(n.) An egg case, especially those of many kinds of mollusks, and of some insects, as the cockroach. Cf. Ooecium.
Example Sentences:
(1) Number of oothecae formed, oothecae hatched, and number of offspring produced in each ootheca increased with increasing sublethal concentrations of chlorpyrifos.
(2) These compounds were the three quantitatively important immunoreactive esters found in ovaries and newly laid oothecae.
(3) Oothecae obtained from females provided with an [15N]urate-amended diet contained at least four 15N-enriched amino acids, which supports the hypothesis that urates are utilized as a nitrogen resource in these insects.
(4) Cockroaches fed greater than or equal to 0.01% allopurinol diets aborted a significantly greater percentage of their oothecae than those fed the 0.001% allopurinol or control diets.
(5) Therefore, the enzyme participating in the quinone tanning of cockroach ootheca appears to be a typical o-diphenol oxidase and not a laccase as previously thought.
(6) The probable fate of 3,4-dihydroxybenzyl alcohol for the tanning of cockroach ootheca is discussed.
(7) The major hydrocarbon, cis, cis-6,9-heptacosadiene, of Periplaneta americana cuticles and oothecae solidifies in air by autoxidation.
(8) Eggs in Leucophaea maderae are present in an ootheca which remains in the broodsac until hatching of the larvae.
(9) Adult females maintained on dog food invested 34% of their dry mass and 26% of their nitrogen into an oothecae during their first gonadotrophic cycle.
(10) We describe the electron microscopy of a crystalline assembly of an alpha-helical coiled-coil protein extracted from the ootheca of the praying mantis.
(11) The oxidation of 3,4-dihydroxybenzyl alcohol, one of the sclerotizing precursors for the tanning of the ootheca of cockroach Periplaneta americana, is reported for the first time.
(12) Viable oothecae were incubated an average of 19.2 d. Nonviable oothecae were either dropped within 4 d or carried for a period similar to the incubation period of viable oothecae.
(13) Female cockroaches provided a choice of diets aborted a significantly greater percentage of their oothecae (98.6%) than those fed the untreated diet (1.7%).
(14) The phenoloxidase system responsible for the sclerotization of cockroach ootheca is found to be present as an inactive form in the left colleterial gland of Periplaneta americana.
(15) HPLC analysis showed that this increase in immunoreactivity resulted from the hydrolysis of six apolar compounds that cochromatographed with the ecdysteroid esters previously shown to be present in newly laid oothecae (A1, A2, A3, A4, A5, and A6; A. J. Slinger, L. N. Dinan, and R. E. Isaac (1986).
(16) In vitro assays demonstrated that cysteamine enhances JH release by incubated corpora allata (CA), and that this effect is more pronounced when using CA from 10-day-old females (period of ootheca transport), either connected to the corpora cardiaca (CC) or to the CC and to the brain.
(17) Females on the low-protein diet incorporated more [14C]hypoxanthine-derived material (primarily as [14C]urates) into their oothecae than they retained in their bodies.
(18) Female German cockroaches fed the chitin synthesis inhibitors before mating and after the ootheca had protruded from the abdomen were not affected.
(19) Females produced an average of 3.7 oothecae, 64.6% of which were viable.
(20) The period between oothecae hatch and the formation of subsequent oothecae increased with successive oothecae in all treatments.
Ruffle
Definition:
(v. t.) To make into a ruff; to draw or contract into puckers, plaits, or folds; to wrinkle.
(v. t.) To furnish with ruffles; as, to ruffle a shirt.
(v. t.) To oughen or disturb the surface of; to make uneven by agitation or commotion.
(v. t.) To erect in a ruff, as feathers.
(v. t.) To beat with the ruff or ruffle, as a drum.
(v. t.) To discompose; to agitate; to disturb.
(v. t.) To throw into disorder or confusion.
(v. t.) To throw together in a disorderly manner.
(v. i.) To grow rough, boisterous, or turbulent.
(v. i.) To become disordered; to play loosely; to flutter.
(v. i.) To be rough; to jar; to be in contention; hence, to put on airs; to swagger.
(v. t. & i.) That which is ruffled; specifically, a strip of lace, cambric, or other fine cloth, plaited or gathered on one edge or in the middle, and used as a trimming; a frill.
(v. t. & i.) A state of being ruffled or disturbed; disturbance; agitation; commotion; as, to put the mind in a ruffle.
(v. t. & i.) A low, vibrating beat of a drum, not so loud as a roll; -- called also ruff.
(v. t. & i.) The connected series of large egg capsules, or oothecae, of any one of several species of American marine gastropods of the genus Fulgur. See Ootheca.
Example Sentences:
(1) The ruffles of the sub-marginal cells showed different characteristics, being longer and not propagated successively as were the marginal ruffles.
(2) Maturing enamel overlaid by either ruffle-ended or smooth-ended maturation ameloblasts showed similar Ca and P concentrations.
(3) Injection of GTP gamma S inhibited ruffling and increased spreading, suggesting an increase in adhesion.
(4) This is a team who have found their feet after that winless group section, a side who have already seen off the much admired Croatia and who can ruffle the feathers of the hosts or the reigning world champions.
(5) Stimulation of membrane ruffling is one of the first events induced by addition of growth factors to quiescent cultures.
(6) Suddenly he would be picking up speed, scurrying past opponents and, in one instance, slipping the ball through Laurent Koscielny’s legs for a nutmeg that was so exquisitely executed he might have been tempted to ruffle his opponent’s hair.
(7) In the SEM three corresponding types were identified, a relatively smooth spherical type, a highly ruffled type and a fairly smooth flattened type.
(8) Other designs included short ruffle cocktail dresses with velvet parkas slung over the shoulder; blazers made of stringed pearly pink; and gold beading and a lace catsuit.
(9) The Glasman "project" will undoubtedly ruffle feathers inside and outside Labour.
(10) In the active phase of root resorption, the resorption organ contained many odontoclasts with a well-developed ruffled border and a reduced clear zone, cementoblasts, fibroblasts, macrophages, neutrophils, and many blood vessels.
(11) The cells were oval or round, most of them with a rough surface due to presence of microvilli, ruffles, ridges, and blebs of various numbers and shapes.
(12) The osteoclasts secrete a large amount of protons by the action of H(+)-pump on the ruffled border into the sealed resorption cavity, resulting in the acidified microenvironment under which condition the bone matrix is dissolved.
(13) Ruffles were only rarely present in the continuous presence of NGF and were absent after NGF withdrawal.
(14) The presence of wide and short ruffles of epithelial cells covered with mucus is typical of the secretory phase of the cycle.
(15) Six of the orally infected P. maniculatus developed clinical signs including ruffled hair coat, inappetence, reluctance to move, and lameness in the rear legs.
(16) The increases in actin cables were associated with a lack of ruffled edges that are indicative of motile cells.
(17) Osteoclasts are multinucleated giant cells showing specialized membrane structures, clear zones and ruffled borders, which are responsible for the process of bone resorption.
(18) ruffled membrane movement, phagocytosis of some particles, glucose oxidation through the hexose monophosphate shunt and an increase in the activity of a membrane enzyme, adenylate cyclase.
(19) The presence of membrane ruffles at the cell border and of numerous thick bundles of actin crossing the cell body, suggests that the factor promotes cell spreading; this probably interferes with cytokinesis, ultimately leading to the formation of very large flattened multinucleated cells.
(20) They gradually displayed active membrane pseudopodia, thorn-like processes and petal-like ruffles after 2 h to 4 h of cultivation.