What's the difference between intercalary and meristem?

Intercalary


Definition:

  • (a.) Inserted or introduced among others in the calendar; as, an intercalary month, day, etc.; -- now applied particularly to the odd day (Feb. 29) inserted in the calendar of leap year. See Bissextile, n.
  • (n.) Introduced or inserted among others; additional; supernumerary.

Example Sentences:

  • (1) During the past several years, the cost of excising and preparing intercalary allografts has been $600 per implant, while the cost for osteochondral allografts varied between $900 and $1,200.
  • (2) In the parotid glands numerous adrenergic and cholinergic axons are found beneath the basement membrane of acini and intercalary ducts in intimate association with the cells.
  • (3) We suggest that the lower efficiencies of the replication origins, or special regions of termination at these sites, are the primary cause of the under-replication, and that this under-replication is sufficient to confer the properties of intercalary heterochromatin.
  • (4) Arguments that the duplications are the result of cell interactions and intercalary growth that themselves arise from an abnormal polarity of the embryonic segment are presented.
  • (5) The loci-specificity of the X-chromosome intercalary parts' attachment to the nucleus envelope is found in Anopheles messeae.
  • (6) Terminal fields were identified in lamina intercalaris and medial habenular nuclei.
  • (7) Glycoproteins demonstrated in the epithelium are similar to those of intercalary ducts of parotid and submandibular glands, and may represent a primitive form of salivary secretion.
  • (8) Filaments incubated in low stain concentrations (0.0005%) showed cell abnormalities with all stain types, with FB-28 producing the most extreme deformations of both intercalary and apical cells.
  • (9) The molecular organization of the cloned DNA was compared with that of sequences isolated from regions of intercalary heterochromatin and also with genes which have been characterized from more conventional euchromatic regions.
  • (10) These data are compatible with a cell-movement:intercalary cell division hypothesis in which duplication is dependent upon specific positional confrontation and subsequent cell division.
  • (11) Incidence of supernumerary tests was 28%, their distribution being caudal (80%), intercalary (8%), ramal (5%) and anterior 1%; 6% had both caudal and intercalary teats.
  • (12) It is argued that the terms n. geniculatus dorsalis p. principalis and p. intercalaris, n. superficialis magnocellularis (in its wrong usage), n. lamminaris precommissuralis, n. lentiformis mesencephali p. medialis, p. parvocellularis and p. magnocellularis should be considered obsolete, on various embryological and hodologic grounds.
  • (13) Study of the genetics of mutant haplotypes suggests that the observed effects on meiosis and embryonic development may be due to an altered form of intercalary DNA (iDNA) in the relevant chromosomal region (band 17B).
  • (14) We treated 21 aggressive and malignant bone tumors by wide resection and replacement with deep-frozen osteoarticular and segmental (intercalary and block) allografts.
  • (15) This pattern has not been observed previously and is designated as type E. Other new observations were: chromosome 5 was composed of pericentromeric heterochromatin, a lightly stained intercalary band at the middle portion of the short arm, and a lightly stained interstitial band at the terminal region of the long arm.
  • (16) Preparation and banking of massive osteoarticular allografts and intercalary bone allografts have been performed for the past 12 years.
  • (17) The labeling index of the nuclei of the centroacinar cells was 2.5 times higher than that of the acinar epithelium and amounted to 0.48 plus or minus 0.17%, whereas the epithelium of the intercalary ducts had an extremely low labeling index: 0.09 plus or minus 0.09%, compared with 0.27 plus or minus 0.09% for the intralobular ducts and 0.50 plus or minus 0.08% for the interlobular ducts.
  • (18) Staining for esteroproteases was confined to the periluminal rims of intercalary and striated ducts.
  • (19) Homologous 125I-5S rRNA was found to hybridize to three sites in the polytene chromosomes of P. coccineus: the proximal heterochromatic segment in the long arm of chromosome pair I (which also bears the sequences complementary to 25S, 18S and 5.8S RNAs), most of the proximal heterochromatic segment plus a small portion of adjoining euchromatin in the long arm of chromosome pair VI and the large intercalary heterochromatic segment in the same chromosome pair.
  • (20) The authors concluded that atrophic changes found in the intercalary nucleus may be probable of transsynaptic in character.

Meristem


Definition:

  • (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.

Words possibly related to "meristem"