Noun:

சுரப்புக்கருப்பொருள்,

parenchyma's Usage Examples:

The moss-like covering of the "bedeguars" of the wild rose, the galls of a Cynipid, Rhodites rosae, represents leaves which have been developed with scarcely any parenchyma between their fibro-vascular bundles; and the " artichoke-galls " or " oak-strobile," produced by Aphilothrix L.

The excretory tubes, the nervous system, and the parenchyma and integument are continuous from one end of the worm to the other.

In these we have (1) the evaporation from the damp delicate cell-walls into the intercellular spaces; (2) the imbibition by the cell-wall of water from the vacuole; (3) osmotic action, consequent upon the subsequent increased concentration of the cell sap, drawing water from the wood cells or vessels which abut upon the leaf parenchyma.

In Fucaceae, Dictyotacea, and in Laminariaceae and Sphacelariaceae, among Phaeosporeae, the thallus consists of a true parenchyma; elsewhere it consists of free filaments, or filaments so compacted together, as in Cutleriaceae and Desmarestiaceae, as to form a false parenchyma.

In others a central parenchyma or primetive pith a new region of the primitive stelar conjunctiveappears in the centre of the xylem.

In some leaves, as in the barberry, the veins are hardened, producing spines without any parenchyma.

When the development of parenchyma is such that it more than fills up the spaces between the veins, the margins become wavy, crisp or undulated, as in Rumex crispus and Rheum undulatum.

The fibres belong to the same n,orpholcgical category as the parenchyma, various transitions being found between them; thus there may be thin-walled cells of the shape of fibres, or ordinary fibres may be divided into a number of superposed cells.

Drimys (Magnoliaceae) closely resemble conifers in the homogeneous character of the wood, but in most cases the presence of large spring vessels, wood-fibres and abundant parenchyma affords an obvious distinguishing feature.

They may arise in the pericycle or endocycle of the stele, in the cortex of the stem, or in the parenchyma of the secondary xylem or phloem.

It always consists of true parenchyma, and is entirely formed by the cutting off of segments from an apical cell.

Synonyms:

animal tissue,

Antonyms:

medulla, cortex,