干旱和复水对崖柏光合特性及水分利用效率的影响

金江群; 郭泉水; 朱莉; 许格希; 刘建锋; 裴顺祥

doi:10.3724/SP.J.1142.2012.60599

干旱和复水对崖柏光合特性及水分利用效率的影响

金江群^1,2,
郭泉水^2, ,,
朱莉^2,3,
许格希^2,4,
刘建锋⁵,
裴顺祥⁶

1.
重庆市药物种植研究所, 重庆 408435
2. 中国林业科学研究院森林生态环境与保护研究所, 国家林业局森林生态环境重点实验室, 北京 100091
3. 河南科技大学农学院, 河南洛阳 471003
4. 北京林业大学省部共建森林培育与保护教育部重点实验室, 北京 100083
5. 中国林业科学研究院林业研究所, 北京 100091
6. 中国林业科学研究院华北林业实验中心, 北京 102300

基金项目: 国家林业局野生动植物保护专项;中央公益性科研院所专项基金(RIF2010-15)。

详细信息

作者简介:
金江群(1986-),女,重庆人,硕士研究生,主要从事崖柏无性繁殖及抗性生理研究(E-mail:tiamojjq@163.com)。

通讯作者:
郭泉水, E-mail: guoqs@caf.ac.cn

中图分类号: Q945.78
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出版历程
- 收稿日期: 2012-05-01
- 修回日期: 2012-10-15
- 发布日期: 2012-12-29

Photosynthetic Characteristics and Water Use Efficiency of Thuja sutchuenensis Franch. During Water Stress and Recovery

1.
Institute of Chongqing Medical Plant Cultivation, Chongqing 408435, China
2. Research Institute of Forest Ecology and Protection, CAF, Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Beijing 100091, China
3. College of Agriculture, Henan University of Science and Technology, Luoyang, Henan 471003, China
4. Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University, Beijing 100083, China
5. Research Institute of Forestry, Chinese Academy of Forestry/Key Laboratory of Tree Breeding and Cultivation, SFA, Beijing 100091, China
6. Experimental Centre of Forestry in North China, Chinese Academy of Forestry, Beijing 102300, China

摘要

摘要: 以4年生崖柏(Thuja sutchuenensis Franch.)盆栽实生苗为材料,试验干旱和复水对崖柏光合特性及水分利用效率的影响。结果显示,在自然干旱处理过程中,叶片相对含水量(LRWC)在土壤相对含水量(SRWC)降至30%之后开始出现下降;净光合速率(P_n)、蒸腾速率(T_r)、胞间CO₂浓度(C_i)、光饱和点(LSP)和最大光合速率(P_max)随着土壤可利用水分的减少而逐渐降低;而表观量子效率(Q)、表观量子需要量(1/Q)及光补偿点(LCP)未发生明显变化;水分利用效率(WUE)则随着SRWC的下降而逐渐提高。在停止浇水50 d后(SRWC下降约95%),叶片萎蔫,净光合速率接近零,复水后3 d,净光合速率(P_n)恢复至对照的88.59%,WUE降至对照的88.63%。通过干旱-复水一系列生理指标的变化分析认为,崖柏为干旱避免型植物。
- 光合特性 /
- 复水 /
- 崖柏 /
- 干旱胁迫 /
- 水分利用效率
Abstract: Photosynthetic characteristics and water use efficiency (WUE) were monitored in four year old seedlings of Thuja sutchuenensis Franch.during drought stress and recovery.Results showed that leaf relative water content (LRWC) decreased after soil relative water content (SRWC) fell below 30% under water stress.Net photosynthetic rate(P_n),transpiration rate (T_r), intercellular CO₂ concentration (C_i),light saturation point (LSP)and the maximum photosynthetic rate (P_max) decreased along with available water reduction, while apparent quantum yield (Q),apparent quantum requirement (1/Q),and light compensation point (LCP) remained.The WUE gradually increased as SRWC fell.P_n reached zero due to leaf wilting after 50 days drought stress (SRWC decreased about 95%).After three days of rewatering, P_n recovered to 88.59% of the control levels and WUE reduced to 88.63% that of the control levels.Through the analysis of physical signs above,we concluded that Thuja sutchuenensis Franch.is a drought-avoiding plant.
- Photosynthetic characteristics /
- Recovery /
- Thuja sutchuenensis /
- Drought stress /
- Water use efficiency

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参考文献(44)

