Responses of Ulva prolifera to short-term nutrient enrichment under light and dark conditions

doi:10.1016/j.ecss.2015.03.018

CORC > 自然资源部第一海洋研究所 > 自然资源部第一海洋研究所 > 业务部门 > 海洋生态研究中心

	Responses of Ulva prolifera to short-term nutrient enrichment under light and dark conditions
	Sun, Kai-Ming 1,2; Li, Ruixiang 2; Li, Yan 2; Xin, Ming 2; Xiao, Jie 2; Wang, Zongling 2; Tang, Xuexi 1; Pang, Min 2
	2015-09-20
关键词	Ulva prolifera uptake rate enzymatic activity tissue nutrient macroalgal bloom
卷号	163
DOI	10.1016/j.ecss.2015.03.018
页码	56-62
英文摘要	To define responses of short-term nutrient uptake in Ulva prolifera, we measured uptake rates, enzyme activity, and tissue nutrient content in lab experiments where we manipulated nutrient supply and irradiation. Nitrate uptake of U. prolifera was significantly impacted by the external nitrate concentrations, and ammonium uptake was mainly determined by the light availability. The measured nitrogen contents in tissues were higher than the calculated values from the uptake of dissolve inorganic nitrogen, indicating that U. prolifera might use multiple nitrogen sources. High external phosphate concentrations and sufficient light can accelerate the phosphate uptake of U. prolifera, while the measured phosphorus contents in tissues were lower than the calculated values from the uptake of phosphate, suggesting a possibility of internal phosphorus release. The enzymatic activities of nitrate reductase (NR), acid phosphatase (AcP) and alkaline phosphatase (AP) showed little changes, indicating that enzymatic activity might not a direct factor determining the short-term nutrient uptake of U. prolifera. (C) 2015 Published by Elsevier Ltd.
会议录	ESTUARINE COASTAL AND SHELF SCIENCE
会议录出版者	ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
会议录出版地	24-28 OVAL RD, LONDON NW1 7DX, ENGLAND
语种	英语
资助项目	MOST International S&T Cooperation Program[2010DFA24340]
WOS研究方向	Marine & Freshwater Biology ; Oceanography
WOS记录号	WOS:000362604700010
内容类型	会议论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/5068]
专题	业务部门_海洋生态研究中心
作者单位	1.Ocean Univ China, Coll Marine Life, Qingdao 266003, Peoples R China; 2.State Ocean Adm, Inst Oceanog 1, Qingdao 266061, Peoples R China
推荐引用方式 GB/T 7714	Sun, Kai-Ming,Li, Ruixiang,Li, Yan,et al. Responses of Ulva prolifera to short-term nutrient enrichment under light and dark conditions[C]. 见:.