What's the difference between scutellum and shield?
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.
Shield
Definition:
(n.) A broad piece of defensive armor, carried on the arm, -- formerly in general use in war, for the protection of the body. See Buckler.
(n.) Anything which protects or defends; defense; shelter; protection.
(n.) Figuratively, one who protects or defends.
(n.) In lichens, a Hardened cup or disk surrounded by a rim and containing the fructification, or asci.
(n.) The escutcheon or field on which are placed the bearings in coats of arms. Cf. Lozenge. See Illust. of Escutcheon.
(n.) A framework used to protect workmen in making an adit under ground, and capable of being pushed along as excavation progresses.
(n.) A spot resembling, or having the form of, a shield.
(n.) A coin, the old French crown, or ecu, having on one side the figure of a shield.
(n.) To cover with, or as with, a shield; to cover from danger; to defend; to protect from assault or injury.
(n.) To ward off; to keep off or out.
(n.) To avert, as a misfortune; hence, as a supplicatory exclamation, forbid!
Example Sentences:
(1) 11 patients with a postoperative classification of stage D had additional external beam radiation to the pelvic and paraaortic lymph nodes with shielding of the implanted prostatic region.
(2) An effective gonadal shield should reduce the gonadal dose to a level low enough to preserve spermatogenesis in most patients.
(3) Scott was born in North Shields, Tyne and Wear, the youngest of the three sons of Colonel Francis Percy Scott, who served in the Royal Engineers, and his wife, Elizabeth.
(4) Fred had to be substituted to shield him from the crowd’s disdain.
(5) Was the Dalkon Shield so harmful in the nulliparous woman?
(6) Physicians need to prescribe the lowest possible dose of hormones in these women and counsel them to shield their face from sunlight.
(7) Moulton said his colleagues were preparing to table an offer next week that will shield 50% of the council's staff from a pay cut.
(8) Adult males acclimated to an LD 14:10 photoperiod were distributed in five experimental groups: intact controls (NO), sham-pinealectomized (S), sham-pinealectomized with black plastic shielding of the pineal region, pinealectomized (PX), and pinealectomized with the operated region shielded.
(9) In order to evaluate long-term as well as short-term effects, blood loss was measured at postinsertion levels of 6, 12, and 18 months in 72 women wearing the Lippes loop, in 73 wearing the Dalkon shield, and in 82 with TCu 300.
(10) Using the outer 2 mm of the skin-fold, and shielding the rest of the hand with a lead plate, cutaneous blood flow rate could be monitored separately.
(11) Shielded marrow self renewal capacity, a measurement reflecting primitive hematopoietic stem cell function, remained depressed and did not recover with time.
(12) We believe the shield makes the patient more comfortable and decreases the likelihood of dislodgement of the adhesive.
(13) He lost contact with his father, a lorry driver, for several years, but says that his mother - aided by his uncle - made it her mission to shield him from the crime and disorder around them.
(14) The lead shield encloses only the testes, allowing its use with nearly any radiation field that does not include the testes.
(15) "Let us arm ourselves with the weapon of knowledge and let us shield ourselves with unity and togetherness," Malala said.
(16) I’m not satisfied until I collect everything' … EFL Cup Europa League International Champions Cup Community Shield Which competition was Ian Rush talking about when he said: 'This is why cup finals are so special, because anyone can beat anyone.
(17) Nemanja Matic, more normally such a man-mountain of a midfield shield, is diminished and was beaten too easily in the air by James Morrison for the home side’s second.
(18) The results indicate that collagen shields can slowly release cyclosporin A and increase the penetration time for the drug.
(19) Shields accepted that the Irish appeared more inclined to send up their grim fiscal situation than go out and riot.
(20) Some Coalition MPs raised concerns earlier this year that transparency could expose wealthy business owners to security risks, including kidnapping , and the government prepared legislation to shield private Australian companies.