不同水分条件下三种附生地衣的光合作用特性

doi:10.7677/ynzwyj201413231

摘要/Abstract

摘要：

附生地衣是哀牢山湿性常绿阔叶林生态系统中重要的结构性组分。通过对该区域山地森林中3种典型附生地衣平滑牛皮叶 (Sticta nylanderiana)、网肺衣 (Lobaria retigera) 和橄榄斑叶 (Cetrelia olivetorum)在不同水分条件下的光合光响应及荧光参数的测定分析，结果显示，附生地衣光补偿点 (LCP)、光饱和点 (LSP)较高，对强光适应能力较强。在水分胁迫 (含水量5%~10%) 条件下，3种附生地衣的最大净光合速率 (Pmax) 仅为17~50nmol·g-1·s-1。随着含水量的增加，地衣的最大净光合速率 (Pmax) 与暗呼吸速率 (Rday) 逐渐增大，LCP降低，而LSP随之提高，这表明3种附生地衣具备“阳生植物”的某些特性，从而能够在一定程度上适应野外光照较强的灌丛、向阳林冠等生境。地衣叶绿素光反应中心初始荧光参数 (F0) 和最大光化学效率 (Fv/Fm) 随含水量下降而显著降低，暗示其光反应中心对水分有很强的敏感性。水分条件的改善有助于附生地衣的光反应中心进入到较高的生理活性状态。

关键词: 附生地衣, 含水量, 光合作用, 光响应, 荧光特征

Abstract:

Epiphytic lichen is one of the important structural components of montane moist evergreen broadleaved forest ecosystem in Ailao Mts. The photosynthesis light response curves of three dominant epiphytic lichens Sticta nylanderiana, Lobaria retigera and Cetrelia olivetorum, were determined in the region under different water conditions. The results showed that the three epiphytic lichens had high light compensation points (LCP) and light saturation points (LSP). The epiphytic lichens were able to adapt to strong light conditions. The maximum net photosynthetic rates (Pmax) of three epiphytic lichens were low, with the range of 17~50nmol·g-1·s-1, under water stress (water content of 5%~10%). With the increasing water content, the Pmax, respiration rate (Rday), the LSP of three lichens increased while the LCP decreased. These epiphytic lichens have the characteristics of “sun plants”, and they are able to adapt to the strongilluminated shrubs and branches. The initial chlorophyll fluorescence (F0) and maximum photochemical efficiency parameter (Fv/Fm) were deceased with water content decreasing, indicating the photosynthetic reaction center of lichens had a strong sensitivity to water condition. The photosynthetic reaction center would recover into an active physiological state with the improvement of the water condition.

Key words: Epiphytic lichens, Water content, Photosynthesis, Light response, Fluorescence characteristics

中图分类号:

Q 945

陈克, 刘文耀, 李苏, 宋亮. 不同水分条件下三种附生地衣的光合作用特性[J]. Plant Diversity, 2014, 36(05): 603-610.

CHEN Ke, LIU Wen-Yao, LI Su, SONG Liang. Photosynthetic Characteristics of Three Epiphytic Lichens under Different Water Conditions[J]. Plant Diversity, 2014, 36(05): 603-610.

