Microbial community and transcriptional responses to increased temperatures in coral Pocillopora damicornis holobiont.

Environmental Microbiology
Jie LiSi Zhang

Abstract

A few studies have holistically examined successive changes in coral holobionts in response to increased temperatures. Here, responses of the coral host Pocillopora damicornis, its Symbiodiniaceae symbionts, and associated bacteria to increased water temperatures were investigated. High temperatures induced bleaching, but no coral mortality was observed. Transcriptome analyses showed that P. damicornis responded more quickly to elevated temperatures than its algal symbionts. Numerous genes putatively associated with apoptosis, exocytosis, and autophagy were upregulated in P. damicornis, suggesting that Symbiodiniaceae can be eliminated or expelled through these mechanisms when P. damicornis experiences heat stress. Furthermore, apoptosis in P. damicornis is presumably induced through tumour necrosis factor and p53 signalling and caspase pathways. The relative abundances of several coral disease-associated bacteria increased at 32°C, which may affect immune responses in heat-stressed corals and potentially accelerates the loss of algal symbionts. Additionally, consistency of Symbiodiniaceae community structures under heat stress suggests non-selective loss of Symbiodiniaceae. We propose that heat stress elicits interrelated resp...Continue Reading

References

Oct 5, 1990·Journal of Molecular Biology·S F AltschulD J Lipman
Apr 23, 2003·Marine Pollution Bulletin·A E Douglas
Jun 6, 2006·Molecular Biology and Evolution·Kisaburo Nagamune, L David Sibley
Nov 17, 2006·Environmental Microbiology·Leah ReshefEugene Rosenberg
Jan 24, 2007·Development Genes and Evolution·David Q MatusMark Q Martindale
May 10, 2007·PLoS Biology·John F BrunoAmy M Melendy
Dec 15, 2007·Science·O Hoegh-GuldbergM E Hatziolos
Jul 23, 2008·Proceedings of the National Academy of Sciences of the United States of America·E M SampayoO Hoegh-Guldberg
Sep 23, 2008·The Journal of Experimental Biology·Virginia M Weis
Nov 11, 2008·Marine Pollution Bulletin·David O Obura
Nov 22, 2008·Trends in Ecology & Evolution·Andrew H BairdShunichi Takahashi
Apr 7, 2009·Applied and Environmental Microbiology·Jean-Baptiste RainaDavid G Bourne
Nov 11, 2009·Molecular Ecology·Mauricio Rodriguez-LanettyOve Hoegh-Guldberg
Apr 13, 2010·Nature Methods·J Gregory CaporasoRob Knight
Aug 17, 2010·Bioinformatics·Robert C Edgar
Nov 5, 2010·Molecular Cancer Research : MCR·Ellen Margrethe HaugstenJørgen Wesche
May 17, 2011·Nature Biotechnology·Manfred G GrabherrAviv Regev
Jun 28, 2011·Bioinformatics·Robert C EdgarRob Knight
Sep 10, 2011·Bioinformatics·Tanja Magoč, Steven L Salzberg
Oct 7, 2011·Proceedings. Biological Sciences·Anthony J BellantuonoMauricio Rodriguez-Lanetty
Feb 22, 2012·Applied and Environmental Microbiology·Kimberley A LemaDavid G Bourne
Mar 6, 2012·Nature Methods·Ben Langmead, Steven L Salzberg
Jun 13, 2012·Microbiology and Molecular Biology Reviews : MMBR·Simon K DavyVirginia M Weis
Aug 31, 2012·Proceedings. Biological Sciences·Hollie M PutnamRuth D Gates
Dec 4, 2012·Nature Methods·Nicholas A BokulichJ Gregory Caporaso
Jan 9, 2013·Proceedings of the National Academy of Sciences of the United States of America·Daniel J BarshisStephen R Palumbi
Jan 11, 2013·The ISME Journal·David G BourneNicole Webster
Dec 1, 2011·Environmental Microbiology Reports·Raechel LittmanDavid G Bourne
Aug 6, 2013·Microbial Ecology·Hebelin CorreaRussell Kerr
Apr 4, 2014·Bioinformatics·Anthony M BolgerBjoern Usadel
Jun 14, 2014·Proceedings of the National Academy of Sciences of the United States of America·Steven D QuistadForest L Rohwer
Oct 25, 2014·The ISME Journal·Nedeljka RosicOve Hoegh-Guldberg
Nov 28, 2014·Microbiology and Molecular Biology Reviews : MMBR·Haiwei Luo, Mary Ann Moran
Dec 18, 2014·Genome Biology·Michael I LoveSimon Anders

❮ Previous
Next ❯

Citations


❮ Previous
Next ❯

Related Concepts

Related Feeds

Autophagy & Model Organisms

Autophagy is a cellular process that allows degradation by the lysosome of cytoplasmic components such as proteins or organelles. Here is the latest research on autophagy & model organisms

Apoptosis

Apoptosis is a specific process that leads to programmed cell death through the activation of an evolutionary conserved intracellular pathway leading to pathognomic cellular changes distinct from cellular necrosis