What's the difference between homogeneous and idioblast?
Homogeneous
Definition:
(a.) Of the same kind of nature; consisting of similar parts, or of elements of the like nature; -- opposed to heterogeneous; as, homogeneous particles, elements, or principles; homogeneous bodies.
(a.) Possessing the same number of factors of a given kind; as, a homogeneous polynomial.
Example Sentences:
(1) The extents of phospholipid hydrolysis were relatively low in brain homogenates, synaptic plasma membranes and heart ventricular muscle.
(2) The constitution of chromosomes in the two plasmacytomas remained remarkably stable in their homogeneous modal population.
(3) Gel filtration of the 40,000 rpm supernatant fraction of a homogenate of rat cerebral cortex on a Sepharose 6B column yielded two fractions: fraction II with the "Ca(2+) plus Mg(2+)-dependent" phosphodiesterase activity and fraction III containing its modulator.
(4) ASF-II was purified to apparent homogeneity by using concanavalin A-agarose affinity chromatography, DEAE-cellulose chromatography, alumina gel adsorption, and isoelectric focussing techniques.
(5) Concentrations of alpha-lactalbumin and alpha s1-casein were measured in media and explant homogenates by radioimmunoassay, as an index of lactogenesis.
(6) Further subfractionation disclosed that the acetyltransferase activity was most enriched in the Golgi fraction, in which its specific activity was some ninefold greater than in the total homogenate.
(7) Gamma-irradiated splenic homogenates of armadillos infected with M. leprae proved sterile by conventional tests and media.
(8) A technique, using Nuclepore polycarbonate membrane filters as a containing medium for very small volumes of ionic standard solutions, to produce homogeneous ice standards is described.
(9) In vitro studies showed that BOF-A2 was rapidly degraded to EM-FU and CNDP in homogenates of the liver and small intestine of mice and rats, and in sera of mice, rats and human, and the conversion of EM-FU to 5-FU occurred only in the microsomal fraction of rat liver in the presence of NADPH.
(10) Plasma membranes were obtained from a homogeneous population of rabbit red blood cells at different maturation periods.
(11) The effect of diethylstilbestrol (DES) on the percent conversion of a 14C-progesterone (14C-P) substrate to 14C-testosterone (14C-T) when added to incubates fo rat testicular homogenates has been measured.
(12) While the reduced form of the "derived" polyphenolic compounds, generated during tissue homogenization, appeared to enhance dye binding with bovine serum albumin, their influence on the protein assay directly in crude homogenates was extremely diverse.
(13) Enzyme prepared in this manner was homogeneous according to electrophoresis on sodium dodecyl sulfate-polyacrylamide gels and immunoelectrophoresis using antiserum directed against it.
(14) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
(15) The inhibitory effect was not due to contaminating rT3 in the liver homogenates.
(16) The final preparation was homogeneous and a single polypeptide of 18,000 daltons as judged by SDS-polyacrylamide gel electrophoresis.
(17) This enzyme was purified to homogeneity and exhibited an apparent molecular weight of 36,000 on sodium dodecyl sulfate gels and 180,000 on a TSK G-3000SW column in the presence of Triton X-100.
(18) Computed tomography (CT) is the most sensitive radiologic study for detecting these tumors, which usually are small, round, sharply marginated, and of homogeneous soft tissue density.
(19) Thus, whereas CD3-associated molecules isolated from polyclonal CD3+WT31+ populations (expanded in IL 2 under the same culture conditions) appeared as diffuse bands, CD3-associated molecules isolated from CD3+WT31- populations displayed a homogeneous molecular mass.
(20) Although this operational classification does not produce etiologically homogeneous groups, it is believed to have pragmatic utility with respect to planning targeted surveillance and management strategies.
Idioblast
Definition:
(n.) An individual cell, differing greatly from its neighbours in regard to size, structure, or contents.
Example Sentences:
(1) Based on these results and other available information, two general models for the generation and accumulation of oxalate used for Ca oxalate formation in crystal idioblasts are proposed.
(2) The synthesis and accumulation within crystal idioblasts of PR-1 proteins, which are secreted by other cell types, indicates that idioblasts sort these proteins in a unique manner.
(3) Glycolate oxidase, which can oxidize glycolate to oxalate via glyoxylate, could not be found in microbodies of crystal idioblasts at any stage of development.
(4) Transgenic plants which constitutively express a chimeric gene encoding an acidic PR-1b isoform also accumulated PR-1 protein in the extracellular spaces and within crystal idioblast vacuoles.
(5) In situ hybridization analysis indicated that crystal idioblasts expressed the PR-1 genes at the mRNA level and suggested that PR-1 proteins were synthesized by these cells.
(6) The assumption that "injection" of proteolytic enzymes into healthy tissue by "shooting cells" (raphid-idioblasts), full of calcium oxalate needles, is responsible, must be viewed as the most readily acceptable explanation.
(7) Here we report the differential accumulation of these proteins within the vacuoles of specialized cells known as crystal idioblasts.
(8) The biochemical specialization of crystal idioblasts indicated by this study is also discussed with respect to differentiation of cellular structure and function.
(9) Thus, Lemna idioblasts lack the machinery for synthesis of oxalate from glycolate.
(10) Using catalase cytochemistry, microbodies were found to exist in crystal idioblasts but were smaller and fewer than those found in mesophyll cells.
(11) Glycine decarboxylase and RuBisCO could also be detected in increasing amount in mesophyll cells as they matured but could not be detected in idioblasts or were just detectable.
(12) Calcium oxalate formation in Lemna minor L. occurs in structurally specialized cells called crystal idioblasts.