Chloroplast suppressors that act on a mitochondrial mutation in Chlamydomonas reinhardtii |
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Authors: | P Bennoun and M Delosme |
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Institution: | (1) Institut de Biologie Physico-Chimique, Centre National de la Recherche Scientifique; UPR 1261, 13, rue Pierre et Marie Curie, F-75005 Paris; France e-mail : bennoun@ibpc.fr Tel.: +33-1-43252609; Fax: +33-1-40468331, FR |
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Abstract: | We report genetic evidence supporting the existence of suppressor genes in the chloroplast that act on a mitochondrial mutation
that impairs heterotrophic growth in the green alga Chlamydomonas reinhardtii. One of these suppressors also acts on a point mutation in the rbcL gene in the chloroplast. These results are consistent with previous data showing that mitochondrial protein synthesis depends
on chloroplast protein synthesis in C. reinhardtii. The nature of the interaction between chloroplasts and mitochondria is discussed in light of the requirement for import
of tRNAs by plant mitochondria.
Received: 28 January 1999 / Accepted: 29 April 1999 |
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Keywords: | Chlamydomonas reinhardtii Chloroplast Mitochondria Suppressor mutation tRNA import |
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