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Progress in Hydrotropism of Plant Roots
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Yuxiao LIU1, Shiwen DAI1, Xi WANG2, Songyu PEI1, Xuexiao ZOU1, **, Fang YUAN1, **
Chinese Journal of Tropical Crops | 2025, 46(8) : 1931 - 1942
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Chinese Journal of Tropical Crops | 2025, 46(8): 1931-1942
• Plant Cultivation, Physiology & Biochemistry •
Progress in Hydrotropism of Plant Roots
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Yuxiao LIU1, Shiwen DAI1, Xi WANG2, Songyu PEI1, Xuexiao ZOU1, **, Fang YUAN1, **
Affiliations
  • 1.College of Horticulture, Hunan Agriculture University, Changsha, Hunan 410125, China
  • 2.College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
Published: 2025-08-25 doi: 10.3969/j.issn.1000-2561.2025.08.016
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The biological property by which plant root tips perceive moisture gradients and bend toward regions of higher water potential is termed hydrotropism. As a critical adaptive strategy for plants to respond to dynamic water environments, hydrotropism drives roots to actively navigate toward water sources, optimizing water acquisition. The regulatory mechanism of hydrotropism involves the coordinated mediation of second messengers (reactive oxygen species and calcium ions), phytohormones (abscisic acid, auxin and cytokinin), and key regulators such as MIZ1. Plants achieve adaptive responses to water stress through integrating processes of moisture gradient perception, signal transduction, and asymmetric hormone distribution. However, significant differences exist in hydrotropic regulatory mechanisms among species, and in the interactions with other tropisms (gravitropism, phototropism, and thigmotropism). Elucidating the core regulatory factors of hydrotropism and the interaction patterns of the signaling networks would provide a theoretical basis for genetic improvement of water-use efficiency in crops and sustainable agricultural development.

roots  /  hydrotropism  /  abiotic stress  /  calcium signal  /  reactive oxygen species  /  abscisic acid  /  auxin  /  cytokinin
Yuxiao LIU, Shiwen DAI, Xi WANG, Songyu PEI, Xuexiao ZOU, Fang YUAN. Progress in Hydrotropism of Plant Roots[J]. Chinese Journal of Tropical Crops, 2025 , 46 (8) : 1931 -1942 . DOI: 10.3969/j.issn.1000-2561.2025.08.016
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Year 2025 volume 46 Issue 8
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Article Info
doi: 10.3969/j.issn.1000-2561.2025.08.016
  • Receive Date：2025-03-02
  • Online Date：2026-06-24
  • Published：2025-08-25
Article Data
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  • Received：2025-03-02
  • Accepted：2025-04-11
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Affiliations
    1.College of Horticulture, Hunan Agriculture University, Changsha, Hunan 410125, China
    2.College of Life Sciences, Zhejiang University, Hangzhou, Zhejiang 310058, China
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Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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