Last edited by Jujinn
Friday, May 15, 2020 | History

4 edition of development of root hairs ... found in the catalog.

development of root hairs ...

by Laetitia Morris Snow

  • 19 Want to read
  • 32 Currently reading

Published by The University of Chicago press in Chicago .
Written in English

    Subjects:
  • Plant morphology,
  • Root hairs

  • Edition Notes

    SeriesContributions from the Hull Botanical Laboratory ;, 74.
    Classifications
    LC ClassificationsQK644 .S67
    The Physical Object
    Pagination[1], 12-48 p.
    Number of Pages48
    ID Numbers
    Open LibraryOL6961569M
    LC Control Number05034291

      INTRODUCTION. Plant cell differentiation is a highly complex process that is precisely regulated in time and space, providing a critical control mechanism for the plant life cycle (Kang et al., ).Root hairs are specialized structures produced from root epidermal cells (Peterson and Farquhar, ).Root hairs expand the root surface area in the soil, facilitate plant growth and the Cited by: 1.   Root hairs increase the contact area of roots with soil and thereby enhance the capacity for solute uptake. The strict hair/non-hair pattern of Arabidopsis thaliana can change with nutrient deficiency or exposure to toxic elements, which modify root hair density. The effects of root hair density on cadmium (Cd) accumulation in shoots of arabidopsis genotypes with altered root hair development Cited by: 5.

      Root hairs play important roles for the acquisition of nutrients, microbe interaction and plant anchorage. In addition, root hairs provide an excellent model system to study cell patterning, differentiation and growth. Arabidopsis root hairs have been thoroughly studied to understand how plants regulate cell fate and growth in response to environmental by: 6.   Root hairs are valuable in taking up nutrients and water from the rhizosphere and serving as sites of interactions with soil microorganisms. By increasing the external surface area of the roots or interacting with rhizobacteria, root hairs directly and indirectly promote plant growth and yield. Transcriptome data can be used to understand root-hair development in by: 5.

    Length of root hairs on first-order and third-order lateral roots, density of root hairs on first-order lateral roots, and length of third-order lateral roots were significantly greater by 91%, 22%, 29%, and 48%, respectively, in the treated condition compared to the control. Root hairs often contribute to nutrient uptake from environments, but the contribution varies among nutrients. In Arabidopsis, two high-affinity sulfate transporters, SULTR1;1 and SULTR1;2, are responsible for sulfate uptake by roots. Their increased expression under sulfur deficiency (−S) stimulates sulfate uptake. Inspired by the higher and lower expression, respectively, of SULTR1;1 in Cited by: 3.


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Development of root hairs .. by Laetitia Morris Snow Download PDF EPUB FB2

INTRODUCTION. Root hairs are long tubular-shaped outgrowths from root epidermal cells. In Arabidopsis, root hairs are approximately 10 µm in diameter and can grow to be 1 mm or more in length ().Because they vastly increase the root surface area and effectively increase the root diameter, root hairs are generally thought to aid plants in nutrient acquisition, anchorage, and microbe.

with ease. Root hairs grow rapidly, at a rate of more than 1 μm/min, which facilitates studies of cell expansion. Perhaps most importantly, root hairs are not essential for plant viability, which permits the recovery and analysis of all types of mutants that alter root hair development and func-tion.

Also, root hairs become visible on seedling File Size: 1MB. In this study, confocal ratio analysis was used to image the relationship between cytoplasmic free calcium concentration ([Ca 2+] c) and the development of root hairs of Arabidopsis gh a localized change in [Ca 2+] c that preceded or predicted the site of root hair initiation could not be detected, once initiated the majority of emerging root hairs showed an elevated [Ca 2+] c Cited by:   The Arabidopsis root has a simple structure.

From a developmental perspective, the Arabidopsis root is a paragon of simplicity. A small number of stem cells at the tip of the root generate all of the cell types through stereotyped divisions followed by cell differentiation and regulated cell expansion (Fig. 1a).Because root growth is indeterminate, these processes are continual, resulting in.

Root hairs: Development, growth and evolution at the plant-soil interface Article (PDF Available) in Plant and Soil (1) September with 2, Reads How we measure 'reads'. Root hairs are tip-growing cells that originate from epidennal cells called trichoblasts.

