Arabidopsis CNGC14 Mediates Calcium Influx Required for Tip Growth in Root Hairs
نویسندگان
چکیده
منابع مشابه
TRH1 encodes a potassium transporter required for tip growth in Arabidopsis root hairs.
Root hair initiation involves the formation of a bulge at the basal end of the trichoblast by localized diffuse growth. Tip growth occurs subsequently at this initiation site and is accompanied by the establishment of a polarized cytoplasmic organization. Arabidopsis plants homozygous for a complete loss-of-function tiny root hair 1 (trh1) mutation were generated by means of the T-DNA-tagging m...
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Root hairs show highly localized cell expansion focused to their growing tips. This growth pattern is accomplished through restriction of secretion to the elongating apex and modulation of cell wall properties, with the wall just behind the tip becoming rigidified to resist the lateral expansive forces of turgor. In this report we show that root hairs exhibit oscillating growth that is associat...
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Structural sterols are abundant in the plasma membrane of root apex cells in Arabidopsis thaliana. They specifically accumulate in trichoblasts during the prebulging and bulge stages and show a polar accumulation in the tip during root hair elongation but are distributed evenly in mature root hairs. Thus, structural sterols may serve as a marker for root hair initiation and growth. In addition,...
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ژورنال
عنوان ژورنال: Molecular Plant
سال: 2017
ISSN: 1674-2052
DOI: 10.1016/j.molp.2017.02.007