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Plant Cell Biology and Microscopy

Volume Electron tomography in plant cell biology Marisa S Otegui. To whom correspondence should be addressed. E-mail: otegui wisc. Oxford Academic. Google Scholar. Jannice G Pennington. Cite Citation. Permissions Icon Permissions. Abstract Electron tomography ET approaches are based on the imaging of a biological specimen at different tilt angles by transmission electron microscopy TEM.

Issue Section:. You do not currently have access to this article. Download all figures. Sign in. Not all pathogenic species are equal in virulence—that is, they do not produce the same amounts of the substances…. The cells of all plants are eukaryotic, because they possess a nucleus and membrane-bound organelles, such as chloroplasts, mitochondria, glyoxysomes, peroxisomes, and vacuoles. The thousands of metabolic reactions that take place in the cell are.

Plant cell biology through the window of the highly synchronized tobacco BY-2 cell line

Vegetable cells, as plant cells, have rigid cell walls and are glued together by various polysaccharides such as cellulose, hemicellulose, and pectin. In animal cells, there appear to be two redundant signals sent to the cell cortex to mark the cortical division site, one from the central spindle and another from the spindle asters Fededa and Gerlich, However, there is a large degree of variability among cell types and organisms as to which is the primary signal Fededa and Gerlich, On the surface, cell division plane specification in plants appears to be quite distinct from the processes in animal cells or yeast.

The majority of plant cells establish a cortical division site in prophase using an actin- and microtubule-based structure known as the preprophase band. There is no analogous preprophase band in animal cells.

  1. Electron tomography in plant cell biology | Microscopy | Oxford Academic?
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Instead the central spindle and later the midbody of animal cells contain key molecules that signal between the mitotic spindle and the cortical division site Fededa and Gerlich, Thus maintenance of the cell division site might have striking parallels between animals and plants. In plants, due to the presence of the cell wall, placement of the cell division plane is critically important for subsequent cell shape and fate.

Thus plants provide an excellent system in which to study division plane specification and maintenance.

Microscopy | Max Planck Institute of Molecular Plant Physiology

By studying how these proteins function and are regulated during cell division, a mechanistic understanding will emerge and may provide further parallels between plant and animal cells. The cell wall is an example of a defining and distinguishing feature that might suggest that the cell biology of plants is fundamentally different from that of animals.

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Like other features, however, the cell wall poses many unique opportunities and facilitates cell biological studies because it enforces a simple and reproducible cell geometry. Because plants are multicellular and include well-established, highly manipulable model systems, they represent exciting experimental systems that, when exploited, will likely provide fundamental new insights into cell biology applicable throughout the eukaryotic tree of life.

National Center for Biotechnology Information , U. Journal List Mol Biol Cell v. Mol Biol Cell. Magdalena Bezanilla 1. Keith G. Kozminski, Monitoring Editor University of Virginia.

Author information Article notes Copyright and License information Disclaimer. This article is distributed by The American Society for Cell Biology under license from the author s.

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Two months after publication it is available to the public under an Attribution—Noncommercial—Share Alike 3. Abstract Historically, cell biologists studied organisms that represented a reasonable sampling of life's diversity, whereas recently research has narrowed into a few model systems. Abbreviation used: CSI cellulose synthase interacting. Footnotes mbc. Making parallel lines meet: transferring information from microtubules to extracellular matrix. Cell Adh Migr.

Plant Cell. In: Miscellaneous Botanical Works. London: Ray Society; On the organs and mode of fecundation of Orchidex and Asclepiadea; pp. Straighten up and fly right: microtubule dynamics and organization of non-centrosomal arrays in higher plants. Curr Opin Cell Biol.


Computer simulation and mathematical models of the noncentrosomal plant cortical microtubule cytoskeleton. Molecular control of animal cell cytokinesis. Nat Cell Biol. Identification of a cellulose synthase-associated protein required for cellulose biosynthesis. Microtubules and fibrils in the cytoplasm of Coleus cells undergoing secondary wall deposition.