Author

David R. Johnson

2 papers indexed here

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Open access Sep 2026

Biosurfactants direct the evolutionary dynamics of surface-associated microbial systems

Surface-associated microbial systems experience spatial constraints that can intensify stochastic lineage loss through genetic drift and alter how natural selection acts on competing lineages. A key feature of these systems is that steep resource gradients typically confine growth to a narrow band of cells located at t...

Chu-Jin Ruan, Bi-Jing Xiong, Deepthi P. Vinod et al. · Science Advances · 0 citations

Open access Aug 2026

Bacterial and fungal co-colonization alters Malassezia restricta metabolism and host proteolytic activity in reconstructed human epidermis

Introduction On the skin, bacteria and fungi form mixed communities whose interactions can reshape both microbial physiology and host tissue, yet the microbial mechanisms remain poorly defined. Although polymicrobial colonization severity often exceeds the effects of individual pathogens in these conditions, the mechan...

Eun Sun Lyou, Sang-Hyeon Yoo, Ki-Jong Rhee et al. · Frontiers in Microbiology · 0 citations