scholarly journals Type XVII collagen interacts with the aPKC‐PAR complex and maintains epidermal cell polarity

2020 ◽  
Vol 30 (1) ◽  
pp. 62-67 ◽  
Author(s):  
Mika Watanabe ◽  
Hideyuki Kosumi ◽  
Shin‐Ichi Osada ◽  
Shota Takashima ◽  
Yunan Wang ◽  
...  
Keyword(s):  
Cell Polarity ◽  
Epidermal Cell ◽  
Xvii Collagen

scholarly journals Regions within a single epidermal cell of Drosophila can be planar polarised independently

eLife ◽  
2015 ◽  
Vol 4 ◽  
Author(s):  
Miguel Rovira ◽  
Pedro Saavedra ◽  
José Casal ◽  
Peter A Lawrence
Keyword(s):  
Single Cell ◽  
Larval Development ◽  
Cell Polarity ◽  
Epidermal Cell ◽  
Planar Cell Polarity ◽  
Different Types ◽  
Local Comparison ◽  
Epithelial Sheets

Planar cell polarity (PCP), the coordinated and consistent orientation of cells in the plane of epithelial sheets, is a fundamental and conserved property of animals and plants. Up to now, the smallest unit expressing PCP has been considered to be an entire single cell. We report that, in the larval epidermis of Drosophila, different subdomains of one cell can have opposite polarities. In larvae, PCP is driven by the Dachsous/Fat system; we show that the polarity of a subdomain within one cell is its response to levels of Dachsous/Fat in the membranes of contacting cells. During larval development, cells rearrange (<xref ref-type="bibr" rid="bib25">Saavedra et al., 2014</xref>) and when two subdomains of a single cell have different types of neighbouring cells, then these subdomains can become polarised in opposite directions. We conclude that polarisation depends on a local comparison of the amounts of Dachsous and Fat within opposing regions of a cell's membrane.

Patterns of epidermal cell polarity in healing open wounds

1981 ◽  
Vol 31 (6) ◽  
pp. 456-462 ◽  
Author(s):  
Stanley A. Alexander
Keyword(s):  
Cell Polarity ◽  
Epidermal Cell

scholarly journals Mechanism of Hair Loss from the Point of View of Epidermal Cell Polarity

10.5772/66735 ◽  
2017 ◽  
Author(s):  
Shin-Ichi Osada
Keyword(s):  
Cell Polarity ◽  
Epidermal Cell ◽  
Hair Loss ◽  
Point Of View

scholarly journals Barley disease susceptibility factor RACB acts in epidermal cell polarity and positioning of the nucleus

2016 ◽  
Vol 67 (11) ◽  
pp. 3263-3275 ◽  
Author(s):  
Björn Scheler ◽  
Vera Schnepf ◽  
Carolina Galgenmüller ◽  
Stefanie Ranf ◽  
Ralph Hückelhoven
Keyword(s):  
Cell Polarity ◽  
Epidermal Cell ◽  
Disease Susceptibility ◽  
Susceptibility Factor

scholarly journals Plasticity of both planar cell polarity and cell identity during the development of Drosophila

eLife ◽  
2014 ◽  
Vol 3 ◽  
Author(s):  
Pedro Saavedra ◽  
Jean-Paul Vincent ◽  
Isabel M Palacios ◽  
Peter A Lawrence ◽  
José Casal
Keyword(s):  
Pattern Formation ◽  
Cell Polarity ◽  
Epidermal Cell ◽  
Larval Stage ◽  
Planar Cell Polarity ◽  
Single Cells ◽  
Larval Growth ◽  
Larval Stages ◽  
Larval Moult ◽  
Genetic Mechanisms

Drosophila has helped us understand the genetic mechanisms of pattern formation. Particularly useful have been those organs in which different cell identities and polarities are displayed cell by cell in the cuticle and epidermis (<xref ref-type="bibr" rid="bib27">Lawrence, 1992</xref>; <xref ref-type="bibr" rid="bib5">Bejsovec and Wieschaus, 1993</xref>; <xref ref-type="bibr" rid="bib17">Freeman, 1997</xref>). Here we use the pattern of larval denticles and muscle attachments and ask how this pattern is maintained and renewed over the larval moult cycles. During larval growth each epidermal cell increases manyfold in size but neither divides nor dies. We follow individuals from moult to moult, tracking marked cells and find that, as cells are repositioned and alter their neighbours, their identities change to compensate and the pattern is conserved. Single cells adopting a new fate may even acquire a new polarity: an identified cell that makes a forward-pointing denticle in the first larval stage may make a backward-pointing denticle in the second and third larval stages.

scholarly journals Dissection of Arabidopsis ADP-RIBOSYLATION FACTOR 1 Function in Epidermal Cell Polarity

2005 ◽  
Vol 17 (2) ◽  
pp. 525-536 ◽  
Author(s):  
Jian Xu ◽  
Ben Scheres
Keyword(s):  
Cell Polarity ◽  
Epidermal Cell ◽  
Adp Ribosylation ◽  
Adp Ribosylation Factor

Ectodesmata as Revealed By Freeze-Etch Preparations of Plant Epidermal Cell Walls

1973 ◽  
Vol 31 ◽  
pp. 468-469
Author(s):  
N.C. Lyon ◽  
W. C. Mueller
Keyword(s):  
Electron Microscopy ◽  
Acetic Acid ◽  
Nitric Acid ◽  
Oxalic Acid ◽  
Light Microscopy ◽  
Epidermal Cell ◽  
Cell Walls ◽  
Plant Viruses ◽  
Plant Leaves ◽  
Thin Sections

Schumacher and Halbsguth first demonstrated ectodesmata as pores or channels in the epidermal cell walls in haustoria of Cuscuta odorata L. by light microscopy in tissues fixed in a sublimate fixative (30% ethyl alcohol, 30 ml:glacial acetic acid, 10 ml: 65% nitric acid, 1 ml: 40% formaldehyde, 5 ml: oxalic acid, 2 g: mecuric chloride to saturation 2-3 g). Other workers have published electron micrographs of structures transversing the outer epidermal cell in thin sections of plant leaves that have been interpreted as ectodesmata. Such structures are evident following treatment with Hg++ or Ag+ salts and are only rarely observed by electron microscopy. If ectodesmata exist without such treatment, and are not artefacts, they would afford natural pathways of entry for applied foliar solutions and plant viruses.

Role of actin in epidermal cell indirect adhesion.

1991 ◽  
Vol 53 (1) ◽  
pp. 3-6
Author(s):  
SHIN'ICHI INOHARA
Keyword(s):  
Epidermal Cell
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