@article{fdi:010040933,
  title = {{D}ual role for a bacteriophytochrome in the bioenergetic control of {R}hodopsdeudomonas palustris : enhancement of photosystem synthesis and limitation of respiration},
  author = {{K}ojadinovic, {M}. and {L}augraud, {A}. and {V}uillet, {L}aurie and {F}ardoux, {J}o{\¨e}l and {H}annibal, {L}aure and {A}driano, {J}. {M}. and {B}ouyer, {P}. and {G}iraud, {E}ric and {V}erm{\'e}glio, {A}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n the purple photosynthetic bacterium {R}hodopseudomonas palustris, far-red illumination induces photosystem synthesis via the action of the bacteriophytochrome {R}p{B}ph{P}1. {T}his bacteriophytochrome antagonizes the repressive effect of the transcriptional regulator {P}ps{R}2 under aerobic condition. {W}e show here that, in addition to photosystem synthesis, far-red light induces a significant growth rate limitation, compared to cells grown in the dark, linked to a decrease in the respiratory activity. {T}he phenotypes of mutants inactivated in {R}p{B}ph{P}1 and {P}ps{R}2 show their involvement in this regulation. {B}ased on enzymatic and transcriptional studies, a 30% decrease in the expression of the alpha-ketoglutarate dehydrogenase complex, a central enzyme of the {K}rebs cycle, is observed under far-red light. {W}e propose that this decrease is responsible for the down-regulation of respiration in this condition. {T}his regulation mechanism at the {K}rebs cycle level still allows the formation of the photosynthetic apparatus via the synthesis of key biosynthesis precursors but lowers the production of {NADH}, i.e. the respiratory activity. {O}verall, the dual action of {R}p{B}ph{P}1 on the regulation of both the photosynthesis genes and the {K}rebs cycle allows a fine adaptation of bacteria to environmental conditions by enhancement of the most favorable bioenergetic process in the light, photosynthesis versus respiration.},
  keywords = {},
  booktitle = {},
  journal = {{B}iochimica et {B}iophysica {A}cta {B}ioenergetics},
  volume = {1777},
  numero = {2},
  pages = {163--172},
  ISSN = {0005-2728},
  year = {2008},
  DOI = {10.1016/j.bbabio.2007.09.003},
  URL = {https://www.documentation.ird.fr/hor/fdi:010040933},
}