What's the difference between polyspermous and seed?

Polyspermous


Definition:

  • (a.) Containing many seeds; as, a polyspermous capsule or berry.

Example Sentences:

  • (1) Furthermore, Hynobius eggs fertilized by natural mating incorporated only one sperm nucleus, and experimentally polyspermic eggs underwent multipolar division.
  • (2) Correction of polyspermy through pronucleus extraction in the absence of membrane relaxants was applied to 25 polyspermic human zygotes.
  • (3) In our limited number of studied cases there was no indication of an aberrant phagocytosis pattern in coronas from polyspermic eggs or from oocytes that did not become fertilized.
  • (4) Fertilization anomalies (possibly increased by in vitro procedures) were recorded: 1.6% of embryos resulted from parthenogenesis and 6.4% were polyploid (mainly polyspermic).
  • (5) These triploid oocytes were suspected to be the result of polyspermic fertilization in vitro.
  • (6) The depolarization was slower, and the fertilization potential was about 10 mV more negative in eggs of both F. vesiculosus and Pelvetia fertilized in 45-mM Na+ ASW; many of these eggs were polyspermic.
  • (7) Haploid and diploid parthenogenotes as well as polyspermic and digynic fertilized eggs each segregated their centrosomes to organize a bipolar mitotic apparatus.
  • (8) Eggs ovulated after gonadotrophin treatment during the luteal phase of the cycle show a high incidence of polyspermic penetration (60.6%), as do those shed at estrus in animals treated with progesterone systemically (40%) or by local microinjections in the oviduct wall (32.3%).
  • (9) Eggs of immature female mice underwent polyspermic fertilization more often than those of young adults and older females, and the production of diploid oocytes was more frequent in immature females than in the other age groups.
  • (10) Calcium-ionophore sperm treatment had no effect on the polyspermic oocyte rate (POR) or the mean number of swollen sperm nuclei per penetrated oocyte (Pd) or per injected sperm (SR).
  • (11) FCS gave significantly higher rates of fertilization (57-71%) than did ECS (34-52%), but the proportions of polyspermic fertilization were significantly higher in the former (8-19%) than in the latter (2-3%).
  • (12) Immature oocytes showed a higher percentage of polyspermic fertilization (32%) compared to that of mature oocytes (6%).
  • (13) Topics include host skin penetration behavior in blood flukes, oocyte maturation in starfishes, prevention of polyspermic fertilizations in sea urchins, ion regulation in bivalves, egg production in snails, egg release in scallops, neurobiology of Aplysia, hatching in barnacles, and release of egg-laying behavior in some insects.
  • (14) The highest number of penetrated oocytes (99.2%) was found in cultures with progesterone, but 83.7% oocytes were polyspermic and in 77.0% oocytes a normal male and a female pronucleus was formed, it was the highest incidence among all hormones tested.
  • (15) Human unfertilized eggs and blastomeres from human polyspermic embryos also have been analyzed by in situ hybridization with chromosome specific probes.
  • (16) Sperm nuclear enlargement during phase D was significantly less in polyspermic and polygynic zygotes.
  • (17) Analysis of semen samples obtained from 86 donors, comprising azoospermic, oligospermic, normospermic and polyspermic individuals, suggests that immunosuppression of the seminal plasma has no correlation with either the sperm density or the protein content of seminal plasma.
  • (18) The significance of these results is discussed in relation to the use of polyspermic human oocytes as a model for the study of the early molecular events triggered by fertilization.
  • (19) One or more oocytes were obtained in 29 aspirations (97%) for a total of 52 oocytes (average 1.7); 37 fertilized (71%), two were polyspermic, and 35 cleaved (67%).
  • (20) The number of oocytes obtained and the fertilization rate and polyspermic fertilization rate were not significantly different between groups; 10.1% of patients in group A conceived but no patient conceived in group B, yielding an overall pregnancy rate of 8.7%.

