Antisense inhibition of the photosystem I antenna protein Lhca4 in Arabidopsis thaliana
1997 (English)In: Plant Physiology, ISSN 0032-0889, E-ISSN 1532-2548, Vol. 115, no 4, 1525-1531 p.Article in journal (Refereed) Published
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, 1525-1531 p.
IdentifiersURN: urn:nbn:se:umu:diva-44610ISI: 000071040500025OAI: oai:DiVA.org:umu-44610DiVA: diva2:434834