Latrunculin B-Induced Plant Dwarfism: Plant Cell Elongation Is F-Actin-Dependent
نویسندگان
چکیده
منابع مشابه
Latrunculin B-induced plant dwarfism: Plant cell elongation is F-actin-dependent.
Marine macrolides latrunculins are highly specific toxins which effectively depolymerize actin filaments (generally F-actin) in all eukaryotic cells. We show that latrunculin B is effective on diverse cell types in higher plants and describe the use of this drug in probing F-actin-dependent growth and in plant development-related processes. In contrast to other eukaryotic organisms, cell divisi...
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The plant cell wall is a strong material that resists expansion when water is taken up by the protoplast; for cells to expand irreversibly, the existing wall architecture must be loosened to permit the insertion of newly synthesized wall polymers. Biochemical approaches have identified changes in wall composition that occur during growth and some of the enzymes involved in wall loosening, whils...
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An Arabidopsis cDNA (AtCAP1) that encodes a predicted protein of 476 amino acids highly homologous with the yeast cyclase-associated protein (CAP) was isolated. Expression of AtCAP1 in the budding yeast CAP mutant was able to rescue defects such as abnormal cell morphology and random budding pattern. The C-terminal domain, 158 amino acids of AtCAP1 possessing in vitro actin binding activity, wa...
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Dynamic rearrangements of the actin cytoskeleton are one of the fastest responses of the plant cell to environmental signals and an important part of developmental programs. The turnover rate of actin microfilaments and supramolecular structures is several orders higher than that of actin proteins and mRNAs. The high rate of actin polymerization in the cell is provided by specific nucleating ma...
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Plants exhibit an ultimate case of the intracellular motility involving rapid organelle trafficking and continuous streaming of the endoplasmic reticulum (ER). Although it was long assumed that the ER dynamics is actomyosin-driven, the responsible myosins were not identified, and the ER streaming was not characterized quantitatively. Here we developed software to generate a detailed velocity-di...
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ژورنال
عنوان ژورنال: Developmental Biology
سال: 2001
ISSN: 0012-1606
DOI: 10.1006/dbio.2000.0115