منابع مشابه
Editorial overview: Cell nucleus: the nucleus: a dynamic organelle.
The nucleus is perhaps the defining feature of ‘eukaryotes’ (Greek ‘eu-’ (with) ‘-karyon’ (kernel, nucleus)), and the emperor of all eukaryotic organelles in terms of scale and complexity of organization. It is, of course, the repository for almost all genomic information, encoded in DNA sequences wrapped into chromatin as discrete polymer packages termed chromosomes, surrounded in turn by a do...
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FtsZ, an ancestral homolog of eukaryotic tubulin, assembles into the cytokinetic Z ring that directs cell division in bacteria. Recent results indicate that FtsZ is also used for division by chloroplasts, though not by mitochondria.
متن کاملOrganelle-nucleus cross-talk regulates plant intercellular communication via plasmodesmata.
We use Arabidopsis thaliana embryogenesis as a model system for studying intercellular transport via plasmodesmata (PD). A forward genetic screen for altered PD transport identified increased size exclusion limit (ise) 1 and ise2 mutants with increased intercellular transport of fluorescent 10-kDa tracers. Both ise1 and ise2 exhibit increased formation of twinned and branched PD. ISE1 encodes a...
متن کاملOrganelle Signaling: How Stressed Chloroplasts Communicate with the Nucleus
Plastids are able to relay information to the nucleus to regulate stress responses. A new genetic screen has identified an isoprenoid intermediate that accumulates in stressed plastids and acts as a novel retrograde signal.
متن کاملInhibitor-induced oxidation of the nucleus and cytosol in Arabidopsis thaliana: implications for organelle to nucleus retrograde signalling
Concepts of organelle-to-nucleus signalling pathways are largely based on genetic screens involving inhibitors of chloroplast and mitochondrial functions such as norflurazon, lincomycin (LINC), antimycin A (ANT) and salicylhydroxamic acid. These inhibitors favour enhanced cellular oxidation, but their precise effects on the cellular redox state are unknown. Using the in vivo reduction-oxidation...
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ژورنال
عنوان ژورنال: Nature Reviews Genetics
سال: 2006
ISSN: 1471-0056,1471-0064
DOI: 10.1038/nrg2022