[1]	Chen J W,Zhang Q,Li X S,Cao K F.Gas exchange and hydraulics in seedlings of Hevea brasiliensis during water stress and recovery[J].Tree Physiol, 2010, 30(7): 876-885.
[2]	Terzi R,Kadioglu A.Drought stress tolerance and the antioxidant enzyme system in Ctenanthe setosa[J].Acta Biol Cracov Bot, 2006, 48(2): 89-96.
[3]	Delatorre J,Pinto M,Cardemil L.Effects of water stress and high temperature on photosynthetic rates of two species of Prosopis[J].J Photoch Photobio B, 2008, 92(2): 67-76.
[4]	Ladjal M,Epron D,Ducrey M.Effects of drought preconditioning on thermotolerance of photosystem Ⅱ and susceptibility of photosynthesis to heat stress in cedar seedlings[J].Tree Physiol, 2000, 20(18): 1235-1241.
[5]	Tezara W,Mitchell V,Driscoll S.Water stress inhi-bits plant photosynthesis by decreasing coupling factor and ATP[J].Nature, 1999, 401: 914-917.
[6]	Kaufmann M R.Stomatal response of Engelmann spruce to humidity,light,and water stress¹ rege-nerated trees growing in contrasting environments on the X-C[J].Plant Physiol, 1976, 57: 898-901.
[7]	Oukarroum A,Schansker G,Strasser R J.Drought stress effects on photosystemⅠcontent and pho-tosystem Ⅱ thermotolerance analyzed using Chl a fluorescence kinetics in barley varieties differing in their drought tolerance[J].Physiol Plantarum, 2009, 137(2): 188-199.
[8]	Schwanz P,Polle A.Differential stress responses of antioxidative systems to drought in pendunculate oak (Quercus robur) and maritime pine (Pinus pinaster) grown under high CO₂ concentrations[J].J Eep Bot, 2001, 52(354): 133-143.
[9]	Griffiths H,Parry M A J.Plant responses to water stress[J].Ann Bot, 2002, 89(7): 801-802.
[10]	Hsiao T C.Leaf and root growth in relation to water status[J].HortScience, 1997: 32(3): 427-558.
[11]	宋莉英,孙兰兰,舒展,曾伟,李伟华,彭长连.干旱和复水对入侵三裂叶蟛蜞菊叶片叶绿素荧光特性的影响[J].生态学报, 2009, 29(7): 3714-3719.
[12]	Mahajan S,Tuteja N.Cold,salinity and drought stresses: an overview[J].Arch Biochem Biophys, 2005, 444(2): 139-158.
[13]	Cornic G.Drought stress inhibits photosynthesis by decreasing stomatal aperture-not by affecting ATP synthesis[J].Trends Plant Sci, 2000, 5(5): 187-188.
[14]	尹赜鹏,刘雪梅,商志伟,任静,宋兴舜.不同干旱胁迫下欧李光合及叶绿素荧光参数的响应[J].植物生理学报, 2011, 47(5): 452-458.
[15]	Farjon A,Page C N.Conifers Status survey and conservation action plan[M].IUCN,Gland,Switzerland and Cambridge.UK: IUCN-SSC Conifer Specialist Group, 1999.
[16]	刘建锋,肖文发,郭志华,江泽平,刘正宇.珍稀濒危植物——崖柏种群结构与动态初步研究[J].江西农业大学学报, 2004, 26(3): 378-380.
[17]	刘建锋,江泽平,肖文发,王建修.极度濒危植物——崖柏种群空间格局[J].江西农业大学学报, 2005, 27(5): 708-712.
[18]	郭泉水,王祥福,巴哈尔古丽,康义,洪明,裴顺祥,张发君.崖柏群落维管束植物生活型组成、叶子性状及层次层片结构[J].应用生态学报, 2009, 20(9): 2057-2062.
[19]	王祥福,郭泉水,巴哈尔古丽,刘正宇,任明波.崖柏群落优势乔木种群生态位[J].林业科学, 2008, 44(4): 6-13.
[20]	郭泉水,王祥福,巴哈尔古丽,万全兴.崖柏群落优势乔木树种种间关系[J].生态学杂志, 2007, 26(12): 1911-1917.
[21]	王祥福,郭泉水,刘正宇,刘正宇;任明波,巴哈尔古丽,罗正均.崖柏群落种子植物区系组成分析[J].林业科学研究, 2007, 20(6): 755-762.
[22]	刘建锋,肖文发.濒危植物崖柏遗传多样性的RAPD分析[J].江西农业大学学报, 2008, 30(1): 68-72.
[23]	张仁波,窦全丽,何平,邓洪平.濒危植物崖柏遗传多样性研究[J].广西植物, 2007, 27(5): 687-691.
[24]	刘建峰,杨文娟,史胜青,郭泉水,江泽平.崖柏与侧柏光合特性和叶绿素荧光参数的比较研究[J].西北植物学报, 2011, 31(10): 2071-2077.
[25]	刘建峰,杨文娟,江泽平,郭泉水,金江群,薛亮.遮荫对濒危植物崖柏光合作用和叶绿素荧光参数的影响[J].生态学报, 2011, 31(20): 5999-6004.
[26]	Farquhar G,Caemmerer S.A biochemical model of photosynthetic CO₂ assimilation in leaves of C3 species[J].Planta, 1980, 149(1): 78-90.
[27]	Yordanov I,Velikova T,Tsonev V.Plant responses to drought,acclimation,and stress tolerance[J].Photosynthetica, 2000, 38(1): 171-186.
[28]	Farquhar G D,Sharkey T D.Stomatal conductance and photosynthesis[J].Annu Rev Plant Phys, 1982, 33: 317-345.
