Physiological and proteomics insights into salt tolerance of two Jerusalem artichoke cultivars

Jerusalem artichoke ( Helianthus tuberosus L.) is an insulin-containing crop, which has been paid an intensive attention in recent decades. Although, some progress has been made in the biochemistry of Jerusalem artichokes (JA), the inner adaptive mechanism of salt tolerance among JA varieties is sti...

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Published inJournal of plant biochemistry and biotechnology Vol. 30; no. 3; pp. 613 - 622
Main Authors Yang, Min, Sun, Xing, Zhu, Juhua, Liu, Yenan, Chen, Ni, Zhao, Gengmao
Format Journal Article
LanguageEnglish
Published New Delhi Springer India 01.09.2021
Springer Nature B.V
Subjects
Bioaccumulation
Biomedical and Life Sciences
Cell Biology
Chloroplasts
Cultivars
Helianthus tuberosus
Insulin
Jerusalem artichokes
Life Sciences
Plant Biochemistry
Plant tissues
Protein Science
Proteomics
Receptors
Saline environments
Salinity tolerance
Salt
Salt tolerance
Seedlings
Short Communication
Sodium chloride
Ultrastructure
Cellular ultrastructures
Salt stress
Ion homeostasis
Antioxidant enzyme activity
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Summary:Jerusalem artichoke ( Helianthus tuberosus L.) is an insulin-containing crop, which has been paid an intensive attention in recent decades. Although, some progress has been made in the biochemistry of Jerusalem artichokes (JA), the inner adaptive mechanism of salt tolerance among JA varieties is still unclear. Elucidating salt-tolerant differences by integrated stress physiology and proteomics approach will provide comprehensive insights into their adaptive mechanism for various JA varieties, therefore serving for the large-scare cultivation in salt-affected marginal lands. JA seedlings were initially grown in half-strength Hoagland solution, and then exposed to 100 and 200 mM NaCl for 30 days. We found that salt stress decreased the plant height, root length, fresh and dry weight in both varieties, and the decreasing extents of N1 ( Helianthus tuberosus var. N1) was greater than M1 ( Helianthus tuberosus var. M1). Chloroplast ultrastructure in N1 was severely damaged, but appeared unaltered in M1. Also, N1 remained lower selective for K + over Na + , exhibiting more Na + accumulation in plant tissues compared to M1. Penetrating cutting-edge elementary proteomic results showed the regulation of protein expression in M1 was much more positive than in N1. Taken together, these results illustrated the considerable differences in adaption to saline environment between varieties. Graphic abstract
ISSN:0971-7811
0974-1275
DOI:10.1007/s13562-020-00640-2