Legumes versus rhizobia: a model for ongoing conflict in symbiosis
Legumes versus rhizobia: a model for ongoing conflict in symbiosis
复制标题
豆类与根瘤菌：共生中持续冲突的模型
DOI：
10.1111/nph.15222
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发表时间：
2018
期刊：
影响因子：
9.4
通讯作者：
Wendlandt, Camille E.
中科院分区：
文献类型：
--
作者：
Sachs, Joel L.;Quides, Kenjiro W.;Wendlandt, Camille E.
内容 摘要1199 I.导言. 1199 二.选择有益的共生体：一个问题，许多解决方案1200 三.豆类种植的控制和冲突 四.对结核生长和衰老的控制和冲突 五、结论. 1204 致谢1205 参考文献1205概述豆科植物-根瘤菌共生体是宿主对微生物控制限度的一个强有力的模型。豆科植物调节容纳固氮根瘤菌的根瘤的形成，并调整对根瘤发育和生长的投资。然而，这些特征的健身结果的范围揭示了合作伙伴之间激烈的利益冲突。新的工作，我们在这里审查和综合表明，豆科植物已经进化出不同的机制控制共生体，但主机控制往往被根瘤菌颠覆。这种冲突的一个结果是，豆科植物和根瘤菌都进化出了许多可以在这种相互作用中改善自身短期适应性的性状，但几乎没有证据表明固氮的联合性状有任何净改善。
Contents Summary 1199 I. Introduction 1199 II. Selecting beneficial symbionts: one problem, many solutions 1200 III. Control and conflict over legume nodulation 1201 IV. Control and conflict over nodule growth and senescence 1204 V. Conclusion 1204 Acknowledgements 1205 References 1205SummaryThe legume–rhizobia association is a powerful model of the limits of host control over microbes. Legumes regulate the formation of root nodules that house nitrogen‐fixing rhizobia and adjust investment into nodule development and growth. However, the range of fitness outcomes in these traits reveals intense conflicts of interest between the partners. New work that we review and synthesize here shows that legumes have evolved varied mechanisms of control over symbionts, but that host control is often subverted by rhizobia. An outcome of this conflict is that both legumes and rhizobia have evolved numerous traits that can improve their own short‐term fitness in this interaction, but little evidence exists for any net improvement in the joint trait of nitrogen fixation.