Plant Growth Promoting Potential of Phormidium sp. ISC108 on Seed Germination, Growth Indices and Photosynthetic Efficiency of Maize (Zea mays L.)

Journal of Phycological Research Pub Date : 2020-02-16 DOI:10.29252/jpr.3.2.375

H. Younesi, Seyedeh Batool Hassani, A. A. G. Ravandi, N. Soltani

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引用次数: 1

Abstract

Cyanobacteria are oxygenic, photosynthetic prokaryotes with unique potential to enhance plant growth, development, and productivity. The effects of Phormidium sp. ISC108 was evaluate on seed germination, seedling growth criteria and photosynthetic efficiency of maize. Phormidium sp. ISC108 was applied to soil via irrigation whereas control group was irrigated via sterilized water. A significant promotion in seed germination was observed in Phormidium sp. ISC108 treated maize seeds. Similarly, seedling growth indices of treated plants including biomass production, plant heights and leaf area significantly enhanced. Chlorophyll content as well as chlorophyll a fluorescence kinetics was also positively influenced by Phormidium sp. ISC108 application. Quantum yield of photosynthesis, primary photochemical reactions, rate of exiton transfer to electron transport chain, yield of electron transport and performance index of photosynthetic apparatus significantly increased in response to Phormidium sp. ISC108 application in soil. However, values of thermal dissipation of absorbed light showed a significant reduction as a result of Phormidium sp. ISC108 treatment. Considering remarkable growth promoting properties, Phormidium sp. ISC108 may offer a feasible economical and environmental-friendly candidate as bio-fertilizer in sustainable maize production.

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Phormidium sp. ISC108对玉米种子萌发、生长指标及光合效率的促进作用

蓝藻是一种氧气、光合作用的原核生物，具有促进植物生长、发育和生产力的独特潜力。研究了施磷剂(Phormidium sp. ISC108)对玉米种子萌发、幼苗生长指标和光合效率的影响。施磷磷sp. ISC108灌溉土壤，对照组消毒水灌溉土壤。结果表明，经Phormidium sp. ISC108处理的玉米种子萌发率显著提高。处理后植株的生物量、株高、叶面积等幼苗生长指标均显著提高。施磷草对叶绿素含量和叶绿素a荧光动力学也有积极影响。土壤中施磷草(Phormidium sp. ISC108)显著提高了光合作用的量子产量、初级光化学反应、电子传递链出入口转移速率、电子传递率和光合机构的性能指标。然而，吸收光的热耗散值由于磷磷sp. ISC108处理而显着降低。鉴于磷磷具有显著的促生长特性，它可能是一种经济、环保的玉米可持续生产生物肥料。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Journal of Phycological Research

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