Chloroplast suppressors that act on a mitochondrial mutation in Chlamydomonas reinhardtii.
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.
Bennoun
P
P
Institut de Biologie Physico-Chimique, Centre National de la Recherche Scientifique, UPR 1261, Paris, France. bennoun@ibpc.fr
Delosme
M
M
D000818:Animals; D001692:Biological Transport; D002451:Cell Compartmentation; D016825:Chlamydomonas reinhardtii / Q000235:genetics*; D002736:Chloroplasts / Q000235:genetics*; D008928:Mitochondria / Q000235:genetics*; D009154:Mutation; D012343:RNA, Transfer / Q000378:metabolism; D012273:Ribulose-Bisphosphate Carboxylase / Q000235:genetics; D013489:Suppression, Genetic
D012343:RNA, Transfer; D012273:Ribulose-Bisphosphate Carboxylase