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Identifying "super corals" in Mauritius: what physiological factors promote high recovery after bleaching?

识别毛里求斯的“超级珊瑚”：哪些生理因素促进白化后的高恢复？

基本信息

批准号：
18KK0298
负责人：
CASARETO Beatriz
金额：
$ 11.48万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))
财政年份：
2018
资助国家：
日本
起止时间：
2018-10-09 至 2024-03-31
项目状态：
已结题

项目摘要

This study aims to describe the physiological mechanisms that promote a successful response of thermally tolerant corals, which we define as “super corals". We surveyed two target reefs: Albion (A) (shallow, human impacted) and Belle-Mare (BM) (deep, less affected). We sampled 17 and 19 coral colonies in A and BM respectively. Results from these studies showed that rather than in A, corals in BM were highly exposed to stressful condition judging from the high allomer/Chl-a indicating oxidative stress condition of symbionts and the total holobiont affected judging from the high gly/glu ratio in the tissues of corals from BM. Nevertheless, these corals were successful in keeping high Fv/Fm with healthy zooxanthellae with high Chl-a/cell. High % of the bacterium Endozoicomonas in Pocillopora corals at BM confirmed their healthy condition. The presence of Symbiodiniaceae of Clade D (Genus Durusdinium) (thermal resistant) reinforced “super coral” features. In terms of coral species, Pocillopora eydouxi, Pavona sp and Montipora sp were the species classified as "super corals". Surveys were continued by members of UoM and jointly analyzed during SU team visit to Mauritius in December 2022. We published 2 scientific papers in collaboration with Mauritius researchers. We participated in 2 international symposia with oral and poster presentations.

这项研究的目的是描述的生理机制，促进成功的反应，耐热珊瑚，我们定义为“超级珊瑚”。我们调查了两个目标珊瑚礁：Albion（A）（浅，受人类影响）和Belle-Mare（BM）（深，受影响较小）。我们分别在A和BM中采集了17个和19个珊瑚群落。从这些研究的结果表明，而不是在A，珊瑚在BM高度暴露于应激条件下判断从高的异源异构体/Chl-a指示共生体的氧化应激条件和总的holobiont影响判断从高gly/glu比率的珊瑚组织从BM。然而，这些珊瑚成功地保持高Fv/Fm与健康的虫黄藻与高Chl-a/细胞。在BM的Pocillopora珊瑚中有高百分比的细菌Endozoicomonas证实了它们的健康状况。共生藻科的进化枝D（Durusdinium属）（耐热）的存在加强了“超级珊瑚”的特征。在珊瑚种类方面，Pocillopora eydouxi、Pavona sp及Montipora sp为“超级珊瑚”。调查由UoM成员继续进行，并于2022年12月SU团队访问毛里求斯期间进行联合分析。我们与毛里求斯研究人员合作发表了2篇科学论文。我们参加了2次国际研讨会，并进行了口头和海报展示。

项目成果

期刊论文数量（39）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Effect of diatom abundance and biogenic silica availability on the population growth of tintinnid ciliates at Suruga Bay

DOI：
10.1007/s10872-020-00569-z
发表时间：
2020-10
期刊：
Journal of Oceanography
影响因子：
2.3
作者：
Nhan Van Dinh;B. Casareto;Mohan P. Niraula;Keita Toyoda;Aussanee Meekaew;Yoshimi Suzuki
通讯作者：
Nhan Van Dinh;B. Casareto;Mohan P. Niraula;Keita Toyoda;Aussanee Meekaew;Yoshimi Suzuki

Glycerol Enhances Growth and Antimicrobial Properties of Two Selected Vibrio Bacteria Associated with the Coral Montipora digitata.

甘油可增强与指状珊瑚珊瑚相关的两种选定弧菌的生长和抗菌特性。