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Research advances in the PHGAPs-ROP signaling module: integrating brassinosteroids and auxin pathways to regulate pavement cell morphogenesis
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Shuning ZHANG1, Xiaoru YI1, Meiyan ZOU1, Deshu LIN2, Jiakai LIAO2, *
Plant Physiology Journal | 2026, 62(7) : 698 - 704
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Plant Physiology Journal | 2026, 62(7): 698-704
• Review •
Research advances in the PHGAPs-ROP signaling module: integrating brassinosteroids and auxin pathways to regulate pavement cell morphogenesis
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Shuning ZHANG1, Xiaoru YI1, Meiyan ZOU1, Deshu LIN2, Jiakai LIAO2, *
Affiliations
  • 1College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
  • 2Basic Forestry and Proteomics Research Center, School of Future Technology and Haixia, Fujian Agriculture and Forestry University, Fuzhou 350002, China
Published: 2026-07-20 doi: 10.13592/j.cnki.ppj.300414
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The specialized plant leaf epidermal cells develop into pavement cells with complex interdigitated jigsaw puzzle-like structures through polarized growth. Their morphogenesis is primarily orchestrated by Rho-related GTPases of plants (ROP) signaling, which integrates signaling mechanism networks such as hormones, cytoskeletal reorganization, and mechanical stress responses. This review systematically elucidates the mechanisms by which brassinosteroids (BRs) and auxin synergizing with PHGAPs-ROP signaling to regulate the morphogenesis of pavement cells. In particular, it characterizes the molecular mechanism through which BR signaling negatively regulates ROP2 activity via PHGAPs. Through identifying PHGAPs as a pivotal node, this review refines the multi-signaling pathway coordinated regulatory model of pavement cells morphogenesis and provides a comprehensive theoretical framework for deciphering crosstalk mechanism between PHGAPs-ROP and various signaling pathways, as well as mechanical signal sensing mechanism.

pavement cells morphogenesis  /  cell polarity  /  plant hormone signal interaction  /  PHGAPs-ROP signal module
张舒宁, 易小茹, 邹美燕, 林德书, 廖家凯. PHGAPs-ROP信号整合油菜素甾醇与生长素调控植物铺板细胞形态建成的研究进展. 植物生理学报, 2026 , 62 (7) : 698 -704 . DOI: 10.13592/j.cnki.ppj.300414
Shuning ZHANG, Xiaoru YI, Meiyan ZOU, Deshu LIN, Jiakai LIAO. Research advances in the PHGAPs-ROP signaling module: integrating brassinosteroids and auxin pathways to regulate pavement cell morphogenesis[J]. Plant Physiology Journal, 2026 , 62 (7) : 698 -704 . DOI: 10.13592/j.cnki.ppj.300414
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Year 2026 volume 62 Issue 7
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Article Info
doi: 10.13592/j.cnki.ppj.300414
  • Receive Date：2026-02-20
  • Online Date：2026-10-15
  • Published：2026-07-20
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  • Received：2026-02-20
  • Revised：2026-06-04
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Affiliations
    1College of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China
    2Basic Forestry and Proteomics Research Center, School of Future Technology and Haixia, Fujian Agriculture and Forestry University, Fuzhou 350002, China

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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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