Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 海岸带生物学与生物资源利用重点实验室 > 海岸带生物学与生物资源利用所重点实验室

	Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum
	Yang, Cui Yun; Liu, Su Jing; Ma, Xuan Xuan; Zhou, Jun; Xia, Chuan Hai
刊名	CHEMISTRY AND ECOLOGY
	2012
卷号	28 期号:6 页码:524-534
关键词	ethyl 2-methyl acetoacetate marine microalgae initial algal density growth EC50
ISSN号	0275-7540
通讯作者	Xia, CH (reprint author), Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China.
产权排序	[Yang, Cui Yun; Liu, Su Jing; Ma, Xuan Xuan; Zhou, Jun; Xia, Chuan Hai] Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
英文摘要	We investigated the effects of ethyl 2-methyl acetoacetate (EMA) on growth of the marine diatom algae Phaeodactylum tricornutum (P. tricornutum) and Skeletonema costatum (S. costatum). Growth of P. tricornutum was significantly inhibited by the minimum concentration (3.5 mmol . L-1) of EMA at lower initial algal densities (IADs) (3.6 x 10(4) and 3.3 x 10(5) cells . mL(-1)). However, at the highest IAD, significant growth inhibition was found at above 7 mmol . L-1 of EMA exposure. In S. costatum, EMA concentrations of 10.5 mmol . L-1 or more significantly inhibited growth at lower IAD (3 x 10(4) and 1.8 x 10(5) cells . mL(-1)); at the highest IAD, only EMA concentrations above 14 mmol . L-1 obviously inhibited the growth of S. costatum. Changes in specific growth rates and pigment were consistent with algal growth, but only at higher EMA concentrations or lower IAD values was the ratio of chlorophyll a (Chla) to carotenoid significantly lower than the control. Medium effective concentration (EC50) values were in the order 4.07, 8.03 and 12.27 mmol . L-1 for P. tricornutum and 7.48, 11.92 and 17.22 mmol . L-1 for S. costatum. All these results show that the effect of EMA on the growth of algae was species specific and mainly depended on IAD, which might be an important factor to influence algal growth.
学科主题	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology
研究领域[WOS]	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology
关键词[WOS]	CYANOBACTERIUM MICROCYSTIS-AERUGINOSA ; ALGA SELENASTRUM-CAPRICORNUTUM ; STRAW HORDEUM-VULGARE ; PHRAGMITES-COMMUNIS ; ANTIOXIDANT SYSTEM ; OXIDATIVE DAMAGE ; FATTY-ACIDS ; INHIBITION ; RESPONSES ; BARLEY
收录类别	SCI
资助信息	Important Directional Projects in the Knowledge Innovation Program of the Chinese Academy of Sciences [KZCX2-YW-Q07-04]; National Science and Technology Support Program [2011BAC02B04]; CAS/SAFEA International Partnership Program for Creative Research Teams 'Representative environmental processes and resources effects in coastal zone', National Natural Science Foundation of China [40806048]
原文出处	http://dx.doi.org/10.1080/02757540.2012.696618
语种	英语
WOS记录号	WOS:000311454300003
公开日期	2013-03-08
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/6101]
专题	烟台海岸带研究所_海岸带生物学与生物资源利用所重点实验室
作者单位	Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai, Peoples R China
推荐引用方式 GB/T 7714	Yang, Cui Yun,Liu, Su Jing,Ma, Xuan Xuan,et al. Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum[J]. CHEMISTRY AND ECOLOGY,2012,28(6):524-534.
APA	Yang, Cui Yun,Liu, Su Jing,Ma, Xuan Xuan,Zhou, Jun,&Xia, Chuan Hai.(2012).Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum.CHEMISTRY AND ECOLOGY,28(6),524-534.
MLA	Yang, Cui Yun,et al."Effects of ethyl 2-methyl acetoacetate (EMA) on the growth of Phaeodactylum tricornutum and Skeletonema costatum".CHEMISTRY AND ECOLOGY 28.6(2012):524-534.