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Understanding the mode of regulation of proline biosynthesis for drought tolerance in transgenic rice overexpressing PDH47 gene

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Title Understanding the mode of regulation of proline biosynthesis for drought tolerance in transgenic rice overexpressing PDH47 gene
 
Creator Singha, Dhanawantari L.
Sarma, Sangeeta
Singh, Salvinder
 
Subject Proline
Drought
Pea DNA helicase 47
DEAD-box helicases
Agrobacterium-mediated transformation
 
Description 73-81
Plants respond to drought stress by inducing proline accumulation which would promote drought tolerance. During drought, several reports described activation/overexpression of genes encoding enzymes for glutamate and ornithine-based proline biosynthesis pathways that provide tolerance to the plant. Pea DNA helicase 47 (PDH47), involves in drought stress tolerance. However, the exact mechanism for drought tolerance is not known. The present study will provide insights into how overexpression of a PDH47 in transgenic rice confers drought tolerance by further escalating the accumulation of proline. Here, the developed transgenic plants expressing PDH47 showed increased tolerance to drought with increased expression of proline biosynthesis genes. Therefore, understanding the combined regulation for expression of proline metabolism genes during drought stress in rice overexpressing drought stress-responsive DEAD-box helicase like PDH47 may result in engineering economically important crop plants for more tolerant to drought stress.
 
Date 2020-11-13T07:12:29Z
2020-11-13T07:12:29Z
2020-04
 
Type Article
 
Identifier 0975-0967 (Online); 0972-5849 (Print)
http://nopr.niscair.res.in/handle/123456789/55657
 
Language en_US
 
Rights CC Attribution-Noncommercial-No Derivative Works 2.5 India
 
Publisher NISCAIR-CSIR, India
 
Source IJBT Vol.19(2) [April 2020]