Oosorption in the stink bug, Plautia crossota stali: induction and vitellogenin dynamics

Kotaki, Toyomi

doi:10.1016/s0022-1910(02)00254-8

Cited by 43 publications

(45 citation statements)

References 19 publications

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“…These differences with regard to the mating status of N. viridula were not observed in Plautia stali Scott, where protein concentration did not vary between virgin and mated females (Kotaki 2003). The greater relative abundance of vitellogenins in hemolymph of mated female after the irst oviposition indicates a greater activity of protein synthesis in these females since vitellogenins uptake from hemolymph into the oocyte occurred continuously, considering the cyclical maturation of new oocytes.…”

Section: Discussionmentioning

confidence: 76%

“…However, the ovarian changes that occur during resorption and the regulation mechanism for these changes are still unknown. Besides the fact that oocyte resorption is associated with nutrient recycling provided by the degradation of the vitellogenins and vitellins of the vitellum for later release of peptides and amino acids in the hemolymph , it is thought that this process has an important role in inhibiting egg production before mating (Kotaki 2003, Horton et al 2005.…”

Section: Discussionmentioning

confidence: 99%

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Ovary Development and Maturation in Nezara viridula (L.) (Hemiptera: Pentatomidae)

Fortes¹,

Salvador²,

Cônsoli³

2011

Neotrop. entomol.

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Ovary development and maturation of Nezara viridula (L.) were evaluated by examining ovariole morphology and the alterations in the biochemical (protein synthesis related to reproduction) composition of the hemolymph. Quantitative and qualitative protein analyses were performed and ovary structural alterations for the pre-reproductive and reproductive stages were recorded. Total concentration of proteins in female hemolymph gradually increased until the end of the pre-mating stage, remaining unaltered thereafter. Proteins linked to reproduction (vitellogenins) appeared in the hemolymph 10 days after adult emergence and indicated the end of the pre-mating stage. After mating, total protein concentration in the hemolymph was lower compared to virgin females; vitellogenin levels were similar during most of the observation period. Oocyte development and maturation were gradual and age dependent. Ten-day-old females had chorionated oocytes ready for fertilization. Mating did not stimulate oocyte development in N. viridula, but the lack of mating activity appeared to have stimulated oocyte resorption in 17-day-old females.

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Section: Discussionmentioning

confidence: 76%

Section: Discussionmentioning

confidence: 99%

Ovary Development and Maturation in Nezara viridula (L.) (Hemiptera: Pentatomidae)

Fortes¹,

Salvador²,

Cônsoli³

2011

Neotrop. entomol.

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“…Current knowledge is supported by work on Blattodea, Diptera and Heteroptera (Bell, 1971;Uchida et al, 2001Uchida et al, , 2004Kotaki, 2003). In Triatominae, atresia has received little attention and there are few studies confined to R. prolixus (Wigglesworth, 1936;Huebner and Anderson, 1972).…”

Section: Discussionmentioning

confidence: 99%

“…Thus, an early activation of cathepsin-like peptidases presumably enhances oosorption (Uchida et al, 2001). In the stink bug Plautia crossota stali, results suggested that once oosorption begins, stored vitellin is degraded and released into the hemolymph as either, small peptides or aminoacids (Kotaki, 2003). Although the enzymatic breakdown of yolk protein occurs throughout embryogenesis (Fialho et al, 2002;Yamahama et al, 2005;Oliveira et al, 2008), some peptidases could activate early during atresia favoring nutrient recycling.…”

Section: Introductionmentioning

confidence: 99%

Biochemical changes in the transition from vitellogenesis to follicular atresia in the hematophagous Dipetalogaster maxima (Hemiptera: Reduviidae)

Aguirre

Fruttero

Leyria

et al. 2011

Insect Biochemistry and Molecular Biology

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“…18) P. stali symbionts were purified from adult insects as described previously. 17) Briefly, the adult insects were anesthetized on ice and their abdomens were dissected under a binocular.…”

Section: Methodsmentioning

confidence: 99%

Construction of an Expressible BAC Library of the Unculturable Insect Microorganism, Stink Bug <i>Plautia stali</i> Symbiont, for the Search of Biologically Active and Useful Symbiont Products

Kobayashi

Fujii-Muramatsu

Noda

et al. 2014

Biological & Pharmaceutical Bulletin

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While gene products and metabolites of insect symbiotic bacteria may act as useful resources for insectmicrobe studies and medicinal use, it is usually difficult to obtain the insect symbionts to some extent in quantity because most of them are unculturable. In this study, the possibility of using bacterial artificial chromosome (BAC) libraries as a heterologous gene expression tool for the discovery of novel symbiont metabolites was evaluated. A BAC library was constructed from the symbiont purified from the posterior midgut cecum of the stink bug Plautia stali. The BAC library, which consisted of 513 clones with an average insert size of 41 kb, represented greater than five-fold coverage of the genome. The ability of the BAC clones to express plural genes from large-sized insert DNA in Escherichia coli was examined by the growth of BACtransformed leu operon-deficient DH10B cells on M9 minimal medium supplemented with glucose. Two BAC clones complemented leucine deficiency in DH10B cells; the clones contained the leu operon of the symbiont chromosome. The P. stali symbiont genes introduced into the BAC vector are functional in E. coli, and these genes are expressed in an operon unit. BAC libraries can be used to generate gene product-and metabolitelibraries, facilitating to characterize potential metabolites of the P. stali symbiont.

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Oosorption in the stink bug, Plautia crossota stali: induction and vitellogenin dynamics

Cited by 43 publications

References 19 publications

Ovary Development and Maturation in Nezara viridula (L.) (Hemiptera: Pentatomidae)

Ovary Development and Maturation in Nezara viridula (L.) (Hemiptera: Pentatomidae)

Biochemical changes in the transition from vitellogenesis to follicular atresia in the hematophagous Dipetalogaster maxima (Hemiptera: Reduviidae)

Construction of an Expressible BAC Library of the Unculturable Insect Microorganism, Stink Bug <i>Plautia stali</i> Symbiont, for the Search of Biologically Active and Useful Symbiont Products

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