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Open Access Green as soon as Postprint is submitted to ZB.
Complex phenotypic profiles leading to ozone sensitivity in Arabidopsis thaliana mutants.
Plant Cell Environ. 31, 1237-1249 (2008)
Genetically tractable model plants offer the possibility of defining the plant O(3) response at the molecular level. To this end, we have isolated a collection of ozone (O(3))-sensitive mutants of Arabidopsis thaliana. Mutant phenotypes and genetics were characterized. Additionally, parameters associated with O(3) sensitivity were analysed, including stomatal conductance, sensitivity to and accumulation of reactive oxygen species, antioxidants, stress gene-expression and the accumulation of stress hormones. Each mutant has a unique phenotypic profile, with O(3) sensitivity caused by a unique set of alterations in these systems. O(3) sensitivity in these mutants is not caused by gross deficiencies in the antioxidant pathways tested here. The rcd3 mutant exhibits misregulated stomata. All mutants exhibited changes in stress hormones consistent with the known hormonal roles in defence and cell death regulation. One mutant, dubbed re-8, is an allele of the classic leaf development mutant reticulata and exhibits phenotypes dependent on light conditions. This study shows that O(3) sensitivity can be determined by deficiencies in multiple interacting plant systems and provides genetic evidence linking these systems.
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Publication type
Article: Journal article
Document type
Scientific Article
Keywords
reticulata; chloroplast; genetics; leaf organogenesis; oxidative stress; reactive oxygen species ; stomata
Language
Publication Year
2008
HGF-reported in Year
2008
ISSN (print) / ISBN
0140-7791
e-ISSN
1365-3040
Journal
Plant, Cell and Environment
Quellenangaben
Volume: 31,
Issue: 9,
Pages: 1237-1249
Publisher
Wiley
Publishing Place
Malden, MA
Reviewing status
Peer reviewed
Institute(s)
Institute of Biochemical Plant Pathology (BIOP)
POF-Topic(s)
30202 - Environmental Health
Research field(s)
Environmental Sciences
PSP Element(s)
G-504900-001
Scopus ID
49649116413
Erfassungsdatum
2008-09-30