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植物研究  2014 

温度升高对杨树树皮绿色组织和叶片光合作用、叶绿素荧光特性的影响

DOI: 10.7525/j.issn.1673-5102.2014.06.007, PP. 758-764

Keywords: 叶片,树皮绿色组织,光合作用,叶绿素荧光特性

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Abstract:

?叶片和树皮绿色组织是杨树两类重要的光合组织,分析其光合特征对温度升高的响应能够全面了解这一植物在适应气候变暖过程中的光合生理变化。本研究设置3个温度梯度(白天温度/夜间温度)23℃/18℃,28℃/23℃及33℃/28℃,分别从光合作用、叶绿素荧光特性等方面研究杨树(Populusalba×Populusberolinensis)叶片与树皮绿色组织对温度升高的响应及二者存在的差异。研究结果表明,随着温度升高,树皮绿色组织和叶片叶绿素含量没有发生明显变化,但树皮绿色组织叶绿素a/b的值随着温度升高明显降低。温度升高对叶片和树皮绿色组织的光合作用产生重要影响,叶片净光合速率(Pn)、光合效率(PE)、叶片气孔导度(Gs)及蒸腾速率(Tr)随着温度升高显著增强,但水分利用效率(WUE)却显著下降。树皮绿色组织净光合速率和光合效率具有和叶片相一致的反应,随着温度升高明显增强,但其它光合气体交换指标未发生显著变化。叶片和树皮绿色组织叶绿素荧光参数对温度升高响应基本一致,光系统Ⅱ实际光化学效率(ΦPSⅡ)、光化学淬灭(qP)、电子传递速率(ETR)及非光化学淬灭(NPQ)在33℃处理均表现为明显地降低,但二者光系统Ⅱ最大荧光效率(Fv/Fm)随着温度升高没有发生降低现象。本研究的研究结果表明气孔因素是导致杨树树皮绿色组织和叶片Pn随着温度升高而增大的主要原因。

References

[1]  2.李娜,孙涛,毛子军.长期极端高温胁迫对樟子松幼苗生物量及非结构性碳水化合物的影响[J].植物研究,2014,34(2):212-218.
[2]  3.Chen W R,Zheng J S,Li Y Q,et al.Effects of high temperature on photosynthesis,chlorophyll fluorescence,chloroplast ultrastructure,and antioxidant activities in Fingered citron[J].Russian Journal of Plant Physiology,2012,59(1):732-740.
[3]  4.Mackey K R M,Paytan A,Caldeira K,et al.Effect of temperature on photosynthesis and growth in Marine synechococcus spp.[J].Plant Physiology,2013,163(2):815-829.
[4]  5.Tait L W,Schiel D R.Impacts of Temperature on primary productivity and respiration in naturally structured macroalgal assemblages[J].Plos One,2013,8(9):1-10.
[5]  6.汪炳良,徐敏,曹家树,等.高温胁迫对早熟花椰菜叶片抗氧化系统和叶绿素及其荧光参数的影响[J].中国农业科学,2004,37(8):1245-1250.
[6]  7.Enami I,Kitamura M,Tomo T,et al.Is the primary cause of thermal inactivation of oxygen evolution in spinach PSⅡ membranes release of the extrinsic 33kDa protein or of Mn[J].Biochim Biophys Acta,1994(1-2),1186:52-58.
[7]  8.Wittmann C,Pfanz H.Antitranspirant functions of bark periderms and their influence on corticular photosynthesis under drought stress[J],Trees,2008,22(2):187-196.
[8]  9.Pfanz H,Kerkien B,Lomsky B,et al.Inhibition of leaf and twig photosynthesis of Fagus sylvatica by air pollutants[J].Journal of Agricultural Meteorology,2005,60(6):1193-1195.
[9]  10.王文杰,祖元刚,王慧梅.林木非同化器官树枝(干)光合功能研究进展[J].生态学报,2007,27(4):1583-1595.
[10]  11.Aschan G,Pfanz H.Non-foliar photosynthesis- a strategy of additional carbon acquisition Flora-Morphology,Distribution[J].Functional Ecology of Plants,2003,198(2):81-97.
[11]  12.Kharouk V I,Middleton E M,Spencer S L.Aspen bark photosynthesis and its significance to remote sensing and carbon budget estimates in the boreal ecosybark[J].Water,Air &Soil Pollution,1995,82(2):483-497.
[12]  13.Ruan M G,Lavigne M B,Gower S T.Annual carbon cost of autotrophic respiration in boreal forest ecosybarks in relation to species and climate[J].Journal of Geophysical Research,1997,102(24):29029-29041.
[13]  14.Tjoelker M G,Oleksyn J,Reich P B.Acclimation of respiration to temperature and CO 2 in seedlings of boreal tree speciesin relation to plant size and relative growth rate[J].Global Change Biology,1999,5(6):679-691.
[14]  15.Owe L F,Griffin K L,Whitehead A S,et al.Thermal acclimation of leaf respiration but not photosynthesis in Populus deltoides× nigra[J].New Phytologist,2008,178(1):123-134.
[15]  16.王文杰,贺海升,关宇,等.丙酮和二甲基亚砜法测定植物叶绿素和类胡萝卜素的方法学比较[J].植物研究,2009,29(2):224-229.
[16]  17.赵甍,王秀伟,毛子军.不同氮素浓度下CO 2浓度、温度对蒙古栎( Quercus ongolica)幼苗叶绿素含量的影响[J].植物研究,2006,26(3):337-341.
[17]  18.Damesin C.Respiration and photosynthesis characteristics of current-year barks of Fagus sylvatica:from the seasonal pattern to an annual balance[J].New Phytologist,2003,158(3):465-475.
[18]  19.Berveiller D,Kkerzkowski D,Damesin C.Interspecific variability of stem photosynthesis among tree species[J].Tree Physiology,2007(1),27:53-61.
[19]  20.Wittmann C,Matyssek R,Pfanz H,et al.Effects of ozone impact on the gas exchange and chlorophyll fluorescence of juvenile birch barks Betula pendula Roth [J].Environmental Pollution,2007,150(2):258-266.
[20]  21.祖元刚,张衷华,王文杰,等.薇甘菊叶和茎的光合特性[J].植物生态学报,2006,30(6):998-1004.
[21]  22.Hibberd J M,Quick W P.Characteristics of C 4 photosynthesis in barks and petioles of C 3 flowering plants[J].Nature,2002,415(23):451-454.
[22]  23.Wang W J,Wang H M,Zu Y G,et al.Newly-formed photosynthates and the respiration rate of girdled barks of Korean pine[J].Photosynthetica,2006,44(4):147-150.
[23]  24.王文杰,张衷华,祖元刚,等.薇甘菊( Mikania micrantha)非同化器官光合特征及其生态学意义[J].生态学报,2009,29(1):28-36.

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