Plastid-to-nucleus signalling.
The function of the eukaryotic cell depends on the reciprocal interaction between its different compartments. Plastids emit signals that regulate nuclear gene expression to ensure the stoichiometric assembly of plastid protein complexes and to initiate macromolecular reorganisation in response to environmental cues. It is now clear that several different plastid processes produce signals that influence the expression of photosynthetic genes in the nucleus. The genome uncoupled (gun) mutants recently revealed one of the plastid signals, the chlorophyll intermediate Mg-protoporphyrinIX.
Strand
Asa
A
Umeå Plant Science Centre, Department of Forest Genetics and Plant Physiology, Swedish University of Agricultural Sciences, S-901 83 Umeå, Sweden. Asa.Strand@genfys.slu.se
D002467:Cell Nucleus / Q000378:metabolism*; D018506:Gene Expression Regulation, Plant; D008954:Models, Biological; D010940:Plant Proteins / Q000235:genetics / Q000378:metabolism; D018087:Plastids / Q000378:metabolism*; D011524:Protoporphyrins / Q000378:metabolism; D015398:Signal Transduction
D010940:Plant Proteins; D011524:Protoporphyrins; C028025:protoporphyrin IX