Effect of inoculation with a thermotolerant plant growth promoting Pseudomonas putida strain AKMP7 on growth of wheat (Triticum spp.) under heat stress

被引：127

作者：

Ali, Shaik. Zulfikar ^{[1
]}

Sandhya, Vardharajula ^{[1
]}

Grover, Minakshi ^{[1
]}

Linga, Venkateswar Rao ^{[2
]}

Bandi, Venkateswarlu ^{[1
]}

机构：

[1] Cent Res Inst Dryland Agr, Dept Microbiol, Hyderabad, Andhra Pradesh, India

[2] Osmania Univ, Dept Microbiol, Hyderabad 500007, Andhra Pradesh, India

来源：

JOURNAL OF PLANT INTERACTIONS | 2011年 / 6卷 / 04期

关键词：

climate change; heat stress; microbial colonization; wheat; Pseudomonas putida; WINTER-WHEAT; TEMPERATURE; TOLERANCE; SALINITY; PROLINE; MICROORGANISMS; PHYSIOLOGY; CROPS; YIELD; CO2;

D O I：

10.1080/17429145.2010.545147

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The present study was carried out to investigate the effect of plant growth promoting thermotolerant Pseudomonas putida strain AKMP7 on the growth of wheat plants to heat stress. The results indicated the superior performance by P. putida strain AKMP7 in improving survival and growth of wheat plants under heat stress. The bacterium significantly increased the root and shoot length, dry biomass, tiller, spike let and grain formation of wheat over uninoculated plants. Inoculation reduced membrane injury and the activity of several antioxidant enzymes such as SOD, APX and CAT under heat stress. Inoculation improved the levels of cellular metabolites like proline, chlorophyll, sugars, starch, amino acids, and proteins compared to uninoculated plants. Scanning electron microscopy studies confirmed the colonization of the organism on the root surface. This result suggests the possible role of microorganisms in mitigating adverse effects of climate changes on crop growth and may lead to development of microbe based climate-ready technology.

引用

页码：239 / 246

页数：8

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