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湖泊科学  2014 

铜绿微囊藻(Microcystisaeruginosa)和蛋白核小球藻(Chlorellapyrenoidosa)生长及光合活性对温度和光照交互作用的响应

DOI: 10.18307/2014.0516

Keywords: 铜绿微囊藻,蛋白核小球藻,升温,光减弱,光合活性

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Abstract:

通过室内纯培养,分别设定不同温度梯度(14、16、18℃)和光照梯度(100、250、360μmol/(m2·s)),以模拟全球气候变化条件下,温带湖泊春季温度升高与光照减弱交互作用对铜绿微囊藻和蛋白核小球藻生长和光合活性的影响.通过流式细胞计数测定其生长曲线,观测其变化趋势,并利用叶绿素荧光仪PHYTO-PAM测定藻类光合活性.结果表明,当温度为18℃,光强为100μmol/(m2·s)时,铜绿微囊藻生长速率最大,细胞密度达到2.99×106cells/ml.在该温度和光照强度下,其光合活性也远高于其他实验组,其Fv/Fm值达到最大值0.39.蛋白核小球藻在温度为16和18℃时,其生长速率差异不大,但明显高于在温度为14℃时的生长速率,其光合活性处于波动状态.与蛋白核小球藻相比,温度升高和光照减弱对铜绿微囊藻生长和光合活性的促进作用更为明显,而且随着温度的升高,铜绿微囊藻生长对低光的偏好更为显著.因此,全球变暖所导致的高温低光环境可能有利于确立铜绿微囊藻在湖泊中的优势地位.

References

[1]  Piao S,Ciais P, Huang Y et al. The impacts of climate change on water resources and agriculture in China. Nature, 2010,467(7311):43-51.
[2]  Zhang M, Duan HT, Shi XL et al. Contributions of meteorology to the phenology of cyanobacterial blooms:Implications for future climate change. Water Research, 2012,46(2):442-452.
[3]  张运林,秦伯强,陈伟民等.太湖无锡地区近40a来日照的变化特征分析.气象科学,2003,23(2):231-236.
[4]  Robarts RD, Zohary T. Temperature effects on photosynthetic capacity, respiration, and growth rates of bloom-forming cyanobacteria. New Zealand Journal of Marine and Freshwater Research, 1987,21(3):391-399.
[5]  Reynolds CS. Vegetation processes in the pelagic:a model for ecosystem theory. Oldendorf/Luhe:Institute of Freshwater Ecology, 1997:25-36.
[6]  J hnk KD, Huisman J, Sharples J et al. Summer heatwaves promote blooms of harmful cyanobacteria. Global Change Biology, 2008,14(3):495-512.
[7]  韩博平,韩志国,付翔.藻类光合作用机理与模型.北京:科学出版社,2003:12-15.
[8]  Jiang HB, Kong RQ, Xu XD. The N-acetylmuramic acid 6-phosphate etherase gene promotes the growth and cell differentiation in cyanobacteria under light-limiting conditions. Journal of Bacteriology, 2010,192(8):2239-2245.
[9]  王成林,潘纬玉,韩月琪等.全球气候变化对太湖蓝藻水华发展演变的影响.中国环境科学,2010,30(6):822-828.
[10]  曹焕生,孔繁翔,谭啸等.太湖水华蓝藻底泥中复苏和水生长的比较.湖泊科学,2006,18(6):585-589.
[11]  马荣华,孔繁翔,段洪涛等.基于卫星遥感的太湖蓝藻水华时空分布规律认识.湖泊科学,2008,20(6):687-694.
[12]  更多...
[13]  St?hl-Delbanco A, Hansson LA. Effects of bioturbation on recruitment of algal cells from the \'seed bank\' of lake sediments. Limnology and Oceanography, 2002,47(6):1836-1843.
[14]  Brunberg AK, Blomqvist P. Benthic overwintering of Microcystis colonies under different environmental conditions. Journal of Plankton Research, 2002,24(11):1247-1252.
[15]  Latour D, Sabido O, Salen?on MJ et al. Dynamics and metabolic activity of the benthic cyanobacterium Microcystis aeruginosa in the Grangent Reservoir (France). Journal of Plankton Research, 2004,26(7):719-726.
[16]  Stahl-Delbanco A, Hansson LA, Gylistr m M. Recruitment of resting stages may induce blooms of Microcystis at low N:P ratios. Journal of Plankton Research, 2003,25(9):1099-1106.
[17]  汤俊,宋立荣,孙松松等.低光低温联合作用对铜绿微囊藻复苏能力的影响.环境科学,2010,12(12):2932-2937.
[18]  Wagner C, Adrian R. Cyanobacteria dominance:Quantifying the effects of climate change. Limnology and Oceanography, 2009,54(6):2460-2468.
[19]  孔繁翔,高光.大型浅水富营养化湖泊中蓝藻水华形成机理的思考.生态学报,2005,25(3):589-595.
[20]  赵颖,张永春.流动水体下的温度对铜绿微囊藻生长的影响.污染防治技术,2008,21(2):39-41.
[21]  郑忠明,白培峰,陆开宏.铜绿微囊藻和四尾栅藻在不同温度下的生长特性及竞争参数计算.水生生物学报,2008,32(5):720-727.
[22]  Lürling M, Eshetu F, Faassen EJ et al. Comparison of cyanobacterial and green algal growth rates at different temperatures. Freshwater Biology, 2013,58(3):552-559.
[23]  Coles JF, Jones RC. Effect of temperature on photosynthesis-light response and growth of four phytoplankton species isolated from a tidal freshwater river. Journal of Phycology, 2000,36(1):7-16.
[24]  李小龙,耿亚红,李夜光等.从光合作用特性看铜绿微囊藻的竞争优势.武汉植物学研究,2006,24(3):225-230.
[25]  金相灿,储昭升,杨波.温度对水华微囊藻及孟氏浮游蓝丝藻生长、光合作用及浮力变化的影响.环境科学学报,2008,28(1):50-55.
[26]  Kolber Z, Zehr J, Falkowski PG. Effects of growth irradiance and nitrogen limitation on photosynthesis energy conversion in photosystemⅡ. Plant Physiology, 1988,88(3):923-929.
[27]  吴晓东,孔繁翔,曹焕生等.越冬浮游植物光合作用活性的原位研究.湖泊科学,2007,19(2):139-145.
[28]  Meis S, Thackeray SJ, Jones ID. Effects of recent climate change on phytoplankton phenology in a temperate lake. Freshwater Biology, 2009,54(8):1888-1898.
[29]  Adrian R, Deneke R, Mischke U et al. A long-term study of the Heiligensee (1975-1992). Evidence for effects of climatic change on the dynamics of eutrophied lake ecosystems. Archiv für Hydrobiologie, 1995,133(3):315-337.
[30]  Weyhenmeyer GA. Warmer winters:are planktonic algal populations in Sweden\'s largest lakes affected? AMBIO:A Journal of the Human Environment, 2001,30(8):565-571.
[31]  商兆堂,任健,秦铭荣等.气候变化与太湖蓝藻暴发的关系.生态学杂志,2010,29(1):55-61.

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