(n.) That part of the stamen containing the pollen, or fertilizing dust, which, when mature, is emitted for the impregnation of the ovary.
Example Sentences:
(1) The spatial distribution of transcripts in the anther wall was confined to that region of the anther that surrounds the locule.
(2) Two hundred and twenty-six patients were scratch tested over a 10-month period with the pollen and anthers of six common hay fever plants.
(3) Houston bring on Weaver for Bruin (who has cut a rather lonely figure up front, all alone) 3.38am GMT 72 mins SKC win anther corner and Zusi puts it into the right area but again it's met by a Houston head.
(4) mRNA levels for these cDNA clones were markedly reduced in the anthers of several independent male-sterile mutants of tomato.
(5) Particulate fractions from mature rape anther tissue catalysed the incorporation of glucose from UDPglucose into endogenous lipids.
(6) In the blind mutant, whose flower limbs are transformed into antheroid structures on top of normal tubes, identical expression levels of both genes were observed in the antheroid structures as in normal anthers.
(7) The tissue localization of transcripts corresponding to five anther-specific cDNA clones isolated from tomato was determined.
(8) Rice (Oryza sativa L., 2n=24) anthers containing microspores in the early-uninucleate to first-mitosis stages were induced successfully to develop into plants in vitro through an intermediary step of callus formation.
(9) We traced the patterns of cell division during maize anther development by inducing sector boundaries that preceded the earliest events of anther initiation.
(10) Furthermore, the absence of immunoreactive CHI was demonstrated in a mutant of P. hybrida (genotype popo) which accumulates 2',4,4',6'-tetrahydroxy-chalcone in anthers as a consequence of lack of enzyme activity.
(11) The strong correlation between cell lineage and cell fate in the maize anther has implications for studies on plant evolution and the genetic improvement of cereals by DNA transformation.
(12) A total of 19 independent cDNAs have been isolated by differential screening whose temporal expression patterns overlap and which together cover the stages of anther development from pre-meiotic microsporocytes to tri-nucleate pollen grains.
(13) In anthers, expression was detected at an earlier stage of flower development with GUS activity restricted to the tapetal cell layer.
(14) With both constructs, the appearance of GUS activity in developing anthers was correlated with the onset of microspore mitosis and increased progressively until anthesis (pollen shed).
(15) This promoter construct was subsequently used to drive an antisense chs gene in transgenic petunia, which led to the inhibition of pigment synthesis in anthers of five of 35 transformants.
(16) Ultra-thin sections of vegetative tissues from birch (anthers and leaves) were labeled for pollen antigens and allergens using a commercial rabbit IgG antibody preparation directed against birch pollen antigens and allergens.
(17) At flower maturity, transcripts specified by each of the cDNAs were also detected in the epidermal and endothecial cell layers of the anther wall.
(18) In petunia, the gene Po regulates the expression of CHI in anthers: PoPo petunia lines contain CHI enzyme activity in petals and anthers, whereas popo lines contain the CHI enzyme only in petals but not in anthers.
(19) In flowers, expression was observed in sepals, anthers, and carpels, but not in petals.
(20) Transgenic plants with white anthers were male sterile due to an arrest in male gametophyte development.
Antler
Definition:
(n.) The entire horn, or any branch of the horn, of a cervine animal, as of a stag.
Example Sentences:
(1) We conclude from this study that there is little or no seasonal photoperiodic entrainment of the antler and testicular cycles of males in this population of axis deer.
(2) Thyroxine (T4), triiodothyronine (T3), and alkaline phosphatase (AP) were assayed monthly in white-tailed deer plasma obtained from the antler (A), jugular (J), and the saphenous (S) veins during the period of antler growth and the period of mineralization.
(3) From the polymorphic loci examined, certain alleles at Idh-2, Me-1 and Acp-1 showed significant associations with a special development of body and antler characters selected for by hunters.
(4) The major aims of this study were to identify and localize by immunohistochemical techniques the type of innervation present, and to find out whether nerve fibres could exhibit growth rates comparable to those of antler.
(5) Detailed information obtained from 4 stags indicated that there was a fixed relationship between stage of the antler cycle and testis diameter; minimum testis diameter occurred 1-2 months after antler casting whereas maximum testis diameter occurred when stags were in hard antler.
(6) Proteinaceous extracts of deer and antelope antlers and bovine and rhinoceros horn were prepared by solubilizing 10 mg of horn sample in 200 microL of a solution containing 12M urea, 74mM Trizma base, and 78mM dithiothreitol (DTT).
(7) Unlike human bone, reindeer antler always shows a large post-yield strain, and it is possible to distinguish pre-yield and post-yield behaviour.
(8) Four adult male fallow deer were investigated for 1-4 consecutive years to study the relationships between annual changes in testis volume, sperm quality and antler status.
(9) Artificial extension of day-length in adult male white-tailed deer during the autumn induced: (a) premature casting of antlers, early onset of the new antler growth and out of season mineralization, (b) early elevation of plasma levels of prolactin, LH, FSH, testosterone and alkaline phosphatase and (c) out of season hair molt.
(10) Under both sets of conditions, antlers were repeatedly shed and replaced, usually in synchrony with every other time the day lengths were changed.
(11) An anti-inflammatory compound was purified and isolated from pilose antler of Cervus nippon Temminck by dialysis, gel filtration and ion-exchange chromatography techniques.
(12) Cleaning of velvet and casting of antlers following castration were unaffected by denervation.
(13) The composition of the antlers did not vary significantly between penned and grazing stags or with age.
(14) The data indicate that: 1) similarly to other mammals, deer exhibit peak levels of M during the dark phase; 2) 5 mg of M given orally caused a rapid elevation of M levels in blood followed by a depression of the normally present night-time peak; and 3) midscotophase levels of M exhibit very pronounced seasonal fluctuations which might be related to yearly cycles, such as the reproduction, hair molt, and antler growth.
(15) Electrodes were connected to a high input impediance microvoltmeter, and potentials on the surface of antlers of mature deer were measured during the antler growth cycle.
(16) Years ago, when I was studying anthropology at university, one of my female professors held up a photograph of an antler bone with 28 markings on it.
(17) Both bucks also had patchy areas of alopecia around the base of antlers.
(18) The study, spread over six consecutive years, reveals the following seasonal T changes: Minimum concentrations in November or December, around antler casting and at early antler growing phase; increasing levels in the course of late antler development (mineralization) with relatively high values around velvet shedding; peak levels occurring during onset of rutting period followed by a sharp decrease after the rut; and distinct and oscillating T peaks during late winter and spring.
(19) Biopsy samples of the main beams and tines were obtained from the antlers of mature Rocky Mountain mule deer (Odocoileus hemionus hemionus) during the rapid phase of the antler grow-th cycle.
(20) These antlers shed their velvet in the fall, and in succeeding years are replaced by larger outgrowths not exceeding 7 cm in length.