Laboratory of Environmental Microbiology, EMBRAPA Environment, Brazilian Agricultural Research Corporation, SP 340, Km 127.5, Jaguariúna, São Paulo, 13820-000, Brazil.
College of Agriculture Luiz de Queiroz, University of São Paulo, Av. Pádua Dias, 11, Piracicaba, São Paulo, 13418-900, Brazil.
Braz J Microbiol. 2020 Sep;51(3):1233-1240. doi: 10.1007/s42770-020-00287-0. Epub 2020 May 3.
Social interactions impact microbial communities and these relationships are mediated by small molecules. The chemical ecology of bacteria on the phylloplane environment is still little explored. The harsh environmental conditions found on leaf surface require high metabolic performances of the bacteria in order to survive. That is interesting both for scientific fields of prospecting natural molecules and for the ecological studies. Important queries about the bacterial lifestyle on leaf surface remain not fully comprehended. Does the hostility of the environment increase the populations' cellular altruism by the production of molecules, which can benefit the whole community? Or does the reverse occur and the production of molecules related to competition between species is increased? Does the phylogenetic distance between the bacterial populations influence the chemical profile during social interactions? Do phylogenetically related bacteria tend to cooperate more than the distant ones? The phylloplane contains high levels of yet uncultivated microorganisms, and understanding the molecular basis of the social networks on this habitat is crucial to gain new insights on the ecology of the mysterious community members due to interspecies molecular dependence. Here, we review and discuss what is known about bacterial social interactions and their chemical lifestyle on leaf surface.
社交互动会影响微生物群落，而这些关系是由小分子介导的。叶际环境中细菌的化学生态学仍未得到充分探索。叶表面发现的恶劣环境条件要求细菌具有高代谢性能才能生存。这既有趣又具有科学领域的探索自然分子的前景，也有生态研究的意义。关于细菌在叶表面生活方式的重要问题仍然没有得到充分理解。环境的敌意是否会通过产生有利于整个群落的分子来增加群体的细胞利他主义？还是相反，与物种间竞争相关的分子的产生增加了？细菌种群之间的系统发育距离是否会影响社交互动期间的化学特征？系统发育上相关的细菌是否比距离较远的细菌更容易合作？叶面上含有高水平的尚未培养的微生物，了解该生境中社交网络的分子基础对于从种间分子依赖的角度获得对神秘社区成员生态的新见解至关重要。在这里，我们回顾和讨论了已知的关于细菌社交互动及其在叶表面的化学生活方式的信息。
