Fundamental shift in vitamin B12 eco-physiology of a model alga demonstrated by experimental evolution.

ABSTRACT: A widespread and complex distribution of vitamin requirements exists over the entire tree of life, with many species having evolved vitamin dependence, both within and between different lineages. Vitamin availability has been proposed to drive selection for vitamin dependence, in a process that links an organism's metabolism to the environment, but this has never been demonstrated directly. Moreover, understanding the physiological processes and evolutionary dynamics that influence metabolic demand for these important micronutrients has significant implications in terms of nutrient acquisition and, in microbial organisms, can affect community composition and metabolic exchange between coexisting species. Here we investigate the origins of vitamin dependence, using an experimental evolution

SUBMITTER: Helliwell KE 

PROVIDER: S-EPMC4430296 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature