02274naa a2200301 a 450000100080000000500110000800800410001902200140006002400520007410000200012624500790014626000090022552014180023465000260165265000210167865000160169965000140171565000100172965000270173965300170176665300230178370000170180670000230182370000150184670000190186170000200188077300720190021408642022-03-14       2020    bl uuuu     u00u1 u    #d  a1678-44057 ahttps://doi.org/10.1007/s42770-020-00287-02DOI1 aMOITINHO, M. A.  aThe unexplored bacterial lifestyle on leaf surface.h[electronic resource]  c2020  aAbstract: 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.  aBacterial communities  aChemical ecology  aPhylloplane  aBactéria  aFolha  aPopulação Microbiana  aLeaf surface  aSocial interaction1 aSOUZA, D. T.1 aCHIARAMONTE, J. B.1 aBONONI, L.1 aMELO, I. S. de1 aTAKETANI, R. G.  tBrazilian Journal of Microbiologygv. 51, n. 3, p. 1233?1240, 2020.