In the ecosystem, the interaction between plants and microorganisms is of crucial significance for plant evolution and the maintenance of ecological balance. The genus Streptomyces is a group of bacteria widely distributed and often colonizes in plant rhizospheres, roots and other parts. Since it can produce a variety of bioactive substances, it plays a positive role in biological control and promoting plant growth. A large number of studies have shown that drought, as an environmental factor, will affect the plant – associated microbial community. Streptomyces shows significant advantages over other microorganisms under drought conditions. Notably, it can endow plants with drought tolerance.
However, currently our understanding of the molecular and biochemical mechanisms of the interaction between plants and Streptomyces is still limited. Moreover, when Streptomyces is applied in the field, its effect is unstable. In addition, due to the lack of in – depth research on the co – evolutionary relationship between plants and Streptomyces, it is difficult for us to fully understand this complex relationship. Meanwhile, the impacts of different plant species, soil types and environmental conditions on the relationship between plants and Streptomyces also need to be further clarified.
This research focuses on the interaction mechanism between plants and Streptomyces under drought stress. Through in – depth exploration, it aims to reveal how to better utilize this relationship to enhance plant drought tolerance and clarify whether there is a co – evolutionary relationship between them, so as to provide a solid theoretical basis and practical guidance for agricultural production to effectively cope with drought stress.
Drought, as a common and far – reaching environmental stress factor, significantly affects the growth and development process of plants and also has a huge impact on the soil microbial community. It is worth noting that under drought conditions, Streptomyces is significantly enriched in plant rhizospheres and roots. Moreover, the enrichment degree of Streptomyces varies significantly among different plant species and growth stages. For example, under drought conditions, C4 plants accumulate more Streptomyces in their roots than C3 plants.
