dc.contributor.author |
Morales, Luis O. |
|
dc.contributor.author |
Shapiguzov, Alexey |
|
dc.contributor.author |
Safronov, Omid |
|
dc.contributor.author |
Leppälä, Johanna |
|
dc.contributor.author |
Vaahtera, Lauri |
|
dc.contributor.author |
Yarmolinsky, Dmitry |
|
dc.contributor.author |
Kollist, Hannes |
|
dc.contributor.author |
Brosche, Mikael |
|
dc.date.accessioned |
2021-10-05T08:54:01Z |
|
dc.date.available |
2021-10-05T08:54:01Z |
|
dc.date.issued |
2021-05 |
|
dc.identifier.citation |
Morales , L O , Shapiguzov , A , Safronov , O , Leppälä , J , Vaahtera , L , Yarmolinsky , D , Kollist , H & Brosche , M 2021 , ' Ozone responses in Arabidopsis : beyond stomatal conductance ' , Plant Physiology , vol. 186 , no. 1 , pp. 180-192 . https://doi.org/10.1093/plphys/kiab097 |
|
dc.identifier.other |
PURE: 169013043 |
|
dc.identifier.other |
PURE UUID: 367a9a58-d81d-43d4-a115-50bfc478b6a4 |
|
dc.identifier.other |
WOS: 000696366700014 |
|
dc.identifier.other |
ORCID: /0000-0002-9233-7254/work/101029645 |
|
dc.identifier.other |
ORCID: /0000-0002-1135-2496/work/101029889 |
|
dc.identifier.other |
ORCID: /0000-0001-7199-1882/work/101030989 |
|
dc.identifier.other |
ORCID: /0000-0003-2044-3258/work/101031328 |
|
dc.identifier.uri |
http://hdl.handle.net/10138/334916 |
|
dc.description.abstract |
Tropospheric ozone (O-3) is a major air pollutant that decreases yield of important crops worldwide. Despite long-lasting research of its negative effects on plants, there are many gaps in our knowledge on how plants respond to O-3. In this study, we used natural variation in the model plant Arabidopsis (Arabidopsis thaliana) to characterize molecular and physiological mechanisms underlying O-3 sensitivity. A key parameter in models for O-3 damage is stomatal uptake. Here we show that the extent of O-3 damage in the sensitive Arabidopsis accession Shahdara (Sha) does not correspond with O-3 uptake, pointing toward stomata-independent mechanisms for the development of O-3 damage. We compared tolerant (Col-0) versus sensitive accessions (Sha, Cvi-0) in assays related to photosynthesis, cell death, antioxidants, and transcriptional regulation. Acute O-3 exposure increased cell death, development of lesions in the leaves, and decreased photosynthesis in sensitive accessions. In both Sha and Cvi-0, O-3-induced lesions were associated with decreased maximal chlorophyll fluorescence and low quantum yield of electron transfer from Photosystem II to plastoquinone. However, O-3-induced repression of photosynthesis in these two O-3-sensitive accessions developed in different ways. We demonstrate that O-3 sensitivity in Arabidopsis is influenced by genetic diversity given that Sha and Cvi-0 developed accession-specific transcriptional responses to O-3. Our findings advance the understanding of plant responses to O-3 and set a framework for future studies to characterize molecular and physiological mechanisms allowing plants to respond to high O-3 levels in the atmosphere as a result of high air pollution and climate change. |
en |
dc.format.extent |
13 |
|
dc.language.iso |
eng |
|
dc.relation.ispartof |
Plant Physiology |
|
dc.rights |
cc_by |
|
dc.rights.uri |
info:eu-repo/semantics/openAccess |
|
dc.subject |
GENE-EXPRESSION |
|
dc.subject |
THALIANA ACCESSIONS |
|
dc.subject |
OXIDATIVE BURST |
|
dc.subject |
ABIOTIC STRESS |
|
dc.subject |
CELL-DEATH |
|
dc.subject |
PHOTOSYNTHESIS |
|
dc.subject |
ROLES |
|
dc.subject |
TRANSCRIPTOME |
|
dc.subject |
FLUORESCENCE |
|
dc.subject |
SENSITIVITY |
|
dc.subject |
11831 Plant biology |
|
dc.title |
Ozone responses in Arabidopsis : beyond stomatal conductance |
en |
dc.type |
Article |
|
dc.contributor.organization |
Organismal and Evolutionary Biology Research Programme |
|
dc.contributor.organization |
Viikki Plant Science Centre (ViPS) |
|
dc.contributor.organization |
Plant ROS-Signalling |
|
dc.contributor.organization |
Plant Biology |
|
dc.contributor.organization |
Molecular and Integrative Biosciences Research Programme |
|
dc.contributor.organization |
Plant-Fungal Interactions Group |
|
dc.contributor.organization |
Bioinformatics for Molecular Biology and Genomics (BMBG) |
|
dc.contributor.organization |
Plant stress and natural variation |
|
dc.description.reviewstatus |
Peer reviewed |
|
dc.relation.doi |
https://doi.org/10.1093/plphys/kiab097 |
|
dc.relation.issn |
0032-0889 |
|
dc.rights.accesslevel |
openAccess |
|
dc.type.version |
publishedVersion |
|