Cereal plants form complex networks with their associated microbiome in the soil environment. A complex system including variations of numerous parameters of soil properties and host traits shapes the dynamics of cereal microbiota under drought. These multifaceted interactions can greatly affect carbon and nutrient cycling in soil and offer the potential to increase plant growth and fitness under drought conditions. Despite growing recognition of the importance of plant microbiota to agroecosystem functioning, harnessing the cereal root microbiota remains a significant challenge due to interacting and synergistic effects between root traits, soil properties, agricultural practices, and drought-related features. A better mechanistic understanding of root-soil-microbiota associations could lead to the development of novel strategies to improve cereal production under drought. In this review, we discuss the root-soil-microbiota interactions for improving the soil environment and host fitness under drought and suggest a roadmap for harnessing the benefits of these interactions for drought-resilient cereals. These methods include conservative trait-based approaches for the selection and breeding of plant genetic resources and manipulation of the soil environments.

中文翻译：

---

利用根-土壤-微生物群的相互作用培育抗旱谷物

谷物植物与土壤环境中相关的微生物组形成复杂的网络。一个复杂的系统，包括土壤特性和宿主性状的众多参数的变化，塑造了干旱条件下谷物微生物群的动态。这些多方面的相互作用可以极大地影响土壤中的碳和养分循环，并有可能在干旱条件下提高植物的生长和适应性。尽管人们越来越认识到植物微生物群对农业生态系统功能的重要性，但由于根性状、土壤特性、农业实践和干旱相关特征之间的相互作用和协同效应，利用谷物根微生物群仍然是一项重大挑战。对根-土壤-微生物群关联的更好的机制理解可能会导致开发新的策略来提高干旱条件下的谷物产量。在这篇综述中，我们讨论了根系-土壤-微生物群的相互作用，以改善干旱条件下的土壤环境和宿主适应性，并提出了利用这些相互作用对抗旱谷物带来的好处的路线图。这些方法包括基于性状的保守方法，用于植物遗传资源的选择和育种以及土壤环境的操纵。