adventitious

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Related to Adventitious shoot: adventitious root

adventitious

 [ad″ven-tish´us]
not normal to a part.

ad·ven·ti·tious

(ad-ven-tish'ŭs),
1. Arising from an external source or occurring in an unusual place or manner.
See also: extrinsic.
2. Occurring accidentally or spontaneously, as opposed to naturally or through heredity.
3. Synonym(s): adventitial

adventitious

(ăd′vĕn-tĭsh′əs, -vən-)
adj.
1. Arising from an external cause or factor; not inherent: "These rodents ... appear suddenly in the Oligocene, as if by adventitious entrance independent of the rest of the fauna" (George Gaylord Simpson).
2. Biology Of or belonging to a structure that develops in an unusual place: adventitious roots.

ad′ven·ti′tious·ly adv.
ad′ven·ti′tious·ness n.

ad·ven·ti·tious

(ad'vĕn-tish'ŭs)
1. Arising from an external source or occurring in an unusual place or manner.
See also: extrinsic
2. Occurring accidentally or spontaneously, as opposed to natural causes or hereditary.
3. Synonym(s): adventitial.

adventitious

1. Accidentally acquired or added by chance.
2. Occurring in an unusual place or in an irregular manner.

adventitious

  1. (of a root) growing laterally from a stem rather than the main root, e.g. prop roots of maize, clinging roots of climbing vines, and roots of BULBS, such as the daffodil.
  2. (of a bud) not developing in a leaf axil, as in Begonia where such buds can be produced from leaf wounds.

ad·ven·ti·tious

(ad'vĕn-tish'ŭs)
1. Arising from an external source or occurring in an unusual place or manner.
2. Occurring accidentally or spontaneously, as opposed to naturally or through heredity.
3. Synonym(s): adventitial.
References in periodicals archive ?
In the present study the combination of 0.5 mg [L.sup.-1] of TDZ and 0.25 mg [L.sup.-1] of IBA resulted in both axillary shoot emersion and adventitious shoot regeneration.
plants through the induction of adventitious shoots in explants derived from selected mature trees, by studying the effect of different plant growth regulators
The effect of different plant growth regulators on adventitious shoot formation from Virginia pine (Pinus virginiana) zygotic embryo explants.
All the treatments could facilitate adventitious shoot differentiation from nodal segments.
Jeong, "Silicon promotes adventitious shoot regeneration and enhances salinity tolerance of Ajuga multiflora Bunge by altering activity of antioxidant enzyme," The Scientific World Journal, vol.
The plantlets produced by somatic embryos in the presence of 1 mg/l K produced multiple adventitious shoot buds.
When internodal segments were used as explant, the development of adventitious shoots was detected in 62% of the explants culture in culture media supplemented with 2.5 mg [L.sup.-1] of BAP.
Ten to fifteen adventitious shoot buds emerged from every responding explant through direct organogenesis.
Considering these information, the objective of this work was to describe the effect of silver nitrate and cobalt chloride on the frequency of adventitious shoot regeneration and number of shoots per explant of in vitro culture of Cotyledonary node of medium staple cotton cultivar Barac B-67.
A protocol for Toona ciliata rachis explant propagation of regenerated plantlets obtained via adventitious shoot formation from callus cultures should thus include incubation in TDZ-supplemented MS medium (0.25 mg/L) in com plete darkness for promoting shoot initiation and the reafter shoots should be further regenerated in MS medium containing 1 mg/L IBA.