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Nodal endoplasmic reticulum, a specialized form of endoplasmic reticulum found in gravity-sensing root tip columella cells
; ...Reticulum Found in Gravity-Sensing Root Tip Columella Cells1 The endoplasmic reticulum (ER) of columella root cap cells has been postulated to play...have re-examined the ultrastructure of columella cells in tobacco (Nicotiana tabacum) root...
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PREVENTION OF HANGING COLUMELLA IN OPEN RHINOPLASTY
; ...the causes of postoperative hanging columella, distinguishing this entity from similar...Comparative measurements of the alar-columellar complex were made before and after operation...38 women and 10 men), 19 true hanging columellae were detected. In the 34 patients with...
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Surgery of the nasal columella in external valve collapse
; ...focusing on the role that surgery of the columella plays in solving this problem. Thirty-sev...varied depending on the width of the columella base: alarplasty in cases with a narrow to normal columella, and columelloplasty in the presence...
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Reconstruction of the Columella With Bilateral Nostril Sill Flaps
; The treatment of total columellar defects is very difficult, and there...with a defect involving the entire columella. Reconstruction of the defect was...and should be considered for total columellar reconstruction. Key Words: columella...
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Changes in root cap pH are required for the gravity response of the Arabidopsis root
; Although the columella cells of the root cap have been identified...Concomitantly, cytoplasmic pH increased in columella cells from 7.2 to 7.6 but was unchanged...10 min. Altering the gravity-related columella cytoplasmic pH shift with caged protons...
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Plastid sedimentation kinetics in roots of wild-type and starch-deficient mutants of arabidopsis
; ...Sedimentation and movement of plastids in columella cells of the root cap were measured in...long been hypothesized that the central columella cells of the root cap are the graviperceptive...Direct evidence supporting the role of columella cells as statocytes includes work by...
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Hydrotropism interacts with gravitropism by degrading amyloplasts in seedling roots of Arabidopsis and radish1
; ...the starch anchors, amyloplasts, in root columella cells of Arabidopsis and radish (Raphanus...simultaneous reduction in starch content in columella cells. Rapid degradation of amyloplasts in columella cells also occurred in the water-stressed...
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ALTERED RESPONSE TO GRAVITY Is a Peripheral Membrane Protein That Modulates Gravity-Induced Cytoplasmic Alkalinization and Lateral Auxin Transport in Plant Statocytes
; ...cytosolic alkalinization of root cap columella cells that normally occurs very rapidly...al., 1998). These cells constitute the columella of the root cap and the endodermal layer...2+^ fluxes and alkalinization of the columella cytoplasm have been observed in response...
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ADP-glucose pyrophosphorylase is located in the plastid in developing tomato fruit
; ...Plastids prepared from crude homogenates of columella and pericarp, the starch-accumulating...isoforms of AGPase also occur in the columella and placenta of young tomato fruit. The...on separate samples of pericarp and of columella plus placenta (subsequently referred...
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The ARG1-LIKE2 gene of Arabidopsis functions in a gravity signal transduction pathway that is genetically distinct from the PGM pathway1
; ...polar auxin transport. Also, their cap columella cells accumulate starch similarly to...specialized cells (statocytes) located in the columella region of the root cap and in the starch...should be transported from the root cap columella to the elongation zones where the gravitropic...
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