SOS5 gene-abscisic acid crosstalk and their interaction with antioxidant system in Arabidopsis thaliana under salt stress
| Autor: | Tuba Acet, Asim Kadioglu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0106 biological sciences
0301 basic medicine Antioxidant Arabidopsis thaliana Physiology medicine.medical_treatment Mutant Salt stress Plant Science 01 natural sciences Lipid peroxidation 03 medical and health sciences chemistry.chemical_compound Abscisic acid Gene expression medicine Proline Molecular Biology fungi Wild type Plant physiology food and beverages Cell biology 030104 developmental biology chemistry Antioxidant enzymes sos5-1mutant 010606 plant biology & botany Research Article |
| Zdroj: | Physiol Mol Biol Plants |
| Popis: | SOS5locus, encodes cell wall adhesion protein under salt stress conditions in plants, and it is required for normal cell expansion as well as for sustaining cell wall integrity and structure. However, it is still unknown how this gene locus-ABA cross-talk and interacts with the antioxidant mechanism under salt stress conditions. For this purpose, the study focused on mutantsos5-1plant treated with ABA under NaCl stress and observed its growth and development as well as stomatal aperture, lipid peroxidation, proline, hydrogen peroxide (H2O2) and ABA contents, and some antioxidant enzyme activities. In addition, the expression levels of ABA related genes have been analysed by RT-PCR after stress application. According to findings,sos5-1mutant plants treated with ABA under salt stress resulted in eliminated cellular damage compared to those which are solely exposed to salt stress; other observations include closing of stomata, decreased H(2)O(2)content, increased amount of proline, and similarity with the wild type due to induced antioxidant enzyme activities. Besides, both ABA biosynthetic and inducible gene expressions of the mutant plant under salt stress were lower compared to the control, and catabolism gene expression was higher. As a result,SOS5gene in synergy with ABA, scavenge the ROS by stimulating antioxidant system, leads to an increase in stress related gene expressions and thus contributes to salinity tolerance. This study is significant in the way that it shows howSOS5gene locus, under salt stress conditions, interacts with antioxidant system in sustaining cell wall integrity. WOS:000564296900001 2-s2.0-85089961644 PubMed: 32943819 |
| Databáze: | OpenAIRE |
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