Research Repository

Complex phenotypic profiles leading to ozone sensitivity in<i>Arabidopsis thaliana</i>mutants

OVERMYER, KIRK and KOLLIST, HANNES and TUOMINEN, HANNELE and BETZ, CHRISTIAN and LANGEBARTELS, CHRISTIAN and WINGSLE, GUNNAR and KANGASJÄRVI, SAIJALIISA and BRADER, GÜNTER and MULLINEAUX, PHIL and KANGASJÄRVI, JAAKKO (2008) 'Complex phenotypic profiles leading to ozone sensitivity in<i>Arabidopsis thaliana</i>mutants.' Plant, Cell &amp; Environment, 31 (9). pp. 1237-1249. ISSN 0140-7791

Full text not available from this repository.


Genetically tractable model plants offer the possibility of defining the plant O3 response at the molecular level. To this end, we have isolated a collection of ozone (O3)-sensitive mutants of Arabidopsis thaliana. Mutant phenotypes and genetics were characterized. Additionally, parameters associated with O3 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 O3 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. © 2008 The Authors.

Item Type: Article
Uncontrolled Keywords: reticulata; chloroplast; genetics; leaf organogenesis; oxidative stress; reactive oxygen species; stomata
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science and Health
Faculty of Science and Health > Life Sciences, School of
SWORD Depositor: Elements
Depositing User: Elements
Date Deposited: 11 Oct 2011 10:54
Last Modified: 18 Aug 2022 13:25

Actions (login required)

View Item View Item