Influence of Dehydration on Characteristics of Chlorophyll Fluorescence of Detached Leaves in Haloxylon ammodendron and Populus euphratica
-
1.
College of Biological Sciences and Biotechnology,Beijing Forestry University,Beijing 100083,China
-
2.
Research Institute of Forest,Environmeat and Ecology Protection,CAF,Beijing 100091,China
-
3.
Group of Trees Cell Biology,Research Institute of Forestry,CAF,Beijing 100091,China
-
Received Date:
2007-10-13
-
Abstract
Haloxylon ammodendron and Populus euphratica are the dominant tree species that prevent desertification in northwest China.The parameters of chlorophyll a fluorescence kinetics were measured with IMAGING-PAM in the leaves of the two tree species during different detached time.The results showed that Fv /Fm、qP and ETR had a slight decrease,however,qN had a significant increase in the initial stage of detached stress.With the extension of detached time,Fv /Fm、qP and ETR of P.euphratica decreased dramatically compared to that of H.ammodendron.At these times,qN of H.ammodendron was also lower then that in the control,but that of P.euphratica was still higher than in the control,which demonstrated that these two desert tree species initiate different mechanism of enhanced non-photochemical energy dissipation.
-
-
References
|
[1]
|
Ottow E A, BrinkerM, Teichmann T, et al. Populus euphratica disp lays apop lastic sodium accumulation, osmotic adjustment by decreases in calcium and soluble carbohydrates, and develop s leaf succulence under salt stress [J]. Plant Physiology, 2005, 139: 1762- 1772 |
|
[2]
|
Sheng Y, ZhengW, Pei K, et al. Genetic variation within and among populations of a dominant desert tree Haloxylon amm odendron(Amaranthaceae) in China[J]. Annal ofBotany, 2005, 96: 245 -252 |
|
[3]
|
Shinozaki K, Yamaguchi - Shinozaki K. Gene exp ression and signaltransduction in water2stress response [J]. Plant Physiology, 1997,115: 327 - 334 |
|
[4]
|
Zhu J K. Plant salt tolerance [J]. Trends in Plant Science, 2001,2: 66 - 71 |
|
[5]
|
PyankovV I, Black jr C C, Artyusheva E G, et al. Features of photosynthesis in Haloxylon species of Chenopodiaceae that are dominantp lants in Central Asia desert[J]. Plant Cell Physiology, 1999, 40:125 - 134 |
|
[6]
|
苏培玺, 严巧娣. C4 荒漠植物梭梭和沙拐枣在不同水分条件下的光合作用特征[J]. 生态学报, 2006, 26 (1) : 75 - 82
|
|
[7]
|
谷瑞升,蒋湘宁. 胡杨细胞和组织结构与其耐盐性关系的研究[J]. 植物学报, 1999, 41 (6) : 576 - 579
|
|
[8]
|
陈少良. 胡杨抗盐性的生理生化基础[M]. 北京: 高等教育出版社, 2004
|
|
[9]
|
赵长明, 魏小平, 尉秋实, 等. 民勤绿洲荒漠过渡带植物白刺和梭梭光合特性[J]. 生态学报, 2005, 25 (8) : 1908 - 1913
|
|
[10]
|
罗青红, 李志军, 伍维模, 等. 胡杨、灰叶胡杨光合及叶绿素荧光特性的比较研究[J]. 西北植物学报, 2006, 26 ( 5 ) : 983- 988
|
|
[11]
|
Gilmore A M, Yamamoto H Y. Zeaxanth in formation and energydependent fluorescence quenching in pea chlorop lasts [J]. PlantPhysiology, 1996, 96: 636 - 643 |
|
[12]
|
Michal K. On the relation between the non-photochemical quenching of chlorophyll fluorescence and photosystem II light harvestingefficiency. A repetitive flash fluorescence induction study[J]. Photosynthesis Research, 2001, 68: 571 - 576 |
|
[13]
|
Goss R, Bǒhme K, Wilhelm C. The xanthophy II cycle of mantoniella squamata violaxanthin into antherxanthin but not to leaxanthin consequences for the mechanism of enhanced non-photochemical energy dissipation[J]. Planta, 1998, 205: 613 - 621 |
|
[14]
|
史胜青, 袁玉欣, 杨敏生, 等. 水分胁迫对4种苗木叶绿素荧光参数的光化学淬灭和非光化学淬灭的影响[J]. 林业科学,2004, 40 (1) : 168 - 173
|
-
-
Proportional views
-
DownLoad: