periclinal


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periclinal

(of planes of cell division in plants) parallel to the surface of the plant.
References in periodicals archive ?
The intumescence of a stem gall is due to the hyperplasia in the cortical cells, where periclinal divisions occur during growth and development phase (Goodey, 1948; Ferreira & Isaias, 2013).
In addition to cuticle thickness, the parameter that significantly differed between the populations was SI of both the leaf sides; the height of the midrib, which was positively correlated with the thickness of the outer periclinal external walls of the adaxial surface of the leaf (r = 0.8357, p = 0.38); the number of ducts in the ground parenchyma of the midrib, which was positively correlated with the midrib width (r = 0.6482, p = 0.164) and the leaf area (r = 0.5573, p = 0.251); and the thickness of the mesophyll.
AL: starch; B: bract; BE: spiral border; CA: calcified layer; CC: coronula cells; CL: chloroplasts; CT: oospora central cell; CE: spiral cells; CES: sterile oosporangium cell; CMO: oospora mother cell; CN: nodal cell; CP: pedicel cell; NUC: nucleus; OSF: oospora; PA: anticlinal wall; POC: compound oosporangial wall; PP: periclinal wall; PPC: spiral cells primary wall; PPO: oospora primary wall; V: vacuoles.
A cross-sectional cut showed the uneven and progressive thickening of the periclinal and anticlinal cell wall divisions towards the inner portion.
SEM showed reticulate surface pattern with regular to irregular polygonal, epidermal cell shape varies from isodiametric, raised, straight; smooth anticlinal cell walls and flat to concave: macro-reticulate periclinal cell walls "Figure 3A and B".
The cuticle is usually thick and the epidermal cells have thin outer periclinal walls.
The archesporial cell in the nucellus formed a primary parietal cell by periclinal cell divisions (Fig.
The greatest of these outcrops is located close to the southern periclinal closure of this large anticline, near to the CVF (Figs.
Furthermore periclinal divisions of sporogenous cells resulted in the formation of pollen mother cells in S.striata.
3) with slightly observable periclinal stratification as a remnant of superficial facies of a scoria cone produced by a Strombolian eruption (e.g., Head and Wilson, 1989; Rapprich et al., 2007; Tietz et al., 2011; Buchner and Tietz, 2012).
A nervura central proxima a face abaxial apresenta celulas epidermicas, em formato ligeiramente alongado no sentido periclinal, passando a seccoes de menor lumen e paredes mais espessadas (Figura 4B).
The cell sculptures or curvature of the outer epidermis wall (periclinal wall) has a great influence on the surface roughness in the micrometer scale.