De-Esterified Homogalacturonan Enrichment of the Cell Wall Region Adjoining the Preprophase Cortical Cytoplasmic Zone in Some Protodermal Cell Types of Three Land Plants.

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ID: 73018
2019
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Abstract
The distribution of highly de-esterified homogalacturonans (HGs) in dividing protodermal cells of the monocotyledon , the dicotyledon , and the fern was investigated in order to examine whether the cell wall region adjoining the preprophase band (PPB) is locally diversified. Application of immunofluorescence revealed that de-esterified HGs were accumulated selectively in the cell wall adjacent to the PPB in: (a) symmetrically dividing cells of stomatal rows of , (b) the asymmetrically dividing protodermal cells of , (c) the symmetrically dividing guard cell mother cells (GMCs) of and , and (d) the symmetrically dividing protodermal cells of . A common feature of the above cell types is that the cell division plane is defined by extrinsic cues. The presented data suggest that the PPB cortical zone-plasmalemma and the adjacent cell wall region function in a coordinated fashion in the determination/accomplishment of the cell division plane, behaving as a continuum. The de-esterified HGs, among other possible functions, might be involved in the perception and the transduction of the extrinsic cues determining cell division plane in the examined cells.
Reference Key
giannoutsou2019deesterifiedinternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Giannoutsou, Eleni;Galatis, Basil;Apostolakos, Panagiotis;
Journal International journal of molecular sciences
Year 2019
DOI
E81
URL
Keywords
2f4 jim5 de-esterified homogalacturonans pectins preprophase band protodermal cells

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