Linked Life Data

18837436

Source:http://linkedlifedata.com/resource/pubmed/id/18837436

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-12-22
pubmed:abstractText
Using quantitative X-ray microanalysis in combination with CeCl3-based cytochemical staining of hydrogen peroxide (H2O2) we have developed a new solution for quantification of H2O2 at the subcellular level. Quantitative X-ray microanalysis of plastic-embedded leaves of Populus euphratica Oliv. showed that the obtained cerium precipitates by CeCl3 staining were the mixture of cerium perhydroxides and cerium phosphate, in which the fractions of CePO4 were: (1) 52-74% in cell walls of fresh leaf segments, and (2) 34-70% in the cytoplasm in 10 mM H2O2-treated leaf segments that were previously freeze-dried. Taking the concentration of cerium phosphate as staining background, we reached the cellular concentration of cerium perhydroxides and the corresponding concentration of H2O2. Results showed that H2O2 was present in the cytoplasm of rehydrated leaf segments (29-58 mM), but in fresh leaves, H2O2 was observed in the walls of all measured cell types (17-74 mM).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1097-0029
pubmed:author
pubmed:copyrightInfo
Copyright 2008 Wiley-Liss, Inc.
pubmed:issnType
Electronic
pubmed:volume
72
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
49-60
pubmed:meshHeading
pubmed:year
2009
pubmed:articleTitle
Quantitative X-ray microanalysis of hydrogen peroxide within plant cells.
pubmed:affiliation
College of Biological Sciences and Technology, Beijing Forestry University, Beijing 100083, People's Republic of China. lschen@bjfu.edu.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't