(1) We also investigated the regulation of both enzyme types in P. sylvestris plantlets exposed to stress.
(2) The construct was not expressed at significant levels in leaves of juvenile plants or plantlets cultured in vitro, but was expressed at high levels in explants cultured on medium containing 0.3 to 0.4 M sucrose.
(3) The histone H3 and H4 genes are shown to be expressed in both Arabidopsis plantlets and transitory multicellular suspension.
(4) Plantlets were regenerated from one transgenic cell line.
(5) Plantlets induced axenically also grew roots on the generalized shoot-inducing medium so that no special rooting medium was required.
(6) However, the stem of sweet potato plantlets grown axenically on agar medium containing sucrose was found to accumulate large amounts of sporamin.
(7) However, leaves from in vitro grown plantlets exhibited an elevated GUS expression.
(8) Therefore, heat-shock seems to evoke a responsiveness of plantlets similar to that obtained earlier by other authors using pre-illumination.
(9) In healthy in vitro grown plantlets the PR-b1 concentration is similar in roots and leaves (200 ng per gram of fresh material).
(10) Upon illumination of heat-shocked plantlets accumulation of chloroplast pigments as well as that of individual thylakoid membrane proteins and their corresponding mRNAs occur much faster than in the etiolated controls.
(11) Homogenate fractions from etiolated pea plantlets showed tyrosine kinase activity when incubated with [32P]ATP and substrates like polyamino acid polymer (Glu-Ala-Tyr)n or [Val5]angiotensin II.
(12) Plantlets can be regenerated efficiently from seedling hypocotyls.
(13) Assays of these bacteria on carrot disks, Kalanchoë leaves, and SR1 Nicotiana tabacum plantlets showed that mini-T plasmid containing full length T-DNA including left and right borders was highly virulent, as were mini-T plasmids containing all onc (oncogenicity) genes and only the right border.
(14) Some plantlets also were produced in the absence of growth regulators.
(15) Appropriately labelled (deuterium markers) fatty acid homologues were synthesized and applied to Senecio plantlets to unravel the mechanistic aspects.
(16) However, in fully regenerated plants growing photoautotrophically in growth-room conditions, although the constructs were still expressed, the gamma polypeptide did not accumulate to the same levels as in in vitro plantlets and new isoenzyme activities were now barely detectable.
(17) Leaf bases, scapes, peduncles, inner bulb scales and ovaries were cultured successfully in vitro and plantlets were induced readily at various concentrations of growth regulators.
(18) To analyze the chloroplast genome more rapidly in those in vitro grown plantlets, we also developed a simple method which is applicable for the amplifications and sequencing of chloroplast 16S rRNA fragment from either 0.15 g of tobacco leaf or stem tissue.
(19) (I) and (II) exhibited, on the Phanerogame germination and plantlet growth, in Petri box, an inhibitor effect, the intensity of which is of the same order as the one of 2,4 D (2.4-dichloro-phenoxyacetic acid).
(20) The resulting plantlets had potato morphology and were analyzed with respect to their mitochondrial DNA and chloroplast DNA.
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.