干旱区生态环境知识资源中心(Arid): Desert dust deposition supplies essential bioelements to Red Sea corals

Arid

DOI	10.1111/gcb.16074
	Desert dust deposition supplies essential bioelements to Red Sea corals
	Blanckaert, Alice C. A.; Omanovic, Dario; Fine, Maoz; Grover, Renaud; Ferrier-Pages, Christine
通讯作者	Blanckaert, ACA (corresponding author)，Ctr Sci Monaco, Coral Ecophysiol Team, 8 Quai Antoine 1er, MC-98000 Monaco, Monaco.
来源期刊	GLOBAL CHANGE BIOLOGY
ISSN	1354-1013
EISSN	1365-2486
出版年	2022-01
英文摘要	Climate change-related increase in seawater temperature has become a leading cause of coral bleaching and mortality. However, corals from the northern Red Sea show high thermal tolerance and no recorded massive bleaching event. This specific region is frequently subjected to intense dust storms, coming from the surrounding arid deserts, which are expected to increase in frequency and intensity in the future. The aerial dust deposition supplies essential bioelements to the water column. Here, we investigated the effect of dust deposition on the physiology of a Red Sea coral, Stylophora pistillata. We measured the modifications in coral and Symbiodiniaceae metallome (cellular metal content), as well as the changes in photosynthesis and oxidative stress status of colonies exposed during few weeks to dust deposition. Our results show that 1 mg L-1 of dust supplied nanomolar amounts of nitrate and other essential bioelements, such as iron, manganese, zinc and copper, rapidly assimilated by the symbionts. At 25 degrees C, metal bioaccumulation enhanced the chlorophyll concentration and photosynthesis of dust-exposed corals compared to control corals. These results suggest that primary production was limited by metal availability in seawater. A 5 degrees C increase in seawater temperature enhanced iron assimilation in both control and dust-enriched corals. Temperature rise increased the photosynthesis of control corals only, dust-exposed ones having already reached maximal photosynthesis rates at 25 degrees C. Finally, we observed a combined effect of temperature and bioelement concentration on the assimilation of molybdenum, cadmium, manganese and copper, which were in higher concentrations in symbionts of dust-exposed corals maintained at 30 degrees C. All together these observations highlight the importance of dust deposition in the supply of essential bioelements, such as iron, to corals and its role in sustaining coral productivity in Red Sea reefs.
英文关键词	coral dust deposition ionomics metal Red Sea symbiosis
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000743735100001
WOS关键词	TRACE-METALS ; LIPID-PEROXIDATION ; ATMOSPHERIC DEPOSITION ; STYLOPHORA-PISTILLATA ; CLIMATE-CHANGE ; IRON ; AQABA ; GULF ; NUTRIENT ; ZINC
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377123
作者单位	[Blanckaert, Alice C. A.; Ferrier-Pages, Christine] Ctr Sci Monaco, Coral Ecophysiol Team, 8 Quai Antoine 1er, MC-98000 Monaco, Monaco; [Blanckaert, Alice C. A.] Sorbonne Univ, Coll Doctoral, Paris, France; [Omanovic, Dario] Rudjer Boskovic Inst, Ctr Marine & Environm Res, Zagreb, Croatia; [Fine, Maoz] Bar Ilan Univ, Goodman Fac Life Sci, Ramat Gan, Israel; [Fine, Maoz] Interuniv Inst Marine Sci, Elat, Israel
推荐引用方式 GB/T 7714	Blanckaert, Alice C. A.,Omanovic, Dario,Fine, Maoz,et al. Desert dust deposition supplies essential bioelements to Red Sea corals[J],2022.
APA	Blanckaert, Alice C. A.,Omanovic, Dario,Fine, Maoz,Grover, Renaud,&Ferrier-Pages, Christine.(2022).Desert dust deposition supplies essential bioelements to Red Sea corals.GLOBAL CHANGE BIOLOGY.
MLA	Blanckaert, Alice C. A.,et al."Desert dust deposition supplies essential bioelements to Red Sea corals".GLOBAL CHANGE BIOLOGY (2022).