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| Rouze, Heloise; Lecellier, Gael J.; Saulnier, Denis; Planes, Serge; Gueguen, Yannick; Wirshing, Herman H.; Berteaux-lecellier, Veronique. |
| The adaptative bleaching hypothesis (ABH) states that, depending on the symbiotic flexibility of coral hosts (i.e., the ability of corals to “switch” or “shuffle” their algal symbionts), coral bleaching can lead to a change in the composition of their associated Symbiodinium community and, thus, contribute to the coral’s overall survival. In order to determine the flexibility of corals, molecular tools are required to provide accurate species delineations and to detect low levels of coral-associated Symbiodinium. Here, we used highly sensitive quantitative (real-time) PCR (qPCR) technology to analyse five common coral species from Moorea (French Polynesia), previously screened using only traditional molecular methods, to assess the presence of... |
| Tipo: Text |
Palavras-chave: Corals; French polynesia; Clade B; Symbiodinium; QPCR; Flexibility; Generalist; Faithful clade. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00365/47652/47683.pdf |
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| Rouze, Heloise; Lecellier, Gael; Saulnier, Denis; Berteaux-lecellier, Veronique. |
| Coral disease outbreaks have increased over the last three decades, but their causal agents remain mostly unclear (e.g., bacteria, viruses, fungi, protists). This study details a 14-month-long survey of coral colonies in which observations of the development of disease was observed in nearly half of the sampled colonies. A bimonthly qPCR method was used to quantitatively and qualitatively evaluate Symbiodinium assemblages of tagged colonies, and to detect the presence of Vibrio spp. Firstly, our data showed that predisposition to disease development in general, and, more specifically, infection by Vibrio spp. in Acropora cytherea depended on which clades of Symbiodinium were harbored. In both cases, harboring clade D rather than A was beneficial to the... |
| Tipo: Text |
Palavras-chave: Coral disease; Dynamic; Resistance; Symbiodinium assemblages; Vibrio. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00307/41848/41080.pdf |
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