当前位置：
X-MOL 学术
›
ACS Earth Space Chem.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Calcifying Response and Recovery Potential of the Brown Alga Padina pavonica under Ocean Acidification
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2017-07-03 00:00:00 , DOI: 10.1021/acsearthspacechem.7b00051 David Iluz 1 , Simona Fermani 2 , Michal Ramot 1 , Michela Reggi 2 , Erik Caroselli 3 , Fiorella Prada 3 , Zvy Dubinsky 1 , Stefano Goffredo 3 , Giuseppe Falini 2
ACS Earth and Space Chemistry ( IF 2.9 ) Pub Date : 2017-07-03 00:00:00 , DOI: 10.1021/acsearthspacechem.7b00051 David Iluz 1 , Simona Fermani 2 , Michal Ramot 1 , Michela Reggi 2 , Erik Caroselli 3 , Fiorella Prada 3 , Zvy Dubinsky 1 , Stefano Goffredo 3 , Giuseppe Falini 2
Affiliation
|
Anthropogenic carbon dioxide (CO2) emissions are causing ocean acidification (OA), which affects calcifying organisms. Recent studies have shown that Padina pavonica investigated along a natural pCO2 gradient seems to acclimate to OA by reducing calcified structures and changing mineralogy from aragonite to calcium sulfate salts. The aim of the present study was to study the potential for acclimation of P. pavonica to OA along the same gradient and in aquaria under controlled conditions. P. pavonica was cross-transplanted for 1 week from a normal pH site (mean values of pHTS 8.1 and pCO2 = 391 μatm) to a low pH site (mean values of pHTS 7.4 and pCO2 = 1044 μatm) and vice versa. Results showed that this calcifying alga did survive under acute environmental pHTS changes but its calcification was significantly reduced. P. pavonica decalcified and changed mineralogy at pHTS 7.4, but once brought back at pHTS 8.1, it partially recovered the aragonite loss while preserving the calcium sulfate phases that formed under low pHTS. These results suggest that P. pavonica could be used as a bioindicator for monitoring OA as well as localized anthropogenic acidity fluctuations.
中文翻译：
海洋酸化作用下褐藻Padonica pavonica的响应响应和恢复潜力
人为造成的二氧化碳（CO 2）排放正在引起海洋酸化（OA），从而影响钙化生物。最近的研究表明，沿着自然pCO 2梯度进行研究的帕迪纳（Padina pavonica）似乎可以通过减少钙化结构并将矿物学从文石盐转变为硫酸钙盐来适应OA。本研究的目的是研究在可控条件下，在相同的梯度和水族馆中，P。pavonica适应OA的潜力。从正常pH位置（pH TS 8.1的平均值和pCO 2 = 391μatm的平均值）到低pH位置（pH TS的平均值）交叉移植pavonica 1周7.4，pCO 2 = 1044μatm），反之亦然。结果表明，这种钙化藻类在急性环境pH TS变化下确实可以生存，但其钙化作用却明显降低。P. pavonica在pH TS 7.4时会脱钙并改变矿物学，但在pH TS 8.1时恢复原状，部分恢复了文石损失，同时保留了在低pH TS下形成的硫酸钙相。这些结果表明，P。pavonica可用作监测OA和局部人为酸度波动的生物指示剂。
更新日期：2017-07-03
中文翻译：
海洋酸化作用下褐藻Padonica pavonica的响应响应和恢复潜力
人为造成的二氧化碳（CO 2）排放正在引起海洋酸化（OA），从而影响钙化生物。最近的研究表明，沿着自然pCO 2梯度进行研究的帕迪纳（Padina pavonica）似乎可以通过减少钙化结构并将矿物学从文石盐转变为硫酸钙盐来适应OA。本研究的目的是研究在可控条件下，在相同的梯度和水族馆中，P。pavonica适应OA的潜力。从正常pH位置（pH TS 8.1的平均值和pCO 2 = 391μatm的平均值）到低pH位置（pH TS的平均值）交叉移植pavonica 1周7.4，pCO 2 = 1044μatm），反之亦然。结果表明，这种钙化藻类在急性环境pH TS变化下确实可以生存，但其钙化作用却明显降低。P. pavonica在pH TS 7.4时会脱钙并改变矿物学，但在pH TS 8.1时恢复原状，部分恢复了文石损失，同时保留了在低pH TS下形成的硫酸钙相。这些结果表明，P。pavonica可用作监测OA和局部人为酸度波动的生物指示剂。
京公网安备 11010802027423号