| Plant cells without detectable plastids are generated in the crumpled leaf mutant of Arabidopsis thaliana. | |
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MedLine Citation:
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PMID: 19318374 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Plastids are maintained in cells by proliferating prior to cell division and being partitioned to each daughter cell during cell division. It is unclear, however, whether cells without plastids are generated when plastid division is suppressed. The crumpled leaf (crl) mutant of Arabidopsis thaliana is a plastid division mutant that displays severe abnormalities in plastid division and plant development. We show that the crl mutant contains cells lacking detectable plastids; this situation probably results from an unequal partitioning of plastids to each daughter cell. Our results suggest that crl has a partial defect in plastid expansion, which is suggested to be important in the partitioning of plastids to daughter cells when plastid division is suppressed. The absence of cells without detectable plastids in the accumulation and replication of chloroplasts 6 (arc6) mutant, another plastid division mutant of A. thaliana having no significant defects in plant morphology, suggests that the generation of cells without detectable plastids is one of the causes of the developmental abnormalities seen in crl plants. We also demonstrate that plastids with trace or undetectable amounts of chlorophyll are generated from enlarged plastids by a non-binary fission mode of plastid replication in both crl and arc6. |
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Authors:
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Yuling Chen; Tomoya Asano; Makoto T Fujiwara; Shigeo Yoshida; Yasunori Machida; Yasushi Yoshioka |
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Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't Date: 2009-03-24 |
Journal Detail:
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Title: Plant & cell physiology Volume: 50 ISSN: 1471-9053 ISO Abbreviation: Plant Cell Physiol. Publication Date: 2009 May |
Date Detail:
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Created Date: 2009-05-18 Completed Date: 2009-06-02 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9430925 Medline TA: Plant Cell Physiol Country: Japan |
Other Details:
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Languages: eng Pagination: 956-69 Citation Subset: IM |
Affiliation:
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Division of Biological Science, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Arabidopsis
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cytology,
embryology,
genetics,
growth & development* Arabidopsis Proteins / genetics* Cell Division Chlorophyll / metabolism Microscopy, Confocal Mutation Plant Leaves / cytology*, genetics, growth & development Plants, Genetically Modified / cytology, embryology, genetics, growth & development Plastids / genetics* |
| Chemical | |
Reg. No./Substance:
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0/ARC6 protein, Arabidopsis; 0/Arabidopsis Proteins; 0/CRUMPLED LEAF protein, Arabidopsis; 1406-65-1/Chlorophyll |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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