root cell
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Root-knot nematode — Larva of root knot nematode, Meloidogyne incognita, magnified 500×, shown here penetrating a tomato root Scientific classification Kingdom … Wikipedia
Root pressure — Root pressure: osmotic pressure within the cells of a root system that causes sap to rise through a plant stem to the leaves.Root pressure occurs in the xylem of some vascular plants when the soil moisture level is high either at night or when… … Wikipedia
Root hairs — Root hair cells, the rhizoids of many vascular plants, are tubular outgrowths of trichoblasts, the hair forming cells on the epidermis of a plant root. That is, root hair cells are lateral extensions of a single cell and only rarely branched.… … Wikipedia
root hair cell — Root epidermal cell, part of which projects from the root surface as a thin tube, thus increasing the root surface area and promoting absorption of water and ions … Dictionary of molecular biology
cell — early 12c., small room, from L. cella small room, store room, hut, related to L. celare to hide, conceal, from PIE root *kel conceal (Cf. Skt. cala hut, house, hall; Gk. kalia hut, nest, kalyptein to cover, koleon sheath … Etymology dictionary
root hair — root′ hair n. bot an elongated tubular extension of an epidermal cell of a root, serving to absorb water and minerals from the soil • Etymology: 1855–60 … From formal English to slang
Root nodule — Cross section though a soybean (Glycine max Essex ) root nodule. The bacterium, Bradyrhizobium japonicum, colonizes the roots and establishes a nitrogen fixing symbiosis. This high magnification image shows part of a cell with single bacteroids… … Wikipedia
root — root1 rootlike, adj. /rooht, root/, n. 1. a part of the body of a plant that develops, typically, from the radicle and grows downward into the soil, anchoring the plant and absorbing nutriment and moisture. 2. a similar organ developed from some… … Universalium
Root — /rooht/, n. 1. Elihu /el euh hyooh /, 1845 1937, U.S. lawyer and statesman: Nobel peace prize 1912. 2. John Wellborn /wel beuhrn/, 1851 91, U.S. architect. * * * In botany, the underground anchoring part of a plant. It grows downward in response… … Universalium
root — 1. The primary or beginning portion of any part, as of a nerve at its origin from the brainstem or spinal cord. SYN: radix (1) [TA]. 2. SYN: r. of tooth. 3. The descending underground … Medical dictionary
root hair — noun thin hairlike outgrowth of an epidermal cell just behind the tip; absorbs nutrients from the soil • Hypernyms: ↑plant organ • Part Holonyms: ↑root * * * noun : one of the many hairlike tubular outgrowths of epidermal or sometimes cortical… … Useful english dictionary
