Phototrophic microorganisms for agricultural technology and food security

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Abstract

The main idea of the study was to find cyanobacteria for the development of fertilizers, plant protection products and as well as for the use in agro-biotechnology. The physiological and biochemical potential of 22 strains of cyanobacteria and its influence on the efficiency of plant-microbe interactions were studied. Promising cyanobacterial strains Nostoc sp. ACSSI 57, Desmonostoc muscorum ACSSI 149, Desmonostoc muscorum ACSSI 091 can be recommended for development of biofertilizer. Strain Nostoc calcicola ACSSI 82 is promising for the development of biopreparations with herbicidal action. Strains Nostoc sphaeroides ACSSI 150 and Nostoc linckia ACSSI 271 can be used as a basis for biological stimulants and inhibitors of plant growth and development. It depends on the level of physiological parameters during cultivation in artificial media. Bacterization with one-month culture of a strain Nostoc linckia ACSSI 271 and a homogenate of the strain Nostoc sphaeroides ACSSI 150 significantly increased seed germination of Triticum aestivum L. (by 22.2 and 11.0%, p < 0.05). Strains of cyanobacteria Nostoc linckia ACSSI 271, Nostoc calcicola ACSSI 82 and Nostoc sphaeroides ACSSI 150 are able to affect the enzymatic activity and productivity of Ambrosia artemisiifolia L. Phytomass of plants after bacterization essentially (the least significant difference(0.5) is 2.31) reduced by 1.4-1.6 times (28.7-39.3%) compared to control (12.59 g/plant) and depending on the strain and its form of preparation. This suggests that bacterization with these strains is a powerful inhibitory factor for Ambrosia artemisiifolia L.

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Didovich, S. V., Alekseenko, O. P., Pas, A. N., & Didovich, A. N. (2020). Phototrophic microorganisms for agricultural technology and food security. In IOP Conference Series: Earth and Environmental Science (Vol. 422). Institute of Physics Publishing. https://doi.org/10.1088/1755-1315/422/1/012042

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