Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2004-9-27
pubmed:abstractText
The primary light-induced processes of phycocyanobilin were studied by means of transient-grating spectroscopy, whereby the excitation wavelength was varied over the spectral region of the ground-state absorption. On the basis of the results obtained, both the rate of the photoreaction in phycocyanobilin and the ratio of the decay of different excited-state species via two decay channels depend on the excitation wavelength. Furthermore, the formation of the photoreaction product is also dependent on the pump color. These data support a recently established model for the primary photoprocesses in phycocyanobilin. In addition, phycocyanobilin protonated at the basic pyrrolenine-type nitrogen atom was included in the transient absorption study. The decay behavior was found to be almost unchanged when compared with the unprotonated form, and this suggests that protonation of the tetrapyrrole ring structure has no effect on the overall photochemistry.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1439-4235
pubmed:author
pubmed:issnType
Print
pubmed:day
20
pubmed:volume
5
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1171-7
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
The excited-state dynamics of phycocyanobilin in dependence on the excitation wavelength.
pubmed:affiliation
Institut für Physikalische Chemie Bayerische Julius-Maximilians Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't