What's the difference between scutellum and scutum?
Scutellum
Definition:
(n.) A rounded apothecium having an elevated rim formed of the proper thallus, the fructification of certain lichens.
(n.) The third of the four pieces forming the upper part of a thoracic segment of an insect. It follows the scutum, and is followed by the small postscutellum; a scutella. See Thorax.
(n.) One of the transverse scales on the tarsi and toes of birds; a scutella.
Example Sentences:
(1) 3. beta-Sitosteryl linoleate is the major sterol ester of the scutellum and endosperm.
(2) The scutellum of maize is a fully differentiated, nondividing, diploid embryonic tissue.
(3) To our knowledge, this is the first observation of a gradient-type spatial pattern of a eukaryote gene activation occurring in a stable, virtually nondividing tissue such as the maize scutellum.
(4) The gene for isoenzyme I is expressed in the aleurone, scutellum and prominently in young leaves.
(5) A gene (Adhr(r)) which controls the activity of alcohol dehydrogenase in the scutellum of maize has been found.
(6) Immunofluorescent microscopy demonstrates that L3 protein accumulation is tissue-specific, confined to the embryo (scutellum and embryonic axis) and the aleurone layer of developing seed.
(7) In the scutellum of maize kernel after imbibition, lipase activity increased rapidly, concomitant with the decrease in storage triacylglycerols.
(8) In contrast, the gene for isoenzyme EI is transcribed at relatively high levels in young leaves, but also in the scutellum and aleurone of germinated grain.
(9) In situ RNA hybridization in isolated germinating embryo sections demonstrates that the PRms gene is expressed in the scutellum, particularly in a group of inner cells, and in the epithelium lying at the interface of the scutellum and the endosperm.
(10) The HRGP mRNA accumulates in the embryo axis and not in the scutellum and preferentially in dividing and provascular cells.
(11) This marker is R-scm3, which conditions anthocyanin pigment in the aleurone of the endosperm and the scutellum of the embryo.
(12) The scutellum and endosperm together contain 80% of the sterol ester of the seedling.
(13) Enzyme activity in Adh1-3F1124 sporophytic organs (scutellum and roots) is greatly reduced, while activity levels remain normal in the male gametophyte (pollen).
(14) Rates of catalase synthesis and degradation were measured in the scutellum of the germinating maize seedling by the technique of Price, Sterling, Tarantola, Hartley & Rechcigl [J. Biol.
(15) Drones with pollinia on their scutellum visit other orchids, which facilitates pollination.
(16) On germination, there is a transient re-appearance of mRNA to pZE40, with accumulation specifically restricted to the scutellum of the seedling.
(17) The composition of the sterol ester fraction of the shoot, root, scutellum and endosperm of 10-day-old maize seedlings was investigated.
(18) Northern-blot analyses with gene-specific probes indicate that the (1-->3)-beta-glucanase isoenzyme GIII mRNA accumulates in developing leaves; no mRNA transcripts were detected in the aleurone or scutellum of germinated grain, or in mature vegetative tissues.
(19) Histochemical analysis of transgenic plants and their progeny showed that the maize Adh1 promoter is constitutively expressed in root caps, anthers, anther filaments, pollen, scutellum, endosperm and shoot and root meristem of the embryo.
(20) In situ hybridization showed localization of the 1.1-kilobase rice lectin mRNA in root caps and specific cell layers of the radicle, coleorhiza, scutellum, and coleoptile.
Scutum
Definition:
(n.) An oblong shield made of boards or wickerwork covered with leather, with sometimes an iron rim; -- carried chiefly by the heavy-armed infantry.
(n.) A penthouse or awning.
(n.) The second and largest of the four parts forming the upper surface of a thoracic segment of an insect. It is preceded by the prescutum and followed by the scutellum. See the Illust. under Thorax.
(n.) One of the two lower valves of the operculum of a barnacle.
Example Sentences:
(1) 36.3% of the children had a residual or a recurrent cholesteatoma, 19.5% after open technique, 61.2% after a combined approach operation, 17% after atticoantrotomy and reconstruction of the scutum and 29.6% after a transcanal tympanoplasty.
(2) The structure of scutum, organs of gnathosoma and coxae, chaetotaxy of idiosoma and gnathosoma were used for differential diagnosis.
(3) The marine gastropods Acmaea (Collisella) limatula and Acmaea (Notoacmea) scutum respond to distant predatory starfish (i.e.
(4) The scutum "pseudotumor" appearance caused by incomplete pneumatization was seen frequently, and should not be mistaken for mastoiditis or an osteoma.
(5) A wide range of structures was used for species identification as follows: peculiarities of scutum, peritreme, anal valve, organs of gnathosoma, chaetotaxy and morphometrical characteristics and ratios.
(6) Reliable differences have been noted in the sizes of scutum, gnathosoma and its appendages in male and female nymphs of both species.
(7) Incidence of retraction pocket and recurrent cholesteatoma in the attic after surgery for middle ear cholesteatoma using the staged intact canal wall technique were investigated in 95 ears of 91 patients, all of which had various degrees of bone defect in the tympanic scutum.
(8) Here, the ultrastructure of sensory cells on the mantle tentacles of N. scutum is examined by transmission electron microscopy to determine if morphological types of sensory cells can be correlated with known sensory capabilities.
(9) Incidence of retraction troubles was higher in Types II and III, probably because these procedures were indicated in ears with large scutum defects.
(10) In D. niveus male and female nymphs differ in the length of II-III palpal joints and width of gnathosoma, in D. ushakovae in the length of scutum and its proportions, in the width of gnathosoma and hypostome and in the diameter of peritreme.
(11) However, injection of IVM, dimethylsulphoxide (vehicle for IVM) or distilled water through the articulation between the capitulum and scutum ('anterior injection'), did markedly reduce the wax coating and increased egg permeability.
(12) The dorsal part of the head can also be transformed into second thoracic structures (scutum) indicating that Antp indeed specifies the second thoracic segment.
(13) It resumes at the superior aspect of the external auditory canal (scutum) extending laterally along the external canal wall.
(14) (Exopalpiger) trianguliceps in 4-4 pairs of setae of the anal valve, shape of scutum, longer setae of alloscutum, more round peritreme, correlation between the length of peritreme longitudinal diameter and the length of longitudinal diameter of the anal ring, presence of auricles and shape of palps.
(15) Differences in linear sizes of scutum, gnathosoma and its appendages in male and female nymphs were determined that has made possible the identification of sex in hungry nymphs.
(16) Previous studies have indicated that the mantle margin of the gastropod mollusc Notoacmea scutum is sensitive to chemical, photic, and mechanical stimulation.
(17) He then named the company Aquascutum, from the Latin words aqua (water) and scutum (shield).
(18) The height of this bony plate was 1.5 to 3.0 mm and extended from the facial canal wall to the scutum.
(19) Defects of the anterior wall of the mastoid bowl, i.e., the posterior wall of the external auditory canal, were recognized in 105 ears in the first stage, 91 of which involved pathologic defects of the tympanic scutum caused by cholesteatoma.
(20) The transverse band of light scales on the anterior scutum is complete in Ae.