Bacterial Vesicles in Marine Ecosystems

IF 47.3 1区综合性期刊 Q1 MULTIDISCIPLINARY SCIENCES

Science Pub Date : 2014-01-10 DOI:10.1126/science.1243457

Steven J. Biller, Florence Schubotz, Sara E. Roggensack, Anne W. Thompson, Roger E. Summons, Sallie W. Chisholm

引用次数: 384

Abstract

Many heterotrophic bacteria are known to release extracellular vesicles, facilitating interactions between cells and their environment from a distance. Vesicle production has not been described in photoautotrophs, however, and the prevalence and characteristics of vesicles in natural ecosystems is unknown. Here, we report that cultures of Prochlorococcus, a numerically dominant marine cyanobacterium, continuously release lipid vesicles containing proteins, DNA, and RNA. We also show that vesicles carrying DNA from diverse bacteria are abundant in coastal and open-ocean seawater samples. Prochlorococcus vesicles can support the growth of heterotrophic bacterial cultures, which implicates these structures in marine carbon flux. The ability of vesicles to deliver diverse compounds in discrete packages adds another layer of complexity to the flow of information, energy, and biomolecules in marine microbial communities.

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海洋生态系统中的细菌囊泡

众所周知，许多异养细菌会释放胞外囊泡，促进细胞与其环境之间的远距离互动。然而，在光自养型细菌中还没有关于囊泡产生的描述，自然生态系统中囊泡的普遍性和特征也不清楚。在这里，我们报告了一种在数量上占优势的海洋蓝藻--原绿球藻的培养物会不断释放出含有蛋白质、DNA 和 RNA 的脂质囊泡。我们还发现，在沿海和公海的海水样本中，含有多种细菌 DNA 的囊泡非常丰富。原绿球菌囊泡能支持异养细菌培养物的生长，这表明这些结构与海洋碳通量有关。囊泡能够以离散的包装传递各种化合物，这为海洋微生物群落中的信息、能量和生物分子流动增添了另一层复杂性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Science 综合性期刊-综合性期刊

CiteScore

61.10

自引率

0.90%

发文量

审稿时长

2.1 months

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