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
发表期刊OCEANOLOGICAL AND HYDROBIOLOGICAL STUDIES
卷号44期号:3页码:343-351
文章类型1730-413X
摘要Effects 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.
部门归属[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
关键词Aluminum Synechococcus Growth Cellular Chl a Content Oxidative Stress
学科领域Marine & Freshwater Biology ; Oceanography
收录类别SCI
文献类型期刊论文
条目标识符http://ir.scsio.ac.cn/handle/344004/15033
专题热带海洋环境国家重点实验室(LTO)
通讯作者tanyh@scsio.ac.cn
推荐引用方式
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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