dicotyledon

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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 ?
Keywords: Bemisia tabaci, Population, Dicotyledonous weeds, Monocotyledonous weeds, weeding.
According to Diggle and DeMason (1983b), the transition of primary meristem into secondary meristem in the monocotyledonous species is analogous to the transition of procambium to vascular cambium in the woody dicotyledonous stem.
The 2S albumins are a group of storage proteins that occur widely in seeds of dicotyledonous plants such as soybeans," Galvez said.
Two dicotyledonous species, garden cress (Lepidium sativum L.) and lettuce (Lactuca sativa L.), and two monocotyledonous, Italian ryegrass (Lolium multiflorum L.) and barnyard grass (Echinochloa crus-galli L.
Nigella sativa is a dicotyledonous medicinal plant, belonging to the family Ranunculaceae, which is native to southern Europe, North Africa, and Asia Minor, and is widely cultivated in Pakistan and India.
They are phytophagous sap-sucking insects, majority are narrowly host-specific and predominantly associated with perennial dicotyledonous angiosperms (Hodkinson, 2009).
Begomovirus is the only genus that is transmitted by the whitefly Bemisia tabaci, infects only dicotyledonous plants and are mostly bipartite.
A major exception to this high host conservatism is the large Old World genus Diaphorina Low, 1880, which recruits hosts from at least 19 families in 10 plant orders of dicotyledonous angiosperms (Hollis 1987; Burckhardt & van Harten 2006).
It is a herbaceous, biennial, dicotyledonous flowering plant distinguished by a short stem upon which is crowded a mass of leaves, usually green but in some varieties red or purplish, which while immature form a characteristic compact, globular cluster (cabbage head).
Royalpalm and madagascar palm are monocotyledons plants with parallel pulse, the others are dicotyledonous plants with network veins.
For example, according to Hahlbrock and Scheel (1989), among the available plant promoters which is the CaMV (Cauliflower mosaic virus) 35S promoter has been most commonly used in both dicotyledonous and monocotyledonous plants for a number of reasons, especially its ability to give high level of gene expression and for its constitutive nature in gene expression.