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Publication Type J
Authors Cai, D. Y., Y. Xu, F. Zhao, Y. Zhang, H. R. Duan and X. N. Guo
Title Improved salt tolerance of Chenopodium quinoa Willd. contributed by Pseudomonas sp. strain M30-35
Source Peerj
Author Keywords Pseudomonas sp. strain M30-35 Chenopodium quinoa Salt stress Photosynthesis Plant-growth-promoting growth-promoting rhizobacteria saline stress saponins plants antioxidant expression resistance enhance health
Abstract Background. Plant-growth-promoting rhizobacteria (PGPR) can promote plant growth and enhance plant tolerance to salt stress. Pseudomonas sp. strain M30-35 might confer abiotic stress tolerance to its host plants. We evaluated the effects of M30-35 inoculation on the growth and metabolite accumulation of Chenopodium quinoa Willd. during salt stress growth conditions. Methods. The effects of M30-35 on the growth of C. quinoa seedlings were tested under salt stress. Seedling growth parameters measured included chlorophyll content, root activity, levels of plant-phosphorus (P), and saponin content. Results. M30-35 increased biomass production and root activity compared to non-inoculated plants fertilized with rhizobia and plants grown under severe salt stress conditions. The photosynthetic pigment content of chlorophyll a and b were higher in M30-35-inoculated C. quinoa seedlings under high salt stress conditions compared to non-inoculated seedlings. The stability of P content was also maintained. The content of saponin, an important secondary metabolite in C. quinoa, was increased by the inoculation of M30-35 under 300 mM NaCl conditions. Conclusion. Inoculation of M30-35 rescues the growth diminution of C. quinoa seedlings under salt stress.
Author Address [Cai, Deyu; Zhao, Fei; Guo, Xiaonong] Northwest Minzu Univ, Biomed Res Ctr, Key Lab Biotechnol & Bioengn State Ethn Affairs C, Lanzhou, Peoples R China. [Cai, Deyu; Xu, Ying; Zhang, Yan; Guo, Xiaonong] Northwest Minzu Univ, Coll Life Sci & Engn, Lanzhou, Peoples R China. [Cai, Deyu; Guo, Xiaonong] Northwest Minzu Univ, Biomed Res Ctr, China Malaysia Natl Joint Lab, Lanzhou, Peoples R China. [Duan, Huirong] Chinese Acad Agr Sci, Lanzhou Inst Husb & Pharmaceut Sci, Lanzhou, Peoples R China. Guo, XN (corresponding author), Northwest Minzu Univ, Biomed Res Ctr, Key Lab Biotechnol & Bioengn State Ethn Affairs C, Lanzhou, Peoples R China.; Guo, XN (corresponding author), Northwest Minzu Univ, Coll Life Sci & Engn, Lanzhou, Peoples R China.; Guo, XN (corresponding author), Northwest Minzu Univ, Biomed Res Ctr, China Malaysia Natl Joint Lab, Lanzhou, Peoples R China.; Duan, HR (corresponding author), Chinese Acad Agr Sci, Lanzhou Inst Husb & Pharmaceut Sci, Lanzhou, Peoples R China. duanhuirong@caas.cn; gxnwww@xbmu.edu.cn
ISSN 2167-8359
ISBN 2167-8359
29-Character Source Abbreviation PeerJ
Publication Date Jan
Year Published 2021
Volume 9
Digital Object Identifier (DOI) 10.7717/peerj.10702
Unique Article Identifier WOS:000607472600016

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