Topic
Acropora cerealis
About: Acropora cerealis is a research topic. Over the lifetime, 7 publications have been published within this topic receiving 43 citations. The topic is also known as: Staghorn coral.
Papers
TL;DR: In this article, the authors assess the recovery status of the reef ecosystem by estimating the percentage of Live Coral cover, Bleached coral cover, Dead coral with algae, Rubble, Sandy flat, Algal assemblage and other associated organisms.
Abstract: The Andaman and Nicobar Islands are one of the Union Territories of India, located in the eastern part of the Bay of Bengal. In 2010 summer, the increment in sea surface water temperature (up to 34°C) resulted in the bleaching of about 74% to 77% of corals in the South Andaman. During this event, coral species such as Acropora cerealis, A. humilis, Montipora sp., Favia pallida, Diploastrea sp., Goniopora sp. Fungia concinna, Gardineroseries sp., Porites sp., Favites abdita and Lobophyllia robusta were severely affected. This study is to assess the recovery status of the reef ecosystem by estimating the percentage of Live Coral cover, Bleached coral cover, Dead coral with algae, Rubble, Sandy flat, Algal assemblage and other associated organisms. The sedimentation rate (mg cm−2 d−1) and coral coverage (%) were assessed during this study period. The average sedimentation rate was ranged between 0.27 and 0.89 mg cm−2 d−1. The observed post bleaching recovery of coral cover was 21.1% at Port Blair Bay and 13.29% at Havelock Island. The mortality rate of coral cover due to this bleaching was estimated as 2.05% at Port Blair Bay and 9.82% at Havelock Island. Once the sea water temperature resumed back to the normal condition, most of the corals were found recovered.
33 citations
TL;DR: Coral bleaching is caused by complete or partial loss of coral endosymbionts in response to increased sea surface temperature and solar radiation and a thermal stress leads to formation of reactive oxygen species resulting in a disturbance of coral cell membranes.
13 citations
TL;DR: RNA-seq data were analyzed to identify differentially expressed genes in two coral species in response to high CO2 levels and found that most Ca2+ transporters were present in the calcium signaling pathway, which could be important in the CO2 regulation of coral calcification.
Abstract: Recent studies have indicated that various corals might have different degrees of resistance to elevated CO2 levels. However, the underlying molecular mechanism accounting for these differences is still poorly understood. In this study, RNA-seq data were analyzed to identify differentially expressed genes in two coral species (Acropora austera and Acropora cerealis) in response to high CO2 levels. The calcification rates were higher in high CO2 treatment than the control in A. austera, but was not significantly different in A. cerealis. A KEGG database search revealed that in both coral species, most Ca2+ transporters were present in the calcium signaling pathway, which could be important in the CO2 regulation of coral calcification. The gene expression levels of many CO2 and HCO3- transporters were not affected by elevated CO2. Nevertheless, high CO2 levels did have an effect on the expression of certain Ca2+ transporters. The upregulation of Ca2+ transporters likely explained the higher resistance of A. austera to high CO2 than A. cerealis.
9 citations
TL;DR: It is suggested that elevatedCO2 may impair photosynthetic activity, but not growth, of a hard coral under competition and confirmed the hypothesis that soft corals are generally resistant to elevated CO2.
Abstract: Changes in environmental conditions, such as those caused by elevated carbon dioxide (CO2), potentially alter the outcome of competitive interactions between species. This study aimed to understand howelevated CO2 could influence competitive interactions between hard and soft corals, by investigating growth and photosynthetic activity of Porites cylindrica (a hard coral) under elevated CO2 and in the presence of another hard coral and two soft coral competitors. Coralswere collected from reefs around Orpheus and Pelorus Islands on the Great Barrier Reef, Australia. They were then exposed to elevated pCO2 for 4 weeks with two CO2 treatments: intermediate (pCO2 648) and high (pCO2 1003) compared with a control (unmanipulated seawater) treatment (pCO2 358). Porites cylindrica growth did not vary among pCO2 treatments, regardless of the presence and type of competitors, nor was the growth of another hard coral species, Acropora cerealis, affected by pCO2 treatment. Photosynthetic rates of P. cylindrica were sensitive to variations in pCO2, and varied between the side of the fragment facing the competitors vs. the side facing away from the competitor. However, variation in photosynthetic rates depended on pCO2 treatment, competitor identity, and whether the photosynthetic yields were measured as maximum or effective photosynthetic yield. This study suggests that elevated CO2 may impair photosynthetic activity, but not growth, of a hard coral under competition and confirms the hypothesis that soft corals are generally resistant to elevated CO2. Overall, our results indicate that shifts in the species composition in coral communities as a result of elevated CO2 could be more strongly related to the individual tolerance of different species rather than a result of competitive interactions between species.
7 citations
TL;DR: The complete mitogenome sequence of the Acropora cerealis (Acropora), has been sequenced by next-generation sequence method and provides essential and important DNA molecular data for further phylogenetic and evolutionary analysis of stony coral phylogeny.
Abstract: Abstract In this study, the complete mitogenome sequence of the Acropora cerealis (Acropora), has been sequenced by next-generation sequence method. The overall of A. cerealis mitogenome is 24.88% for A, 14.15% for C, 24.13% for G, and 36.84% for T, as well as 38.28% for low GC. The assembled mitogenome, consisting of 17,940 bp, has unique 13 protein-coding genes (PCGs), 2 transfer RNA genes and 2 ribosomal RNA genes. The complete mitogenome provides essential and important DNA molecular data for further phylogenetic and evolutionary analysis of stony coral phylogeny.
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2021 | 1 |
| 2019 | 2 |
| 2016 | 2 |
| 2013 | 1 |
| 2009 | 1 |