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Interactive role of salicylic acid and nitric oxide on transcriptional reprogramming for high temperature tolerance in Lablab purpureus L.: Structural and functional insights using computational approaches.

07:00 EST 11th January 2020 | BioPortfolio

Summary of "Interactive role of salicylic acid and nitric oxide on transcriptional reprogramming for high temperature tolerance in Lablab purpureus L.: Structural and functional insights using computational approaches."

Salicylic acid (SA) and nitric oxide (NO) are considered as putative plant growth regulators that are involved in the regulation of an array of plant's growth and developmental functions under environmental fluctuations when applied at lower concentrations. The possible involvement of NO in SA induced attenuation of high temperature (HT) induced oxidative stress in plants is however, still vague and need to be explored. Therefore, the present study aimed to investigates the biochemical and physiological changes induced by foliar spray of SA and NO combinations to ameliorate HT induced oxidative stress in Lablab purpureus L. Foliar application of combined SA and NO significantly improved relative water content (27.8%), photosynthetic pigment content (67.2%), membrane stability (45%), proline content (120%), expression of enzymatic antioxidants (7.1-18%) along with pod yield (110%). Heat Shock Factors (HSFs) play crucial roles in plants abiotic stress tolerance, however there structural and functional classifications in L. purpureus L. is still unknown. So, In-silico approach was also used for functional characterization and homology modelling of HSFs in L. purpureus. The experimental findings depicted that combine effect of SA and NO enhances tolerance in HT stressed L. purpureus L. plants by regulating physiological functions, antioxidants, expression and regulation of stress-responsive genes via transcriptional regulation of heat shock factor.

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Name: Journal of biotechnology
ISSN: 1873-4863
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