Pseudomonas brassicacearum
Transitions between various environments may occur over relatively short time scales, requiring bacteria to rapidly adjust their physiology. Small regulatory RNAs (sRNAs) are appropriate for such responses. We focus on the involvement of sRNAs in the adaptive response of P. brassicacearum to environmental variations and in the control of a variety of biological functions required for beneficial plant-bacteria interactions.
Ramlibacter tataouinensis
Ramlibacter tataouinensis TTB310, a betaproteobacterium isolated from a semi-arid region of South Tunisia (Tataouine), is characterized by the presence of both cyst-like and rod-shaped cells in pure culture. The original cell cycle of strain TTB310, with desiccation tolerant cyst-like cells capable of division and desiccation-sensitive motile rods capable of dissemination, appears to be a novel adaptation for life in a hot and dry desert environment.
We use R. tataouinensis as bacterial model to address questions on bacterial adaptation to dry and hot desert, especially through the effect of light on cell cycle.