English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/99631
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Wavelength shifts correlation between bear infrared and ultraviolet regions of the LHII bacteriochlorophyll spectrum from Ectothiorhodospira sp

AuthorsBuche, André
KeywordsLight-Harvesting Complex
Issue DateMay-2001
PublisherZeitschrift für Naturforschung
CitationZeitschrift für Naturforschung - Section C Journal of Biosciences 56 (5-6): 363-368 (2001)
AbstractBacteriochlorophyll a has a maximum at 258 nm previously related to the ring E ester system interacting with the π-system of the macrocycle. In this work, we compared the effect of lauryldimethylamine-N-oxide (LDAO) and alkaline pH on both the near infrared and the ultraviolet region of the LHII spectrum from Ectothiorhodospira sp. While LDAO induces only a shift of the 850 nm band arising from the Qy transition of the bacteriochlorophyll a, alkaline pH also causes a concomitant and reversible 10-nm shift from 258 to 248 nm. Both shifts have similar apparent pKs (12.3 and 12.6, respectively). Interestingly, the presence of NaCl reduces these pKs values to 11.4 and 11.7.
Description6 p., 3 fig. This work has been digitalized and published in 2013 by Verlag Zeitschrift für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution-NoDerivs 3.0 Germany License, which permits to copy and redistribute the material in any medium or format.
Publisher version (URL)http://zfn.mpdl.mpg.de/data/Reihe_C/56/ZNC-2001-56c-0363.pdf
Appears in Collections:(EEAD) Artículos
Files in This Item:
File Description SizeFormat 
BucheA_Zeitschrift fur Naturforschung_56_5_2001.pdf5,47 MBAdobe PDFThumbnail
Show full item record
Review this work

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.