(n.) One of the patches of villi found in some forms of placenta.
(n.) A leaf borne by the caulicle or radicle of an embryo; a seed leaf.
Example Sentences:
(1) A bovine pregnancy-associated glycoprotein (bPAG) of 67 kDa has previously been isolated from bovine fetal cotyledons.
(2) The mRNAs begin to accumulate during late embryogeny, reach maximal levels in seedling cotyledons, are not detected at significant amounts in leaves, and are distributed similarly in cotyledons and axes of seedlings.
(3) Dehydrin proteins were some of the most actively synthesised at about the time of maximum fresh weight and represent about 2% of protein in mature cotyledons.
(4) The birth weight, placental weight, volume, surface area, and number of cotyledon showed significantly decreasing trends (P less then 0.001) with the fall in socioeconomic group and maternal dietary intakes.
(5) Furthermore, catalases from leaves, stems and cotyledons were electrophoretically identical.
(6) The preparation and properties of a cell-free protein-synthesizing system from germinating pea cotyledons is described; polyuridylic acid must be added for l-phenylalanine incorporation.
(7) Polyadenylated RNA from 2-day-old cotyledons directed synthesis of 56-kDa subunits, whereas 59-kDa subunits predominated after in vitro translation of RNA from 4-day-old cotyledons.
(8) Angiotensin caused a 13-fold increase in the umbilical arterial resistance, whereas there were no changes in cotyledon or venous resistances.
(9) A histological evaluation of the cotyledons revealed an abnormal placentome structure in the first pregnancy but not in the second.
(10) Weights of the fetus, fetal membranes, cotyledons, caruncles, and uterus were recorded as were weights of the fetal liver, heart, kidneys, spleen, lungs, stomach complex, intestines, and semitendinosus muscle.
(11) The plants Arabidopsis thaliana grew from cotyledons to flowers during flight.
(12) The accumulation of total RNA transcripts of 18 late embryo-abundant (Lea) gene families, each encoding two closely related Lea mRNAs, was measured in cotyledon total RNA during embryogenesis and germination of Gossypium hirsutum L. by RNA dot hybridization.
(13) The aim of this work was to investigate the role of phosphoenolpyruvate carboxykinase (ATP:oxaloacetate carboxy-lyase (transphosphorylating) EC 4.1.1.49) in the conversion of fat to sugar by the cotyledons of seedlings of Cucurbita pepo.
(14) Tunicamycin inhibited both glycosylation and secretion of PHA by the COS1 cells, a finding indicating an essential role of the oligosaccharides for transport of PHA in these cells in contrast to the situation found in bean cotyledons.
(15) Isocitrate lyase (threo-DS-isocitrate glyoxylate-lyase, EC 4.1.3.1) was isolated from cotyledons of Lupinus seedlings, purified 100-fold with respect to its initial specific activity and characterized (Km, pH optimum, Mg2+ requirement, sulfhydryl inhibitors, and synthase activity).
(16) In the cells established from cotyledon, the 1-palmitoyl-2-linolenoyl species increased dramatically.
(17) The conclusion is drawn that the rate of turnover of phenylalanine ammonia-lyase in dark-grown mustard cotyledons is too rapid compared to the measured rise in enzyme activity for density labelling to reveal directly control over the rate of synthesis de novo by phytochrome.
(18) For this purpose we divided the flow length of the cotyledon in central and a peripheral part.
(19) Mixing of BAP-treated and untreated cotyledons before polysome isolation showed that the difference in their activity did not result from isolation procedure.
(20) Both AS1 and AS2 mRNAs also accumulate to high levels in cotyledons of germinating seedlings and in nitrogen-fixing root nodules.
Seedling
Definition:
(n.) A plant reared from the seed, as distinguished from one propagated by layers, buds, or the like.
Example Sentences:
(1) In aqueous solution, N-substituted isoxazolin-5-one derivatives, which occur in high amounts in seedlings of the tribe Vicieae, can be shown to undergo a proton exchange at C-4, indicative of their aromatic character.
(2) The PKABA1 transcript can also be induced by supplying low concentrations of ABA, and coordinate increases in ABA levels and PKABA1 mRNA occur when seedlings are water-stressed.
(3) Most definitive results were obtained when seedlings were ground in the presence of sand and in a medium containing sorbitol.
(4) Germinal excisions resulted in fully green seedlings.
(5) There were no detectable differences in the patterns of histone variants from immature grain (3-16 days after fertilization), from mature embryos, from coleoptiles and roots of 4-day-old, etiolated seedlings and from leaves of 10-day-old, light-grown seedlings.
(6) The maximal level as well as the kinetics of the induction were comparable between the suspension culture and soybean seedlings.
(7) Thirty-day-old corn seedlings, grown in the greenhouse with different concentrations of supplemental nitrate nitrogen, were moved to a constant-temperature growth chamber and sealed in a 560-liter tent made of polyvinyl chloride.
(8) The biological effect of vibration of Lactuca sativa dry seeds and seedlings cultivated at optimal (20 degrees C) and suboptimal (4 degrees C) temperatures was studied.
(9) The mRNAs begin to accumulate during late embryogeny, reach maximal levels in seedling cotyledons, are not detected at significant amounts in leaves, and are distributed similarly in cotyledons and axes of seedlings.
(10) Experiments involving one of the clear pathogenicity mutants indicated that the recovery of mutant cells from turnip seedlings 24 hr after inoculation was lower than for the wild type.
(11) The fourteenth case in the literature of lacrimal sac melanoma and possibly the first by tear seedling is illustrated.
(12) The development of PSII complex precedes that of PSI during the differentiation of B and M chloroplasts in expanding leaves of light-grown plants and during the greening of dark-grown etiolated seedlings.
(13) Hormone-like activity and efficiency of nitrate uptake by rice seedlings were stimulated by EAB and HEf, while HSp showed only negligible activity.
(14) Short pulses of red light induce in etiolated barley seedlings an enhanced synthesis of plastidic benzoquinones and vitamin K1, which can be reverted by subsequent irradiation with short pulses of far-red.
(15) The diurnal fluctuation in Cat3 mRNA persists when the seedlings are transferred to continuous light or darkness, which indicates the influence of a circadian rhythm.
(16) RNA blot analysis showed that HPR transcript levels rise significantly in the first eight days of light-grown seedling development.
(17) The results indicated that the mutant contains wild-type levels of the light-labile type 1 phytochrome polypeptide (PHYA), which has an apparent molecular mass of approximately 120 kD, but shows less than 1% (detection limit) of a light-stable polypeptide recognized by mAT1 in wild-type seedlings.
(18) A second category of 13 clones hybridized to transcripts that increased in abundance during post-germinative development of the seedling.
(19) CG-1 activity is constitutively expressed in tobacco seedlings grown in the absence of ultraviolet light as well as in seedlings induced for chalcone synthase gene expression by ultraviolet light irradiation.
(20) The oil was found non-phytotoxic to the seedling growth and seed germination of wheat.