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植物促生细菌LpBc - 47可减轻盐碱胁迫对……的损害 。 （原文此处似乎不完整）

The Plant Growth-Promoting Bacterium LpBc-47 Can Alleviate the Damage of Saline-Alkali Stress to .

作者信息

Shi Miaoxin, Zhang Lingshu, Sun Hao, Ji Shangwei, Cui Huitao, Wan Wenhao, Liu Xingyu, Tian Ao, Yang Wei, Wang Xinran, Yang Fengshan, Jin Shumei

机构信息

Key Laboratory of Saline-Alkali Vegetation Ecology Restoration of the Ministry of Education, College of Life Sciences, Northeast Forestry University, Harbin 150028, China.

Heilongjiang Agricultural Technology Extension Station, Harbin 150090, China.

出版信息

Microorganisms. 2025 May 28;13(6):1248. doi: 10.3390/microorganisms13061248.

DOI:10.3390/microorganisms13061248
PMID:40572136
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12195322/
Abstract

Soil salinization severely impacts plant cultivation. () exhibits tolerance to saline-alkali stresses. One strain, LpBc-47, possesses the ability of growth promotion and saline-alkali tolerance. The microbial diversity of was assessed through metagenomic sequencing. LpBC-47 obtained from was subjected to physiological and biochemical analyses and whole-genome sequencing. The effects of endophytic bacteria on plants were evaluated by measuring growth parameters, physiological indices, antioxidant enzyme activities, and ROS content. Microbial diversity analysis revealed that the abundance of endophytic bacteria in decreased under saline-alkali conditions, whereas the abundance of increased. Physiological and biochemical analysis showed that LpBC-47 has the characteristics of promoting growth and reducing plant damage caused by salt-alkali stress, such as phosphorus solubilization, nitrogen fixation, siderophore production, IAA, and ACC deaminase synthesis. Genomic analysis revealed that LpBC-47 contains growth-associated and stress-alleviation genes. GFP indicated the colonization of LpBc-47 in the roots and bulbs of . The LpBc-47 inoculant plant increased leaf length and dry weight, elevated proline and chlorophyll levels, enhanced antioxidant enzyme activity, and reduced oxidative damage. This study highlights the potential of LpBc-47 for improving plant growth under saline-alkali conditions.

摘要

土壤盐渍化严重影响植物种植。（）对盐碱胁迫具有耐受性。其中一个菌株LpBc - 47具有促进生长和耐盐碱的能力。通过宏基因组测序评估了（）的微生物多样性。对从（）中获得的LpBC - 47进行了生理生化分析和全基因组测序。通过测量生长参数、生理指标、抗氧化酶活性和活性氧含量来评估内生细菌对植物的影响。微生物多样性分析表明，在盐碱条件下，（）中内生细菌的丰度降低，而（）的丰度增加。生理生化分析表明，LpBC - 47具有促进生长和减轻盐碱胁迫对植物造成损害的特性，如解磷、固氮、产铁载体、合成吲哚 - 3 - 乙酸（IAA）和ACC脱氨酶。基因组分析表明，LpBC - 47含有与生长相关和缓解胁迫的基因。绿色荧光蛋白（GFP）显示LpBc - 47在（）的根和鳞茎中定殖。接种LpBc - 47的植物增加了叶长和干重，提高了脯氨酸和叶绿素水平，增强了抗氧化酶活性，并减少了氧化损伤。本研究突出了LpBc - 47在盐碱条件下改善植物生长的潜力。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/b822f9ff861a/microorganisms-13-01248-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/2750c2a6c16b/microorganisms-13-01248-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/a6b6508de57d/microorganisms-13-01248-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/4c08f846cc64/microorganisms-13-01248-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/ab3cacfc948f/microorganisms-13-01248-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/a701d39e6e6a/microorganisms-13-01248-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/a6bd9bd40bb8/microorganisms-13-01248-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/32ae6457bed5/microorganisms-13-01248-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/6f31454e35df/microorganisms-13-01248-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/37325ae5c93d/microorganisms-13-01248-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/b822f9ff861a/microorganisms-13-01248-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/2750c2a6c16b/microorganisms-13-01248-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/a6b6508de57d/microorganisms-13-01248-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/4c08f846cc64/microorganisms-13-01248-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/ab3cacfc948f/microorganisms-13-01248-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/a701d39e6e6a/microorganisms-13-01248-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/a6bd9bd40bb8/microorganisms-13-01248-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/32ae6457bed5/microorganisms-13-01248-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/6f31454e35df/microorganisms-13-01248-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/37325ae5c93d/microorganisms-13-01248-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/9e52/12195322/b822f9ff861a/microorganisms-13-01248-g010.jpg

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