Definition of periclinal in English:
periclinal
adjective ˌpɛrɪˈklʌɪn(ə)lˌperəˈklīnl
Botany 1(of a cell wall) parallel to the surface of the meristem.
Example sentencesExamples
- Guard-cell walls parallel to the root surface are considered periclinal.
- Ornamentation of the periclinal walls could be used to discriminate four morphological types.
- Superficially it appears to be a periclinal chimera with a chlorophyll-deficient mutation in the second layer of the meristem.
- 1.1 (of cell division) taking place by the formation of periclinal walls.
Example sentencesExamples
- Moreover, in sun leaves, anticlinal and periclinal divisions occur almost synchronously.
- This process is initiated by anticlinal and periclinal divisions of a few callus cells only.
- They also report the absence of periclinal cell divisions at the base of the mutant awn.
- Most parenchyma cells continue to divide by periclinal divisions.
- In a number of species, regardless of their wall formation type, new periclinal cell divisions may occur when the tapetum differentiates.
Derivatives
adverb
Botany The hypodermis is initiated by a separate layer of initials within the apical meristem that divides periclinally at least once to produce a biseriate to multiseriate zone of cells under the epidermis.
Example sentencesExamples
- In the basic type of wall formation, all the cells in the secondary parietal layers divide once periclinally, forming four new layers.
- Because the aleurone cells continue to divide periclinally in the developing cereal endosperm the youngest cells are present in the sub-aleurone layer and the oldest cells in the central part of the endosperm.
Origin
Late 19th century: from Greek periklinēs 'sloping on all sides', from peri- 'around' + klinēs 'sloping' (from the verb klinein).