What's the difference between ootheca and oothecae?
Ootheca
Definition:
(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.
Oothecae
Definition:
(pl. ) of Ootheca
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.