Plant Growth Promoting and Stress Mitigating Abilities of Soil Born Microorganisms.

Q1 Agricultural and Biological Sciences
Shahid Ali, Linan Xie
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引用次数: 27

Abstract

Abiotic stresses affect the plant growth in different ways and at different developmental stages that reduce the crop yields. The increasing world population continually demands more crop yields; therefore it is important to use low-cost technologies against abiotic stresses to increase crop productivity. Soil microorganisms survive in the soil associated with plants in extreme condition. It was demonstrated that these beneficial microorganisms promote plant growth and development under various stresses. The soil microbes interact with the plant through rhizospheric or endophytic association and promote the plant growth through different processes such as nutrients mobilization, disease suppression, and hormone secretions. The microorganisms colonized in the rhizospheric region and imparted the abiotic stress tolerance by producing 1-aminocyclopropane-1- carboxylate (ACC) deaminase, antioxidant, and volatile compounds, inducing the accumulation of osmolytes, production of exopolysaccharide, upregulation or downregulation of stress genes, phytohormones and change the root morphology. A large number of these rhizosphere microorganisms are now patented. In the present review, an attempt was made to throw light on the mechanism of micro-organism that operates during abiotic stresses and promotes plant survival and productivity.

土壤微生物促进植物生长和缓解胁迫的能力。
非生物胁迫以不同的方式和不同的发育阶段影响植物生长,从而降低作物产量。不断增长的世界人口不断要求提高粮食产量;因此,利用低成本技术对抗非生物胁迫,提高作物产量是十分重要的。土壤微生物在极端条件下与植物一起在土壤中生存。结果表明,这些有益微生物在各种胁迫下促进植物的生长发育。土壤微生物与植物通过根际或内生相互作用,通过养分动员、疾病抑制、激素分泌等不同过程促进植物生长。微生物在根际定殖,通过产生1-氨基环丙烷-1-羧酸脱氨酶、抗氧化剂和挥发性化合物,诱导渗透物积累、胞外多糖的产生、胁迫基因和植物激素的上调或下调以及根形态的改变,赋予根际非生物抗逆性。大量这些根际微生物现在已获得专利。本文就微生物在非生物胁迫下促进植物生存和生产力的机制作一综述。
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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来源期刊
Recent patents on food, nutrition & agriculture
Recent patents on food, nutrition & agriculture Agricultural and Biological Sciences-Agronomy and Crop Science
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