Coral calcifying fluid pH dictates response to ocean acidification

被引：109

作者：

Holcomb, M. ^{[1
,2
,3
,4
,5
]}

Venn, A. A. ^{[4
,5
]}

Tambutte, E. ^{[4
,5
]}

Tambutte, S. ^{[4
,5
]}

Allemand, D. ^{[4
,5
]}

Trotter, J. ^{[1
,2
]}

McCulloch, M. ^{[1
,2
,3
]}

机构：

[1] Univ Western Australia, Oceans Inst, Crawley, WA 6009, Australia

[2] Univ Western Australia, Sch Earth & Environm, Crawley, WA 6009, Australia

[3] Univ Western Australia, ARC Ctr Excellence Coral Reef Studies, Crawley, WA 6009, Australia

[4] Ctr Sci Monaco, Ctr Natl Rech Sci, MC-98000 Monaco, Monaco

[5] Ctr Sci Monaco, Ctr Natl Rech Sci, Lab Europe Assoc Biosensib 647, MC-98000 Monaco, Monaco

来源：

SCIENTIFIC REPORTS | 2014年 / 4卷

基金：

澳大利亚研究理事会;

关键词：

ARAGONITE SATURATION STATE; CALCIFICATION RESPONSE; SCLERACTINIAN CORALS; ASTRANGIA POCULATA; PARTIAL-PRESSURE; CO2; RESILIENCE; CALCIFIERS; SEAWATER; EXHIBIT;

D O I：

10.1038/srep05207

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Ocean acidification driven by rising levels of CO2 impairs calcification, threatening coral reef growth. Predicting how corals respond to CO2 requires a better understanding of how calcification is controlled. Here we show how spatial variations in the pH of the internal calcifying fluid (pH(cf)) in coral (Stylophora pistillata) colonies correlates with differential sensitivity of calcification to acidification. Coral apexes had the highest pH(cf) and experienced the smallest changes in pH(cf) in response to acidification. Lateral growth was associated with lower pH(cf) and greater changes with acidification. Calcification showed a pattern similar to pH(cf), with lateral growth being more strongly affected by acidification than apical. Regulation of pH(cf) is therefore spatially variable within a coral and critical to determining the sensitivity of calcification to ocean acidification.

引用

页数：4

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[1] Coral calcifying fluid pH dictates response to ocean acidification
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A. A. Venn
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D. Allemand
J. Trotter
M. McCulloch
[J]. Scientific Reports, 4
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[J]. SCIENTIFIC REPORTS, 2017, 7
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