二氧化碳加富与阳光紫外辐射对球形棕囊藻的耦合效应

陈善文; 高坤山

二氧化碳加富与阳光紫外辐射对球形棕囊藻的耦合效应

陈善文^1,,
高坤山²

1.
汕头大学海洋生物研究所,广东汕头 515063
2.
厦门大学近海海洋环境科学国家重点实验室,福建厦门 361005

基金项目: 国家自然科学基金项目(40930846);"长江学者和创新团队发展计划"(IRT0941)。

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出版历程
- 收稿日期: 2010-11-18

The coupled effects of carbon dioxide enrichment and ultroviolet radiation on Phaeocystis globosa Scherffel

CHEN Shan-wen^1
,,
GAO Kun-shan²

1.
Marine Biology Institute, Shantou University, Shantou 515063, China
2.
State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China

摘要

摘要: 在含有和滤除紫外(UV)辐射(UVR,280~400 nm)的阳光条件下,向静止、恒温的培养体系中分别充含390×10^-6和800×10^-6体积CO₂的空气,以期探讨CO₂浓度升高与阳光UV辐射对球形棕囊藻(Phaeocystis globosa Scherffel)的生理生态学影响。结果显示,该藻对CO₂加富和UVR的响应与细胞密度密切相关。在细胞密度较低时,CO₂加富导致生长和有效光化学效率分别下降了11.0%和10.7%,UVR对两者的抑制率分别达19.2%和41.7%。在细胞密度较高时,CO₂加富和UVR的影响明显减小,UVR的存在甚至导致生长速率的增加。UVR降低了该藻的最大电子传递速率及光能利用效率,在周围空气下分别达14.1%和21.0%,CO₂加富使其进一步下降,分别达8.2%和17.6%。细胞Chl a和Chl c及类胡萝卜素含量在高CO₂条件下显著增加(达4.6%,5.9%和5.2%);UVR导致类胡萝素含量升高(达4.3%)。结果表明,在阳光辐射下,CO₂加富导致球形棕囊藻抵御强光及UVR胁迫能力下降,其对此的生化响应是增加具有保护作用的类胡萝卜素的含量。
- 二氧化碳 /
- 紫外辐射 /
- 生长 /
- 光化效率 /
- 球形棕囊藻
Abstract: CO₂ perturbation experiments were carried out under the solar radiation with or without UV radiation (280~400 nm) in a temperature-controlled water bath to evaluate the coupled effects of CO₂ and UVR on Phaeocystis globosa Scherffel that forms harmful algal blooms. The results show that both of high CO₂ and UVR stress on the algae. The high concentration CO₂ decreases a specific growth rate and the photochemical efficiency of the algae by up to 11.0% and 10.7%, respectively, and the UVR does further them 19.2% and 41.7%. With its cell density increasing, however, their inhibition to the alga was declining, and to minus value. UVR decreases its maximal relative electron transpert rate and photosynthetic efficiency by 14.1% and 21.0%, respectively, in ambient air, and additional 8.2% and 17.6% in the CO₂-enriched. CO₂ enrichment increases chlorophyll a, chlorophyll c and carotenoids by 4.6%,5.9% and 5.2%, respectively. The UVR increases carotenoids by 4.3%. The studies indicate that the high concentration CO₂ aggravates the damage of UVR to the algae, which increaseds in carotenoids as a protective response.
- carbon dioxide /
- growht /
- photochemical efficiency /
- Phaeocystis globosa /
- ultroviolet

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参考文献(32)

CALDEIRA K, WICKETT M E. Anthropogenic carbon and ocean pH[J]. Nature, 2003, 425: 365.

KERR R A. Ozone loss, greenhouse gases linked[J]. Science, 1998, 280(5361):202.

DAMERIS M. Depletion of the ozone layer in the 21st century[J]. Angewandte Chemie International Edition, 2010, 49: 489-491.

RSVISHANKARA A R, DANIEL J S, PORTMANN R W. Nitrous oxide (N₂O): the dominant ozone-depleting substance emitted in the 21st century[J]. Science, 2009, 326: 123-125.

HEIN M, SAND-JENSEN K. CO₂ increases oceanic primary production[J]. Nature, 1997, 388: 526-527.

邹定辉, 陈雄文.高浓度CO₂对条浒苔(Enteromorpha clathrata)生长和一些生理生化特征的影响[J]. 海洋通报. 2002,21: 38-45.

GAO K S, GUAN W Q, HELBLING E W. Effects of solar ultraviolet radiation on photosynthesis of the marine red tide alga Heterosigma akashiwo (Raphidophyceae)[J]. Journal of Photochemistry and Photobiology: B, 2007, 86: 936-951.

GAO K S, LI G, HELBLING E W, et al. Variability of UVR effects on photosynthesis of summer phytoplankton assemblages from a tropical coastal area of the South China Sea [J]. Journal of Photochemistry and Photobiology: B, 2007, 83: 802-809.

GAO K S, WU Y P, LI G, et al. Solar UV radiation drives CO₂ fixation in marine phytoplankton: a double-edged sword[J]. Plant Physiology, 2007, 144: 54-59.

BEARDALL J, RAVEN J A. The potential effects of global climate change on microalgal photosynthesis, growth and ecology [J]. Phycologia, 2004, 43: 26-40.

