Effects of Na2SO4 Stress on Growth and Photosynthetic Physiology of Elaeagnus angustifolia Seedlings

LIU Zheng-xiang; ZHANG Hua-xin; YANG Xiu-yan; LIU Tao; CHEN Jin-hu

Volume 27 Issue 2

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Effects of Na2SO4 Stress on Growth and Photosynthetic Physiology of Elaeagnus angustifolia Seedlings

1.
Research Center of Saline and Alkali Land of State Forestry Administration, Beijing 100091, China
2.
State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
3.
Fengshushan Forestry Center of Jingdezhen City, Jingdezhen 333000, Jiangxi, China

Received Date: 2013-03-16

Abstract

A pot experiment was conducted to investigate the effects of salt stress (0, 60, 120 and 180 mmol·L-1 Na2SO4) on the growth and photosynthetic characteristics of Elaeagnus angustifolia seedlings. The results showed that: (1) the plant growth was significantly inhibited by salt treatment. The tree height, number of branches, specific leaf area, total leaf area, leaf number per plant, and the biomass accumulation of stem, leaf, shoot and whole-plant of Na2SO4-stressed seedlings were all significantly lower than those of the control (no salt-stressed). With the salt concentration elevated, the above-mentioned growth parameters generally exhibited a decreasing trend, while the root-shoot ratio increased significantly from control's 0.153 1 to 180 mmol·L-1 Na2SO4-stressed seedlings' 0.348 7. (2) The photosynthetic capacity decreased by salt stress significantly. The net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 content (Ci) and transpiration rate (Tr) of seedlings treated by 180 mmol·L-1 Na2SO4 were only 71.57%, 30.85%, 67.15% and 51.65% of the corresponding control, while the stomatal limitation value (Ls) and water use efficiency (WUE) of 180 mmol·L-1 Na2SO4-stressed seedlings were 1.91 and 1.38 times that of the control seedlings, respectively. With the salt stress aggravated, the Pn, Gs, Ci and Tr, and Ls and WUE generally exhibited a decreasing, and increasing trend, respectively. The decreased Pn of stressed seedlings was mainly attributed to stomatal restrictions. (3) The various growth parameters of height, total leaf area, leaf number per plant, specific leaf area, stem biomass, leaf biomass and whole-plant biomass accumulation, and photosynthetic parameters of Pn, Gs, Ci and Tr had all extremely significant and negative correlation with salt stress intensity. The total leaf area and leaf number per plant were significantly or extremely significantly correlated with leaf photosynthetic parameters. There was also significant or extremely significant correlation between parameters of growth and photosynthesis and parameters of seedling height and biomass accumulation.
- Elaeagnus angustifolia,
- Na₂SO₄ stress,
- seedling growth,
- photosynthetic physiology

