Response of cellular stoichiometry and phosphorus storage of the cyanobacteria Aphanizomenon flos-aquae to small-scale turbulence

doi:10.1007/s00343-017-6178-2

CORC > 重庆绿色智能技术研究院 > 中国科学院重庆绿色智能技术研究院 > 水质生物转化研究中心

	Response of cellular stoichiometry and phosphorus storage of the cyanobacteria Aphanizomenon flos-aquae to small-scale turbulence
	Li Zhe; Xiao Yan; Yang Jixiang; Li Chao; Gao Xia; Guo Jinsong
刊名	CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY
	2017
卷号	35 期号:6 页码:1409-1416
ISSN号	0254-4059
DOI	10.1007/s00343-017-6178-2
通讯作者	Xiao, Y (reprint author), Chinese Acad Sci, CAS Key Lab Reservoir Water Environm, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China.
英文摘要	Turbulent mixing, in particular on a small scale, affects the growth of microalgae by changing diffusive sublayers and regulating nutrient fluxes of cells. We tested the nutrient flux hypothesis by evaluating the cellular stoichiometry and phosphorus storage of microalgae under different turbulent mixing conditions. Aphanizomenon flos-aquae were cultivated in different stirring batch reactors with turbulent dissipation rates ranging from 0.001 51 m(2)/s(3) to 0.050 58 m(2)/s(3), the latter being the highest range observed in natural aquatic systems. Samples were taken in the exponential growth phase and compared with samples taken when the reactor was completely stagnant. Results indicate that, within a certain range, turbulent mixing stimulates the growth of A. flos-aquae. An inhibitory effect on growth rate was observed at the higher range. Photosynthesis activity, in terms of maximum effective quantum yield of PSII (the ratio of F-v/F-m) and cellular chlorophyll a, did not change significantly in response to turbulence. However, Chl a/C mass ratio and C/N molar ratio, showed a unimodal response under a gradient of turbulent mixing, similar to growth rate. Moreover, we found that increases in turbulent mixing might stimulate respiration rates, which might lead to the use of polyphosphate for the synthesis of cellular constituents. More research is required to test and verify the hypothesis that turbulent mixing changes the diffusive sublayer, regulating the nutrient flux of cells.
语种	英语
WOS记录号	WOS:000415810900012
内容类型	期刊论文
源URL	[http://172.16.51.4:88/handle/2HOD01W0/125]
专题	水质生物转化研究中心机器人与3D打印技术创新中心
作者单位	(1) Chinese Acad Sci, CAS Key Lab Reservoir Water Environm, Chongqing Inst Green & Intelligent Technol, Chongqing 400714, Peoples R China; (2) East China Univ Sci & Technol, State Key Lab Bioreactor Engn, Coll Biotechnol, Shanghai 200237, Peoples R China
推荐引用方式 GB/T 7714	Li Zhe,Xiao Yan,Yang Jixiang,et al. Response of cellular stoichiometry and phosphorus storage of the cyanobacteria Aphanizomenon flos-aquae to small-scale turbulence[J]. CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2017,35(6):1409-1416.
APA	Li Zhe,Xiao Yan,Yang Jixiang,Li Chao,Gao Xia,&Guo Jinsong.(2017).Response of cellular stoichiometry and phosphorus storage of the cyanobacteria Aphanizomenon flos-aquae to small-scale turbulence.CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY,35(6),1409-1416.
MLA	Li Zhe,et al."Response of cellular stoichiometry and phosphorus storage of the cyanobacteria Aphanizomenon flos-aquae to small-scale turbulence".CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY 35.6(2017):1409-1416.