Their role may be simply thought of as extending the surface area of the root to facilitate absorption of nutrients and water. However, as you will see in this book, the root hair is far more than that. To an. The initiation of root hairs is dependent on the RHD6 bHLH gene family and auxin to define the site of outgrowth.

Root hair elongation relies on polarized cell expansion at the growing tip, which involves multiple integrated processes including cell secretion, endomembrane trafficking, cytoskeletal organization, and cell wall modifications.

Formation. Root hair cells are outgrowths at a tip of the plant's roots. Root hair cells vary between 15 and 17 micrometres in diameter, and 80 to 1, micrometres in length. They are found only in the zone of maturation, and not the zone of elongation, possibly because any root hairs that arise are sheared off as the root elongates and moves through the soil.

The development of root hairs increases the root's effective surface area for nutrient and water uptake (Bibikova and Gilroy, ;Peterson and Farquhar, ), and in this case for oxygen uptake.

An overview of root hair development and patterning. Root hairs develop from a group of specialized epidermal cells referred to as trichoblasts (Leavitt, ) and are arranged in the epidermis in a species-dependent to their shorter cycle time, trichoblasts are generally shorter than non-hair-forming atrichoblasts, less vacuolated and have denser cytoplasm (Grierson et al., ).Cited by: Free 2-day shipping.

Buy The Development of Root Hairs at General hormonal regulation of root hair development Root hair development starts with the determination of whether an epidermal cell becomes a root hair (H; trichoblast) or non-root hair (N; atrichoblast) cell, giving rise to distinct hair and non-hair cell files in the Arabidopsis root (Fig.

1. The development of root hairs of Arabidopsis decreased progressively with increasing Mg supply and Mg concentration in plants (Fig. Moreover, the growth of root hairs in mrs2‐1mrs2‐5 mutant affected in Mg transport and homeostasis was not affected by Mg deficiency and was hardly inhibited by high Mg (Fig.

10). These results implied that Cited by: Root hair growth starts at the base of root hair cells, and the arrangement of the cortical ER changes as the root hair grows (Ridge et al., ).Expanding root hairs, however, have extensive perforated sheets of cortical ER, which transform quite abruptly into a loose reticulum at the basipetal end of the elongation reticulum compacts in the root hair beginning at sites where root.

Root hair growth starts at the base of root hair cells, and the arrangement of the cortical ER changes as the root hair grows (Ridge et al., ).Expanding root hairs, however, have extensive perforated sheets of cortical ER, which transform quite abruptly into a loose.

the hairs in these follicles gradually become thinner and shorter until they look like vellus hairs; On the head, there are also two periods of hair development in which hair growth begins at the forehead and then extends to the back of the neck.

Then at 2- 3 months old, the first hairs may be shed naturally over an area on the back of the head. Get this from a library.

Root hairs. [Anne Mie C Emons; Tijs Ketelaar;] -- "Root hairs, the tip-growing extensions of root epidermal cells, are a model system for answering many plant cell and developmental biology research questions. This book, written by experts in the.

- Buy Root Hairs: The Gills of Roots (Development, Structure, and Functions) book online at best prices in India on Read Root Hairs: The Gills of Roots (Development, Structure, and Functions) book reviews & author details and Author: V. Bhaskar. Covers the occurrence, life history, cytology, anatomy, morphology and physiology of root hairs.

The book delves into the critical role of root hairs in the development of nodules - both rhizobial Read more. Root hairs are long tubular extensions of root epidermal cells that greatly increase the root surface area and thereby assist in water and nutrient absorption.

The development of root hairs occurs in three basic stages: specification of the root hair cell fate, initiation of a root hair outgrowth, and elongation of the hair via tip by:.

Root hair cells are easy to observe and analyze because of their long tubular projections (root hairs), which are thought to aid plants in nutrient uptake, anchorage, and microbe interactions (Cutter, ). During the past several years, there has been a surge in research activity in root hair development, particularly in Arabidopsis.The materials for this book, and functions of mature tissues--Origin and development of lateral roots--Root hairs and factors affecting their development--Loss of absorbing power and secondary thickening in roots--Rate of growth and extent of root areas--Summary.

The young root system--The half-grown root system--Mature root system.He presents hypotheses on this subject from a holistic point of view. The book covers the occurrence, life history, cytology, anatomy, morphology and physiology of root hairs.

It also analyses the critical role of root hairs in the development of nodules - rhizobial and actinorrhizal in Author: Bhaskar, V.