References

[1]	徐恒刚. 中国盐生植被及盐渍化生态治理[M]. 北京:中国农业科学技术出版社,2004
[2]	郗金标,张福锁,田长彦. 新疆盐生植物[M]. 北京:科学出版社,2006
[3]	Munns R, Tester M. Mechanisms of salinity tolerance [J]. Annual Review of Plant Biology, 2008, 59: 651-681
[4]	刘蕾. 新疆土壤盐分的组成和分布特征[J]. 干旱环境监测,2009,23(4):227-229
[5]	王红玲,阿不来提·阿不都热依木,齐曼. Na₂SO₄胁迫下狗牙根K⁺、Na⁺离子分布及其抗盐性的评价[J]. 中国草地,2004,26(5):37-42
[6]	方志红,董宽虎. Na₂SO₄胁迫对碱蒿叶绿素、甜菜红素和O₂^-产生速率的影响[J]. 安徽农学通报,2010,16(9):40-41
[7]	朱建雯,杨文英,哈里旦,等. Na₂SO₄胁迫对鞑靼滨藜氮同化作用的影响[J]. 干旱区研究,1997,14(4):30-33
[8]	师爱华. Na₂SO₄胁盐迫对紫穗槐酶活性的影响[J]. 山西林业科技,2009,38(2):16-18
[9]	李秀霞,齐曼·尤努斯,高桥久光,等. Na₂SO₄胁迫对沙枣光合速率及其它生理指标的影响[J]. 新疆农业科学,2005,42(2):102-106
[10]	Nguyen H, Calvo-Polanco M, Zwiazek J J. Gas exchange and growth responses of ectomycorrhizal Picea mariana, Picea glauca, and Pinus banksiana seedlings to NaCl and Na₂SO₄ [J]. Plant Biology, 2006, 8(5): 646-652
[11]	Pagter M, Bragato C, Malagoli M, et al. Osmotic and ionic effects of NaCl and Na₂SO₄ salinity on Phragmites australis[J]. Aquatic Botany, 2009, 90(1): 43-51
[12]	Tarchoune I, Degl'Innocenti E, Kaddour R, et al. Effects of NaCl or Na₂SO₄ salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.[J]. Acta Physiologiae Plantarum, 2012, 34(2): 607-615
[13]	李利,潘响亮,李宏. 模拟干旱和盐分胁迫对沙枣PSII活力的影响[J]. 西北植物学报,2011,3(4):768-775
[14]	彭立新,周黎君,冯涛,等. 盐胁迫对沙枣幼苗抗氧化酶活性和膜脂过氧化的影响[J]. 天津农学院学报,2009,16(4):1-4
[15]	王柏青,王耀辉. 混合盐碱胁迫对沙枣种子萌发的影响[J]. 东北林业大学学报,2008,36(12):11-12
[16]	齐曼·尤努斯,李阳,木合塔尔,等. NaCl、Na₂SO₄胁迫对新疆大果沙枣种子萌发及生理特性的影响[J]. 新疆农业科学,2006,43(2):136-139
[17]	Grotkopp E, Rejmanek M, Rost T L. Toward a causal explanation of plant invasiveness: seedling growth and life-history strategies of 29 pine (Pinus) species [J]. The American Naturalist, 2002, 159(4): 396-419
[18]	王殿,袁芳,王宝山,等. 能源植物杂交狼尾草对NaCl胁迫的响应及其耐盐阈值[J]. 植物生态学报,2012,36(6):572-577
[19]	蔡海霞,吴福忠,杨万勤. 干旱胁迫对高山柳和沙棘幼苗光合生理特性的影响[J]. 生态学报,2011,31(9):2430-2436
[20]	许大全. 光合作用气孔限制分析中的一些问题[J]. 植物生理学通讯,1997,33(4):241-244
[21]	Parida A K, Das A B. Salt tolerance and salinity effects on plants: a review [J]. Ecotoxicology and Environmental Safety, 2005, 60(3): 324-349
[22]	Jamil M, Rehman S, Lee K J, et al. Salinity reduced growth, PSII photochemistry and chlorophyll content in Radish [J]. Scientia Agricola, 2007, 64(2): 111-118
[23]	Debez A, Saadaoui D, Ramani B, et al. Leaf H⁺-ATPase activity and photosynthetic capacity of Cakile maritima under increasing salinity [J]. Environmental and Experimental Botany, 2006, 57(3): 285-295
[24]	Al-Sobhi O A, Al-Zahrani H S, Al-Ahmadi S B. Effect of salinity on chlorophyll and carbohydrate contents of Calotropis procera seedlings [J]. Scientific Journal of King Faisal University (Basic and Applied Sciences), 2006, 7: 105-114
[25]	Ebrahimi R, Bhatla S C. Effect of sodium chloride levels on growth, water status, uptake, transport, and accumulation pattern of sodium and chloride ions on young sunflower plants [J]. Communications in Soil Science and Plant Analysis, 2011, 42(7): 415-431
[26]	孟凡娟,庞洪影,王建中,等. NaCl和Na₂SO₄胁迫下两种刺槐叶肉细胞叶绿体超微结构[J]. 生态学报,2011,31(3):734-741
[27]	Garnier E , Shipley B, Roumet C, et al. A standardized protocol for the determination of specific leaf area and leaf dry matter content [J]. Functional Ecology, 2001, 15(5): 688-695
[28]	杨玲,沈海龙,崔晓涛. NaHCO₃胁迫下新西伯利亚银白杨幼苗生长和光合能力变化[J]. 林业科学,2012,48(7):50-55

