期刊
MICROORGANISMS
卷 9, 期 8, 页码 -出版社
MDPI
DOI: 10.3390/microorganisms9081729
关键词
abiotic stress; endophytes; reactive oxygen species (ROS); stress genes; plant defense system
类别
资金
- USDA-NIFA Multistate Project [W4147]
- New Jersey Agricultural Experiment Station
Endophytic microorganisms inside host plants play a crucial role in maintaining host health, providing nutrients, and enhancing stress tolerance, especially in combating abiotic stresses. The defense mechanisms of plants under stress conditions can be alleviated by endophytes through the production of antioxidants.
Endophytic microorganisms present inside the host plant play an essential role in host fitness, nutrient supply and stress tolerance. Endophytes are often used in sustainable agriculture as biofertilizers, biopesticides and as inoculants to mitigate abiotic stresses including salinity, drought, cold and pH variation in the soil. In changing climatic conditions, abiotic stresses create global challenges to achieve optimum crop yields in agricultural production. Plants experience stress conditions that involve endogenous boosting of their immune system or the overexpression of their defensive redox regulatory systems with increased reactive oxygen species (ROS). However, rising stress factors overwhelm the natural redox protection systems of plants, which leads to massive internal oxidative damage and death. Endophytes are an integral internal partner of hosts and have been shown to mitigate abiotic stresses via modulating local or systemic mechanisms and producing antioxidants to counteract ROS in plants. Advancements in omics and other technologies have been made, but potential application of endophytes remains largely unrealized. In this review article, we will discuss the diversity, population and interaction of endophytes with crop plants as well as potential applications in abiotic stress management.
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