(n.) A tissue of growing cells, or cells capable of further division.
Example Sentences:
(1) In apical meristem, on the other hand, the level of d-3-phosphoglycerate dehydrogenase exceeded that of d-glycerate dehydrogenase at all time periods studied.
(2) Treatments with tritiated thymidine (TdR-(3)H) have revealed the existence of two populations of mitotically active cells in meristems of lateral roots of Vicia faba.
(3) All of the transcripts were highly expressed in the protoderm of the shoot apical meristem.
(4) The third mRNA is abundant in seedling axes and accumulates specifically in the ground meristem and mature cortex of hypocotyls and roots.
(5) The rate of RNA and protein synthesis in resting and growing meristem tissues from isolated tuber growth points under their incubation with labelled precursors is studied.
(6) Treatment of Vicia faba main root meristems with methyl iodide (MeI) 2 h before challenge treatment with triethylene melamine (TEM) significantly reduced the yield of metaphases with chromatid aberrations, i.e., resulted in clastogenic adaptation.
(7) About 60 affected phragmoplast function in root meristems.
(8) We have developed a procedure for a high-yield isolation of protoplasts allowing an accurate flow-cytometric analysis with a few micrograms of meristem tissues.
(9) The study was carried out on nuclei isolated from the root meristem of Pinus silvestris.
(10) The rapidity and reversibility of such responses, and their apparent independence of changes in carbon supply or meristem cell turgor are held to support the hypothesis that chilling alters the physical properties of the walls of extending cells within the meristematic zone.
(11) The transcription of the pea ENOD2 gene starts when the inner cortical cells develop from the nodule meristem.
(12) Arabidopsis flowers develop from groups of undifferentiated cells on the flank of an inflorescence meristem.
(13) Chromosomal DNA fiber replication was investigated in the shoot meristem of mustard plants during the morphogenetic transition from the leaf-forming (vegetative) to the flower-forming (evoked) condition.
(14) That is, although NodH mutants lose the ability to elicit root hair curling (Hac-), infection threads (Inf-), and nodule meristem formation (Nod-) on the homologous host alfalfa, they gain the ability to be Hac+ Inf+ Nod+ on a nonhomologous host such as common vetch.
(15) The kinetics of nodule formation by these mutant strains, by an exoB mutant, and by mixed mutant inocula suggest that the gene products required for nodule invasion may also influence nodule meristem induction.
(16) Analysis of genetic mosaics and direct observation with the SEM have broken leaf development into three distinct phases: recruitment of cells within the meristem, cell division into the 0.6-mm tall primordium, and postprimordial division and differentiation into the mature leaf.
(17) Stage 1 begins with the initiation of a floral buttress on the flank of the apical meristem.
(18) In the present paper, this caffeine effect has been analyzed in Allium cepa root meristems growing at different culture temperatures under steady-state kinetics.
(19) In order to determine the best conditions to carry out quantitative ultrastructural studies in plant specimens, five different fixation techniques, including some of the most reported electron microscopy fixatives (glutaraldehyde-paraformaldehyde, osmium tetroxide, potassium permanganate), were assayed in onion root meristems to check their ability to induce morphometric changes in Golgi apparatus ultrastructure.
(20) Changes in the internal structure of the mitochondria having the developed system of crystae in the actively growing apices and those with weakly developed crystae in the resting seed or low active "waiting meristem" are much more pronounced.
Tissue
Definition:
(n.) A woven fabric.
(n.) A fine transparent silk stuff, used for veils, etc.; specifically, cloth interwoven with gold or silver threads, or embossed with figures.
(n.) One of the elementary materials or fibres, having a uniform structure and a specialized function, of which ordinary animals and plants are composed; a texture; as, epithelial tissue; connective tissue.
(n.) Fig.: Web; texture; complicated fabrication; connected series; as, a tissue of forgeries, or of falsehood.
(v. t.) To form tissue of; to interweave.
Example Sentences:
(1) In conclusion, the efficacy of free tissue transfer in the treatment of osteomyelitis is geared mainly at enabling the surgeon to perform a wide radical debridement of infected and nonviable soft tissue and bone.
(2) If ascorbic acid was omitted from the culture medium, the extensive new connective tissue matrix was not produced.
(3) The interaction of the antibody with both the bacterial and the tissue derived polysialic acids suggests that the conformational epitope critical for the interaction is formed by both classes of compounds.
(4) The Cavitron Ultrasonic Surgical Aspirator (CUSA) is a dissecting system that removes tissue by vibration, irrigation and suction; fluid and particulate matter from tumors are aspirated and subsquently deposited in a canister.
(5) Bilateral symmetric soft-tissue masses posterior to the glandular tissue with accompanying calcifications should suggest the diagnosis.
(6) In cardiac tissue the adenylate system is not a good indicator of the energy state of the mitochondrion, even when the concentrations of AMP and free cytosolic ADP are calculated from the adenylate kinase and creatine kinase equilibria.
(7) Spectrophotometric determination of the sulfhydryl content in the animal tissue before (control) and after using 6,6'-Dithiodinicotinic acid is applied.
(8) Microionophoretically applied excitatory amino acids induced firing of extracellularly recorded single units in a tissue slice preparation of the mouse cochlear nucleus, and the similarly applied antagonist 2-amino-5-phosphonovalerate (2APV) was demonstrated to be a selective N-methyl-D-aspartate (NMDA) receptor antagonist.
(9) The vascular endothelium is capable of regulating tissue perfusion by the release of endothelium-derived relaxing factor to modulate vasomotor tone of the resistance vasculature.
(10) Quantitative determinations indicate that the amount of PBG-D mRNA is modulated both by the erythroid nature of the tissue and by cell proliferation, probably at the transcriptional level.
(11) The human placental villus tissue contains opioid receptors and peptides.
(12) Some of those drugs are able to stimulate the macrophages, even in an aspecific way, via the gut associated lymphatic tissue (GALT), that is in connection with the bronchial associated lymphatic tissue (BALT).
(13) The diffusion of Myocamicin in the prostatic tissue of patients undergoing prostatectomy after a single oral dose of 600 mg has been studied.
(14) Blood flow decreased immediately after skin expansion in areas over the tissue expander on days 0 and 1 and returned to baseline levels within 24 hours.
(15) However, decapitation did not eliminate the sex difference in the tissue content of P4 during control incubations.
(16) Content of cyclic nucleoside monophosphates was decreased in all the eye tissues in experimental toxico-allergic uveitis as well as penetration of cAMP into the fluid of anterior chamber of the eye.
(17) Histological studies of nerves 2 years following irradiation demonstrated loss of axons and myelin, with a corresponding increase in endoneurial, perineurial, and epineurial connective tissue.
(18) None of the other soft tissue layers-ameloblasts, stratum intermedium or dental follicle--immunostain for TGF-beta 1.
(19) One of these antibodies, MCaE11, was used for immunohistochemical detection of MAC in tissue and for quantification of the fluid-phase TCC in ethylenediaminetetraacetic acid plasma.
(20) A quantitative comparison of tissue distribution and excretion of an orally administered sublethal dose of [3H]diacetoxyscirpenol (anguidine) was made in rats and mice 90 min, 24 hr, and 7 days after treatment.