(n.) A tissue of vegetable cells which are thickend at the angles and (usually) elongated.
Example Sentences:
(1) Many characters of leaf (hair, hypodermal cells, palisade layers, intercellular space, distinction between spongy and palisade parenchyma, "palisade ratio", distribution of collenchyma and sclerenchyma, presence or absence of starch grains, calcium oxalate crystals, number, shape and arrangement of bundles of petiole) are useful distinguishing characters.
(2) The collenchyma was degraded in the rumen although with acid phloroglucinol it stained positive for the presence of phenolic compounds.
(3) Those techniques were applied to the study in situ of the walls of actively elongating parenchyma of mung bean (Phaseolus aureus), and pea (Pisum sativum) root and of collenchyma of celery (Apium graveolens) petioles.
(4) The architecture of the expanding wall of mung bean hypocotyl (Phaseolus aureus) and collenchyma of celery (Apium graveolens) was examined using freeze-etching without any cryoprotectant, and surface-replication of frozen-ground and air-dried specimens.
Parenchyma
Definition:
(n.) The soft celluar substance of the tissues of plants and animals, like the pulp of leaves, to soft tissue of glands, and the like.
Example Sentences:
(1) While stereology is the principal technique, particularly in its application to the parenchyma, other compartments such as the airways and vasculature demand modifications or different methods altogether.
(2) Vascular surgical procedures sparing renal parenchyma are relatively new, as the most common treatment for this condition had been nephrectomy.
(3) Surrounding parenchyma may be partially compressed.
(4) Injection of T-dependent antigens into the subarachnoid space and brain parenchyma induced a marked antibody production in the spleen, as detected by plaque-forming cells (PFC).
(5) In chronic active hepatitis and liver cirrhosis, both carbohydrate antigen 19-9 positive biliary ductular cells and factor VIII-related antigen positive endothelial cells were not only observed in the enlarged portal area but also extended into the parenchyma.
(6) A pathogenetic mechanism is postulated to explain the subacute evolution of fluid collection with diffusion of proteolytic enzymes between the splenic capsule and parenchyma.
(7) The decortication is aimed at removing the chronic pleural sack and the possible parenchymatous lesions and at the recovery of the maximum functional pulmonary parenchyma.
(8) Our experience in 6 cases show the helpful use of intraoperative ultrasonography in the judgement of normal parenchyma.
(9) A wide window setting permits both pleura and lung parenchyma to be examined simultaneously.
(10) After birth, laminin mRNA was associated with intrahepatic bile channels; no laminin mRNA was detected in the parenchyma and protein deposition was restricted to blood sinus BM.
(11) Histopathological evaluations showed that sulfuric acid particles alone did not cause inflammatory responses in centriacinar units of rat lung parenchyma (expressed in terms of percent lesion area) but did cause significant damage (cell killing followed by a wave of cell replication) in nasal respiratory epithelium, as measured by uptake of tritiated thymidine in the DNA of replicating cells.
(12) Of the 20 expanding tumors, only six had direct spread in the liver parenchyma adjacent to the tumor (p less than 0.02).
(13) Relatively weaker GUS activity was also detected in pith parenchyma.
(14) Light and electron microscopic analysis showed a high concentration of this enzyme in stellate cells, particularly heavily distributed under the organ capsule and scattered in the parenchyma, where they form a widespread three-dimensional network.
(15) We observed that the distribution of three isoforms of smooth muscle myosin heavy chains is different in airways compared to pulmonary arteries, and in central airways and arteries compared to lung parenchyma.
(16) The electron-microscopic study has shown that ultrastructure of tumours and their growth rate depend on a degree of the parenchyma cell differentiation and on the maturity of connective tissue being the result of their specific interaction.
(17) Observations up to 16 weeks revealed diffuse involvement of the lung parenchyma with extensive collagenization.
(18) As shown earlier, at zero turgor pressure the intracellular freezing point of the parenchyma cells matches closely the negative pressure in the xylem sap.
(19) Studies in severe combined immunodeficient mice that were engrafted with selected lymphocyte subpopulations show that B cells, and hence anti-Cryptococcus antibodies, are not necessary for the CD4+ T cell-dependent responses that isolate and subsequently destroy this opportunistic pathogen in the lung parenchyma.
(20) Although approximately 29% of the inoculum was recovered from the hepatic parenchyma of the sheep, F. hepatica was found in only one of six inoculated deer.