+ Translate
+ Most Popular
Cunninghamia lanceolata plantations in China
Mammalian lairs in paleo ecological studies and palynology
Studies on technological possibilities in utilization of anhydrous milk fat for production of recombined butter-like products
Should right-sided fibroelastomas be operated upon?
Large esophageal lipoma
Apoptosis in the mammalian thymus during normal histogenesis and under various in vitro and in vivo experimental conditions
Poissons characoides nouveaux ou non signales de l'Ilha do Bananal, Bresil
Desensitizing efficacy of Colgate Sensitive Maximum Strength and Fresh Mint Sensodyne dentifrices
Administration of fluid by subcutaneous infusion: revival of a forgotten method
Tundra mosquito control - an impossible dream?
Schizophrenia for primary care providers: how to contribute to the care of a vulnerable patient population
Geochemical pattern analysis; method of describing the Southeastern limestone regional aquifer system
Incidence of low birth weights in a hospital of Mexico City
Graded management intensity of grassland systems for enhancing floristic diversity
Microbiology and biochemistry of cheese and fermented milk
The ember tetra: a new pygmy characid tetra from the Rio das Mortes, Brazil, Hyphessobrycon amandae sp. n. (Pisces, Characoidei)
Risk factors of contrast-induced nephropathy in patients after coronary artery intervention
Renovation of onsite domestic wastewater in a poorly drained soil
Observations of the propagation velocity and formation mechanism of burst fractures caused by gunshot
Systolic blood pressure in a population of infants in the first year of life: the Brompton study
Haematological studies in rats fed with metanil yellow
Studies on pasteurellosis. I. A new species of Pasteurella encountered in chronic fowl cholera
Dormancy breaking and germination of Acacia salicina Lindl. seeds
therapy of lupus nephritis. a two-year prospective study

Structural sterols are involved in both the initiation and tip growth of root hairs in Arabidopsis thaliana

Structural sterols are involved in both the initiation and tip growth of root hairs in Arabidopsis thaliana

Plant Cell 22(9): 2999-3019

ISSN/ISBN: 1040-4651

PMID: 20841426

DOI: 10.1105/tpc.109.069880

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, they may predict branching events in mutants with branching root hairs. Structural sterols were detected using the sterol complexing fluorochrome filipin. Application of filipin caused a rapid, concentration-dependent decrease in tip growth. Filipin-complexed sterols accumulated in globular structures that fused to larger FM4-64-positive aggregates in the tip, so-called filipin-induced apical compartments, which were closely associated with the plasma membrane. The plasma membrane appeared malformed and the cytoarchitecture of the tip zone was affected. Trans-Golgi network/early endosomal compartments containing molecular markers, such as small Rab GTPase RabA1d and SNARE Wave line 13 (VTI12), locally accumulated in these filipin-induced apical compartments, while late endosomes, endoplasmic reticulum, mitochondria, plastids, and cytosol were excluded from them. These data suggest that the local distribution and apical accumulation of structural sterols may regulate vesicular trafficking and plasma membrane properties during both initiation and tip growth of root hairs in Arabidopsis.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 055954151

Download citation: RISBibTeXText

Related references

AtALMT3 is Involved in Malate Efflux Induced by Phosphorus Deficiency in Arabidopsis thaliana Root Hairs. Plant and Cell Physiology 60(1): 107-115, 2019

SRPP, a Cell Wall Protein is Involved in Development and Protection of Seeds and Root Hairs in Arabidopsis thaliana. Plant and Cell Physiology 58(4): 760-769, 2017

Building a hair: tip growth in Arabidopsis thaliana root hairs. Philosophical Transactions of the Royal Society of London. Series B Biological Sciences 357(1422): 815-821, 2002

Microtubules regulate tip growth and orientation in root hairs of Arabidopsis thaliana. Plant Journal: for Cell and Molecular Biology 17(6): 657-665, 1999

Microtubules regulate tip growth and orientation in root hairs of Arabidopsis thaliana. The Plant Journal 17(6): 657-665, 1999

Arabidopsis thaliana Rop GTPases are localized to tips of root hairs and control polar growth. Embo Journal 20(11): 2779-2788, 2001

The Density and Length of Root Hairs Are Enhanced in Response to Cadmium and Arsenic by Modulating Gene Expressions Involved in Fate Determination and Morphogenesis of Root Hairs in Arabidopsis. Frontiers in Plant Science 7: 1763, 2016

Genetic analysis of the function of proline-rich structural cell wall proteins in root hairs and guard cells of Arabidopsis thaliana. Plant Biology (Rockville) : 31, 2002

Defective control of growth rate and cell diameter in tip-growing root hairs of the rhd4 mutant of Arabidopsis thaliana. Canadian Journal of Botany 77(4): 494-507, 1999

A Sec14p-nodulin domain phosphatidylinositol transfer protein polarizes membrane growth of Arabidopsis thaliana root hairs. Journal of Cell Biology 168(5): 801-812, 2005

Roles of plasma membrane proton ATPases AHA2 and AHA7 in normal growth of roots and root hairs in Arabidopsis thaliana. Physiologia Plantarum 166(3): 848-861, 2019

The role of root system architecture and root hairs in promoting anchorage against uprooting forces in Allium cepa and root mutants of Arabidopsis thaliana. Journal of Experimental Botany 53(367): 333-340, 2002

Sodium chloride reduces growth and cytosolic calcium, but does not affect cytosolic pH, in root hairs of Arabidopsis thaliana L. Journal of Experimental Botany 54(385): 1269-1280, 2003

Radial expansion of root cells and elongation of root hairs of Arabidopsis thaliana induced by massive doses of gamma irradiation. Plant and Cell Physiology 45(11): 1557-1565, 2004

TPST is involved in fructose regulation of primary root growth in Arabidopsis thaliana. Plant Molecular Biology 103(4-5): 511-525, 2020