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Antisense inhibition of the photosystem I antenna protein Lhca4 in Arabidopsis thaliana
Umeå University, Faculty of Science and Technology, Department of Plant Physiology. Umeå University, Faculty of Science and Technology, Umeå Plant Science Centre (UPSC).ORCID iD: 0000-0002-7906-6891
1997 (English)In: Plant Physiology, ISSN 0032-0889, E-ISSN 1532-2548, Vol. 115, no 4, p. 1525-1531Article in journal (Refereed) Published
Abstract [en]

The function of Lhca4, a gene encoding the photosystem I type IV chlorophyll a/b-binding protein complex in Arabidopsis, was investigated using antisense technology. Lhca4 protein was reduced in a number of mutant lines and abolished in one. The inhibition of protein was not correlated with the inhibition of mRNA. No depletion of Lhca1 was observed, but the low-temperature fluorescence emission spectrum was drastically altered in the mutants. The emission maximum was blue-shifted by 6 nm, showing that chlorophyll molecules bound to Lhca4 are responsible for most of the long-wavelength fluorescence emission. Some mutants also showed an unexplainable delay in flowering time and an increase in seed weight.

Place, publisher, year, edition, pages
1997. Vol. 115, no 4, p. 1525-1531
Identifiers
URN: urn:nbn:se:umu:diva-44610ISI: 000071040500025OAI: oai:DiVA.org:umu-44610DiVA, id: diva2:434834
Available from: 2011-08-16 Created: 2011-06-09 Last updated: 2017-12-08

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