气候变化领域集成服务门户(CCPortal): Effect of marine heatwaves and warming on kelp microbiota influence trophic interactions

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DOI	10.1111/mec.17267
	Effect of marine heatwaves and warming on kelp microbiota influence trophic interactions
	Castro, Louise C.; Verges, Adriana; Straub, Sandra C.; Campbell, Alexandra H.; Coleman, Melinda A.; Wernberg, Thomas; Steinberg, Peter; Thomas, Torsten; Dworjanyn, Symon; Cetina-Heredia, Paulina; Roughan, Moninya; Marzinelli, Ezequiel M.
发表日期	2024
ISSN	0962-1083
EISSN	1365-294X
起始页码	33
结束页码	5
卷号	33 期号:5
英文摘要	The range-expansion of tropical herbivores due to ocean warming can profoundly alter temperate reef communities by overgrazing the seaweed forests that underpin them. Such ecological interactions may be mediated by changes to seaweed-associated microbiota in response to warming, but empirical evidence demonstrating this is rare. We experimentally simulated ocean warming and marine heatwaves (MHWs) to quantify effects on two dominant temperate seaweed species and their microbiota, as well as grazing by a tropical herbivore. The kelp Ecklonia radiata's microbiota in sustained warming and MHW treatments was enriched with microorganisms associated with seaweed disease and tissue degradation. In contrast, the fucoid Sargassum linearifolium's microbiota was unaffected by temperature. Consumption by the tropical sea-urchin Tripneustes gratilla was greater on Ecklonia where the microbiota had been altered by higher temperatures, while Sargassum's consumption was unaffected. Elemental traits (carbon, nitrogen), chemical defences (phenolics) and tissue bleaching of both seaweeds were generally unaffected by temperature. Effects of warming and MHWs on seaweed holobionts (host plus its microbiota) are likely species-specific. The effect of increased temperature on Ecklonia's microbiota and subsequent increased consumption suggest that changes to kelp microbiota may underpin kelp-herbivore interactions, providing novel insights into potential mechanisms driving change in species' interactions in warming oceans.
英文关键词	climate change; Ecklonia radiata; macroalgae; microbiome; Sargassum linearifolium; tropicalisation
语种	英语
WOS研究方向	Biochemistry & Molecular Biology ; Environmental Sciences & Ecology ; Evolutionary Biology
WOS类目	Biochemistry & Molecular Biology ; Ecology ; Evolutionary Biology
WOS记录号	WOS:001143950600001
来源期刊	MOLECULAR ECOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/295226
作者单位	University of New South Wales Sydney; University of New South Wales Sydney; University of New South Wales Sydney; Sydney Institute of Marine Science; University of Western Australia; University of Western Australia; University of the Sunshine Coast; Nanyang Technological University; Southern Cross University; Southern Cross University; University of Sydney; University of Sydney
推荐引用方式 GB/T 7714	Castro, Louise C.,Verges, Adriana,Straub, Sandra C.,et al. Effect of marine heatwaves and warming on kelp microbiota influence trophic interactions[J],2024,33(5).
APA	Castro, Louise C..,Verges, Adriana.,Straub, Sandra C..,Campbell, Alexandra H..,Coleman, Melinda A..,...&Marzinelli, Ezequiel M..(2024).Effect of marine heatwaves and warming on kelp microbiota influence trophic interactions.MOLECULAR ECOLOGY,33(5).
MLA	Castro, Louise C.,et al."Effect of marine heatwaves and warming on kelp microbiota influence trophic interactions".MOLECULAR ECOLOGY 33.5(2024).