Bulletin of Botanical Research ›› 2026, Vol. 46 ›› Issue (4): 584-598.doi: 10.7525/j.issn.1673-5102.2026.04.002

• Review Article • Previous Articles     Next Articles

Advances in Response Mechanisms and Regulatory Strategies of Cinnamomum camphora to Temperature Stress

Chao KANG1, Qiuyu YANG1, Meng DUAN1, Yafei LI1, Wanxi WANG2(), Qiangsheng WU2()   

  1. 1.Liantou(Hubei Jingzhou High-Tech Zone) Industrial Investment Co. ,Ltd. ,Jingzhou 434025
    2.College of Horticulture and Gardening,Yangtze University,Jingzhou 434025
  • Received:2026-03-05 Online:2026-07-20 Published:2026-07-22
  • Contact: Wanxi WANG, Qiangsheng WU E-mail:342701127@qq.com;wuqiangsh@163.com

Abstract:

Temperature stress is a key factor limiting the distribution and growth of Cinnamomum camphora, with fundamentally distinct response mechanisms to high and low temperatures. This review systematically compared the core strategies employed by C. camphora under the two stresses. Under high-temperature stress, the photosynthetic system undergoes metabolic dissipation via enhanced photorespiration; redox regulation is driven by a monoterpene-mediated WRKY-HSF signaling network; and proline exhibits the most rapid response in osmotic adjustment. In contrast, under low-temperature stress, the photosynthetic system depends on non-photochemical quenching and cyclic electron flow for physical protection; molecular regulation is centered on the Ca²⁺-ethylene-ERF/CBF cascade; and soluble sugar accumulation dominates osmotic adjustment. Based on these mechanisms, this review evaluated the effectiveness of current regulatory strategies from three dimensions(physical, chemical, and biotechnological approaches) and identified existing bottlenecks in elucidating monoterpene signaling pathways, deciphering combined stress mechanisms, and development of precise regulation technologies. Future research should focus on integration of multi-omics data to resolve molecular networks, construction of predictive models for combined stresses, breakthroughs in genetic transformation systems, and assessment of the ecological and economic feasibility of regulatory strategies. These advances will facilitate the shift of stress-resilient cultivation of C. camphora from passive protection to active, mechanism-driven precise regulation.

Key words: Cinnamomum camphora, temperature stress, photosynthesis, antioxidant system, CBF/DREB1, monoterpenes

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