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Effects of Na2SO4 Stress on Growth and Photosynthetic Physiology of Elaeagnus angustifolia Seedlings

1. Research Center of Saline and Alkali Land of State Forestry Administration, Beijing 100091, China

2. State Key Laboratory of Tree Genetics and Breeding, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China

3. Fengshushan Forestry Center of Jingdezhen City, Jingdezhen 333000, Jiangxi, China

Received Date: 2013-03-16

Abstract: A pot experiment was conducted to investigate the effects of salt stress (0, 60, 120 and 180 mmol·L-1 Na2SO4) on the growth and photosynthetic characteristics of Elaeagnus angustifolia seedlings. The results showed that: (1) the plant growth was significantly inhibited by salt treatment. The tree height, number of branches, specific leaf area, total leaf area, leaf number per plant, and the biomass accumulation of stem, leaf, shoot and whole-plant of Na2SO4-stressed seedlings were all significantly lower than those of the control (no salt-stressed). With the salt concentration elevated, the above-mentioned growth parameters generally exhibited a decreasing trend, while the root-shoot ratio increased significantly from control's 0.153 1 to 180 mmol·L-1 Na2SO4-stressed seedlings' 0.348 7. (2) The photosynthetic capacity decreased by salt stress significantly. The net photosynthetic rate (Pn), stomatal conductance (Gs), intercellular CO2 content (Ci) and transpiration rate (Tr) of seedlings treated by 180 mmol·L-1 Na2SO4 were only 71.57%, 30.85%, 67.15% and 51.65% of the corresponding control, while the stomatal limitation value (Ls) and water use efficiency (WUE) of 180 mmol·L-1 Na2SO4-stressed seedlings were 1.91 and 1.38 times that of the control seedlings, respectively. With the salt stress aggravated, the Pn, Gs, Ci and Tr, and Ls and WUE generally exhibited a decreasing, and increasing trend, respectively. The decreased Pn of stressed seedlings was mainly attributed to stomatal restrictions. (3) The various growth parameters of height, total leaf area, leaf number per plant, specific leaf area, stem biomass, leaf biomass and whole-plant biomass accumulation, and photosynthetic parameters of Pn, Gs, Ci and Tr had all extremely significant and negative correlation with salt stress intensity. The total leaf area and leaf number per plant were significantly or extremely significantly correlated with leaf photosynthetic parameters. There was also significant or extremely significant correlation between parameters of growth and photosynthesis and parameters of seedling height and biomass accumulation.

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Reference (28)