[29]	张卫强,贺康宁,田晶会,王正宁,尹婧,刘晨峰.不同土壤水分下侧柏苗木光合特性和水分利用效率的研究[J].水土保持研究, 2006, 13(6): 44-47.
[30]	Marek M,Masaroviová E,Kratochvilová I,Eliáš P,Janouš D.Stand microclimate and physiological activity of tree leaves in an oak-hornbeam forest[J].Trees, 1989, 4: 234-240.
[31]	许大全.光合作用效率[M].上海: 上海科学技术出版社, 2002: 3-4.
[32]	Fiacono K,Sommer K J.Response of electron transport rate of water stress-affected grapevines: influence of leaf age[J].Vitis, 2000, 39(4): 137-144.
[33]	Cristescu M,Anton D,Nicu C,Mand M.Research on the influence of water stress on photosynthetic parameters at some species of succulent flower plants[J].Universitatea din Craiova University of Craiova, 2011, 16(52): 111-118.
[34]	Warren C R,Livingston N J,Turpin D H.Water stress decreases the transfer conductance of Douglas-fir (Pseudotsuga menziesii) seedlings[J].Tree physiol, 2004, 24(9): 971-979.
[35]	Saibo N J M,Lourenc T,Oliveira M M.Transcription factors and regulation of photosynthetic and related metabolism under environmental stresses[J].Ann Bot, 2009, 103(4): 609-623.
[36]	Grassi G,Magnani F.Stomatal,mesophyll conductance and biochemical limitations to photosynthesis as affected by drought and leaf ontogeny in ash and oak trees[J].Plant Cell Enviro, 2005, 28(7): 834-849.
[37]	Escalona J M,Flexas J,Medrano H.Stomatal and non-stomatal limitations of photosynthesis under water stress in field-grown grapevines[J].Aust J Plant Physiol, 1999, 26(5): 421-433.
[38]	Eastman P.Regulation of photosynthesis in interior spruce during water stress: changes in gas exchange and chlorophyll fluorescence[J].Tree Physiol, 1995, 15(4): 229-235.
[39]	Taiz L,Zeiger E.Plant Physiology[M].4th ed.宋纯鹏,王学路,等译.北京: 科学出版社, 2009: 55, 554.
[40]	Pou A,Flexas J,Alsina Mdel M,Bota J,Carambula C,de Herralde F,Galmés J,Lovisolo C,Jiménez M,Ribas-Carbó M,Rusjan D,Secchi F,Tomàs M,Zsófi Z,Medrano H.Adjustments of water use efficiency by stomatal regulation during drought and recovery in the drought-adapted Vitis hybrid Richter-110 (V.berlandieri×V.rupestris)[J].Plant Physiol, 2008, 134(2): 313-323.
[41]	Rouhi V,Samson R,Lemeur R,Van Damme P.Photosynthetic gas exchange characteristics in three different almond species during drought stress and subsequent recovery[J].Environ Exp Bot, 2007, 59(2): 117-129.
[42]	Martinez-Ferri E,Balaguer L,Valladares F,Chico J M,Manrique E.Energy dissipation in drought-avoiding and drought-tolerant tree species at midday during the Mediterranean summer[J].Tree Physiol, 2000, 20(2): 131-138.
[43]	Schwanz P,Picon C,Vivin P,Erwin D,Jean-Marc C,Andrea P.Responses of antioxidative systems to drought stress in pendunculate oak and maritime pine as modulated by elevated CO₂[J].Plant Physiol, 1996, 110(2): 393-402.
[44]	Picon C,Guehl J M,Ferhi A.Leaf gas exchange and carbon isotope composition responses to drought in a drought-avoiding (Pinus pinaster) and a drought-tolerant (Quercus petraea) species under present and elevated atmospheric CO₂ concentrations[J].Plant Cell Enviro, 1996, 19(2): 182-190.

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干旱和复水对崖柏光合特性及水分利用效率的影响

作者简介: 金江群(1986-),女,重庆人,硕士研究生,主要从事崖柏无性繁殖及抗性生理研究(E-mail:tiamojjq@163.com)。

通讯作者: 郭泉水, E-mail: guoqs@caf.ac.cn

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出版历程

Photosynthetic Characteristics and Water Use Efficiency of Thuja sutchuenensis Franch. During Water Stress and Recovery

计量

出版历程

目录

作者简介:
金江群(1986-),女,重庆人,硕士研究生,主要从事崖柏无性繁殖及抗性生理研究(E-mail:tiamojjq@163.com)。

通讯作者:
郭泉水, E-mail: guoqs@caf.ac.cn