Influence of Mo and Fe on Photosynthetic and Nitrogenase Activities of Nitrogen-Fixing Cyanobacteria under Nitrogen Starvation
Sadvakasova A.K. Kossalbayev B.D. Token A.I. Bauenova M.O. Wang J. Zayadan B.K. Balouch H. Alwasel S. Leong Y.K. Chang J.-S. Allakhverdiev S.I.
March-1 2022MDPI
Cells
2022#11Issue 5
The potential of cyanobacteria to perform a variety of distinct roles vital for the biosphere, including nutrient cycling and environmental detoxification, drives interest in studying their biodiversity. Increasing soil erosion and the overuse of chemical fertilizers are global problems in developed countries. The option might be to switch to organic farming, which entails largely the use of biofertilisers. Cyanobacteria are prokaryotic, photosynthetic organisms with considerable potential, within agrobiotechnology, to produce biofertilisers. They contribute significantly to plant drought resistance and nitrogen enrichment in the soil. This study sought, isolated, and investigated nitrogen-fixing cyanobacterial strains in rice fields, and evaluated the effect of Mo and Fe on photosynthetic and nitrogenase activities under nitrogen starvation. Cyanobacterial isolates, isolated from rice paddies in Kazakhstan, were identified as Trichormus variabilis K-31 (MZ079356), Cylindrospermum badium J-8 (MZ079357), Nostoc sp. J-14 (MZ079360), Oscillatoria brevis SH-12 (MZ090011), and Tolypothrix tenuis J-1 (MZ079361). The study of the influence of various concentrations of Mo and Fe on photosynthetic and nitrogenase activities under conditions of nitrogen starvation revealed the optimal concentrations of metals that have a stimulating effect on the studied parameters.
Cyanobacteria , Heavy metals , Heterocyst , Nitrogenase , Photosynthesis
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Faculty of Biology and Biotechnology, Al-Farabi Kazakh National University, Al-Farabi Avenue 71, Almaty, 050038, Kazakhstan
Department of Chemical and Biochemical Engineering, Geology and Oil-Gas Business Institute Named after K. Turyssov, Satbayev University, Almaty, 050043, Kazakhstan
Tianjin Institute of Industrial Biotechnology, Chinese Academy of Sciences, No. 32, West 7th Road, Tianjin Airport Economic Area, Tianjin, 300308, China
College of Science, King Saud University, Riyadh, 12372, Saudi Arabia
Department of Chemical and Materials Engineering, Tunghai University, Taichung, 407, Taiwan
Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, 407, Taiwan
Department of Chemical Engineering, National Cheng Kung University, Tainan, 701, Taiwan
Controlled Photobiosynthesis Laboratory, K.A. Timiryazev Institute of Plant Physiology, Russian Academy of Sciences, Botanicheskaya Street 35, Moscow, 127276, Russian Federation
Faculty of Biology and Biotechnology
Department of Chemical and Biochemical Engineering
Tianjin Institute of Industrial Biotechnology
College of Science
Department of Chemical and Materials Engineering
Research Center for Smart Sustainable Circular Economy
Department of Chemical Engineering
Controlled Photobiosynthesis Laboratory
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