Influence of Microbial Surfactants on the Growth of Legumes

Shcheglova, N. S.

doi:10.15407/biotech8.01.076

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“…It is one of the reasons that biosurfactants enhance the action of biocides, phytohormones, etc. It also has been shown that biosurfactants can be used as effective growth stimulators for plants (Karpenko et al, 2013;Shcheglova et al, 2015). Based on the above, the aim of the work was to study the influence of trehalose lipids and rhamnolipids on the ability of plants to absorb mineral elements and to estimate the biosurfactant influence on the plant growth and yields of crop production.…”

Section: Introductionmentioning

confidence: 99%

Trehalose Lipid and Rhamnolipid Surfactants as Plant Growth Regulators

Koretska

Карпенко

et al. 2020

J microb biotech food sci

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The influence of biosurfactants of trehalose lipid nature (R. erythropolis Au-1) and rhamnolipid nature ( Pseudomonas sp. PS-17) on the efficiency of the absorption of K+ and Ca2+ ions and plants growth was studied. The seeds of soybean, wheat and sunflower after the pre-sowing treatment by the biosurfactants solutions were grown on a liquid nutrient medium. The residual contents of K+ and Ca2+ ions in the medium were different for the variants with the biosurfactants and control (water). Based on these parameters, it was possible to value the stimulating effect of the biosurfactants on the plants’ ability to absorb mineral elements from the nutrient medium. The plants after the pre-treatment by the biosurfactants absorbed on 10-40% (trehalose lipids) and 27-61% (rhamnolipid biosurfactants) K+ and Ca2+ ions more than control variants. The growth parameters of plants were increased on 17-24% (trehalose lipids) or 39-77% (rhamnolipid biosurfactants). The experiments with plants (wheat, soya and sunflower) were also conducted in field conditions. The results showed that the trehalose lipid and rhamnolipid biosurfactants provide an increase in crop yields on 19-23% as well as the yield quality. The obtained data allowed to suggest a possible mechanism for the influence of surfactants on the plant growth.

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Section: Introductionmentioning

confidence: 99%