(n.) The substance which, added to the material of a cell wall, makes it waterproof, as in cork.
Example Sentences:
(1) Using tritiated apple cutin as substrate, the two cutinases showed similar substrate concentration dependence, protein concentration dependence, time course profiles, and pH dependence profiles with optimum near 10.0.
(2) Using unlabeled cutin, the rate of dihydroxyhexadecanoic acid release from apple fruit cutin by cutinase I was determined to be 4.4 mumol per min per mg.
(3) 7) capable of degrading cutin, the insoluble lipid-polyester matrix covering the surface of plants, and hydrolysing triglycerides.
(4) Both mRNA and protein were inducible by cutin hydrolysate, while hypovirulence agents suppressed the level of mRNA and the enzyme.
(5) Transformants with a disrupted CUT1 gene failed to produce a cutin-inducible esterase that is normally detected by activity staining on non-denaturing polyacrylamide gels.
(6) The seed coat of almond (Prunus amygdalus Batsch) contains up to 30% procyanidins with different degrees of polymerisation and, in addition, fatty oils, lignin, polysaccharides and cutin.
(7) omega-Hydroxy fatty acids were more effective in inducing cutinase than any of the other more polar acids of cutin.
(8) A radial immunodiffusion assay for cutinase was developed, and the induction of cutinase by cutin hydrolysate was confirmed by this direct assay.
(9) Thus, the high resistance of plant cuticles to transport of 2,4-D can be attributed to both low diffusion and partition coefficients in the transport-limiting layer made up of cutin and soluble lipids which are densely packed and highly ordered.
(10) Induction of cutinase by cutin or hydrolyzed cutin after growth on glucose medium was similarly reduced.
(11) The mutant possessed an 80 to 90% reduction in cutinase activity when grown for 3 to 5 days on acetate- or cutin-containing medium.
(12) Thin-layer chromatographic analysis of the products released from labeled apple fruit cutin showed that the extracellular enzyme released all classes of cutin monomers.
(13) However, unlike the previously studied fungal systems, cutin hydrolysate did not induce cutinase.
(14) From a physiological point of view, peroxygenase and this newly described epoxide hydrolase could be responsible, in vivo, for the biosynthesis of a class of oxygenated fatty acid compounds known to be involved in cutin monomers production and in plant defense mechanisms.
(15) Hygromycin-resistant transformants of F. solani pisi generated by electroporation were assayed for CAT activity inducible by cutin hydrolysate and for glucose repression of this induction.
(16) These results suggest that cutin monomer causes phosphorylation of a transcription factor that binds to the -225 to -360 segment of the cutinase gene and enhances transcription of this gene.
(17) Non-denaturing polyacrylamide gels stained for esterase activity show a single major band among intracellular and extracellular proteins from cutin-grown cultures that is not present among intracellular and extracellular proteins prepared from glucose-grown or carbon-starved cultures.
(18) The gene is expressed when cutin is the sole carbon source but not when the carbon source is cutin and glucose together or glucose alone.
(19) This demonstrates that permeance is determined by the soluble cuticular lipids associated with the cutin, rather than by cutin alone.
(20) The properties of the homogeneous cutinase I, cutinase II, and the nonspecific esterase isolated from the extracellular fluid of cutin-grown Fusarium solani F. pisi (R.E.
Polymer
Definition:
(n.) Any one of two or more substances related to each other by polymerism; specifically, a substance produced from another substance by chemical polymerization.
Example Sentences:
(1) Five days later, the animals were randomly assigned to one of four treatment groups: Group 1 received intracranial implantation of controlled-release polymers containing dexamethasone; Group 2 received intraperitoneal implantation of controlled-release polymers containing dexamethasone; Group 3 received serial intraperitoneal injections of dexamethasone; and Group 4 received sham treatment.
(2) In spite of important differences in size, chemical composition, polymer density, and configuration, biological macromolecules indeed manifest some of the essential physical-chemical properties of gels.
(3) The acetonitrile extract is concentrated and analyzed by HPLC, using a new polymer-based column, and detected by UV spectroscopy at 270 nm.
(4) These results suggest that glomerular IgA are IgA polymers and decreased hepatic clearance of hepatic IgA polymers may be responsible for the glomerular deposition of IgA.
(5) A method for the introduction of side chains containing isonitrile (isocyanide, functional group) on the backbone of polysaccharides and other hydroxylic polymers was developed.
(6) He knows polymer notes from travels in Australia, where they were first introduced in 1988, and he wants Britain to "move with the times" too.
(7) Poly(ortho ester) bioerodible polymers are suitable materials for the topical administration of a wide variety of therapeutic agents; varying the nature and amounts of excipients physically incorporated into the polymer will vary the erosion rates from a few hours to many months.
(8) By performing countercurrent distribution in the presence of a polymer-ligand, the protein that binds the polymer-ligand can be separated from a heterogenous mixture.
(9) Pulse labeling of the polymer with [2-3H]adenosine was also maximal at the same time points.
(10) Charged polymers, known to alter cell surface characteristics, reversibly inhibit the intercellular communication required in kidney tubule induction.
(11) A novel type of ion exchanger was prepared by multipoint covalent binding of polystyrene chains onto the surface of porous silica followed by polymer-analogous modification of the bonded layer.
(12) Another 52 received a 100-g (nonfasting) glucose polymer screening test followed by a 100-g glucose polymer tolerance test.
(13) The important role of the exocellular polymers for the structure, size and density of flocs can be well illustrated.
(14) A small number of children with protracted diarrhoea, who have severe mucosal injury may not be able to handle even starch and may require diets based on short chain glucose polymers.
(15) Rather, assembly of sIgM into polymers and their subsequent secretion are prevented in B lymphocytes by preceding targeting of monomeric sIgM to degradation.
(16) The neutral polymer was devoid of type 6 activity although it was serologically active.
(17) The tissue reaction was more severe for polymers having a higher rate of degradation.
(18) Control experiments with other constructs (e.g., allopurinol riboside linked to the mannose-free polymer) confirmed that the enhancement of activity was indeed achieved by means of the mannose homing device.
(19) Of the tested polymers, only polyvinyl methylacetamide and dextran inhibit a decrease in the level of mitochondrial enzyme activity which develops with administration of endotoxin.
(20) At different degrees of DNA damage, the average length of the poly-ADP-ribose chain did not practically alter, thus suggesting the increase in the number of polymer binding sites in the histones.