Changes of Photosynthesis and Physiological Index in Vetiveria zizanioides under Heat and Drought Stress

LIU Yan; HUANG Qiao-qiao; MA Bo-ying; XU Li-gen

Volume 19 Issue 5

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Changes of Photosynthesis and Physiological Index in Vetiveria zizanioides under Heat and Drought Stress

1.
State Key Laboratory of Plant Physiology and Biochemistry,College of Life Sciences,Zhejiang University,Hangzhou 310058,Zhejiang,China
2.
Department of Biology,Zhejiang Education Institute,Hangzhou 310012,Zhejiang,China

Received Date: 2006-01-19

Abstract

This experiment used gramineous C4 plant vetiver,Vetiveria zizanioides as material to study the changes of photosynthetic characters and physiological indices under constant heat and drought stress.The results suggested that under the whole stress period,all the relative soil water content、the relative leaf water content and the chlorophyllcontent showed decreasing tendencies, MDA content and dissociated proline content showed increasing tendencies,and the enzyme activity of SOD,POD in peroxide enzyme system increased at first and then decreased.Net photosynthetic rate(Pn) of vetiver's leaf and intercellular CO2 concentration(Ci) decreased notably in the early period of heat and drought stress.Then notable decreases of PSII max photochemistry quanta output (Fv/Fm),PSII effective photochemistry quanta output(Fv'/Fm'),photo-chemical quenching(qP),electron transport rate(ETR) and non photo-chemical quenching(qN) were observed as the extent of stress increased.This suggested that the decrease of photosynthetic rate in the early period of heat and drought stress was caused by the closure of stoma,and the changes of indices in the later period of heat and drought stress was caused by the damage of PSII in leaves.
- Vetiveria zizanioides,
- heat and drought stress,
- photosynthesis,
- physiology index

References

[1]	徐礼煜. 香根草研究与展望
[M]. 北京: 中国农业科技出版社,1998: 118～130
[M]. 香港: 亚太国际出版有限公司, 2003: 1～2
[4]	徐礼煜, 方长久, 万明,等. 香根草系统及其在中国的研究与应用
[5]	夏汉平, 敖惠修, 刘世忠. 香根草生态工程———实现可持续发展的生物技术
[J]. 生态学杂志, 1998, 17 (6) : 44～50
[J]. App lied Geochemistry, 2004, 19 (10) : 1553～1565
[8]	Chen Y, Shen Z, Li X. The use of vetiver grass (Vetiveria zizanioides) in the phytoremediation of soils contaminated with heavymetals
[9]	程洪. 香根草在我国的应用及研究综述
[J]. 水土保持通报,1998, 18 (3) : 77～81
[J]. 四川草原, 2005 (3) : 28～30
[12]	刘金祥,王铭铭,肖生鸿,等. 干旱胁迫对香根草生长及光合生理主要特征的影响
[13]	刘金祥,谭杏婵,刘家琼. 高温胁迫对香根草含水量、膜透性、脯氨酸和叶绿素含量的影响
[J]. 草原与草坪, 2005 (6) : 59～61
[15]	MaffeiM, Scannerini S, Berta G, et al. Photosynthetic enzyme activities in Vetiveria zizanioides cultivated in temperate climates
[J].Biochemical Systematics and Ecology, 1995, 23 (6) : 27～32
[M]. 北京: 中国农业出版社,2000: 11～12, 110～113
[18]	邹琦. 植物生理学实验指导
[J]. 中国环境科学, 2000, 20 (6) : 491～494
[20]	徐建民,黄昌勇, 安曼, 等. 磺酰脲类除草剂对土壤质量生物学指标的影响
[M]. 成都: 成都科技大学出版社, 1999: 83～87
[22]	蒋德安, 朱诚. 植物生理学实验指导
[23]	Genty B, Briantais J M, Baker N R. The relationship betweenquantum yield of photosynthetic electron transport and quenching ofchlorophyll fluorescence
[J]. Biochem Biophys Acta, 1989, 900:87～92
[M]. 上海: 上海科技出版社, 1985: 303, 305, 314
[26]	上海植物生理学会. 植物生理学实验手册
[J]. Physiol, Plant,1996, 98: 253～264
[28]	Demmig-AdamsB, AdamsW W, BarkerD H, et al. Using chlorophyll fluorescence to assess the fraction of absorbed light allocated tothermal dissipation to of excess excitation
[29]	BilgerW, Bjorkman O. Role of the xanthophylls cycle, fluorescence and photosynthesis in Hedera canariensis
[J]. PhotosynthRes, 1990, 25: 173～185
[J]. Planta, 1991,184: 538～544
[32]	Ogren E. Prediction of photoinhibition of photosynthesis from measurements of fluorescence quenching components
[33]	周瑞莲, 王海鸥, 赵哈林. 不同类型沙地植物保护酶系统对干旱、高温胁迫的响应
[J]. 中国沙漠, 1999, 19 (专刊) : 49～54
[J]. 作物学报, 1997, 23 (3) : 370～375
[36]	许振柱,于振文,董庆裕, 等. 水分胁迫对冬小麦旗叶细胞质膜及叶肉细胞超微结构的影响
[J]. 土壤通报, 2004, 35 (3) : 276～278
[38]	倪郁,郭彦军,吕俊,等. 水分胁迫下豆科牧草的生理生化变化
[J]. Planta, 1991, 183: 178～184
[40]	Cornic G, Briantais JM. Partitioning of photosynthetic electron flowbetween CO² and O² reduction in a C₃ leaf (Phaseolus vulgaris L.)at different CO² concentrations and during drought stress
[41]	关义新,戴俊英,林艳. 水分胁迫下植物叶片光合的气孔和非气孔限制
[J]. 植物生理学通讯, 1995, 31 (4) : 293～297
[43]	刘琴,孙辉,何道文. 干旱和高温对植物胁迫效应的研究进展
[J]. 西华师范大学学报, 2005, 26 (4) : 364～368