Seed


Definition:

  • (pl. ) of Seed
  • (n.) A ripened ovule, consisting of an embryo with one or more integuments, or coverings; as, an apple seed; a currant seed. By germination it produces a new plant.
  • (n.) Any small seedlike fruit, though it may consist of a pericarp, or even a calyx, as well as the seed proper; as, parsnip seed; thistle seed.
  • (n.) The generative fluid of the male; semen; sperm; -- not used in the plural.
  • (n.) That from which anything springs; first principle; original; source; as, the seeds of virtue or vice.
  • (n.) The principle of production.
  • (n.) Progeny; offspring; children; descendants; as, the seed of Abraham; the seed of David.
  • (n.) Race; generation; birth.
  • (v. t.) To sprinkle with seed; to plant seeds in; to sow; as, to seed a field.
  • (v. t.) To cover thinly with something scattered; to ornament with seedlike decorations.

Example Sentences:

  • (1) Thus, a dietary 'no observable effect level' for subchronic ingestion of C. obtusifolia seed in rats was less than 0.15%.
  • (2) Cells (1 x 10(5)) were seeded in 12- x -75-mm tissue culture tubes and incubated with various doses of IL-1 beta, IL-1 alpha, TNF-alpha, and IFN-gamma, alone or in specific combinations, for 15 min, two, 12, 24, and 72 h. PGE concentrations in the media were measured by radio-immunoassay.
  • (3) Cissus quadrangularis was mutagenic, while 'decoctions' of cumin seeds, aniseeds and ginger were not.
  • (4) The major protein component in seeds is storage protein.
  • (5) He fashioned alliances with France in the 1950s, and planted the seeds for Israel’s embryonic electronics and aircraft industries.
  • (6) Furthermore, the animals did not increase their intake of sunflower seeds, a preferred diet for hamsters.
  • (7) Although not yet characterized, glycinin-related genes could encode other glycinin subunit families whose members accumulate in minor amounts in seeds.
  • (8) A procedure for cultivation of the seed material for biosynthesis of eremomycin providing an increase in the antibiotic yield by 24 per cent was developed.
  • (9) At 10 weeks only the seeded grafts could be assessed because all of the control grafts had occluded.
  • (10) Cells dissociated from 6-day rat cerebellum were seeded on glass coverslips coated with polylysine on one half and hyaluronectin on the other.
  • (11) The observed signals from germinating seeds of Phaseolus aures and decaying leaves of Eucalyptus are presented to show that the signals have characteristic kinetics and intensity.
  • (12) The accumulation of the mRNA corresponding to a rice high pI alpha-amylase gene, OSamy-c, was stimulated 20-fold by exogenous GA3 in half-seeds lacking embryos.
  • (13) Previous work from this laboratory had shown that Leguminosa seed extracts contain lectin-bound proteins.
  • (14) We therefore surveyed patients with Parkinson's disease (PD) regarding early adult consumption of fruits and vegetables usually eaten raw, with seeds that are swallowed or scraped with the teeth.
  • (15) Y-79 cells, seeded into a Matrigel matrix, form round colonies over a 3-week period similar to those of control, weakly metastatic murine melanoma cells.
  • (16) During the procedure of coronary artery bypass graft surgery (CABG), the release of free oxygen radicals as a result of ischemia and reperfusion which plants the seeds of post-operative low cardiac output and arrhythmias has grave consequence on the reestablishment of cardiac function.
  • (17) Production of the vaccine basically consists in the multiplication of the working seed under standardized, well-defined conditions guaranteeing consistency of the vaccine lots.
  • (18) In cereals and legume seeds the activity of chymotrypsin inhibitors is generally lower than that of the trypsin inhibitors.
  • (19) The amino acid sequence of the smaller subunit of conglutin gamma, the simplest of the three globulins from the seeds of Lupinus angustifolius cv.
  • (20) Virus in the seed lot was not identified correctly, and the titer of homologous antiserum was mistakenly considered to be low as a result of neutralization tests conducted with the aggregated virus.

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