Ability of the marine diatoms Pseudo-nitzschia multiseries and P. pungens to inhibit the growth of co-occurring phytoplankton via allelopathy

CORC > 海洋研究所 > 中国科学院海洋研究所 > 海洋生态与环境科学重点实验室

	Ability of the marine diatoms Pseudo-nitzschia multiseries and P. pungens to inhibit the growth of co-occurring phytoplankton via allelopathy
	Xu, Ning 1; Tang, Ying Zhong 2,3; Qin, Junlian 1; Duan, Shunshan 1; Gobler, Christopher J.2
刊名	AQUATIC MICROBIAL ECOLOGY
	2015
卷号	74 期号:1 页码:29-41
关键词	Allelopathy Pseudo-nitzschia multiseries Pseudo-nitzschia pungens Harmful algal bloom (HAB) Competition Phytoplankton
英文摘要	Diatoms within the genus Pseudo-nitzschia can form near-monospecific blooms in both natural and iron-fertilized high-nutrient, low-chlorophyll (HNLC) regions and can have detrimental impacts on marine ecosystems. Here, we demonstrate the ability of P. pungens isolated from the South China Sea and 2 strains of P. multiseries isolated from the Bay of Fundy, Canada, to produce extracellular compounds capable of lysing and/or inhibiting the growth of multiple phytoplankton species. Since the allelopathic activity was found in both P. multiseries, which produces domoic acid (DA), and P. pungens, which produces little if any DA, the allelopathic effects of Pseudo-nitzschia spp. seem to be unrelated to this compound. Allelopathic inhibition of other phytoplankton was documented during exponential and stationary growth phases of Pseudonitzschia, and the strongest allelopathic effects were obtained from sonicated cultures, suggesting that the sudden release of allelochemicals via processes such as cell lysis or zooplankton grazing may have the strongest effect in an ecosystem setting. Differences in the responses of target species to Pseudo-nitzschia spp. suggest these algae may produce multiple compounds that vary in their allelopathic potency and composition as a function of species, strain, growth stage, and perhaps other factors. Collectively, these results suggest that the allelopathy may affect competition between Pseudo-nitzschia spp. and other phytoplankton and may play an important role in the formation and persistence of natural and iron-fertilized blooms.
收录类别	SCI
语种	英语
WOS记录号	WOS:000350090200003
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/25388]
专题	海洋研究所_海洋生态与环境科学重点实验室
作者单位	1.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China 2.SUNY Stony Brook, Sch Marine & Atmospher Sci, Stony Brook, NY 11794 USA 3.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Xu, Ning,Tang, Ying Zhong,Qin, Junlian,et al. Ability of the marine diatoms Pseudo-nitzschia multiseries and P. pungens to inhibit the growth of co-occurring phytoplankton via allelopathy[J]. AQUATIC MICROBIAL ECOLOGY,2015,74(1):29-41.
APA	Xu, Ning,Tang, Ying Zhong,Qin, Junlian,Duan, Shunshan,&Gobler, Christopher J..(2015).Ability of the marine diatoms Pseudo-nitzschia multiseries and P. pungens to inhibit the growth of co-occurring phytoplankton via allelopathy.AQUATIC MICROBIAL ECOLOGY,74(1),29-41.
MLA	Xu, Ning,et al."Ability of the marine diatoms Pseudo-nitzschia multiseries and P. pungens to inhibit the growth of co-occurring phytoplankton via allelopathy".AQUATIC MICROBIAL ECOLOGY 74.1(2015):29-41.