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Arabidopsis plants grown in the field and climate chambers significantly differ in leaf morphology and photosystem components
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC). Umeå University, Faculty of Science and Technology, Department of Chemistry.
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
Umeå University, Faculty of Science and Technology, Department of Chemistry. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).
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2012 (English)In: BMC Plant Biology, ISSN 1471-2229, E-ISSN 1471-2229, Vol. 12, 6- p.Article in journal (Refereed) Published
Abstract [en]

Background:Plants exhibit phenotypic plasticity and respond to differences in environmental conditions by acclimation. We have systematically compared leaves of Arabidopsis thaliana plants grown in the field and under controlled low, normal and high light conditions in the laboratory to determine their most prominent phenotypic differences.

Results: Compared to plants grown under field conditions, the "indoor plants" had larger leaves, modified leaf shapes and longer petioles. Their pigment composition also significantly differed; indoor plants had reduced levels of xanthophyll pigments. In addition, Lhcb1 and Lhcb2 levels were up to three times higher in the indoor plants, but differences in the PSI antenna were much smaller, with only the low-abundance Lhca5 protein showing altered levels. Both isoforms of early-light-induced protein (ELIP) were absent in the indoor plants, and they had less non-photochemical quenching (NPQ). The field-grown plants had a high capacity to perform state transitions. Plants lacking ELIPs did not have reduced growth or seed set rates, but their mortality rates were sometimes higher. NPQ levels between natural accessions grown under different conditions were not correlated.

Conclusion: Our results indicate that comparative analysis of field-grown plants with those grown under artificial conditions is important for a full understanding of plant plasticity and adaptation.

Place, publisher, year, edition, pages
BioMed Central, 2012. Vol. 12, 6- p.
Keyword [en]
Arabidopsis thaliana, Carotenoids, Chlorophyll fluorescence, Early light inducible proteins (ELIPs), Field Plants, Indoor Plants, Light harvesting proteins (LHCs)
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:umu:diva-51175DOI: 10.1186/1471-2229-12-6OAI: oai:DiVA.org:umu-51175DiVA: diva2:476444
Note
Published: 11 January 2012Available from: 2012-01-12 Created: 2012-01-12 Last updated: 2017-12-08Bibliographically approved

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Mishra, YogeshJohansson Jankanpää, HannaKiss, Anett ZFunk, ChristianeSchröder, Wolfgang PJansson, Stefan
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Department of Plant PhysiologyUmeå Plant Science Centre (UPSC)Department of Chemistry
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