Journal Article

<i>Arabidopsis</i> Dynamin-Like Protein 2a (ADL2a), Like ADL2b, is Involved in Plant Mitochondrial Division

Shin-ichi Arimura, Gen Paul Aida, Masaru Fujimoto, Mikio Nakazono and Nobuhiro Tsutsumi

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 45, issue 2, pages 236-242
Published in print February 2004 | ISSN: 0032-0781
Published online February 2004 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pch024
Arabidopsis Dynamin-Like Protein 2a (ADL2a), Like ADL2b, is Involved in Plant Mitochondrial Division

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  • Biochemistry
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The Arabidopsis genome has two similar dynamin-like proteins, ADL2a and ADL2b (76.7% identity). ADL2a is reported to be localized in chloroplasts [Kang et al. (1998) Plant Mol. Biol. 38: 437], while ADL2b functions in mitochondrial division [Arimura and Tsutsumi (2002) Proc. Natl. Acad. Sci. USA 99: 5727]. Using GFP fusion proteins, we observed both ADL2a and ADL2b in portions of mitochondria but not in chloroplasts. Furthermore, cells transformed with ADL2a and ADL2b with a defective GTPase domain had normal chloroplasts but elongated mitochondria. These results imply that both ADL2b and ADL2a are involved in the division of plant mitochondria.

Keywords: Keywords: Dynamin-like protein — Mitochondrial division — Mitochondrial fission.; Abbreviations: ADL, Arabidopsis dynamin-like protein; CaMV, cauliflower mosaic virus; GFP, green fluorescent protein; RFP, red fluorescent protein (DsRed, Clontech); Mt-GFP, mitochondrial matrix-targeted green fluorescent protein.

Journal Article.  4356 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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