Plant-Growth-Promoting Rhizobacteria Modulate Carbohydrate Metabolism in Connection with Host Plant Defense Mechanism

文献类型： 外文期刊

第一作者： Su, Fan

作者： Su, Fan;Zhao, Bin;Dhondt-Cordelier, Sandrine;Vaillant-Gaveau, Nathalie

作者机构： Tianjin Acad Agr Sci, Inst Agroprod Safety & Nutr, Tianjin 300071, Peoples R China;Hebei Agr Univ, Coll Plant Protect, State Key Lab North China Crop Improvement & Regul, Baoding 071001, Peoples R China;Univ Reims, Unite Rech Resistance Indu & Bioprotect Plantes, USC INRAe 1488, F-51100 Reims, France

关键词： plant-growth-promoting rhizobacteria; photosynthesis; carbohydrate metabolism; defense mechanism

期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 2022影响因子：5.6； 五年影响因子：6.2 ）

ISSN： 1661-6596

年卷期： 2024 年 25 卷 3 期

页码：

收录情况： SCI

摘要： Plant-growth-promoting rhizobacteria (PGPR) could potentially enhance photosynthesis and benefit plant growth by improving soil nutrient uptake and affecting plant hormone balance. Several recent studies have unveiled a correlation between alterations in photosynthesis and host plant resistance levels. Photosynthesis provides materials and energy for plant growth and immune defense and affects defense-related signaling pathways. Photosynthetic organelles, which could be strengthened by PGPR inoculation, are key centers for defense signal biosynthesis and transmission. Although endophytic PGPRs metabolize plant photosynthates, they can increase soluble sugar levels and alternate sugar type and distribution. Soluble sugars clearly support plant growth and can act as secondary messengers under stressed conditions. Overall, carbohydrate metabolism modifications induced by PGPR may also play a key role in improving plant resistance. We provide a concise overview of current knowledge regarding PGPR-induced modulation in carbohydrate metabolism under both pathogen-infected and pathogen-free conditions. We highlight PGPR application as a cost-saving strategy amidst unpredictable pathogen pressures.

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