Triazine herbicide resistance in the photosynthetic bacterium Rhodopseudomonas sphaeroides

Autor:	Carl W. Gilbert, Rachel Guy, Alfred E. Brown, Charles J. Arntzen
Rok vydání:	1984
Předmět:	Photosynthetic reaction centre Multidisciplinary food.ingredient biology Chemistry Protein subunit Mutant Rhodopseudomonas biology.organism_classification Photosynthesis Chloroplast Electron transfer food Biochemistry Biological Sciences: Biochemistry Bacteria
Zdroj:	Proceedings of the National Academy of Sciences. 81:6310-6314
ISSN:	1091-6490 0027-8424
DOI:	10.1073/pnas.81.20.6310
Popis:	The photoaffinity herbicide azidoatrazine (2-azido-4-ethylamino-6-isopropylamino- s -triazine) selectively labels the L subunit of the reaction center of the photosynthetic bacterium Rhodopseudomonas sphaeroides . Herbicide-resistant mutants retain the L subunit and have altered binding properties for methylthio- and chloro-substituted triazines as well as altered equilibrium constants for electron transfer between primary and secondary electron acceptors. We suggest that a subtle alteration in the L subunit is responsible for herbicide resistance and that the L subunit is the functional analog of the 32-kDa Q B protein of chloroplast membranes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6840d5935b2a1048e9c5180be6a26993 https://doi.org/10.1073/pnas.81.20.6310 Zobrazit plný text záznamu