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| Underwater spectra of Lake Taihu in summer and influences of chromatic light on Microcystis colonies |
| TAN Xiao1, LIU Qian-qian1, DUAN Zhi-peng1, LI Nie-gui2 |
1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lake of Ministry of Education, College of Environment, Hohai University, Nanjing 210098, China;
2. Nanjing Automation Institute of Water Conservancy and Hydrology, Nanjing 210012, China |
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Abstract Indoor simulation experiments of different chromatic light (red light, blue light, and white light) were designed based on the underwater spectra of sampling sites at Meiliang Bay (M1, M2) and Gonghu Bay (G1, G2) during summer blooms, so as to investigate effects of chromatic light on the growth and colony maintenance of Microcystis. Results showed that the background turbidity at sampling sites was relatively high, and the underwater spectra shifted to the band of yellow and red light. Results of indoor simulation experiment showed that Microcystis colonies of red light group were larger than those of blue light group and white light control after 24days. Data showed that red light was favorable to increase the content of polysaccharides (total polysaccharides and binding extracellular polysaccharides). As for Microcystis aeruginosa unicells (FACHB-469), cell concentration of white light control kept the highest level, followed by the red light group, and then the blue light group. Based on the field observation and indoor simulation, the underwater spectra at sampling sites were favorable for maintaining of Microcystis colony size and growth rate, which may possibly result in the differences of habitat heterogeneity between outdoor colonial Microcystis and indoor unicellular Microcystis. Changes of underwater spectra can influence the formation and maintenance of Microcystis colonies.
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Received: 04 May 2017
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| [1] |
潘继征,熊飞,李文朝,等.云南抚仙湖透明度的时空变化及影响因子分析[J]. 湖泊科学, 2008,20(5):681-686.
|
| [2] |
张运林,秦伯强,陈伟民,等.太湖水体光学衰减系数的分布及其变化特征[J]. 水科学进展, 2003,14(4):447-453.
|
| [3] |
张运林,秦伯强,陈伟民.水下光场及其影响机制的水槽模拟实验研究[J]. 自然科学进展, 2004,14(7):792-798.
|
| [4] |
Robarts R D, Zohary T. Microcystis aeruginosa and underwater light attenuation in a hypertrophic lake (Hartbeespoort Dam, South Africa)[J]. The Journal of Ecology, 1984,72(3):1001-1017.
|
| [5] |
Kirk J T O. Light and photosynthesis in aquatic ecosystems[M]. Cambridge University Press, 1994:252-266.
|
| [6] |
Falkowski P G, Katz M E, Knoll A H, et al. The evolution of modern eukaryotic phytoplankton[J]. Science, 2004,305(5682):354-360.
|
| [7] |
刘晶,刘文清,赵南京,等.浮游植物在不同光质和光强激发下的叶绿素荧光特性[J]. 光学学报, 2013,33(9):0930001.
|
| [8] |
Wang C Y, Fu C C, Liu Y C. Effects of using light-emitting diodes on the cultivation of Spirulina platensis[J]. Biochemical Engineering Journal, 2007,37(1):21-25.
|
| [9] |
王伟.光质对中华盒形藻生长及生化组成的影响[J]. 武汉植物学研究, 1999,17(3):6-9.
|
| [10] |
Wu Z, Gan N, Huang Q, et al. Response of Microcystis to copper stress-do phenotypes of Microcystis make a difference in stress tolerance?[J]. Environmental Pollution, 2007,147(2):324-330.
|
| [11] |
许慧萍,杨桂军,周健,等.氮、磷浓度对太湖水华微囊藻(Microcystis flos-aquae)群体生长的影响[J]. 湖泊科学, 2014,26(2):213-220.
|
| [12] |
Zapomělová E, Hrouzek P, ?eháková K, et al. Morphological variability in selected heterocystous cyanobacterial strains as a response to varied temperature, light intensity and medium composition[J]. Folia Microbiologica, 2008,53(4):333-341.
|
| [13] |
肖艳,甘南琴,郑凌凌,等.光强对微囊藻群体形态的影响及其生理机制研究[J]. 水生生物学报, 2014,38(1):35-42.
|
| [14] |
Shen H, Niu Y, Xie P, et al. Morphological and physiological changes in Microcystis aeruginosa as a result of interactions with heterotrophic bacteria[J]. Freshwater Biology, 2011,56(6):1065-1080.
|
| [15] |
Burkert U, Hyenstrand P, Drakare S, et al. Effects of the mixotrophic flagellate Ochromonas sp. on colony formation in Microcystis aeruginosa[J]. Aquatic Ecology, 2001,35(1):11-17.
|
| [16] |
Stomp M, Huisman J, Vörös L, et al. Colourful coexistence of red and green picocyanobacteria in lakes and seas[J]. Ecology Letters, 2007,10(4):290-298.
|
| [17] |
孙千千,朱伟,李明.太湖贡湖湾和梅梁湾微囊藻群落的时空分布及其驱动因子[J]. 湖泊科学, 2015,27(5):865-872.
