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Overmyer, K.* ; Kollist, H.* ; Tuominen, H.* ; Betz, C. ; Langebartels, C. ; Wingsle, G.* ; Kangasjärvi, S.* ; Brader, G.* ; Mullineaux, P.* ; Kangasjärvi, J.*

Complex phenotypic profiles leading to ozone sensitivity in Arabidopsis thaliana mutants.

Plant Cell Environ. 31, 1237-1249 (2008)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
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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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
Schlagwörter reticulata; chloroplast; genetics; leaf organogenesis; oxidative stress; reactive oxygen species ; stomata
ISSN (print) / ISBN 0140-7791
e-ISSN 1365-3040
Zeitschrift Plant, Cell and Environment
Quellenangaben Band: 31, Heft: 9, Seiten: 1237-1249 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Malden, MA
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Institute of Biochemical Plant Pathology (BIOP)