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Changes of Photosynthesis and Physiological Index in Vetiveria zizanioides under Heat and Drought Stress

1. State Key Laboratory of Plant Physiology and Biochemistry,College of Life Sciences,Zhejiang University,Hangzhou 310058,Zhejiang,China

2. Department of Biology,Zhejiang Education Institute,Hangzhou 310012,Zhejiang,China

Received Date: 2006-01-19

Abstract: This experiment used gramineous C4 plant vetiver,Vetiveria zizanioides as material to study the changes of photosynthetic characters and physiological indices under constant heat and drought stress.The results suggested that under the whole stress period,all the relative soil water content、the relative leaf water content and the chlorophyllcontent showed decreasing tendencies, MDA content and dissociated proline content showed increasing tendencies,and the enzyme activity of SOD,POD in peroxide enzyme system increased at first and then decreased.Net photosynthetic rate(Pn) of vetiver's leaf and intercellular CO2 concentration(Ci) decreased notably in the early period of heat and drought stress.Then notable decreases of PSII max photochemistry quanta output (Fv/Fm),PSII effective photochemistry quanta output(Fv'/Fm'),photo-chemical quenching(qP),electron transport rate(ETR) and non photo-chemical quenching(qN) were observed as the extent of stress increased.This suggested that the decrease of photosynthetic rate in the early period of heat and drought stress was caused by the closure of stoma,and the changes of indices in the later period of heat and drought stress was caused by the damage of PSII in leaves.

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Reference (44)