|
| [18] |
Joung S, Kim C, Ahn C, et al. Simple method for a cell count of the colonial cyanobacterium, Microcystis sp.[J]. Joural of Microbiology-seoul, 2006,44(5):562.
|
| [19] |
Pavasant P, Apiratikul R, Sungkhum V, et al. Biosorption of Cu2+, Cd2+, Pb2+, and Zn2+ using dried marine green macroalga Caulerpa lentillifera[J]. Bioresource Technology, 2006,97(18):2321-2329.
|
| [20] |
Zhu W, Li M, Luo Y, et al. Vertical distribution of Microcystis colony size in Lake Taihu:its role in algal blooms[J]. Journal of Great Lakes Reserch, 2014,40(4):949-955.
|
| [21] |
Sorek M, Levy O. Influence of the quantity and quality of light on photosynthetic periodicity in coral endosymbiotic algae[J]. PLOS One, 2012,7(8):e43264.
|
| [22] |
Aguilera J, Francisco J, Gordillo L, et al. Light quality effect on photosynthesis and efficiency of carbon assimilation in the red alga Porphyra leucosticte[J]. Journal of Plant Physiology, 2000, 157(1):86-92.
|
| [23] |
Figueroa F L, Aguilera J, Jiménez C, et al. Growth, pigment synthesis and nitrogen assimilation in the red alga Porphyra sp. (Bangiales, Rhodophyta) under blue and red light[J]. Scientia Marina, 1995,59(1):9-20.
|
| [24] |
代晓炫,朱伟,李明.营养盐对微囊藻细胞组分及多糖组成的影响[J]. 湖泊科学, 2013,25(2):277-282.
|
| [25] |
Li M, Zhu W, Gao L, et al. Changes in extracellular polysaccharide content and morphology of Microcystis aeruginosa at different specific growth rates[J]. Journal of Applied Phycology, 2013,25(4):1023-1030.
|
| [26] |
Wang C, Kong H, He S, et al. The inverse correlation between growth rate and cell carbohydrate content of Microcystis aeruginosa[J]. Journal of Applied Phycology, 2010,22(1):105-107.
|
| [27] |
Xu H, Jiang H, Yu G, et al. Towards understanding the role of extracellular polymeric substances in cyanobacterial Microcystis aggregation and mucilaginous bloom formation[J]. Chemosphere, 2014,117:815-822.
|
| [28] |
沈银武,朱运芝,刘永定.不同光质对中华植生藻的影响[J]. 水生生物学报, 1999,23(3):285-287.
|
| [29] |
张爱琴,姜泉,谢小军,等.不同光质对钝顶螺旋藻生长和放氧放氢活性的影响[J]. 植物生理学通讯, 1989,4(1):23-26.
|
| [30] |
Aidar E, Gianesella-Galvão S M F, Sigaud T C S, et al. Effects of light quality on growth, biochemical composition and photosynthetic production in Cyclotella caspia Grunow and Tetraselmis gracilis (Kylin) Butcher[J]. Journal of Experimental Marine Biology and Ecology, 1994,180(2):175-187.
|
| [31] |
Sánchez-Saavedra M P, Maeda-Martínez A N, Acosta-Galindo S. Effect of different light spectra on the growth and biochemical composition of Tisochrysis lutea[J]. Journal of Applied Phycology, 2016,28(2):839-847.
|
| [32] |
苗洪利,孙丽娜,田庆震,等.LED单色光谱及复合光谱对赤潮优势种中肋骨条藻生长的作用[J]. 中国海洋大学学报(自然科学版), 2011,41(10):107-110.
|
| [33] |
Han P, Sun Y, Jia S, et al. Effects of light wavelengths on extracellular and capsular polysaccharide production by Nostoc flagelliforme[J]. Carbohydrate Polymers, 2014,105:145-151.
|
| [34] |
You T, Barnett S M. Effect of light quality on production of extracellular polysaccharides and growth rate of Porphyridium cruentum[J]. Biochemical Engineering Journal, 2004,19(3):251-258.
|
| [35] |
唐青青,方治国,嵇雯雯,等.光质对蛋白核小球藻(Chlorella pyrenoidosa)生长特征及生化组成的影响研究[J]. 环境科学, 2014,35(11):4212-4217.
|
| [36] |
Markou G. Effect of various colors of light-emitting diodes (LEDs) on the biomass composition of Arthrospira platensis cultivated in semi-continuous mode[J]. Applied Biochemistry and Biotechnology, 2014,172(5):2758-2768.
|
| [37] |
庄树宏.光强和光质对底栖藻类群落影响Ⅱ群落和种群的动态和适应模式[J]. 生态学报, 2001,21(12):2057-2066.
|
| [38] |
俞茜,刘昭伟,陈永灿,等.微囊藻属一日内垂向分布的数值模拟[J]. 中国环境科学, 2015,35(6):1840-1846.
|
|
|
|
