What's the difference between pappus and seed?

Pappus


Definition:

  • (n.) The hairy or feathery appendage of the achenes of thistles, dandelions, and most other plants of the order Compositae; also, the scales, awns, or bristles which represent the calyx in other plants of the same order.

Example Sentences:

  • (1) In a series of in virtro experiments (n = 64) using the mature flowers or seeds and pappus hairs of Karoo bushes Chrysocoma ciliata, Dimorphotheca cuneata, Eriocephalus ericoides, Gazania krebsiana and Gnidia polycephala, small phytobezoars were formed from material of E. ericoides, G. krebsiana and G. polycephala either alone or in combinations.
  • (2) In a small in vivo trial, 4 groups of one sheep and one goat each were fed 10% of either C. ciliata, E. ericoides, G. polycephala seeds and pappus hairs, or a mixture of all 3, added to a basal diet of milled lucerne fed for up to 31 d. Small phytobezoars were formed in the goats but not the sheep receiving C. ciliata, and G. polycephala material.
  • (3) Of particular interest was the presence of annular thickenings as well as terminal hooks on both bezoar fibres and pappus hairs, both of which structures are believed to be involved in the formation of bezoars.
  • (4) The chemical composition of bezoars found in goats and sheep, resembled that of pappus hairs and stems of the Karoo bushes Eriocephalus ericoides and Gnidia polycephala more closely than that of mohair.
  • (5) This close similarity between the fibres in bezoars and those of pappus hairs in the 3 plant species studied, leads to the conclusion that the bezoars consisted largely of pappus hairs of these and possibly other species.
  • (6) The microscopic structure and ultrastructure of these pappus hairs moreover closely resembled the fibres of bezoars but were quite distinct from that of hair or wool.
  • (7) These diameters were very similar to those of the pappus hairs surrounding the seeds of the Karoo bushes Chrysocoma ciliata, Eriocephalus ericoides and Gnidia polycephala (means of 6.06 microns, 16.67 microns and 22.73 microns respectively).

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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