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Science, 2008
DEVELOPMENT Adult hair follicles sustain repeated cycles of hair loss and regrowth. Stem cells reside within a small niche, called the bulge, located in the upper part of the hair follicle. These stem cells are responsible for driving this cycle of growth and can repopulate follicles and surrounding epidermis damaged by wounding.
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DEVELOPMENT Adult hair follicles sustain repeated cycles of hair loss and regrowth. Stem cells reside within a small niche, called the bulge, located in the upper part of the hair follicle. These stem cells are responsible for driving this cycle of growth and can repopulate follicles and surrounding epidermis damaged by wounding.
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Annual Review of Plant Physiology, 1953
The following review deals with the growth of roots in a fairly broad sense. It has been possible in a few instances only to separate from each other experimentally the different kinds of growth, i.e., cell multiplication and cell elongation. Usually growth as measured by length, weight or, less frequently, by volume of roots denotes the sum of an ...
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The following review deals with the growth of roots in a fairly broad sense. It has been possible in a few instances only to separate from each other experimentally the different kinds of growth, i.e., cell multiplication and cell elongation. Usually growth as measured by length, weight or, less frequently, by volume of roots denotes the sum of an ...
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Plant and Soil, 1987
A model is developed for the rate of elongation of a root tip in terms of the balance of pressures acting on the root. Differentials of this equation give expressions for the changes in root elongation rate with respect to soil water potential and soil mechanical resistance.
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A model is developed for the rate of elongation of a root tip in terms of the balance of pressures acting on the root. Differentials of this equation give expressions for the changes in root elongation rate with respect to soil water potential and soil mechanical resistance.
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1977
Our interest in this subject arose from the discovery (43) of the selective herbicides, 3,5-diiodo-4-hydroxybenzonitrile (ioxynil) and the dibromo derivative (bromoxynil), both of which are widely used in agriculture. This discovery stimulated research on their mode of action and metabolism, and investigations on chemical structure in relation to ...
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Our interest in this subject arose from the discovery (43) of the selective herbicides, 3,5-diiodo-4-hydroxybenzonitrile (ioxynil) and the dibromo derivative (bromoxynil), both of which are widely used in agriculture. This discovery stimulated research on their mode of action and metabolism, and investigations on chemical structure in relation to ...
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1988
As part of the ACIFORN project on the impact of air pollution on the ecophysiology of Douglas-fir root growth is monitored to assess: total root growth; periodicity of root growth; turnover of fine roots; amount of biomass and necromass of roots; root intensity in different soil horizons; effects of air pollution on root ...
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As part of the ACIFORN project on the impact of air pollution on the ecophysiology of Douglas-fir root growth is monitored to assess: total root growth; periodicity of root growth; turnover of fine roots; amount of biomass and necromass of roots; root intensity in different soil horizons; effects of air pollution on root ...
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1991
Much detailed basic research on root growth and development was undertaken during the early portion of this century. Recent research has explored some of the underlying anatomical, physiological and genetic mechanisms driving root growth. There have been three major constraints to plant rhizosphere research: 1) inconsistent use of an inexact ...
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Much detailed basic research on root growth and development was undertaken during the early portion of this century. Recent research has explored some of the underlying anatomical, physiological and genetic mechanisms driving root growth. There have been three major constraints to plant rhizosphere research: 1) inconsistent use of an inexact ...
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Science, 2011
Plant Science![Figure][1] CREDIT: NASA/ IMAGE COURTESY OF ESA In the growing Arabidopsis root tip, the hormone auxin regulates cell division and differentiation from the stem cell niche. Auxin is expressed as a gradient, which peaks at the root meristem, where stem cells drive root growth.
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Plant Science![Figure][1] CREDIT: NASA/ IMAGE COURTESY OF ESA In the growing Arabidopsis root tip, the hormone auxin regulates cell division and differentiation from the stem cell niche. Auxin is expressed as a gradient, which peaks at the root meristem, where stem cells drive root growth.
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