Siderophore cheating and cheating resistance shape competition for iron in soil and freshwater Pseudomonas communities.
Siderophore cheating and cheating resistance shape competition for iron in soil and freshwater Pseudomonas communities.
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DOI：
10.1038/s41467-017-00509-4
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发表时间：
2017-09-04
影响因子：
16.6
通讯作者：
Kümmerli R
中科院分区：
文献类型：
--
作者：
Butaitė E;Baumgartner M;Wyder S;Kümmerli R
所有社会有机体都会经历合作者之间的困境，合作者采取对群体有利的行动，而自私地利用这些行动进行欺骗。虽然细菌已经成为在实验室系统中研究社会困境的模式生物，但我们对它们在自然群落中的相关性知之甚少。在这里，我们表明，社会相互作用介导的一个单一的共享化合物的增长（铁清除绿脓菌荧光素）有重要的后果，在土壤和池塘的假单胞菌群落的竞争动态。我们发现，绿脓菌素非和低生产者共同出现在许多自然社区。虽然非生产者具有编码多种绿脓菌荧光素受体的基因，并且能够利用来自其他群落成员的相容的异源绿脓菌荧光素，但生产者在它们分泌的绿脓菌荧光素类型方面不同，从而提供保护以免受具有不相容受体的非生产者的利用。我们的研究结果表明，存在欺骗和欺骗抗性的选择，这可能会驱动天然细菌群落的拮抗性协同进化和多样化。假单胞菌的实验室菌株是公共产品（铁清除铁载体）合作进化的模型系统。在这里，Butaitches等人通过展示欺骗和对欺骗的抵抗都塑造了天然假单胞菌群落中对铁的竞争，为这个系统增加了生态学和进化学的见解。
All social organisms experience dilemmas between cooperators performing group-beneficial actions and cheats selfishly exploiting these actions. Although bacteria have become model organisms to study social dilemmas in laboratory systems, we know little about their relevance in natural communities. Here, we show that social interactions mediated by a single shareable compound necessary for growth (the iron-scavenging pyoverdine) have important consequences for competitive dynamics in soil and pond communities of Pseudomonas bacteria. We find that pyoverdine non- and low-producers co-occur in many natural communities. While non-producers have genes coding for multiple pyoverdine receptors and are able to exploit compatible heterologous pyoverdines from other community members, producers differ in the pyoverdine types they secrete, offering protection against exploitation from non-producers with incompatible receptors. Our findings indicate that there is both selection for cheating and cheating resistance, which could drive antagonistic co-evolution and diversification in natural bacterial communities. Lab strains of Pseudomonas are model systems for the evolution of cooperation over public goods (iron-scavenging siderophores). Here, Butaitė et al. add ecological and evolutionary insight into this system by showing that cheating and resistance to cheating both shape competition for iron in natural Pseudomonas communities.
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影响因子：
--
作者：
D'Onofrio A;Crawford JM;Stewart EJ;Witt K;Gavrish E;Epstein S;Clardy J;Lewis K
通讯作者：
Lewis K
影响因子：
3.2
作者：
HOHNADEL, D;MEYER, JM
通讯作者：
MEYER, JM
DOI：
10.1073/pnas.0702723104
发表时间：
2007-05-22
影响因子：
11.1
作者：
Gilbert, Owen M.;Foster, Kevin R.;Queller, David C.
通讯作者：
Queller, David C.
DOI：
10.1073/pnas.1508324112
发表时间：
2015-08-25
影响因子：
11.1
作者：
Andersen, Sandra Breum;Marvig, Rasmus Lykke;Griffin, Ashleigh S.
通讯作者：
Griffin, Ashleigh S.
影响因子：
2.1
作者：
Jiricny, N.;Diggle, S. P.;Griffin, A. S.
通讯作者：
Griffin, A. S.