Chlorophyll Content and Photosynthetic Efficiency of Thuidium kanedae at Different Altitudes

doi:10.3969/j.issn.1009-7791.2021.04.002

Subtropical Plant Science ›› 2021, Vol. 50 ›› Issue (04): 251-256.DOI: 10.3969/j.issn.1009-7791.2021.04.002

• Plant physiology and biochemistry • Previous Articles Next Articles

Chlorophyll Content and Photosynthetic Efficiency of Thuidium kanedae at Different Altitudes

TANG Lu-yan1, CHEN Ze-yu2, DAI Zun3, YAO Xue3, ZHUANG Li-jie3, ZHU Mao-jie3, PENG Tao1*, WANG Jian3

(1.School of Life Sciences, Guizhou Normal University, Guiyang 550025, Guizhou China; 2.Hangzhou No.2 High School Qianjiang, Hangzhou 311215, Zhejiang China; 3.School of Life Science, East China Normal University, Shanghai 200241,China)

Received:2021-07-22 Revised:2021-08-23 Online:2021-08-30 Published:2021-08-30
Contact: PENG Tao

不同海拔短肋羽藓叶绿素含量与光合效率研究

唐录艳1 ，陈泽宇2，戴尊3，姚雪3，庄李婕3，朱毛洁3，彭涛1*，王健3

(1.贵州师范大学生命科学学院，贵州贵阳 550025；2.杭州第二中学钱江学校，浙江杭州 311215；3.华东师范大学生命科学学院，上海 200241)

通讯作者: 彭涛
基金资助:
国家自然科学基金(31770371、32070228)

Abstract

Abstract: Using Thuidium kanedae as the test material, which were collected at different altitudes from 1500 m to 3100 m of Baihualing, Gaoligong Mountain, Yunnan province, the chlorophyll content and actual photosynthetic quantum yield (YⅡ) were compared and the variation characteristics of photosynthetic characteristics were studied. The results showed that Y(Ⅱ) was negatively correlated with the content of total chlorophyll, chlorophyll a, chlorophyll b, and the ratio of chlorophyll a/b. In addition, the trends of the total chlorophyll content, chlorophyll a content and chlorophyll b content all showed a unimodal distribution pattern, which increased first and then decreased with the increase of altitude. However, with the further increase of altitude, the change of total chlorophyll content and chlorophyll a content was not obvious, while the chlorophyll b showed an obvious upward trend. The ratio of chlorophyll a/b showed a unimodal distribution pattern at low altitude, and then decreased slowly with the increase of altitude. The Y(Ⅱ) showed an increasing trend with the increase of altitude as a whole, and showed a sharp upward trend at high altitude. The results of this study will provide references for revealing the physiological mechanisms of bryophytes adapting to the ecological environment under different altitude gradients.

Key words: altitude, Thuidium kanedae, chlorophyll, photosynthetic efficiency

摘要： 以云南高黎贡山百花岭不同海拔梯度(1500～3100 m)的短肋羽藓(Thuidium kanedae)为材料，通过测定其叶绿素含量和实际光合量子产量，研究其光合特性随海拔梯度变化的规律。结果表明，短肋羽藓的实际光合量子产量Y(Ⅱ)与叶绿素总量、叶绿素a、叶绿素b含量及叶绿素a/b比值之间都呈负相关关系。随着海拔升高，其叶绿素总含量、叶绿素a及叶绿素b含量都呈先升高而后下降的“单峰”分布模式，但随着海拔进一步升高，叶绿素总含量及叶绿素a含量变化不明显，而叶绿素b含量呈现明显上升趋势。叶绿素a/b比值随着海拔升高先呈现“单峰”分布模式，然后随着海拔继续升高呈现缓慢下降的趋势。实际光合量子产量Y(Ⅱ)整体表现出随海拔升高而增加的趋势，并在高海拔处出现急剧上升的趋势。本研究为揭示苔藓植物在不同海拔梯度下适应生态环境的生理机制提供参考。

关键词: 海拔梯度, 短肋羽藓, 叶绿素, 光合效率

CLC Number:

Q945

TANG Lu-yan,. Chlorophyll Content and Photosynthetic Efficiency of Thuidium kanedae at Different Altitudes[J]. Subtropical Plant Science, 2021, 50(04): 251-256.

唐录艳，陈泽宇，戴尊，姚雪，庄李婕，朱毛洁，彭涛，王健. 不同海拔短肋羽藓叶绿素含量与光合效率研究[J]. 亚热带植物科学, 2021, 50(04): 251-256.

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Chlorophyll Content and Photosynthetic Efficiency of Thuidium kanedae at Different Altitudes

不同海拔短肋羽藓叶绿素含量与光合效率研究

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