What's the difference between aftershaft and plumule?

Aftershaft


Definition:

  • (n.) The hypoptilum.

Example Sentences:

Plumule


Definition:

  • (pl. ) of Plumula
  • (n.) The first bud, or gemmule, of a young plant; the bud, or growing point, of the embryo, above the cotyledons. See Illust. of Radicle.
  • (n.) A down feather.
  • (n.) The aftershaft of a feather. See Illust. under Feather.
  • (n.) One of the featherlike scales of certain male butterflies.

Example Sentences:

  • (1) Increased transcription rates were observed within 5 min after application of auxins to excised plumules, and half-maximal to maximal transcription rates were achieved by 15 min after application of auxins.
  • (2) Nuclear proteins extracted from soybean plumules were shown to bind double-stranded oligonucleotides homologous to AT-rich sequences in the 5' flanking regions of soybean beta-conglycinin, lectin, leghemoglobin and heat shock genes.
  • (3) The chick of the DTW mutant shows cream yellow plumules similar to those of the White Leghorn chick.
  • (4) The abundance of phyA RNA1 in the plumule and hook regions was 3-5-fold higher than that of RNA2, whereas the ratio of their abundance was approximately unity in other regions.
  • (5) In the growing pea seedling (7 days old), about 3% of the total activity was in the plumule, 9% in the root and the remainder in the cotyledons.
  • (6) The rates of transcription of the auxin-responsive sequences were 10- to 100-fold greater with nuclei isolated from auxin-treated plumules than with those from untreated plumules.
  • (7) In both the root and the plumule the activity on a wet- or a dry-weight basis was highest in the growing tip.
  • (8) Nuclei isolated from excised soybean plumules that were treated with 2,4-dichlorophenoxyacetic acid (2,4-D) were active in transcription of four auxin-regulated genes or DNA sequences, which have been described previously (G. Hagen, A. Kleinschmidt, and T. Guilfoyle, Planta 162:147-153, 1984).
  • (9) The transcriptional response was also observed with hypocotyls of intact soybean seedlings and hypocotyl sections, as well as with green bean and mung bean plumules that were treated with 2,4-D. Other auxins, including 2,4,5-trichlorophenoxyacetic acid, alpha-naphthaleneacetic acid, and indole-3-acetic acid, also induced the transcriptional response.
  • (10) Significant differences in some agronomical characters were achieved among somaclones of seed and plumule meristem origin.
  • (11) Swollen down plumules, an embryonic lethal condition characterized by an enlargement of the dermal pulp cavity of down feathers, has been observed in a subline of turkeys.
  • (12) Phenotypic variation of the disorder is expressed in the number of pterylae that contain the abnormal down plumules.

Words possibly related to "aftershaft"