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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1111/gcb.16057
|2 doi
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|a pubmed24n1116.xml
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|a (DE-627)NLM334935407
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|a (NLM)34957651
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Matsuda, Shayle B
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Temperature-mediated acquisition of rare heterologous symbionts promotes survival of coral larvae under ocean warming
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 24.02.2022
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|a Date Revised 05.11.2023
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a © 2021 The Authors. Global Change Biology published by John Wiley & Sons Ltd.
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|a Reef-building corals form nutritional symbioses with endosymbiotic dinoflagellates (Symbiodiniaceae), a relationship that facilitates the ecological success of coral reefs. These symbionts are mostly acquired anew each generation from the environment during early life stages ("horizontal transmission"). Symbiodiniaceae species exhibit trait variation that directly impacts the health and performance of the coral host under ocean warming. Here, we test the capacity for larvae of a horizontally transmitting coral, Acropora tenuis, to establish symbioses with Symbiodiniaceae species in four genera that have varying thermal thresholds (the common symbiont genera, Cladocopium and Durusdinium, and the less common Fugacium and Gerakladium). Over a 2-week period in January 2018, a series of both no-choice and four-way choice experiments were conducted at three temperatures (27, 30, and 31°C). Symbiont acquisition success and cell proliferation were measured in individual larvae. Larvae successfully acquired and maintained symbionts of all four genera in no-choice experiments, and >80% of larvae were infected with at least three genera when offered a four-way choice. Unexpectedly, Gerakladium symbionts increased in dominance over time, and at high temperatures outcompeted Durusdinium, which is regarded as thermally tolerant. Although Fugacium displayed the highest thermal tolerance in culture and reached similar cell densities to the other three symbionts at 31°C, it remained a background symbiont in choice experiments, suggesting host preference for other symbiont species. Larval survivorship at 1 week was highest in larvae associated with Gerakladium and Fugacium symbionts at 27 and 30°C, however at 31°C, mortality was similar for all treatments. We hypothesize that symbionts that are currently rare in corals (e.g., Gerakladium) may become more common and widespread in early life stages under climate warming. Uptake of such symbionts may function as a survival strategy in the wild, and has implications for reef restoration practices that use sexually produced coral stock
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|a Journal Article
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|a Symbiodiniaceae
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a coral
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| 650 |
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4 |
|a digital droplet PCR (ddPCR)
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| 650 |
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4 |
|a larvae
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| 650 |
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4 |
|a symbiont choice experiments
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| 650 |
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4 |
|a symbiosis
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| 650 |
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4 |
|a thermal stress
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| 700 |
1 |
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|a Chakravarti, Leela J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Cunning, Ross
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Huffmyer, Ariana S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nelson, Craig E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gates, Ruth D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a van Oppen, Madeleine J H
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 28(2022), 6 vom: 01. März, Seite 2006-2025
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
8 |
|g volume:28
|g year:2022
|g number:6
|g day:01
|g month:03
|g pages:2006-2025
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| 856 |
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|u http://dx.doi.org/10.1111/gcb.16057
|3 Volltext
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