Characteristics of gas exchange and chlorophyll fluorescence in red and green leaves of Begonia semperflorens

被引：15

作者：

Zhang, K. M. ^{[1
]}

Wang, X. M. ^{[1
]}

Cui, J. X. ^{[1
]}

Ogweno, J. O. ^{[1
]}

Shi, K. ^{[1
]}

Zhou, Y. H. ^{[1
]}

Yu, J. Q. ^{[1
,2
]}

机构：

[1] Zhejiang Univ, Dept Hort, Hangzhou 310029, Zhejiang, Peoples R China

[2] Agr Minist China, Key Lab Hort Plants Growth Dev & Qual Improvement, Hangzhou 310029, Zhejiang, Peoples R China

来源：

BIOLOGIA PLANTARUM | 2011年 / 55卷 / 02期

关键词：

anthocyanins; net photosynthetic rate; non-photochemical quenching; photochemical quenching; Rubisco; ANTHOCYANIN ACCUMULATION; LEAF PHOTOSYNTHESIS; TEMPERATURE STRESS; LIGHT; CONDUCTANCE; TOLERANCE; SEEDLINGS; JUVENILE; CO2;

D O I：

10.1007/s10535-011-0055-1

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

To determine the effects of leaf colour on gas exchange and chlorophyll fluorescence, two genotypes of Begonia semperflorens with green leaves or red leaves were compared. The red leaves showed a high accumulation of anthocyanins and high absorbance at 282 and 537 nm while the green leaves exhibited a higher net photosynthetic rate and lower thermal dissipation of light energy. It seems likely that anthocyanins in the vacuoles restricted the absorption of green light to the chloroplasts, leading to a decrease in the efficiency of excitation capture by open PS 2 centres, photochemical quenching and CO2 assimilation.

引用

页码：361 / 364

页数：4

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