Internode

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internode

[′in·tər‚nōd]
(biology)
The interval between two nodes, as on a stem or along a nerve fiber.

Internode

 

the area of a stem or shoot between two neighboring nodes—the sites of leaf attachment. When there is close placement of leaves, as in the basal rosettes of dandelions, daisies, and plantains, the internodes are greatly abbreviated and almost unnoticeable. In young shoots the internodes are short and the nodes are close together; as the stem or shoot grows, the internodes become longer. The growth of the internodes is effected by the activity of the meristem, which is located either at the base of the internode (in the Gramineae and Caryophyllaceae) or in its upper part (Ranunculus and Plantago).

References in periodicals archive ?
Different explant sources were used in this experiment: 1) Elongated epicotyl region of in vitro germinated plantlets (Epi E); 2) Short epicotyl of in vitro germinated plants (Epi S), short, due to germination in 16-h photoperiod; 3) Internodal segments of in vitro germinated plantlets, excluding the epicotyl region (IS in vitro); and 4) Internodal segments of juvenile plants cultivated in the greenhouse (IS gh).
The highest percentage of responsive explant averages were obtained for the elongated epicotyl region of in vitro germinated plantlets (Epi E), internodal segments of in vitro germinated plantlets excluding the epicotyl region (IS in vitro), and short epicotyl of in vitro germinated plants (Epi S).
PErez-Molphe-Balch & Ochoa-Alejo (1997) cultivated Mexican lime (Citrus aurantifolia) and Monica tangerine (Citrus reticulata) internodal segments on MS medium supplemented with 7.
It is important to point out that internodal segments did also produce adequate adventitious bud in our study.