dicotyledon

(redirected from Dicots)
Also found in: Dictionary, Thesaurus, Medical.
Related to Dicots: Monocots

dicotyledon

1. any flowering plant of the class Dicotyledonae, normally having two embryonic seed leaves and leaves with netlike veins. The group includes many herbaceous plants and most families of trees and shrubs
2. primitive dicotyledon. any living relative of early angiosperms that branched off before the evolution of monocotyledons and eudicotyledons. The group comprises about 5 per cent of the world's plants
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

dicotyledon

[‚dī‚käd·əl′ēd·ən]
(botany)
Any plant of the class Magnoliopsida, all having two cotyledons.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
PCR template-DNA isolated quickly from monocot and dicot leaves without tissue homogenization.
In turn browsing ungulates (dicot feeders) such as impala (Aepyceros melampus), greater kudu (Tragelaphus strepsiceros), and giraffe (Giraffa cemlopardalis) benefit and their numbers increase (Walker 1985, Owen-Smith 1988).
Bidens 21 1.17 12.2 0.029 Tetramolopium 19 1.04 2.64 0.006 Silversword alliance 21 1.29 24.0 0.075 Schiedea and Alsinidendron 25 1.84 43.6 0.188 Dicots 329 1.79 44.8 0.136 Averaged over populations of all species, the Hawaiian Alsinoideae show higher levels of genetic variation than any other group of Hawaiian plants (Table 3), despite the occurrence of genetically depauperate species of Schiedea and Alsinidendron.
Codon usage bias has also been investigated in higher plants, and monocots have been found to retain more GC content as compared to dicots. Thus it explains variable mutational conditions and different genomic level organization (Kawabe and Miyashita, 2003).
Secondary growth is similar to verified type for most of the dicots roots, cambium with procambium, and phellogen that also origins from pericycle.
(2003), where CLCuMV C1 promoter was evaluated in dicots.After confirming strong promoter activity of C1 rep in dicotyledonous plants, further expression studies were performed using monocotyledonous plant system.
Of the remaining taxa, 45 were monocots in seven families, and 111 were dicots in 39 families.
Most dicots are unable to accumulate high levels of Si in their shoots, although some, such as cucumber can accumulate moderate levels in leaves.
Despite this and other emphatic statements that the Trends emerge only upon examination of the dicots in their totality, perhaps the most frequent use of the Trends has not been with respect to dicots "as a whole" at all, but instead in genera or families, even, the quote above notwithstanding, by Bailey himself, e.g.
hispidus includes both monocots and dicots, but this species compensated for nutrient deficits by ingesting <50% dicots during the breeding season because dicots contained higher concentrations of nutrients than monocots (Randolph et al., 1991).
There were eight species of ferns and 90 species of flowering plants, 29 of which were monocots and 61 of which were dicots. Four species were non-native, representing 4 A of the total species collected.