globalchange  > 影响、适应和脆弱性
DOI: 10.1111/gcb.13350
论文题名:
Near-future pH conditions severely impact calcification, metabolism and the nervous system in the pteropod Heliconoides inflatus
作者: Moya A.; Howes E.L.; Lacoue-Labarthe T.; Forêt S.; Hanna B.; Medina M.; Munday P.L.; Ong J.-S.; Teyssié J.-L.; Torda G.; Watson S.-A.; Miller D.J.; Bijma J.; Gattuso J.-P.
刊名: Global Change Biology
ISSN: 13541013
出版年: 2016
卷: 22, 期:12
起始页码: 3888
结束页码: 3900
语种: 英语
英文关键词: calcification ; GABAA receptor ; gene expression ; global change biology ; nervous system ; ocean acidification ; pteropods ; respiration ; RNA sequencing
Scopus关键词: acidification ; calcification ; gastropod ; gene expression ; global change ; metabolism ; nervous system ; pH ; respiration ; RNA ; Animalia ; Pteropoda ; animal ; animal shell ; bone mineralization ; carbon cycle ; ecosystem ; food chain ; gastropod ; metabolism ; nervous system ; pH ; physiology ; Animal Shells ; Animals ; Calcification, Physiologic ; Carbon Cycle ; Ecosystem ; Food Chain ; Gastropoda ; Hydrogen-Ion Concentration ; Nervous System
英文摘要: Shelled pteropods play key roles in the global carbon cycle and food webs of various ecosystems. Their thin external shell is sensitive to small changes in pH, and shell dissolution has already been observed in areas where aragonite saturation state is ~1. A decline in pteropod abundance has the potential to disrupt trophic networks and directly impact commercial fisheries. Therefore, it is crucial to understand how pteropods will be affected by global environmental change, particularly ocean acidification. In this study, physiological and molecular approaches were used to investigate the response of the Mediterranean pteropod, Heliconoides inflatus, to pH values projected for 2100 under a moderate emissions trajectory (RCP6.0). Pteropods were subjected to pHT 7.9 for 3 days, and gene expression levels, calcification and respiration rates were measured relative to pHT 8.1 controls. Gross calcification decreased markedly under low pH conditions, while genes potentially involved in calcification were up-regulated, reflecting the inability of pteropods to maintain calcification rates. Gene expression data imply that under low pH conditions, both metabolic processes and protein synthesis may be compromised, while genes involved in acid–base regulation were up-regulated. A large number of genes related to nervous system structure and function were also up-regulated in the low pH treatment, including a GABAA receptor subunit. This observation is particularly interesting because GABAA receptor disturbances, leading to altered behavior, have been documented in several other marine animals after exposure to elevated CO2. The up-regulation of many genes involved in nervous system function suggests that exposure to low pH could have major effects on pteropod behavior. This study illustrates the power of combining physiological and molecular approaches. It also reveals the importance of behavioral analyses in studies aimed at understanding the impacts of low pH on marine animals. © 2016 John Wiley & Sons Ltd
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/61240
Appears in Collections:影响、适应和脆弱性

Files in This Item:

There are no files associated with this item.


作者单位: ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, Qld, Australia; UPMC Univ Paris 06, CNRS-INSU, Laboratoire d'Océanographie de Villefranche, Sorbonne Universités, 181 chemin du Lazaret, Villefranche-sur-mer, France; Marine Biogeosciences, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar-und Meeresforschung, Am Handelshafen 12, Bremerhaven, Germany; Sciences Po, Institute for Sustainable Development and International Relations, 27 rue Saint Guillaume, Paris, France; Littoral, Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, La Rochelle Cedex, France; Marine Environmental Laboratories, International Atomic Energy Agency, 4 quai Antoine 1er, Monaco, Monaco; Research School of Biology, Australian National University, Canberra, ACT, Australia; Department of Biology, Penn State University, University Park, PA, United States; Australian Institute of Marine Science, PMB 3, Townsville, Qld, Australia; Comparative Genomics Centre and Department of Molecular and Cell Biology, James Cook University, Townsville, Qld, Australia

Recommended Citation:
Moya A.,Howes E.L.,Lacoue-Labarthe T.,et al. Near-future pH conditions severely impact calcification, metabolism and the nervous system in the pteropod Heliconoides inflatus[J]. Global Change Biology,2016-01-01,22(12)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Moya A.]'s Articles
[Howes E.L.]'s Articles
[Lacoue-Labarthe T.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Moya A.]'s Articles
[Howes E.L.]'s Articles
[Lacoue-Labarthe T.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Moya A.]‘s Articles
[Howes E.L.]‘s Articles
[Lacoue-Labarthe T.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.