WU H Y, GAO K S, VILLAFANE V E, et al. Effects of Solar UV radiation on morphology and photosynthesis of filamentous cyanobacterium Arthrospira platensis[J]. Applied Environmental Microbiology, 2005, 71:5004-5013.

关万春,高坤山.阳光紫外辐射对两种微藻类光化学效率的影响[J]. 水生生物学报,2007,31:153-158.

HELBLING E W, GAO K S, RODRIGO J G, et al. Utilization of solar UV radiation by coastal phytoplankton assemblages off SE China when exposed to fast mixing[J]. Marine Ecology Progress Series, 2003, 259: 59-66.

GAO K S, ARUGA Y, ASADA K, et al. Enhanced growth of red alga Porphyra yezoensis Ueda in high CO₂concentrations[J]. Journal of applied Phycology,1991, 3: 355-362.

GAO K S, ARUGA Y, ASADA K, et al. Influence of enhanced CO₂ on growth and photosynthesis of the red algae Gracilaria sp. and G. chiliensis[J]. Journal of Applied Phycology,1993, 5: 563-571.

胡晗华, 高坤山. CO₂浓度倍增对牟氏角毛藻生长和光合作用的影响[J]. 水生生物学报,2001,25: 636-639.

WU H Y, ZOU D H, GAO K S.Impacts of increased atmospheric CO₂ concentration on photosynthesis and growth of micro- and macro-algae[J]. Science in China: Series C. Life Sciences, 2008, 51: 1144-1150[J]. Plant, Cell and Environment, 2004, 27: 1447-1458

ZHENG Y Q, GAO K S. Impacts of solar UV radiation on the photosynthesis, growth, and UV-absorbing compounds in Gracilaria lemaneiformis (Rhodophyta) grown at different nitrate concentration [J]. Journal of Phycology, 2009, 45:314-323.

SCHOEMANN V, BECQUEVORT S, STEFELS J, et al. Phaeocystis blooms in the global ocean and their controlling mechanisms: a review[J]. Journal of Sea Research,2005, 53: 43-66.

CADEE G C. Accumulation and sedimentation of Phaeocystis globosa in the Dutch Wadden Sea[J]. Journal of Sea Reseach, 1996, 36: 321-327.

RILEGMAN R, BOEKEL W V. The ecophysiology of Phaeocystis globosa: a review[J]. Journal of Sea Research, 1996. 35 (4): 235-242.

CHEN Y Q, WANG N, ZHANG P, et al. Molecular evidence identifies bloom-forming Phaeocystis (Prymnesiophyta) from coastal waters of southeast China as Phaeocystis globosa[J]. Biochemical Systematics and Ecology, 2002, 30: 15-22.

CHEN S W, GAO K S. Solar ultroviolet radiation and CO₂-induced ocean acidification interacts to influence the photosynthetic performance of the red tide alga Phaeocystis globosa (Chrysophyte)[J]. Hydrobiologia, 2011,DOI: 10.1007/S10750-011-0807-0.

JEFFREY S M, HAXO F T. Photosynthetic pigments of dinoflagellates (Zooxanthellae) from corals and clams[J]. Biology Bulletin, 1968, 135: 149-165.

ANDERSON D H, ROBINSON R J. Rapid electrometric determination of the alkalinity of sea water using a glass electrode[J]. Industrial and Engineering Chemistry, 1946, 18: 767-769.

LEWIS E, WALLACE D W R. Program developed for CO₂ system calculations . ORNL/CDIAC- 105. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy. 1998.Available from http://cdiac.ornl.gov/oceans/CO₂ rprt.html. Accessed 12 June 2007.

GUAN W Q, GAO K S. Light histories influence the impacts of solar ultraviolet radiation on photosynthesis and growth in a marine diatom Skeletonema costatum[J]. Journal of Photochemistry and Photobiology: B. Biology. 2008, 91: 151-156.

SATOH A, KURANO N, SENGER H, et al. Regulation of energy balance in photosystems in response to changes in CO₂ concentration and light intensities during growth in extremely-high-CO₂-tolerant green microalgae[J]. Plant Cell Physiology, 2002, 43: 440-451.

SOBRINO C, NEALE P J, LUBIAN L M. Interaction of UV radiation and inorganic carbon supply in the inhibition of photosynthesis: spectral and temporal response of two marine picoplankton[J]. Journal of Photochemistry and Photobiology: B, 2005, 81: 384-393.

WU Y P, GAO K, RIEBESELL U. CO₂-induced seawater acidification affects physiological performance of the marine diatom Phaeodactylum tricornutum[J]. Biogeosciences, 2010, 7: 2915-2923.

QIU B S, LIU J Y. Utilization of inorganic carbon in the edible cyanobacterium Ge-Xian-Mi (Nostoc) and its role in alleviating photo-inhibition[J]. Plant, Cell and Environment, 2004, 27: 1447-1458.

SOBRINO C, WARD M L, NEALE P J. Acclimation to elevated carbon dioxide and ultraviolet radiation in the diatom Thalassiosira pseudonana: effects on growth, photosynthesis, and spectral sensitivity of photoinhibition[J]. Limnology and Oceanography, 2008, 53: 494-505.

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