草地学报

›› 2013, Vol. 21 ›› Issue (4): 816-820.DOI: 10.11733/j.issn.1007-0435.2013.04.028

• 研究简报 • 上一篇    下一篇

中药接骨草光合生理特性研究

董磊磊, 黎云祥, 权秋梅, 范曾丽   

  1. 西华师范大学生命科学学院 西南野生动植物资源保护教育部重点实验室, 四川 南充 637009
  • 收稿日期:2013-01-30 修回日期:2013-04-10 出版日期:2013-08-15 发布日期:2013-08-14
  • 通讯作者: 范曾丽
  • 作者简介:董磊磊(1986- ),男,河南信阳人,硕士研究生,研究方向为植物生殖生态学,E-mail: iailife@hotmail.com
  • 基金资助:
    四川省教育厅自然科学青年项目(11ZB026);重点实验室开放基金项目(XNYB09-04);西华师范大学科研启动项目(11B016)资助

Photosynthetic Characteristics of Traditional Chinese Medicine Sambucus chinensis Lind.

DONG Lei-lei, LI Yun-xiang, QUAN Qiu-mei, FAN Zeng-li   

  1. Key Laboratory of Southwest China Wildlife Resources Conservation, China West Normal University, Nanchong, Sichuan Province 637009, China
  • Received:2013-01-30 Revised:2013-04-10 Online:2013-08-15 Published:2013-08-14

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摘要： 以野生接骨草(Sambucus chinensis Lind.)为研究对象,用便携式光合仪测定其光响应曲线和CO2响应曲线,同时测得了光合作用其他参数,旨在加深对接骨草光合特性和生理特性的认识,为其高产栽培和管理提供依据。结果表明:接骨草的叶片光饱和点(LSP)为308.97 μmol·m-2·s-1,光补偿点(LCP)为7.94 μmol·m-2·s-1,最大净光合速率(Pmax)为10.24 μmol·m-2·s-1,暗呼吸速率(Rd)为-0.27 μmol CO2·m-2·s-1,表观量子效率(AQY)为0.03,说明接骨草属喜阴性植物,能较好地利用弱光进行光合作用;CO2补偿点为55.63 μmol·mol-1,CO2饱和点为822.59 μmol·mol-1,羧化效率为0.04,表现出较大光合作用潜力和较广的生存适应能力。

关键词: 接骨草, 光响应曲线, CO2响应曲线

Abstract: Both light and CO2 response curves of wild Sambucus chinensis Lind. were measured with a portable photosynthesis system, and the other parameters of photosynthesis were also measured at the same time. These were designed to deepen the understanding of S. chinensis photosynthetic and physiological characteristics, and to provide the basis for its high-yield cultivation and management. Results showed that the light saturation point (LSP) was 308.97 μmol·m-2·s-1, light compensation point (LCP) was 7.94 μmol·m-2·s-1, maximum net photosynthetic rate (Pmax) was 10.24 μmol·m-2·s-1, dark respiration rate (Rd) was-0.27 μmol CO2·m-2·s-1, apparent quantum efficiency (AQY) was 0.03, which meant that S. chinensis was a shade plant and could use low light for photosynthesis. CO2 compensation point was 55.63 μmol·mol-1, CO2 saturation point was 822.59 μmol·mol-1, and carboxylation efficiency was 0.04, which showed greater photosynthesis potential and survival adaptability.

Key words: Sambucus chinensis, Light response curve, CO2 response curve

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