(n.) The act of shedding, or casting off, an outer cuticular layer, as in the case of serpents, lobsters, etc.; a coming out; as, the ecdysis of the pupa from its shell; exuviation.
Example Sentences:
(1) At the culmination of each molt, the larval tobacco hornworm exhibits a pre-ecdysis behavior prior to shedding its old cuticle at ecdysis.
(2) The time course of hormonal peaks in decapitated females resembles that in starved females during the first post-ecdysial week, suggesting that some as yet unknown regulating mechanism of ECD production lies outside the head.
(3) mortality was high), while the nymphal instars showed an adverse effect on ecdysis and adults which emerged from the treated last nymphal instar were characterized by high mortality, abnormal behaviour and reduced fecundity and viability.
(4) Post-thoracic ligation of animals at ecdysis blocks nucleolar changes as well as the appearance of polyploid nuclei.
(5) The effects of the insect growth regulator diflubenzuron (DFB) were observed on the larval-larval and larval-pupal moulting cycles of Tenebrio molitor, after treatment at ecdysis.
(6) In the hemolymph of the silkworm, Bombyx mori, lectin with hemagglutinating activity against sheep red blood cells increases at larval-larval ecdysis and at spinning stage (Suzuki and Natori, 1983) and is induced by infection with cytoplasmic polyhedrosis virus.
(7) Mature 4th stage microbodies decrease in size before ecdysis to the 5th stage when they atrophy at the same time as the new 5th stage generation arises.
(8) The second factor accelerates ecdysis in nonregenerating animals and appears to be produced in the eyestalks.
(9) We have found that the ability to produce the larval-like ecdysis pattern is retained in the adult.
(10) Our results on regressing Y organs of parasitized crabs are compared with those on regressing ecdysial glands of insects.
(11) In both cases the analyses were carried out from the fourth larval ecdysis to the beginning of spinning.
(12) This induction of precocious ecdysis is always accompanied by an inhibiting effect on regeneration: tiny abnormal regenerates or none are obtained.
(13) The ecdysial glands (Y organs) of the crab Carcinus maenas regress in the presence of an external parasite, Sacculina carcini.
(14) After an amputation close to the pupal ecdysis, fragments are obtained, and these incomplete structures show that the restoration process has ceased.
(15) During the week prior to the terminal ecdysis, developing moths still enclosed within the pupal cuticle produced motor patterns similar to those recorded from adults during flight and shivering.
(16) The declining titer is known to influence the timing of ecdysis, and it was found that the median ecdysis time of females occurs 1 day before that of males even when males and females are synchronized with each other using a developmental marker on Day 14.
(17) After adult ecdysis, the epidermal cells continue to deposit endocuticle.
(18) Argentaffin materials (polyphenols) first appear in these same sites at the time of ecdysis and increase rapidly during the next 24 h. Lipid appears in the lumen of the distal parts of the pore canals (with a patchy distribution) shortly before ecdysis.
(19) An important decrease of the hormone titer is observed at ecdysis.
(20) The pair of epidermally derived Verson's glands on each segment of the tobacco hornworm, Manduca sexta, secretes at ecdysis proteinaceous products which coat the epicuticle.
Molt
Definition:
(n.) Alt. of Moult
() imp. of Melt.
(v. t.) Alt. of Moult
(v. t.) Alt. of Moult
Example Sentences:
(1) In Experiment 1 (summer), hens regained body weight more rapidly, returned to production faster, and had larger egg weights (Weeks 1 to 4) when fed the 16 or 13% CP molt diets than when fed the 10% CP molt diet.
(2) After molting, resulting nymphs (n = 74) were fed on susceptible mice.
(3) The MT-2, derived from an adult T-cell leukaemia (ATL) cell, the Molt-4F, a human T-cell line, and the Isk, an EB virus-transformed B-cell line, were found to have high-affinity receptors for somatostatin, a cyclic tetradecapeptide that inhibits the release of substances such as growth hormone, TSH, glucagon, insulin, secretin, gastrin and cholecystokinin.
(4) The demonstration of cAMP-dependent protein kinase and of VIP- and PHI-mediated protein phosphorylation in Molt 4b lymphoblasts provides evidence on a molecular level for neuropeptide modulation of human lymphocyte function.
(5) The ability of various gangliosides to inhibit the cytotoxic activity of natural killers (NK-cells) from Syrian hamsters towards human lymphoma MOLT-4 cells was studied.
(6) Measurements were made at the imaginal molt and on fed and crowded imagos at 10, 20 and 30 post-imaginal days.
(7) A comparison between primary cells and resulting cell lines showed that the cell lines established from patients with T-ALL (MOLT 12, 13, 14 and MOLT 16, 17) expressed similar phenotypes and isoenzyme patterns, but were different in a few specific aspects.
(8) At the culmination of each molt, the larval tobacco hornworm exhibits a pre-ecdysis behavior prior to shedding its old cuticle at ecdysis.
(9) 2'-Deoxycytidine (10 microM) also blocked dGTP accumulation in MOLT-4 cells.
(10) Cytotoxicity resulting from dUMP misincorporation was consistent with the enhanced toxicity of piritrexim which was observed when HL-60 cells or MOLT-4 cells were exposed concurrently to exogenous deoxyuridine.
(11) Molting occurred in almost all kinds of organs examined.
(12) Syncytium formation between HUT-78 cells persistently infected with human immunodeficiency virus type 1 (HIV-1) and uninfected CD4-bearing MOLT-4 or CEM cells results in a rapid destruction of the MOLT-4 or CEM cells.
(13) Furthermore these cells exhibited cytotoxic activity against several tumour cell lines including the syngeneic L1210, the TNF-insensitive P815 mastocytoma, the human MOLT-4 lymphoblastic leukaemia, as well as the murine TNF-sensitive L929 fibroblast cell line.
(14) Second instar larvae which survive the molt exhibit a marked reduction in growth and eventually die as small second instar larvae.
(15) These lines of evidence were in accord with previous accounts of the so-called "molt inhibiting hormone" (MIH) effect.
(16) The objective of this study was to determine the molting process of Dirofilaria immitis third-stage larvae (L-3) to fourth-stage larvae (L-4), as it occurred in vitro.
(17) Injections of ovine prolactin during the pause-inducing procedure significantly reduced the subsequent rate of loss of primary wing feathers, suggesting that in certain physiological states, PRL may function to suppress molting.
(18) 1-beta-D-Arabinofuranosyl-E-5-(2-bromovinyl)uracil (BV-araU) and E-5-(2-bromovinyl)uracil, a metabolite of BV-araU, did not affect either the anti-human immunodeficiency virus activity or the cytotoxicity of azidothymidine in MT-4 and MOLT-4 cells.
(19) After the L1 molt, energy metabolism in animals destined to become dauer larvae diverges from that of animals committed to growth.
(20) Thus, one may deduce that stopped larvae could have low levels of ecdysone, and perhaps these are the ultimate physiological cause of their arrested development before the critical larva-pupa molt.