Root Hair
Root Hair - Related Videos
09:23
Imaging the Root Hair Morphology of Arabidopsis Seedlings in a Two-layer Microfluidic Platform
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Cited by 11 •
2017
This article demonstrates how to culture Arabidopsis thaliana seedlings in a two-layer microfluidic platform that confines the main root and root hairs to a single optical plane. This platform can be used for real-time optical imaging of fine root morphology as well as for high-resolution imaging by other means.
01:22
Hair Cells
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2019
Hair cells are the sensory receptors of the auditory system—they transduce mechanical sound waves into electrical energy that the nervous system can understand. Hair cells are located in the organ of Corti within the cochlea of the inner ear, between the basilar and tectorial membranes. The actual sensory receptors are called inner hair cells. The outer hair cells serve other functions, such as sound amplification in the cochlea, and are not discussed in detail here. Hair cells are named after...
07:40
A Noninvasive Hair Sampling Technique to Obtain High Quality DNA from Elusive Small Mammals
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Cited by 28 •
2011
We present a noninvasive sampling approach to efficiently collect hair samples from elusive small mammals, as shown for the American pika. We demonstrate the utility of this method by extracting DNA from sampled hair and amplifying several types of molecular markers commonly used in studies of wildlife ecology and conservation.
08:54
Validated LC-MS/MS Panel for Quantifying 11 Drug-Resistant TB Medications in Small Hair Samples
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Cited by 5 •
2020
Current methods of analyzing patients’ adherence to complex drug resistant-tuberculosis (DR-TB) regimens can be inaccurate and resource-intensive. Our method analyzes hair, an easily collected and stored matrix, for concentrations of 11 DR-TB medications. Using LC-MS/MS, we can determine sub-nanogram drug levels that can be utilized to better understand drug adherence.
01:16
Accessory Structures of the Skin: Hair and Hair Follicles
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2025
Hair and hair follicles are integral components of the integumentary system. Hair is a filamentous structure composed mainly of a protein called keratin. It is found on the surface of the skin throughout the body, except for areas such as the palms of the hands and soles of the feet. Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells. Hair strands originate at the epidermal penetration called the hair follicle. The hair shaft is the part...
FAQs
Water enters through the root hair surface by osmosis, the movement of water across a selectively permeable barrier. Mineral acquisition depends on membrane transport proteins that regulate the movement of nutrients into the root. Because root hairs extend through soil pores and provide a large contact area, they connect the plant’s internal transport system with resources distributed around soil particles.
Root hairs develop near the root tip, where they can extend into surrounding soil pores during early root growth. Their position allows newly formed extensions to contact soil close to the actively advancing root region. Studying this developmental zone helps biologists relate epidermal cell specialization to the plant’s ability to explore nearby soil and acquire resources.
Root hairs operate at an interface where plant tissues meet soil particles, microorganisms, and changing nutrient concentrations. These relationships place the extensions within the immediate environment that supplies water and minerals. Examining the interface helps explain how root hairs participate in soil adaptation and how plants respond to uneven resource distribution around the root.
Root hairs are relevant to drought research because water availability depends on conditions within surrounding soil pores. Their thin walls and extensive contact with soil support the study of how plants obtain water when resources are limited. Connecting root hair structure with drought responses can clarify plant adaptation and inform strategies for improving growth under challenging soil conditions.
Research on root hair structure and development can guide agricultural efforts aimed at improving crop growth and resource efficiency. Because these extensions participate in water uptake and mineral acquisition, they provide a way to investigate plant nutrition, soil adaptation, and drought responses together. This broader perspective can support strategies that help crops use available soil resources more effectively.
Root hair studies provide information about how specialized root epidermal cells develop and function at the plant–soil boundary. Researchers can connect cellular structure with water uptake, mineral acquisition, and interactions with the surrounding environment. These findings contribute to biological explanations of plant nutrition, responses to drought, adaptation to soil conditions, and the relationship between roots and microorganisms.