[1]	徐礼煜. 香根草研究与展望
[2]	[M]. 北京: 中国农业科技出版社,1998: 118～130
[3]	[M]. 香港: 亚太国际出版有限公司, 2003: 1～2
[4]	徐礼煜, 方长久, 万明,等. 香根草系统及其在中国的研究与应用
[5]	夏汉平, 敖惠修, 刘世忠. 香根草生态工程———实现可持续发展的生物技术
[6]	[J]. 生态学杂志, 1998, 17 (6) : 44～50
[7]	[J]. App lied Geochemistry, 2004, 19 (10) : 1553～1565
[8]	Chen Y, Shen Z, Li X. The use of vetiver grass (Vetiveria zizanioides) in the phytoremediation of soils contaminated with heavymetals
[9]	程洪. 香根草在我国的应用及研究综述
[10]	[J]. 水土保持通报,1998, 18 (3) : 77～81
[11]	[J]. 四川草原, 2005 (3) : 28～30
[12]	刘金祥,王铭铭,肖生鸿,等. 干旱胁迫对香根草生长及光合生理主要特征的影响
[13]	刘金祥,谭杏婵,刘家琼. 高温胁迫对香根草含水量、膜透性、脯氨酸和叶绿素含量的影响
[14]	[J]. 草原与草坪, 2005 (6) : 59～61
[15]	MaffeiM, Scannerini S, Berta G, et al. Photosynthetic enzyme activities in Vetiveria zizanioides cultivated in temperate climates
[16]	[J].Biochemical Systematics and Ecology, 1995, 23 (6) : 27～32
[17]	[M]. 北京: 中国农业出版社,2000: 11～12, 110～113
[18]	邹琦. 植物生理学实验指导
[19]	[J]. 中国环境科学, 2000, 20 (6) : 491～494
[20]	徐建民,黄昌勇, 安曼, 等. 磺酰脲类除草剂对土壤质量生物学指标的影响
[21]	[M]. 成都: 成都科技大学出版社, 1999: 83～87
[22]	蒋德安, 朱诚. 植物生理学实验指导
[23]	Genty B, Briantais J M, Baker N R. The relationship betweenquantum yield of photosynthetic electron transport and quenching ofchlorophyll fluorescence
[24]	[J]. Biochem Biophys Acta, 1989, 900:87～92
[25]	[M]. 上海: 上海科技出版社, 1985: 303, 305, 314
[26]	上海植物生理学会. 植物生理学实验手册
[27]	[J]. Physiol, Plant,1996, 98: 253～264
[28]	Demmig-AdamsB, AdamsW W, BarkerD H, et al. Using chlorophyll fluorescence to assess the fraction of absorbed light allocated tothermal dissipation to of excess excitation
[29]	BilgerW, Bjorkman O. Role of the xanthophylls cycle, fluorescence and photosynthesis in Hedera canariensis
[30]	[J]. PhotosynthRes, 1990, 25: 173～185
[31]	[J]. Planta, 1991,184: 538～544
[32]	Ogren E. Prediction of photoinhibition of photosynthesis from measurements of fluorescence quenching components
[33]	周瑞莲, 王海鸥, 赵哈林. 不同类型沙地植物保护酶系统对干旱、高温胁迫的响应
[34]	[J]. 中国沙漠, 1999, 19 (专刊) : 49～54
[35]	[J]. 作物学报, 1997, 23 (3) : 370～375
[36]	许振柱,于振文,董庆裕, 等. 水分胁迫对冬小麦旗叶细胞质膜及叶肉细胞超微结构的影响
[37]	[J]. 土壤通报, 2004, 35 (3) : 276～278
[38]	倪郁,郭彦军,吕俊,等. 水分胁迫下豆科牧草的生理生化变化
[39]	[J]. Planta, 1991, 183: 178～184
[40]	Cornic G, Briantais JM. Partitioning of photosynthetic electron flowbetween CO² and O² reduction in a C₃ leaf (Phaseolus vulgaris L.)at different CO² concentrations and during drought stress
[41]	关义新,戴俊英,林艳. 水分胁迫下植物叶片光合的气孔和非气孔限制
[42]	[J]. 植物生理学通讯, 1995, 31 (4) : 293～297
[43]	刘琴,孙辉,何道文. 干旱和高温对植物胁迫效应的研究进展
[44]	[J]. 西华师范大学学报, 2005, 26 (4) : 364～368

Changes of Photosynthesis and Physiological Index in Vetiveria zizanioides under Heat and Drought Stress

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通讯作者: 陈斌, bchen63@163.com

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Changes of Photosynthesis and Physiological Index in Vetiveria zizanioides under Heat and Drought Stress

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