Bcl-2 family members localize to tobacco chloroplasts and inhibit programmed cell death induced by chloroplast-targeted herbicides

In mammalian cells, apoptosis is often mediated via organelles. While apoptotic-like cell death occurs in plants, the mechanistic details are unresolved. Transgenic tobacco plants have been generated that harbour selected animal anti-apoptotic genes. Subcellular fractionation followed by western blo...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 55(2004), 408 vom: 27. Dez., Seite 2617-23
1. Verfasser: Chen, Shaorong (VerfasserIn)
Weitere Verfasser: Dickman, Martin B
Format: Aufsatz
Sprache:English
Veröffentlicht: 2004
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, U.S. Gov't, Non-P.H.S. Apoptosis Regulatory Proteins BCL2L1 protein, human Caenorhabditis elegans Proteins Ced-9 protein, C elegans Herbicides Proto-Oncogene Proteins Proto-Oncogene Proteins c-bcl-2 bcl-X Protein
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520 |a In mammalian cells, apoptosis is often mediated via organelles. While apoptotic-like cell death occurs in plants, the mechanistic details are unresolved. Transgenic tobacco plants have been generated that harbour selected animal anti-apoptotic genes. Subcellular fractionation followed by western blot analysis indicated that chloroplasts serve as a location for these animal anti-apoptotic proteins in addition to the established mitochondrial location. To explore the functional significance of this observation, tobacco plants were treated with three chloroplast-directed herbicides. Wild-type plants died and exhibited features associated with apoptosis. Transgenic plants survived and did not show any apoptotic-like characteristics. Moreover, the herbicide-induced apoptotic-like cell death was light requiring. It was concluded that chloroplasts may be involved in mediating certain types of plant programmed cell death 
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650 4 |a Research Support, U.S. Gov't, Non-P.H.S. 
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