Please use this identifier to cite or link to this item: https://doi.org/10.1007/s00338-020-01902-0
Title: The contribution of stress-tolerant endosymbiotic dinoflagellate Durusdinium to Pocillopora acuta survival in a highly urbanized reef system
Authors: Poquita-Du R.C. 
Huang D. 
Chou L.M. 
Todd P.A. 
Keywords: Endosymbionts
Functional profiling
Gene expression
Holobiont
RNA-Seq
Symbiodiniaceae
Issue Date: 2020
Publisher: Springer
Citation: Poquita-Du R.C., Huang D., Chou L.M., Todd P.A. (2020). The contribution of stress-tolerant endosymbiotic dinoflagellate Durusdinium to Pocillopora acuta survival in a highly urbanized reef system. Coral Reefs. ScholarBank@NUS Repository. https://doi.org/10.1007/s00338-020-01902-0
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Related Datasets: https://doi.org/10.5281/zenodo.3514687
Abstract: Urban coral reefs are regarded as marginal communities that live under localized conditions considered detrimental for coral survival, such as high sediment load. They are also impacted by global environmental changes, especially increases in sea surface temperatures. These conditions can cause sub-optimal performance and may lead to dissociation of the mutualistic symbiosis between the coral host and its endosymbionts (Symbiodiniaceae), which provide the majority of the coral’s daily energy budget. While recent studies have explored gene transcriptional responses to extreme conditions using cultured cells of Symbiodiniaceae, it is generally unknown how their responses manifest in hospite. Here, we investigate differential gene expression of endosymbionts hosted by the common reef-building coral Pocillopora acuta, following separate and combined exposures to two major environmental stressors: heat and sediment. We report that Durusdinium largely dominate the Symbiodiniaceae population in P. acuta, which suggests that the observed differential gene expression patterns are mainly responses from this known stress-tolerant endosymbiont genus. Differentially expressed genes were detected in response to heat, and to combined heat and sediment. These genes are associated with various biological processes including apoptosis, cell proliferation, cell–extracellular matrix adhesion, DNA damage repair, lipid catabolism, and lipid homeostasis. Our study provides valuable insights regarding the role of gene regulation by the endosymbiotic dinoflagellates to help maintain health and function of the coral host, which ultimately contributes to the persistence of P. acuta in Singapore’s highly urbanized reefs.
Source Title: Coral Reefs
URI: https://scholarbank.nus.edu.sg/handle/10635/167871
ISBN: 0722-4028
ISSN: 07224028
DOI: 10.1007/s00338-020-01902-0
Rights: Attribution-NonCommercial-NoDerivatives 4.0 International
Appears in Collections:Staff Publications
Elements

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
PoquitaDu et al 2020 The contribution of stress_tolerant endosymbiotic dinoflagellate Durusdinium to Pocillopora acuta survival in a highly urbanized reef system.pdf559.81 kBAdobe PDF

OPEN

NoneView/Download

SCOPUSTM   
Citations

4
checked on Aug 5, 2020

Page view(s)

37
checked on Aug 6, 2020

Download(s)

1
checked on Aug 6, 2020

Google ScholarTM

Check

Altmetric


This item is licensed under a Creative Commons License Creative Commons