internodal segment


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in·ter·nod·al seg·'ment

the portion of a myelinated nerve fiber between two successive nodes.

in·ter·nod·al seg·ment

(in'tĕr-nō'dăl seg'mĕnt)
The portion of a myelinated nerve fiber between two successive nodes.
Synonym(s): internode.

Ranvier,

Louis A., French pathologist, 1835-1922.
nodes of Ranvier - short intervals in the myelin sheaths of nerve fibers.
Ranvier crosses - black or brown figures in the shape of a cross, marking Ranvier nodes in the longitudinal section of a nerve stained with silver nitrate.
Ranvier disks - tactile nerve endings of cupped disklike form in the skin. Synonym(s): Ranvier tactile disks
Ranvier membrane
Ranvier plexus - a subbasal stroma plexus of the cornea.
Ranvier segment - the portion of a myelinated nerve fiber between two successive nodes. Synonym(s): internodal segment
Ranvier tactile disks - Synonym(s): Ranvier disks
References in periodicals archive ?
The maximum induction of adventitious buds in 'Pineapple' orange (Citrus sinensis) and citron (Citrus medica) explants was obtained on MS medium with 3.0 mg [dm.sup.-3] BAP, while for lime (Citrus aurantifolia) 1.0 mg [dm.sup.-3] BAP showed better results in explants obtained from internodal segments of greenhouse cultivated plants (Duran-Vila & Navarro, 1989).
The use of 2.0 mg [dm.sup.-3] of BAP led to the best response in terms of the percentage of responsive explants from internodal segments of Rangpur lime and sour orange plants cultivated in the greenhouse.
In a genetic transformation experiment with the objective of determining the incubation efficiency of internodal segments of Citrus aurantifolia Swing., it was observed that the explants cultivated on MS medium containing 1,0 mg [dm.sup.-3] BAP, maintained in the dark for 15 days and subsequently transferred to light conditions, had the best responses (41.9% of responsive explants) (Pena et al., 1997).
Therefore, this experiment revealed that the best sour orange explants for in vitro organogenesis are internodal segments of in vitro germinated plantlets and epicotyl segments from germination in the dark, followed by light incubation conditions.
Shoots obtained from internodal segments of in vitro germinated Rangpur lime plants cultivated on 1.0 mg [dm.sup.-3] NAA showed 80% of rooting.