[1]	徐恒刚. 中国盐生植被及盐渍化生态治理[M]. 北京:中国农业科学技术出版社,2004
[2]	郗金标,张福锁,田长彦. 新疆盐生植物[M]. 北京:科学出版社,2006
[3]	Munns R, Tester M. Mechanisms of salinity tolerance [J]. Annual Review of Plant Biology, 2008, 59: 651-681
[4]	刘蕾. 新疆土壤盐分的组成和分布特征[J]. 干旱环境监测,2009,23(4):227-229
[5]	王红玲,阿不来提·阿不都热依木,齐曼. Na₂SO₄胁迫下狗牙根K⁺、Na⁺离子分布及其抗盐性的评价[J]. 中国草地,2004,26(5):37-42
[6]	方志红,董宽虎. Na₂SO₄胁迫对碱蒿叶绿素、甜菜红素和O₂^-产生速率的影响[J]. 安徽农学通报,2010,16(9):40-41
[7]	朱建雯,杨文英,哈里旦,等. Na₂SO₄胁迫对鞑靼滨藜氮同化作用的影响[J]. 干旱区研究,1997,14(4):30-33
[8]	师爱华. Na₂SO₄胁盐迫对紫穗槐酶活性的影响[J]. 山西林业科技,2009,38(2):16-18
[9]	李秀霞,齐曼·尤努斯,高桥久光,等. Na₂SO₄胁迫对沙枣光合速率及其它生理指标的影响[J]. 新疆农业科学,2005,42(2):102-106
[10]	Nguyen H, Calvo-Polanco M, Zwiazek J J. Gas exchange and growth responses of ectomycorrhizal Picea mariana, Picea glauca, and Pinus banksiana seedlings to NaCl and Na₂SO₄ [J]. Plant Biology, 2006, 8(5): 646-652
[11]	Pagter M, Bragato C, Malagoli M, et al. Osmotic and ionic effects of NaCl and Na₂SO₄ salinity on Phragmites australis[J]. Aquatic Botany, 2009, 90(1): 43-51
[12]	Tarchoune I, Degl'Innocenti E, Kaddour R, et al. Effects of NaCl or Na₂SO₄ salinity on plant growth, ion content and photosynthetic activity in Ocimum basilicum L.[J]. Acta Physiologiae Plantarum, 2012, 34(2): 607-615
[13]	李利,潘响亮,李宏. 模拟干旱和盐分胁迫对沙枣PSII活力的影响[J]. 西北植物学报,2011,3(4):768-775
[14]	彭立新,周黎君,冯涛,等. 盐胁迫对沙枣幼苗抗氧化酶活性和膜脂过氧化的影响[J]. 天津农学院学报,2009,16(4):1-4
[15]	王柏青,王耀辉. 混合盐碱胁迫对沙枣种子萌发的影响[J]. 东北林业大学学报,2008,36(12):11-12
[16]	齐曼·尤努斯,李阳,木合塔尔,等. NaCl、Na₂SO₄胁迫对新疆大果沙枣种子萌发及生理特性的影响[J]. 新疆农业科学,2006,43(2):136-139
[17]	Grotkopp E, Rejmanek M, Rost T L. Toward a causal explanation of plant invasiveness: seedling growth and life-history strategies of 29 pine (Pinus) species [J]. The American Naturalist, 2002, 159(4): 396-419
[18]	王殿,袁芳,王宝山,等. 能源植物杂交狼尾草对NaCl胁迫的响应及其耐盐阈值[J]. 植物生态学报,2012,36(6):572-577
[19]	蔡海霞,吴福忠,杨万勤. 干旱胁迫对高山柳和沙棘幼苗光合生理特性的影响[J]. 生态学报,2011,31(9):2430-2436
[20]	许大全. 光合作用气孔限制分析中的一些问题[J]. 植物生理学通讯,1997,33(4):241-244
[21]	Parida A K, Das A B. Salt tolerance and salinity effects on plants: a review [J]. Ecotoxicology and Environmental Safety, 2005, 60(3): 324-349
[22]	Jamil M, Rehman S, Lee K J, et al. Salinity reduced growth, PSII photochemistry and chlorophyll content in Radish [J]. Scientia Agricola, 2007, 64(2): 111-118
[23]	Debez A, Saadaoui D, Ramani B, et al. Leaf H⁺-ATPase activity and photosynthetic capacity of Cakile maritima under increasing salinity [J]. Environmental and Experimental Botany, 2006, 57(3): 285-295
[24]	Al-Sobhi O A, Al-Zahrani H S, Al-Ahmadi S B. Effect of salinity on chlorophyll and carbohydrate contents of Calotropis procera seedlings [J]. Scientific Journal of King Faisal University (Basic and Applied Sciences), 2006, 7: 105-114
[25]	Ebrahimi R, Bhatla S C. Effect of sodium chloride levels on growth, water status, uptake, transport, and accumulation pattern of sodium and chloride ions on young sunflower plants [J]. Communications in Soil Science and Plant Analysis, 2011, 42(7): 415-431
[26]	孟凡娟,庞洪影,王建中,等. NaCl和Na₂SO₄胁迫下两种刺槐叶肉细胞叶绿体超微结构[J]. 生态学报,2011,31(3):734-741
[27]	Garnier E , Shipley B, Roumet C, et al. A standardized protocol for the determination of specific leaf area and leaf dry matter content [J]. Functional Ecology, 2001, 15(5): 688-695
[28]	杨玲,沈海龙,崔晓涛. NaHCO₃胁迫下新西伯利亚银白杨幼苗生长和光合能力变化[J]. 林业科学,2012,48(7):50-55

Effects of Na2SO4 Stress on Growth and Photosynthetic Physiology of Elaeagnus angustifolia Seedlings

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Effects of Na2SO4 Stress on Growth and Photosynthetic Physiology of Elaeagnus angustifolia Seedlings

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