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野生大麦通过改变对盐胁迫的生理反应来提高栽培大麦的耐盐性。

from wild barley improves salt-tolerance of cultivated barley by altering physiological responses to salt stress.

作者信息

Wang Zhengfeng, Liu Jing, White James F, Li Chunjie

机构信息

Economic Crops and Malt Barley Research Institute, Gansu Academy of Agricultural Science, Lanzhou, China.

State Key Laboratory of Herbage Improvement and Grassland Agro-Ecosystems, Key Laboratory of Grassland Livestock Industry Innovation, Ministry of Agriculture and Rural Affairs, Engineering Research Center of Grassland Industry, Ministry of Education, Gansu Tech Innovation Center of Western China Grassland Industry, Centre for Grassland Microbiome, College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou, China.

出版信息

Front Microbiol. 2022 Nov 24;13:1044735. doi: 10.3389/fmicb.2022.1044735. eCollection 2022.

DOI:10.3389/fmicb.2022.1044735
PMID:36504776
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9730248/
Abstract

INTRODUCTION

is a cultivable fungal endophyte that lives in symbiosis with wild barley () to which it confers salt tolerance. This study tested the hypothesis that derived from wild barley has the potential to increase salt tolerance in cultivated barley under salt stress.

METHODS

To test this hypothesis, the growth response, physiological parameters, and metabolic profiles of barley plants inoculated with (E+) and those not inoculated with (E-) were compared under salt stress.

RESULTS

Compared with E- barley plants, E+ barley plants had significantly increased plant height, shoot biomass, total biomass, chlorophyll content, osmotic synthesis, and accumulation of stress adaptation metabolites. increased the salt stress tolerance of cultivated barley, and the positive effects correlated with different salt stress conditions.

DISCUSSION

These results suggest that has promising potential for enhancing the salt tolerance of barley. New insights into the mechanisms underlying this barley-fungal endophyte association are provided, and interesting questions regarding the role of in fungus-enhanced tolerance to salt stress in this symbiosis are raised.

摘要

引言

是一种可培养的真菌内生菌，与野生大麦（）共生，赋予其耐盐性。本研究检验了源自野生大麦的在盐胁迫下具有提高栽培大麦耐盐性潜力的假设。

方法

为检验该假设，比较了在盐胁迫下接种（E+）和未接种（E-）的大麦植株的生长反应、生理参数和代谢谱。

结果

与E-大麦植株相比，E+大麦植株的株高、地上部生物量、总生物量、叶绿素含量、渗透合成以及胁迫适应代谢物的积累均显著增加。提高了栽培大麦的耐盐胁迫能力，且积极效应与不同盐胁迫条件相关。

讨论

这些结果表明在提高大麦耐盐性方面具有广阔的潜力。提供了对这种大麦-真菌内生菌关联潜在机制的新见解，并提出了关于在这种共生关系中真菌增强耐盐胁迫能力方面作用的有趣问题。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/262d2244460e/fmicb-13-1044735-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/9291f1e12f42/fmicb-13-1044735-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/87a63d13bc83/fmicb-13-1044735-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/b43aeef19e64/fmicb-13-1044735-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/0c420fdd122f/fmicb-13-1044735-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/28ba57c00ba9/fmicb-13-1044735-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/516bf6427e4c/fmicb-13-1044735-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/262d2244460e/fmicb-13-1044735-g0007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/9291f1e12f42/fmicb-13-1044735-g0001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/87a63d13bc83/fmicb-13-1044735-g0002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/b43aeef19e64/fmicb-13-1044735-g0003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/0c420fdd122f/fmicb-13-1044735-g0004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/28ba57c00ba9/fmicb-13-1044735-g0005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/516bf6427e4c/fmicb-13-1044735-g0006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9927/9730248/262d2244460e/fmicb-13-1044735-g0007.jpg

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