication Date
May 01, 2021
Volume
498
Issue
1
Pages
85–88
Identifiers
DOI: 10.1134/S0012496621030030
Source
Springer Nature
Keywords
Disciplines
  • General Biology
License
Yellow

Abstract

AbstractThe effect of pre-sowing treatment of spring wheat seeds with suspensions of various actinomycete strains has been studied. It has been found that 4 out of 18 strains studied had a stimulating effect on seed germination in soils and plant development. The stimulation of seeds by these strains was not observed during seed germination in sand. It has been suggested that the mechanism of acceleration of seed development by actinomycetes could be based not only on the release of stimulating biologically active substances, but also on the consumption of allelotoxins by these microorganisms. The test carried out to study the possibility of actinomycete growth on a medium containing one of the most common allelotoxins, coumarin, has shown that actinomycetes promoting seed germination develop on this medium more intensively compared to strains that do not affect or inhibit the germination of spring wheat seeds. This confirms the proposed hypothesis that actinomycetes can stimulate seed germination through consumption of soil allelotoxins.

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