The increasing aluminum content affects the growth, cellular chlorophyll a and oxidation stress of cyanobacteria Synechococcus sp WH7803
文献类型:期刊论文
作者 | Shi, Rongjun; Li, Gang; Zhou, Linbin; Liu, Jiaxing; Tan, Yehui |
刊名 | OCEANOLOGICAL AND HYDROBIOLOGICAL STUDIES
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出版日期 | 2015 |
卷号 | 44期号:3页码:343-351 |
关键词 | Aluminum Synechococcus growth cellular chl a content oxidative stress |
通讯作者 | tanyh@scsio.ac.cn |
中文摘要 | 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. |
学科主题 | Marine & Freshwater Biology; Oceanography |
源URL | [http://ir.scsio.ac.cn/handle/344004/14920] ![]() |
专题 | 南海海洋研究所_热带海洋环境国家重点实验室(LTO) |
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.(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. |
入库方式: OAI收割
来源:南海海洋研究所
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