Stress response of Chlorella pyrenoidosa to nitro-aromatic compounds

doi:10.1007/s11356-014-3582-4

科研成果详情

题名	Stress response of Chlorella pyrenoidosa to nitro-aromatic compounds
作者	Xu，Chang 1,3; Wang，Ruihua 2; Zhang，Y. F.1; Cheng，P.1; Choi，Martin M.F.3; Poon，Karen 1
发表日期	2015-03-01
发表期刊	Environmental Science and Pollution Research
ISSN/eISSN	0944-1344
卷号	22 期号:5 页码:3784-3793
摘要	Handling of two nitro-aromatic compounds, 4-nitroaniline (4NA) and 4-nitrophenol (4NP), simultaneously by Chlorella pyrenoidosa was investigated. Algae would secrete or degrade nitro-aromatic compounds depending on different environmental conditions, in which the mode of handling was determined by the relative formation and degradation rate of the compound. Repeated intermittent trigger with externally added 4NA would induce the continuous secretion of 4NA by algae. Simultaneous exposure of both 4NA and 4NP to algae at normal condition would induce the algae to secrete both compounds. An increase in 4NA exposure concentration would elevate both 4NA and 4NP secretion, and that would be inhibited by the stress conditions of starving or lack of oxygen. Increased 4NA degradation per production rate induced by starving or lack of oxygen might explain the subsequent decrease in 4NA secretion in the presence of 4NP in algae. For 4NP in the presence of 4NA, secretion at normal condition was completely stopped and turned to degradation mode in stress conditions. The decreased formation and increased degradation of 4NP during starving for replenishing energy would explain the net degradation of 4NP in starving condition. The condition of lack of oxygen would inhibit the 4NP formation from 4NA via oxidative deamination, while the degradation of 4NP might not be significantly affected because alternative pathway of degradation via nitro-reduction was available. It may lead to the degradation rate exceeding the formation and explain the net degradation of 4NP in the condition of lack of oxygen.
关键词	4-Nitroaniline 4-Nitrophenol Chlorella pyrenoidosa Secondary metabolites Stress response
DOI	10.1007/s11356-014-3582-4
URL	查看来源
语种	英语English
Scopus入藏号	2-s2.0-84925487892
引用统计	被引频次：5[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://repository.uic.edu.cn/handle/39GCC9TT/6456
专题	北师香港浸会大学
通讯作者	Poon，Karen
作者单位	1.Program of Food Science and Technology,Division of Science and Technology,BNU-HKBU United International College,Zhuhai,28 Jinfeng Road, Tangjiawan,China 2.Department of Gastroenterology,Shanghai Jiao Tong University affiliated Sixth People’s Hospital South Campus,Fengxian District,6600 Nanfeng Road,China 3.Department of Chemistry,Hong Kong Baptist University,224 Waterloo Road, Kowloon Tong,Hong Kong
第一作者单位	北师香港浸会大学
通讯作者单位	北师香港浸会大学
推荐引用方式 GB/T 7714	Xu，Chang,Wang，Ruihua,Zhang，Y. F.et al. Stress response of Chlorella pyrenoidosa to nitro-aromatic compounds[J]. Environmental Science and Pollution Research, 2015, 22(5): 3784-3793.
APA	Xu，Chang, Wang，Ruihua, Zhang，Y. F., Cheng，P., Choi，Martin M.F., & Poon，Karen. (2015). Stress response of Chlorella pyrenoidosa to nitro-aromatic compounds. Environmental Science and Pollution Research, 22(5), 3784-3793.
MLA	Xu，Chang,et al."Stress response of Chlorella pyrenoidosa to nitro-aromatic compounds". Environmental Science and Pollution Research 22.5(2015): 3784-3793.