植物研究 ›› 2026, Vol. 46 ›› Issue (4): 584-598.doi: 10.7525/j.issn.1673-5102.2026.04.002

• 综述文章 • 上一篇    下一篇

香樟对温度胁迫的响应机制及调控策略研究进展

康超1, 杨秋雨1, 段朦1, 李亚飞1, 王万喜2(), 吴强盛2()   

  1. 1.联投(湖北荆州高新区)产业投资有限公司,荆州 434025
    2.长江大学园艺园林学院,荆州 434025
  • 收稿日期:2026-03-05 出版日期:2026-07-20 发布日期:2026-07-22
  • 通讯作者: 王万喜,吴强盛 E-mail:342701127@qq.com;wuqiangsh@163.com
  • 作者简介:康超(1987—),男,硕士,主要从事环境工程与绿化研究。
  • 基金资助:
    联投(湖北荆州高新区)产业投资有限公司科技创新专项资助项目(JC-CT-KJCX-2025-001)

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

摘要:

温度胁迫是限制香樟(Cinnamomum camphora)分布与生长的重要因素,其高温与低温响应机制存在本质差异。本文系统比较了香樟应对高温与低温胁迫的核心策略:高温胁迫下,光合系统以光呼吸增强进行代谢性耗散,氧化还原调控以单萜信号为核心,驱动WRKY与HSF转录因子级联网络,渗透调节以脯氨酸响应最为迅速;低温胁迫下,光合系统依赖非光化学淬灭和环式电子流进行物理性保护,分子调控以钙-乙烯-ERF/CBF级联通路为中枢,渗透调节以可溶性糖积累为主导。基于上述机制,本文从物理、化学和生物技术3个维度评估了现有调控策略的有效性,指出当前研究在单萜信号通路解析、多重逆境耦合机制、精准调控技术研发等方面仍存在瓶颈。未来应聚焦多组学整合解析分子网络、构建复合胁迫预测模型、突破遗传转化瓶颈及评估调控策略的生态经济可行性,以推动香樟抗逆栽培从被动防护向主动的机制驱动型精准调控转变。

关键词: 香樟, 温度胁迫, 光合作用, 抗氧化系统, CBF/DREB1, 单萜

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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