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An appendage derived from the protoderm in plants, including hairs and scales.
(invertebrate zoology)
A brightly colored tuft of hairs on the body of a myrmecophile that releases an aromatic substance attractive to ants.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



in plants, an outgrowth of epidermal cells that varies in shape, structure, and function. (Deeper-lying tissues participate in the formation of emergences.) The most common trichomes are hairs and glumes. The long, soft hairs that cover cotton seeds are a valuable raw material for the textile industry. The structures of trichomes and their location on plant organs have taxonomic significance (for example, in the family Cruciferae).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Sorenson said the results could lead to further improvement or manipulation of glandular trichomes.
The number of GTs per unit area was estimated at 20x magnification by counting the trichomes in randomly selected samples of stems (N = 15) from five juvenile plants (Gravano, Tani, Bennici, & Gucci, 1998).
Furthermore, observations during evaluations indicated that the presence of trichomes and domatias would result in an important place for these mites to refuge.
The number of adaxial (63) and abaxial (78.75) trichomes, together with the acylsugar content (35.29 nmols [cm.sup.-2] leaf area) was higher in S.
The anatomical study's with Scabiosa rotata M.Bieb, it is stated that the eglandular trichomes are present in the stem and leaf, and also a small amount of glandular trichomes are present in the leaf.
Owing to the presence of trichomes and sensilla chaetica, we were not always able to view the complete surface of the TAPs, thus our meristic data may slightly under represent the actual number of pores present (Table 1).
The majority of species within Plectranthus genus is succulent leaves and stems and is aromatic due to glandular trichomes present on its leaves.
Key results: All species contain multicellular uniseriate trichomes which may be glandular or non-glandular.
It is known that this species has trichomes that secrete toxic bimolecular that act on herbivorous insects [53, 64, 36, 14, 62, 37, 23].