Symbiosis maintenance in the facultative coral, Oculina arbuscula, relies on nitrogen cycling, cell cycle modulation, and immunity.
Symbiosis maintenance in the facultative coral, Oculina arbuscula, relies on nitrogen cycling, cell cycle modulation, and immunity.
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DOI：
10.1038/s41598-021-00697-6
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发表时间：
2021-10-27
影响因子：
4.6
通讯作者：
Davies SW
中科院分区：
文献类型：
--
作者：
Rivera HE;Davies SW
在热带海洋无脊椎动物中，与共生藻科的单细胞藻类共生是很常见的。造礁珊瑚提供了一个明显的例子，细胞功能障碍导致生态失调，在称为珊瑚漂白的过程中破坏整个生态系统。由于它们的专性共生关系，了解维持热带造礁珊瑚这种共生关系的分子基础是具有挑战性的，因为任何非共生状态本质上都与严重的生理压力相结合。在这里，我们利用亚热带，facultimate共生和钙化的珊瑚Oculina arbuscula调查在基线条件下相同的殖民地内的非共生和共生分支之间的基因表达差异。我们进一步比较了基因本体（GO）和KOG富集在O。arbuscula与先前在海葵Exaiptasia pallida（Aiptasia）和蝾螈Ambystoma maculatum中的工作-这两者都表现出与单细胞藻类的内光共生。我们确定氮循环，细胞周期控制和免疫反应的关键途径参与在基线条件下的共生维持。了解维持珊瑚和共生藻科藻类之间健康共生的机制具有紧迫的重要性，因为这些伙伴关系易受不断变化的环境条件的影响，而且它们在重要和高度多样化的海洋生态系统的持续运作中发挥作用。
Symbiosis with unicellular algae in the family Symbiodiniaceae is common across tropical marine invertebrates. Reef-building corals offer a clear example of cellular dysfunction leading to a dysbiosis that disrupts entire ecosystems in a process termed coral bleaching. Due to their obligate symbiotic relationship, understanding the molecular underpinnings that sustain this symbiosis in tropical reef-building corals is challenging, as any aposymbiotic state is inherently coupled with severe physiological stress. Here, we leverage the subtropical, facultatively symbiotic and calcifying coral Oculina arbuscula to investigate gene expression differences between aposymbiotic and symbiotic branches within the same colonies under baseline conditions. We further compare gene ontology (GO) and KOG enrichment in gene expression patterns from O. arbuscula with prior work in the sea anemone Exaiptasia pallida (Aiptasia) and the salamander Ambystoma maculatum—both of which exhibit endophotosymbiosis with unicellular algae. We identify nitrogen cycling, cell cycle control, and immune responses as key pathways involved in the maintenance of symbiosis under baseline conditions. Understanding the mechanisms that sustain a healthy symbiosis between corals and Symbiodiniaceae algae is of urgent importance given the vulnerability of these partnerships to changing environmental conditions and their role in the continued functioning of critical and highly diverse marine ecosystems.
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影响因子：
3.7
作者：
Dunn SR;Pernice M;Green K;Hoegh-Guldberg O;Dove SG
通讯作者：
Dove SG
影响因子：
2.5
作者：
Burmester, E. M.;Finnerty, J. R.;Rotjan, R. D.
通讯作者：
Rotjan, R. D.
影响因子：
3.5
作者：
Dimond, J.;Carrington, E.
通讯作者：
Carrington, E.
影响因子：
3.5
作者：
DeSalvo, M. K.;Estrada, A.;Medina, Monica
通讯作者：
Medina, Monica
DOI：
10.1073/pnas.1208909109
发表时间：
2012-10-30
影响因子：
11.1
作者：
De'ath, Glenn;Fabricius, Katharina E.;Puotinen, Marji
通讯作者：
Puotinen, Marji