Studies on vitellogenesis in the American cockroach

Mills, Richard; Greenslade, Forrest C.; Couch, Ernest F.

doi:10.1016/0022-1910(66)90029-1

Cited by 57 publications

(14 citation statements)

References 31 publications

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“…2 4 ) as was previously illustrated by Mills et al (1966), Bell (1969), Weaver et al (1975), and Weaver and Pratt (1977). 2 4 ) as was previously illustrated by Mills et al (1966), Bell (1969), Weaver et al (1975), and Weaver and Pratt (1977).…”

Section: Discussionsupporting

confidence: 65%

“…The high variation in feeding among females was commented on by Mills et al (1966). Weaver and Pratt (1981) also discussed the high variation among studies of reproduction and its response to starvation and suggested that the state of reserves was a factor.…”

Section: Discussionmentioning

confidence: 99%

“…Michael (1971) studied some aspects of energy flow in P . Females have a 3-8 day cycle of oothecal production (Griffiths and Tauber 1942;Gier 1947;Mills et al 1966;Pratt 1967;Bell 1969;Weaver et al 1975;Maa and Bell 1977;Weaver and Pratt 1977). Females have a 3-8 day cycle of oothecal production (Griffiths and Tauber 1942;Gier 1947;Mills et al 1966;Pratt 1967;Bell 1969;Weaver et al 1975;Maa and Bell 1977;Weaver and Pratt 1977).…”

Section: Introductionmentioning

confidence: 99%

“…arnericana but there are surprisingly few studies of quantitative feeding for this insect. Most feeding occurs during the first few days after depositing an ootheca (Mills et al 1966;Bell 1969;Verrett and Mills 1973). Most feeding occurs during the first few days after depositing an ootheca (Mills et al 1966;Bell 1969;Verrett and Mills 1973).…”

Section: Introductionmentioning

confidence: 99%

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VARIATION AMONG INDIVIDUALS AND THE EFFECT OF TEMPERATURE ON FOOD CONSUMPTION AND REPRODUCTION IN THE COCKROACH, PERIPLANETA AMERICANA (ORTHOPTERA: BLATTIDAE)

Rollo

Gunderman

1984

Can Entomol

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Can. Ent. 116: 785-793 (1984) Long term daily feeding in individual adult males and females of Periplaneta americana (L.) was quantified using a standardized diet. There was considerable variation among days, probably related to digestive processes with a period greater than 1 day. Female feeding was correlated with the reproductive cycle, most feeding occurring during the first few days after depositing an ootheca. Females differed with respect to the length of their reproductive cycles, and the amount of food that was accumulated prior to producing an ootheca. Females with high feeding rates produced oothecae at a faster rate, but they were less efficient at converting food into oothecal biomass than females that ate more slowly. A decrease in temperature from 25°C to 20°C more than doubled the length of the reproductive cycle, but the amount of food accumulated during inter-ovipositional intervals and the size of the oothecae were not affected. ResumeL'activitC alimentaire journalibre a long terme d'individus miles et femelles de Periplaneta americana (L.) a Ct C quantifiCe en utilisant un rCgime standard. Une grande variation entre jours a Ct C observCe, probablement en relation avec les processus digestifs ayant une pkriodicitk plus grande qu'un jour. L'alimentation des femelles Ctait correlee au cycle reproducteur, la prise maximale Ctant enregistrke au cours des quelques jours suivant la dCposition d'une ovothbque. Les femelles se sont montrtes differentes quant B la longueur de leurs cycles reproducteurs et a la quantitC de nourriture prise avant la production d'une ovothbque. Les femelles montrant une prise de nourriture ClevCe ont produit des ovothbques plus frkquemment, mais elles Ctaient moins efficaces a convertir leur nourriture en biomass d'ovothbque que les femelles consommant plus lentement. Une baisse de tempCrature de 25" a 20°C a plus que doublC la duke du cycle reproducteur, mais la quantitC de nourriture accumulCe au cours des intervalles inter-pontes et la taille des ovothbques n'ont pas Ct C affectCes.

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Section: Discussionsupporting

confidence: 65%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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VARIATION AMONG INDIVIDUALS AND THE EFFECT OF TEMPERATURE ON FOOD CONSUMPTION AND REPRODUCTION IN THE COCKROACH, PERIPLANETA AMERICANA (ORTHOPTERA: BLATTIDAE)

Rollo

Gunderman

1984

Can Entomol

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“…Similar findings in S. gregaria (Hill 1962), Tenebrio molitor (Mordue 1965), and P. americana (Mills et al 1966) were interpreted to indicate that the mNSC stimulate ~rotein okration is -casual observations suggest that if the mNSC are not destroyed until 6 h after emergence, a pronounced increase in the haemolymph volume may take place. It should be noted that yolk deposition also occurs to a limited extent in these females (Gillott and Elliott 1976).…”

Section: Discussionsupporting

confidence: 55%

Changes in the protein concentration and volume of the haemolymph in relation to yolk deposition, ovariectomy, allatectomy, and cautery of the median neurosecretory cells in Melanoplus sanguinipes

Elliott¹,

Gillott²

1977

Can. J. Zool.

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The protein concentration and volume of the haemolymph may change with no apparent relation to one another in normal, ovariectomized, allatectomized, and median-neurosecretorycell-cauterized (mNSC-cauterized) females. Therefore, protein levels in the haemolymph are more meaningfully expressed in terms of the total protein content. In normal females, fluctuations in the haemolymph volume tend to parallel changes in the protein concentration during the first and subsequent gonotrophic periods. However, significantly less protein accumulates during the latter periods. The suggestion that these fluctuations partly reflect changes in the vitellogenic requirements of the oocytes is supported by the finding that both the volume and protein concentration increase significantly after ovariectomy.Allatectomy or mNSC cautery prevents the normal accumulation of protein in the haemolymph. In allatectomized females, the slight increase in protein concentration is accompanied by a decline in haemolymph volume. Cautery of the mNSC, provided it is performed within 3 h of emergence, results in a low protein concentration but has no effect on the haemolymph volume. The observations are discussed in terms of the corpora allata and mNSC control of haemolymph protein synthesis.

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Oocyte Growth and Vitellogenesis

Aizenshtadt¹

1988

Oocyte Growth and Maturation

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Studies on vitellogenesis in the American cockroach

Cited by 57 publications

References 31 publications

VARIATION AMONG INDIVIDUALS AND THE EFFECT OF TEMPERATURE ON FOOD CONSUMPTION AND REPRODUCTION IN THE COCKROACH, PERIPLANETA AMERICANA (ORTHOPTERA: BLATTIDAE)

VARIATION AMONG INDIVIDUALS AND THE EFFECT OF TEMPERATURE ON FOOD CONSUMPTION AND REPRODUCTION IN THE COCKROACH, PERIPLANETA AMERICANA (ORTHOPTERA: BLATTIDAE)

Changes in the protein concentration and volume of the haemolymph in relation to yolk deposition, ovariectomy, allatectomy, and cautery of the median neurosecretory cells in Melanoplus sanguinipes

Oocyte Growth and Vitellogenesis

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