[1]梁彦涛,陈玲玲,徐太海,等.香鳞毛蕨叶片光合作用日变化特征[J].北方园艺,2018,42(15):164-169.[doi:10.11937/bfyy.20180813]
　LIANG Yantao,CHEN Lingling,XU Taihai,et al.Diurnal Variation of Photosynthesis in Leaves of Dryopteris fragrans L.Schott[J].Northern Horticulture,2018,42(15):164-169.[doi:10.11937/bfyy.20180813]
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香鳞毛蕨叶片光合作用日变化特征

《北方园艺》[ISSN:1001-0009/CN:23-1247/S] 卷: 第42卷 期数: 2018年15 页码: 164-169 栏目: 出版日期: 2018-06-15
Title:
Diurnal Variation of Photosynthesis in Leaves of Dryopteris fragrans L.Schott
作者:
梁彦涛1; 陈玲玲2; 徐太海1; 张国发1; 赵晓菊1; 常缨2
（1.大庆师范学院 生物工程学院，黑龙江 大庆 163712；2.东北农业大学 生命科学学院，黑龙江 哈尔滨 150030）
Author(s):
LIANG Yantao1; CHEN Lingling2; XU Taihai1; ZHANG Guofa1; ZHAO Xiaoju1; CHANG Ying2
(1.Life Science Department，Daqing Normal Univcrsity,Daqing,Heilongjiang 163712;2.College of Life Scicnces，Northeast Agricultural University,Harbin,Heilongjiang 150030)
关键词:
香鳞毛蕨; 光合作用; 日变化
Keywords:
Dryopteris fragrans; photosynthesis; diurnal variation
DOI:
10.11937/bfyy.20180813
文献标志码:
A
摘要:
以香鳞毛蕨为试材，采用LCi便携式光合仪进行野外检测，研究了野生香鳞毛蕨光合作用日进程和光响应。结果表明：在自然条件下，夏季晴天香鳞毛蕨叶片净光合速率（Pn）日进程曲线为单峰型，中午光合效率较高，最高达3.09 μmol·m-2·s-1，随后明显降低。表明香鳞毛蕨对午间强光、高温的有一定的耐受能力，但气孔的关闭和叶肉细胞光合活性也受环境因子一定程度的影响，强光下光抑制的发生是引起香鳞毛蕨叶光合效率午后明显降低的重要原因。分析结果显示香鳞毛蕨的Pn与环境光合有效辐射（PARe）相关系数为0.979，与气温（Ta）直接通径系数为1.926，说明PARe和Ta是直接影响香鳞毛蕨叶片净光合速率日变化的主要因子。
Abstract:
Dryopteris fragrans was used as test material,the photosynthesis process and light response of wild Dryopteris fragrans L.Schott were studied by LCi portable photosynthesis apparatus.The results showed that under natural conditions，the curve of net photosynthetic rate of Dryopteris fragrans leaves（Pn） in sunny days in summer was of single peak type;the photosynthetic efficiency was higher at noon,it was up to 3.09 μmol·m-2·s-1,and then decreased significantly.It suggested that Dryopteris fragrans was resistant to intense light and high-temperature.However,the closure of stomata and photosynthetic activity of mesophyll cells were influenced by environmental factors.Photoinhibition induced by intense light was the main reason for the significantly decreased photosynthetic efficiency of Dryopteris fragrans leaf after noon.It showed that the correlation coefficient of Pn and environmental photosynthetic effective radiation (PARe) was 0.979,and the direct path coefficient of air temperature (Ta) was 1.926,indicating that PARe and Ta were the main factors affecting the diurnal change of net photosynthetic rate of the leaves of Dryopteris fragrans.

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备注/Memo

第一作者简介：梁彦涛（1980-），男，博士，讲师，研究方向为资源植物学与植物生态学。E-mail：liangyantao1980@sina.com.责任作者：常缨（1970-），女，教授，博士生导师，研究方向为植物资源学和植物分子生物学。E-mail：yingchang1970@yahoo.com.基金项目：黑龙江省青年科学基金资助项目(QC2015042)；大庆师范学院博士科研启动基金资助项目(15ZR04)。收稿日期：2018-04-18

更新日期/Last Update: 2018-09-13