Adapting to arid conditions: the interplay of plant roots, microbial communities, and exudates in the face of drought challenges

Hassan Etesami, Yinglong Chen

Research output: Chapter in Book/Conference paperChapterpeer-review

Abstract

Global ecosystems are confronting formidable challenges stemming from climate change, environmental pollution, and intensive farming practices. Among these hurdles, recurrent and severe water-deficit stress stands out as a significant threat to plants in both natural habitats and managed agricultural settings. Roots, together with the intricate microenvironment of the rhizosphere, wield considerable influence over crop responses to water deficit, thereby shaping overall ecosystem health and resilience. In the realm of water scarcity challenges, crop root systems assume a central role in shaping the rhizosphere. Root exudates, encompassing organic acids, sugars, and phenolic compounds, emerge as pivotal influencers, sculpting microbial communities and serving as vital nutrient sources. The dynamic interplay among these components under drought stress profoundly alters the composition and structure of rhizosphere microbial communities. Additionally, the plant’s tailored responses contribute to the selective recruitment of beneficial microorganisms, facilitated by root-derived signals. This chapter delves into the intricate web of interactions within the rhizosphere, offering invaluable insights into how these responses resonate through plant-microbe relationships and impact ecosystem functioning in the challenging context of drought stress.

Original languageEnglish
Title of host publicationSustainable Agriculture under Drought Stress
Subtitle of host publicationIntegrated Soil, Water and Nutrient Management
EditorsHossan Etesami, Yinglong Chen
PublisherAcademic Press
Chapter28
Pages471-487
Number of pages17
Edition1
ISBN (Electronic) 9780443239571
ISBN (Print)9780443239564
DOIs
Publication statusPublished - 25 Oct 2024

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