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Arimura, S. (Tokyo Univ. (Japan)); Aida, G.P; Fujimoto, M; Nakazono, M; Tsutsumi, N
Plant and cell physiology, 02/2004, Letnik: 45, Številka: 2Journal Article
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.
