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The increasing aluminum content affects the growth, cellular chlorophyll a and oxidation stress of cyanobacteria Synechococcus sp WH7803
Shi, Rongjun; Li, Gang; Zhou, Linbin; Liu, Jiaxing; Tan, Yehui; tanyh@scsio.ac.cn
2015
Source PublicationOCEANOLOGICAL AND HYDROBIOLOGICAL STUDIES
Volume44Issue:3Pages:343-351
AbstractEffects of marine aluminum (Al) on phytoplankton are controversial, making it important to elucidate the mechanisms underlying Al effects. This study was aimed at identifying the effects of Al on the growth, chlorophyll a (chl a) content and the antioxidant mechanism of cyanobacteria Synechococcus sp. WH7803. The growth rate increased from 0.33 to 0.52 d(-1) in media with the increasing Al concentration from 0.2 (control) to 20 mu mol l(-1) and almost saturated to 0.44 d(-1) at similar to 0.5 mu mol Al l(-1). The higher growth resulted in the higher biomass in both stationary and decay phases in the conditions of higher Al content. Chl a per cell reached 10.19 mu g cell(-1) in the exponential phase at 20 mu mol Al l(-1), approximately 1.6 and 3.1 times higher than those in stationary and decay phases, respectively, and chl a per cell showed a similar pattern as a growth rate when plotted with Al content. Al addition increased the cellular methane dicarboxylic aldehyde (MDA) content in the exponential phase and decreased the superoxide dismutase (SOD) activity in the decay phase. In particular, our results indicated a positive relationship between chl a per cell and the growth rate, suggesting the stimulation of increasing Al on the growth of Synechococcus is related to the enhancement of cellular chl a content.
Department[Shi, Rongjun; Li, Gang; Zhou, Linbin; Liu, Jiaxing; Tan, Yehui] Chinese Acad Sci, South China Sea Inst Oceanol, CAS Key Lab Trop Marine Bioresources & Ecol, Guangzhou 510301, Guangdong, Peoples R China; [Shi, Rongjun; Li, Gang; Zhou, Linbin; Liu, Jiaxing; Tan, Yehui] Chinese Acad Sci, South China Sea Inst Oceanol, Guangdong Prov Key Lab Appl Marine Biol, Guangzhou 510301, Guangdong, Peoples R China; [Shi, Rongjun; Liu, Jiaxing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China ; LTO
KeywordAluminum Synechococcus Growth Cellular Chl a Content Oxidative Stress
Subject AreaMarine & Freshwater Biology ; Oceanography
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/14920
Collection热带海洋环境国家重点实验室(LTO)
Corresponding Authortanyh@scsio.ac.cn
Recommended Citation
GB/T 7714
Shi, Rongjun,Li, Gang,Zhou, Linbin,et al. The increasing aluminum content affects the growth, cellular chlorophyll a and oxidation stress of cyanobacteria Synechococcus sp WH7803[J]. OCEANOLOGICAL AND HYDROBIOLOGICAL STUDIES,2015,44(3):343-351.
APA Shi, Rongjun,Li, Gang,Zhou, Linbin,Liu, Jiaxing,Tan, Yehui,&tanyh@scsio.ac.cn.(2015).The increasing aluminum content affects the growth, cellular chlorophyll a and oxidation stress of cyanobacteria Synechococcus sp WH7803.OCEANOLOGICAL AND HYDROBIOLOGICAL STUDIES,44(3),343-351.
MLA Shi, Rongjun,et al."The increasing aluminum content affects the growth, cellular chlorophyll a and oxidation stress of cyanobacteria Synechococcus sp WH7803".OCEANOLOGICAL AND HYDROBIOLOGICAL STUDIES 44.3(2015):343-351.
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