sclerenchymatous


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scle·ren·chy·ma

 (sklə-rĕng′kə-mə)
n.
A supportive plant tissue that consists of thick-walled, usually lignified cells. Sclerenchyma cells are either fibers or sclereids.

scle′ren·chym′a·tous (sklîr′ən-kĭm′ə-təs, -kī′mə-) adj.
References in periodicals archive ?
On the other hand, characters such as the hypoderm and sclerenchymatous fibers in the mesophyll of the foliage (leaves) (METCALFE; CHALK, 1957) were registered for seedling leaves of Serjania communis.
In large VBs, thick sclerenchymatous strands are present on the upper and lower surface, while sclerenchymatous girders are absent.
Seed coat shows 2-3 layers of thin-walled cells which are externally covered by a thin cuticle and which are internally followed by thick-walled polygonal sclerenchymatous cells.
isodiametric sclereids or "stone cells") commonly found in fruits and seeds, and the same patterning of sclerenchymatous tissue (compare Figure 2h with Figure 2i-k).
The seed coat, however, is unlike any in Ammannia in having sclerenchymatous inner layers thickened on one side of the seed and mesotestal spongy extensions at each end of the seed.
When present, they only occur in such aerial organs as the leaves and scapes of the amphibious species in the form of bundles of sclerenchymatous extravascular fibers (Figure 7) or of vascular pericyclic fibers involving completely the vascular bundles, as in Oxycaryum cubense (Figure 4); they can also form bands of sclerenchymatous pericyclic fibers limiting the vascular cylinder as in the scapes of the emergent species Habenaria repens and Eichhornia paniculata (Figures 8-9).
Plant cell walls strengthened by deposition of macromolecules such as cellulose, lignin, suberin, and cellose together with sclerenchymatous fibers make a plant resistant to mechanical injury as well as to the tearing action of mandibles or the penetration of piercing-sucking mouthparts (Schoonhoven et al.
Concerning the Euphorbiaceae pericarp that is scarcely investigated (TOLEDO, 1963b; BERG, 1975; OLIVEIRA, 2007), the formation of sclerenchymatous tissue may be considered as one of the most important events in the ontogeny of dehiscent dry fruits.
This implies that the composite of the non-fibrous tissues namely, vessels, axial parenchyma and ray in these species substantially outweigh the sclerenchymatous fibres, which are more preferable in any pulp producing species.
The preserved ridges and striations in specimens 002-339, 004-263, and 985-202 represent impressed cortical sclerenchymatous fibres or bundles in support of medullosalean axes or stems (see Zodrow 2002).
He suggests that photosynthetic capacity (and rubisco levels) per unit leaf mass and the proportion of leaf mass in mesophyll cells versus epidermal, vascular and sclerenchymatous cells may be positively associated with relative growth rates.
Jinyuan###Four or five layers of irregular globular unidiomatic lignified sclerenchymatous cells###Fig.