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接种通过调节生理反应和土壤微生物群落提高幼苗的抗旱性和生长。

Inoculation Improves Drought Resistance and Growth of Seedlings through Regulating Physiological Responses and Soil Microbial Community.

作者信息

Yu Cun, Jiang Xian, Xu Hongyun, Ding Guijie

机构信息

College of Forestry, Guizhou University, Huaxi District, Guiyang 550025, China.

College of Eco-Environmental Engineering, Guizhou Minzu University, Guiyang 550025, China.

出版信息

J Fungi (Basel). 2023 Jun 21;9(7):694. doi: 10.3390/jof9070694.

DOI:10.3390/jof9070694
PMID:37504683
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10381829/
Abstract

Drought stress poses a serious threat to seedling growth in southern China. species, as beneficial microorganisms, have been widely used in agriculture to enhance plant growth and drought tolerance, but the interaction mechanisms remain unclear. To investigate the effect of drought-resistant inoculation on growth under drought stress, the plant physiological indicators and rhizosphere microbiome diversity were measured to identify -activated mechanisms. inoculation significantly promoted growth under drought treatment, and enhanced nitrogen, phosphorus, and potassium absorption compared with those of non-inoculated seedlings. treatment alleviated the damage to cell membranes and needle tissue structure, and significantly increased antioxidant enzyme activities, osmotic substance contents, and photosynthesis in in response to drought stress. Soil nutrient contents, activities of sucrase, phosphatase, and urease as well as the relative abundances of the dominant genera , , and were elevated in the rhizosphere soil of inoculated with under drought stress. A network analysis showed that certain crucial dominant taxa driven by inoculation, including , , , , , , , and , had more correlations with other microorganisms in the soil. enhanced seedling growth under drought stress by regulating physiological responses and soil microbial community.

摘要

干旱胁迫对中国南方的幼苗生长构成严重威胁。[具体物种名称]作为有益微生物，已在农业中广泛用于促进植物生长和提高耐旱性，但其相互作用机制仍不清楚。为了研究抗旱[具体物种名称]接种对干旱胁迫下[具体植物名称]生长的影响，测定了植物生理指标和根际微生物群落多样性，以确定[具体物种名称]激活的机制。[具体物种名称]接种显著促进了干旱处理下[具体植物名称]的生长，与未接种的幼苗相比，提高了氮、磷和钾的吸收。[具体物种名称]处理减轻了干旱胁迫对细胞膜和针叶组织结构的损伤，并显著提高了[具体植物名称]的抗氧化酶活性、渗透物质含量和光合作用。在干旱胁迫下，接种[具体物种名称]的[具体植物名称]根际土壤中的土壤养分含量、蔗糖酶、磷酸酶和脲酶活性以及优势属[具体属名1]、[具体属名2]和[具体属名3]的相对丰度均有所提高。网络分析表明，[具体物种名称]接种驱动的某些关键优势类群，包括[具体类群1]、[具体类群2]、[具体类群3]、[具体类群4]、[具体类群5]、[具体类群6]、[具体类群7]和[具体类群8]，与土壤中的其他微生物有更多的相关性。[具体物种名称]通过调节生理反应和土壤微生物群落，增强了干旱胁迫下[具体植物名称]的幼苗生长。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7ffff3cdcf1a/jof-09-00694-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/aa2ac8dd89d3/jof-09-00694-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7efc6d60bdee/jof-09-00694-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/bdf10da6b6f3/jof-09-00694-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/c9fa86dfb059/jof-09-00694-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/6b4712a909b5/jof-09-00694-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7ec32e6a5baf/jof-09-00694-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/e1dea615f75f/jof-09-00694-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7ffff3cdcf1a/jof-09-00694-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/aa2ac8dd89d3/jof-09-00694-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7efc6d60bdee/jof-09-00694-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/bdf10da6b6f3/jof-09-00694-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/c9fa86dfb059/jof-09-00694-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/6b4712a909b5/jof-09-00694-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7ec32e6a5baf/jof-09-00694-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/e1dea615f75f/jof-09-00694-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/5590/10381829/7ffff3cdcf1a/jof-09-00694-g008.jpg

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