Stevia rebaudiana Bertoni responses to salt stress and chitosan elicitor

This study examined the effect of chitosan elicitor with four different concentrations (0, 0.2, 0.4 and 0.6 g/l) on physiological and biochemical properties of stevia under four levels of salinity stress (0, 50, 100, 150 mM level of NaCl). Salt stress caused reduction of chlorophyll a (Chl a ), chlo...

Full description

Saved in:
Bibliographic Details
Published inPhysiology and molecular biology of plants Vol. 26; no. 5; pp. 965 - 974
Main Authors Gerami, Mahyar, Majidian, Parastoo, Ghorbanpour, Akram, Alipour, Zeinab
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.05.2020
Springer Nature B.V
Subjects
Abiotic stress
Antioxidants
Biological and Medical Physics
Biomedical and Life Sciences
Biophysics
Catalase
Cell Biology
Chitosan
Chlorophyll
Level (quantity)
Life Sciences
Malondialdehyde
Peroxidase
Photosynthesis
Photosynthetic pigments
Physiology
Pigments
Plant Physiology
Plant Sciences
Proteins
Reduction
Research Article
Salinity
Salinity effects
Salts
Sodium chloride
Steviol glycosides
Stevioside
Stress
Chitosan elicitor
HPLC
Salt stress
Stevia rebaudiana
Online AccessGet full text

Cover

More Information
Summary:This study examined the effect of chitosan elicitor with four different concentrations (0, 0.2, 0.4 and 0.6 g/l) on physiological and biochemical properties of stevia under four levels of salinity stress (0, 50, 100, 150 mM level of NaCl). Salt stress caused reduction of chlorophyll a (Chl a ), chlorophyll b (Chl b ), total chlorophyll, carotenoid and total protein content. The increment of malondialdehyde (MDA) content was not significant in all NaCl levels, while the CAT and POX activities were increased as well as stevioside and rebaudioside A under salinity stress. On one side, chitosan treatments could compensate the reduction of physiological traits such as photosynthetic pigments and protein content. On the other side, chitosan caused multiple increases in malondialdehyde content, antioxidant enzymes activity (catalase and peroxidase), steviol glycosides (stevioside and rebaudioside A) under salt stress. We report for the first time, the potential of chitosan to enhance salinity-tolerant abilities in stevia through increment of the salt-adaptive factors and to diminish harmful damages caused by NaCl stress.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0971-5894
0974-0430
DOI:10.1007/s12298-020-00788-0