{"title":"内寄生和外寄生共生菌对高温反应的比较","authors":"S. Ravelo, C. Conaco","doi":"10.1080/10236244.2018.1503935","DOIUrl":null,"url":null,"abstract":"ABSTRACT Corals exhibit different responses to increasing temperature but it remains unclear whether this is determined exclusively by symbiont type or by intrinsic properties of the host. Here, we investigated the response to elevated temperature of symbionts of the same ITS2 type from three acroporid species from Bolinao, northwestern Philippines. Maximum quantum yield (Fv/Fm) of PSII was measured in symbionts subjected to 26°C (average winter temperature) and 31°C (average summer temperature) for up to 48 hrs. Greater reduction in Fv/Fm was observed for ex hospite than for in hospite symbionts. However, no significant differences in response could be discerned for symbionts associated with or originating from the different acroporids. Thus, while these findings confirm that the coral host can protect in hospite symbionts from temperature perturbations, for the acroporids in this study, there is still no evidence that host type confers differential thermal susceptibility to the symbionts or to the coral holobiont.","PeriodicalId":18210,"journal":{"name":"Marine and Freshwater Behaviour and Physiology","volume":null,"pages":null},"PeriodicalIF":0.9000,"publicationDate":"2018-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"Comparison of the response of in hospite and ex hospite Symbiodinium to elevated temperature\",\"authors\":\"S. Ravelo, C. Conaco\",\"doi\":\"10.1080/10236244.2018.1503935\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"ABSTRACT Corals exhibit different responses to increasing temperature but it remains unclear whether this is determined exclusively by symbiont type or by intrinsic properties of the host. Here, we investigated the response to elevated temperature of symbionts of the same ITS2 type from three acroporid species from Bolinao, northwestern Philippines. Maximum quantum yield (Fv/Fm) of PSII was measured in symbionts subjected to 26°C (average winter temperature) and 31°C (average summer temperature) for up to 48 hrs. Greater reduction in Fv/Fm was observed for ex hospite than for in hospite symbionts. However, no significant differences in response could be discerned for symbionts associated with or originating from the different acroporids. Thus, while these findings confirm that the coral host can protect in hospite symbionts from temperature perturbations, for the acroporids in this study, there is still no evidence that host type confers differential thermal susceptibility to the symbionts or to the coral holobiont.\",\"PeriodicalId\":18210,\"journal\":{\"name\":\"Marine and Freshwater Behaviour and Physiology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2018-03-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Marine and Freshwater Behaviour and Physiology\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1080/10236244.2018.1503935\",\"RegionNum\":4,\"RegionCategory\":\"生物学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"MARINE & FRESHWATER BIOLOGY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Marine and Freshwater Behaviour and Physiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/10236244.2018.1503935","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"MARINE & FRESHWATER BIOLOGY","Score":null,"Total":0}
Comparison of the response of in hospite and ex hospite Symbiodinium to elevated temperature
ABSTRACT Corals exhibit different responses to increasing temperature but it remains unclear whether this is determined exclusively by symbiont type or by intrinsic properties of the host. Here, we investigated the response to elevated temperature of symbionts of the same ITS2 type from three acroporid species from Bolinao, northwestern Philippines. Maximum quantum yield (Fv/Fm) of PSII was measured in symbionts subjected to 26°C (average winter temperature) and 31°C (average summer temperature) for up to 48 hrs. Greater reduction in Fv/Fm was observed for ex hospite than for in hospite symbionts. However, no significant differences in response could be discerned for symbionts associated with or originating from the different acroporids. Thus, while these findings confirm that the coral host can protect in hospite symbionts from temperature perturbations, for the acroporids in this study, there is still no evidence that host type confers differential thermal susceptibility to the symbionts or to the coral holobiont.
期刊介绍:
Marine and Freshwater Behaviour and Physiology is devoted to the publication of papers covering field and laboratory research into all aspects of the behaviour and physiology of all marine and freshwater animals within the contexts of ecology, evolution and conservation.
As the living resources of the world’s oceans, rivers and lakes are attracting increasing attention as food sources for humans and for their role in global ecology, the journal will also publish the results of research in the areas of fisheries biology and technology where the behaviour and physiology described have clear links to the contexts mentioned above.
The journal will accept for publication Research Articles, Reviews, Rapid Communications and Technical Notes (see Instructions for authors for details). In addition, Editorials, Opinions and Book Reviews (invited and suggested) will also occasionally be published. Suggestions to the Editor-In-Chief for Special Issues are encouraged and will be considered on an ad hoc basis.
With the goal of supporting early career researchers, the journal particularly invites submissions from graduate students and post-doctoral researchers. In addition to recognising the time constraints and logistical limitations their research often faces, and their particular need for a prompt review process, accepted articles by such researchers will be given prominence within the journal (see Instructions for authors for details).