Ethylene-Triggered Rice Root System Architecture Adaptation Response to Soil Compaction

Yuxiang Li, Bingkun Ge, Chunxia Yan, Zhi Qi, Rongfeng Huang and Hua Qin ()
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Yuxiang Li: Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Bingkun Ge: Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Chunxia Yan: Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Science, Inner Mongolia University, Hohhot 010021, China
Zhi Qi: Key Laboratory of Forage and Endemic Crop Biology, Ministry of Education, School of Life Science, Inner Mongolia University, Hohhot 010021, China
Rongfeng Huang: Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
Hua Qin: Biotechnology Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China

Agriculture, 2025, vol. 15, issue 19, 1-17

Abstract: Soil compaction is a major constraint on global agriculture productivity. It disrupts soil structure, reduces soil porosity and fertility, and increases mechanical impedance, thereby restricting root growth and crop yield. Recent studies on rice ( Oryza sativa ) reveal that the phytohormone ethylene serves as a primary signal and functions as a hub in orchestrating root response to soil compaction. Mechanical impedance promotes ethylene biosynthesis and compacted soil impedes ethylene diffusion, resulting in ethylene accumulation in root tissues and triggering a complex hormonal crosstalk network to orchestrate root system architectural modification to facilitate plant adaptation to compacted soil. This review summarizes the recent advances on rice root adaptation response to compacted soil and emphasizes the regulatory network triggered by ethylene, which will improve our understanding of the role of ethylene in root growth and development and provide a pathway for breeders to optimize crop performance under specific agronomic conditions.

Keywords: soil compaction; root; ethylene; hormonal crosstalk; rice (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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