Aim The distribution of Yersinia pestis , the pathogen that causes plague in humans, is reliant upon transmission between host species; however, the degree to which host species distributions dictate the distribution of Y. pestis , compared with limitations imposed by the environmental niche of Y. pestis per se, is debated. We test whether the present‐day environmental niche of Y. pestis differs between its native range and an...

Summary U lva zoospores preferentially settle on N ‐acylhomoserine lactone ( AHL ) producing marine bacterial biofilms. To investigate whether AHL signal molecules also affect the success and rate of zoospore germination in addition to zoospore attraction, the epiphytic bacteria associated with mature U lva linza were characterized and bacterial isolates representative of this community tested for the ability to produce AHLs ....

Summary N ‐acylhomoserine lactone (AHL) quorum‐sensing molecules modulate the swimming behaviour of zoospores of the macroalga Ulva to facilitate the location of bacterial biofilms. Here we show that the intertidal surfaces colonized by Ulva are dominated by Alphaproteobacteria , particularly the Rhodobacteraceae family, and the Bacteroidetes family Flavobacteriaceae , and that this diverse assemblage both produces and degrade...