Expression of PR genes and genes of heat shock proteins of potato plants in vitro under infection with ring rot and heat stress

V N Nurminsky,A I Perfileva,A S Stolbikov,A V Pomortsev

doi:10.7124/bc.00096b

V N Nurminsky, A I Perfileva + Show 2 more

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https://doi.org/10.7124/bc.00096b

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Abstract

Expression of PR genes and genes of heat shock proteins of potato plants in vitro under infection with ring rot and heat stress

Highlights

Plants are exposed to various stress factors of both abiotic and biotic nature
It is known that HSP101 plays a leading role in thermotolerance in plants [7], in the first series of experiments we have chosen the conditions, under which maximum synthesis of Heat shock proteins (HSPs) in vitro under heat treatment is observed in potato plants
As far as the genes HSP17.8 and HSP60 are concerned, a multiple increase in the level of transcripts after heat treat ment of the plants was revealed with respect to the control plants

Summary

Introduction

Plants are exposed to various stress factors of both abiotic and biotic nature. To maintain homeostasis in plants under stress conditions, nutrient and energy redistribution between growth, development processes and protective reactions takes place [1].Heat shock proteins (HSPs) are synthesized in plants in response to the increase in tem perature to protect from damages induced by extremely high temperature. HSPs act as chaperones, preventing from protein denaturation and aggregation, and promoting the restoration of protein activity after the exposure to high temperature [2, 3]. HSPs (i) provide for tempo rary binding and folding facilitation of imma ture peptides in course of translation, (ii) disas semble oligomeric protein complexes, (iii) con trol biological activity of regulatory proteins (including the transcription factors), (iv) facili tate protein transport through plant cell mem branes, (v) prevent against aggregation of par tially denatured proteins due to intermolecular. It is known that HSPs are syn thesized in response to high tempera ture, and to a wide range of stress factors, e.g., salinity and dehydration [2, 5]

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