参考文献

王立松, 2012. 中国云南地衣［M］. 上海: 上海科学技术出版社
Bai KD (白坤栋), Jiang DB (蒋得斌), Cao KF (曹坤芳) et al., 2010. Photosynthetic response to seasonal temperature changes in evergreen and deciduous broadleaved trees in montane forests of Ailao Mountain and Mao’er Mountain［J］. Acta Ecologica Sinica (生态学报), 30 (4): 0905—0913
Barták M, Solhaug KA, Vráblíková H et al., 2006. Curling during desiccation protects the foliose lichen Lobaria pulmonaria against photoinhibition［J］. Oecologia, 149: 553—560
Benzing DH, 1998. Vulnerabilities of tropical forests to climate change: the significance of resident epiphytes［J］. Climatic Change, 39 (2): 519—540
Bukhov NG, Govidachary S, Egorova EA et al., 2004. Recovery of photosystem I and II activities during rehydration of lichen Hypogymnia physodes thalli［J］. Planta, 219: 110—120
Chen ZC (陈志成), Wang RR (王荣荣), Wang ZW (王志伟) et al., 2012. Light response of photosynthesis of Koelreuteria paniculata Laxm. under different soil water conditions［J］. Science of Soil and Water Conservation (中国水土保持科学), 10 (3): 105—110
Cooper, 1975. Photosynthesis and Productivity in Different Environments［M］. New York: Cambridge University Press
Coote L, Smith GF, Kelly DL et al., 2012. Epiphytes of Sitka spruce (Picea sitchensis) plantations in Ireland and the effects of open spaces［J］. Biodiversity and Conservation, 16 (14): 4009—4024
Endo T, Okuda T, Tamura M et al., 2002. Estimation of net photosynthetic rate based on insitu hyperspectral data［J］. Agricultural and Forest Meteorology, 41: 564—57
Foster P, 2001. The potential negative impacts of global climate change on tropical montane cloud forests［J］. Earth Science Reviews, 55: 73—106
Graham DF, 2001. Models of photosynthesis［J］. Plant Physiology, 125: 42—45
Green TGA, Büdel B, Meyer A et al., 1997. Temperate rainforest lichens in New Zealand: light response of photosynthesis［J］. New Zealand Journal of Botany, 35: 493—504
Lakatos M, Obregón A, Büdel B et al., 2012. Midday dewan overlooked factor enhancing photosynthetic activity of corticolous epiphytes in a wet tropical rain forest［J］. New Phytologist, 194: 245—253
Lange OL, Büdel B, Heber U et al., 1993. Temperate rainforest lichens in New Zealand: high thallus water content can severely limit photosynthetic CO2 exchange［J］. Oecologia, 95: 303—313
Lange OL, Green TGA, 1996. High thallus water content severely limits photosynthetic carbon gain of central European epilithic lichens under natural conditions［J］. Oecologia, 108 (1): 13—20
Lange OL, 2003. Photosynthetic productivity if the epilithic lichen Lecanora muralis: longterm field monitoring of CO2 exchanges physiological interpretation. III. Diel, seasonal, and annual carbon budgets［J］. Flora, 198: 277—292
Lange OL, Büdel B, Meyer A et al., 2004. Lichen carbon gain under tropical conditions: water ralations and CO2 exchange of three Lobariaceae species of a lower montane rainforest in Panama［J］. Lichenologist, 36: 329—334
Lange OL, Green TGA, Meyer A et al., 2007. Water relations and carbon dioxide exchange of epiphytic lichens in the Namib fog desert［J］. Flora, 202: 479—487
Li S (李苏), Liu WY (刘文耀), Wang LS (王立松) et al., 2007. Species diversity and distribution of epiphytic lichens in the primary and secondary forests in Ailao Mountain, Yunnan［J］. Biodiversity Science (生物多样性), 15 (5): 445—455
Li S, Liu WY, Li DW, 2013a. Epiphytic lichens in subtropical forest ecosystems in southwest China: Species diversity and implications for conservation［J］. Biological Conservation, 159: 88—95
Li W, Lan SB, Zhang DL et al., 2013b. Recovery of chlorophyll fluorescence and CO2 exchange in lichen soil crusts after rehydration［J］. European Journal of Soil Biology, 55: 77—82
Liu WW (刘维暐), Chen C (陈翠), He RH (和荣华) et al., 2013. Photosynthesis characteristics of four Paris (Trilliaceae) species［J］. Plant Diversity and Resources (植物分类与资源学报), 35 (5): 594—600
Liu YF (刘宇峰), Xiao LT (萧浪涛), Tong JH (童建华) et al., 2009. Primary application on the nonrectangular hyperbola model for photosynthetic lightresponse curve［J］. Chinese Agricultural Science Bulletin (中国农学通报), 21 (8): 76—79
Lu PL (陆佩玲), Yu Q (于强), Luo Y (罗毅) et al., 2001. Fitting light response curves of photosynthesis of winter wheat［J］. Chinese Journal of Agrometeorology (中国农业气象), 22 (2): 12—14
Lüttge U, 2013. Desiccation tolerance of the epilithic lichen Lecanora muralis (Schreb.) Rabenh. in the temperate climate［J］. Flora, 208: 233—237
Nash III TH, 2008. Lichen Biology (Second Edition) ［M］. New York: Cambridge University Press
Qian LW (钱莲文), Zhang XS (张新时), Yang ZJ (杨智杰) et al., 2005.Comparison of different ligh response models for photosynthesis［J］.Journal of Wuhan Botanical Research (武汉植物学研究), 27 (2): 197—203
Song L (宋亮), Liu WY (刘文耀), 2011. Epiphytic plants: Their responses to global change and roles in bioindication［J］. Chinese Journal of Ecology (生态学杂志), 30 (1): 145—154
Strong CL, Bullard JE, Burford MA et al., 2013. Response of cyanobacterial soil crusts to moisture and nutrient availability［J］. Catena, 190: 195—202
Sun JK (孙景宽), Zhang WH (张文辉), Lu ZH (陆兆华) et al., 2009. Chlorophyll fluorescence characteristics of Elaeagnus angustifolia L. and Grewia biloba G. Don var. parviflora (Bge.) Hand.Mazz. seedlings under drought stress［J］. Bulletin of Botanical Research (植物研究), 29 (2): 216—223
Wang BY (王博轶), Ma HJ (马洪军), Su TW (苏腾伟) et al., 2012. Physiological response and acclimation to changes in light regimes in two tropical rainforest species［J］. Plant Physiology Journal (植物生理学报), 48 (3): 232—240
Wang XW (王秀伟), Mao ZJ (毛子军), 2009. Practicability of 7 light responsive curve models to different plant species［J］. Bulletin of Botanical Research (植物研究), 29 (1): 43—48
Wang Y (王琰), Chen JW (陈建文), Di XY (狄晓艳), 2011. Characterization of the responses of photosynthetic and chlorophyll fluorescence parameters to water stress in seedlings of six provenances of Chinese Pine (Pinus tabulaeformis Carr.)［J］. Acta Ecologica Sinica (生态学报), 23: 7031—7038
Wu JB (吴家兵), Guan DX (关德新), Zhang M (张弥) et al., 2006. Photosynthetic characteristics of Quercus mongolica in region of Changbai Mountain［J］. Journal of the Graduate School of the Chinese Academy of Sciences (中国科学院研究生院学报), 23 (4): 548—554
Xu ZZ, Shimizu H, Yagasaki Y et al., 2013. Interactive effects of elevated CO2, drought, and warming on plants［J］. Journal of Plant Growth Regulation, 32: 692—707
Yamori W, Evans JR, Von Caemmerer S, 2010. Effects of growth and measurement light intensities on temperature dependence of CO2 assimilation rate in tobacco leaves［J］. Plant, Cell & Environment, 33: 332—343

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