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Biological Chemistry

Editor-in-Chief: Brüne, Bernhard

Editorial Board Member: Buchner, Johannes / Lei, Ming / Ludwig, Stephan / Sies, Helmut / Turk, Boris / Wittinghofer, Alfred


SCImago Journal Rank (SJR) 2015: 1.607
Source Normalized Impact per Paper (SNIP) 2015: 0.751
Impact per Publication (IPP) 2015: 2.609

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1437-4315
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Differential accumulation of plastid preprotein translocon components during spruce (Picea abies L. Karst.) needle development

Hrvoje Fulgosi1 / Hrvoje Lepeduš2 / Vera Cesar3 / Nikola Ljubešić4

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Corresponding author

Citation Information: Biological Chemistry. Volume 386, Issue 8, Pages 777–783, ISSN (Online) 1437-4315, ISSN (Print) 1431-6730, DOI: 10.1515/BC.2005.091, September 2005

Publication History

Received:
March 29, 2005
Accepted:
June 6, 2005
Published Online:
2005-09-06

Abstract

We demonstrate that basic components of the plastid protein-import apparatus originally found in pea, Toc34, Toc159, and Tic110, are also conserved in evolutionarily younger gymnosperms. We show that multiple isoforms of the preprotein receptor Toc34 differentially accumulate in various stages of needle development, while the amounts of Toc159 drastically decrease during chloroplast morphogenesis. Spruce Toc34 and Toc159 receptors are able to recognise and interact with the angiosperm precursor of the Rubisco small subunit. Young proplastids found in closed buds contain a highly elevated number of protein translocation complexes equipped with only two types of outer envelope receptors, Toc159 and a 30-kDa Toc34-related protein. Photosystem II (PSII) can already be assembled in a fully functional complex at this very early stage of needle development, suggesting that no additional receptor isoforms are needed for translocation of all necessary PSII components. We conclude that the accumulation of evolutionarily conserved plastid preprotein translocation components is differentially regulated during spruce needle development.

Keywords: plastid biogenesis; proplastids; protein translocation; Tic; Toc

Citing Articles

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[1]
Lan-Xin Shi and Steven M. Theg
Biochimica et Biophysica Acta (BBA) - Molecular Cell Research, 2013, Volume 1833, Number 2, Page 314
[2]
Zorana Katanić, Lejla Atić, Dž. Ferhatović, Vera Cesar, and H. Lepeduš
Acta Biologica Hungarica, 2012, Volume 63, Number 2, Page 218
[3]
Hrvoje Lepeduš, Lidija Begović, Selma MlinarIć, Domagoj Šimić, Ivna Štolfa, Nada Parađiković, Zvonimir Užarević, Vlatka Jurković, and Vera Cesar
Acta Botanica Croatica, 2011, Volume 70, Number 2
[4]
Hrvoje Lepeduš, Vlatka Gaća, Marija Viljevac, Spomenka Kovač, Hrvoje Fulgosi, Domagoj Šimić, Vlatka Jurković, and Vera Cesar
Plant Physiology and Biochemistry, 2011, Volume 49, Number 4, Page 368
[6]
H. Lepeduš, H. Fulgosi, Mirta Benšić, and Vera Cesar
Acta Biologica Hungarica, 2008, Volume 59, Number 2, Page 217
[7]
B. Vooková, J. Machava, A. Šalgovičová, and A. Kormuťák
Biologia Plantarum, 2010, Volume 54, Number 1, Page 177

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