Formation Mechanisms and Functions of Plant Rhizosheath and Its Application in Rice Production

doi:10.16819/j.1001-7216.2026.250506

Abstract

Abstract: The rhizosheath is a sheath-like complex formed through the adhesion of root exudates and root hairs, especially in the root hair zone, to surrounding soil particles, microorganisms, and organic matter. It serves to protect root tips, enrich and activate rhizosphere nutrients, and enhance plant nutrient uptake. Its formation is influenced by both biological factors (e.g., rhizosphere microorganisms) and abiotic factors (e.g., soil texture, moisture, and nutrient status). In rice production, the rhizosheath holds potential for improving nutrient absorption and use efficiency, enhancing stress adaptation, and optimizing the rhizosphere microenvironment. Therefore, in-depth research on the formation mechanism of the rice rhizosheath and its intrinsic links with nutrient acquisition, environmental responses, and yield formation is of great significance for elucidating its functional role in rice growth and for promoting innovations in genetic improvement and cultivation management.

Key words: rhizosheath, formation mechanism, function and applications, rice

摘要： 植物根鞘是根系(尤其根毛区)表面通过分泌物和根毛的黏附作用，与周围土壤颗粒、微生物及有机质结合形成的鞘状复合体，具有保护根尖、富集和活化根际养分、增强植物养分吸收能力等功能；其建成受生物因素(如根际微生物)和非生物因素(如土壤质地、水分及养分状况)影响，在水稻生产中具有提高养分吸收与利用效率、增强逆境适应能力、改善根际微环境等应用潜力。因此，深入研究水稻根鞘建成机制及其与养分吸收、环境响应以及产量形成的内在关系，对于阐明根鞘在水稻生长中的作用机理、推动水稻遗传改良和栽培管理创新具有十分重要的意义。

关键词: 根鞘, 建成机制, 功能与应用, 水稻

JIA Meijie, CHEN Haotian, ZHONG Xiaohan, WANG Weilu, ZHANG Weiyang. Formation Mechanisms and Functions of Plant Rhizosheath and Its Application in Rice Production[J]. Chinese Journal OF Rice Science, 2026, 40(3): 292-301.

贾梅杰, 陈浩田, 钟笑涵, 王伟露, 张伟杨. 植物根鞘的建成机制与功能及其在水稻生产中的应用[J]. 中国水稻科学, 2026, 40(3): 292-301.

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