Juvenile hormone and the ultrastructural properties of the fat body of the adult Colorado beetle, Leptinotarsa decemlineata say

Loof, Arnold De; Lagasse, A.

doi:10.1007/bf00335785

Cited by 61 publications

(21 citation statements)

References 14 publications

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“…The cellular margin shows some slight projections or introflexions and rare pinocytotic pits. Similar general ultrastructural organization is visible in the cytoplasm of the fat body of adult female insects in the vitellogenic phase (De Loof & Lagasse, 1970;Thomsen & Thomsen, 1974;Lauverjat, 1977;Behan & Hagedorn, 1978;Couble et al, 1979;Stoppie et al, 1981), and of subepidermal fat cells of reproducing females (with oocytes in secondary vitellogenesis) of the amphipod Orchestia gammarellus (Zerbib & Meusy, 1981;Meusy et al, 1983). Since in these females the fat body cells or subepidermal fat cells synthesize vitellogenin, it is reasonable to assume that also the fat cells of parthenogenetic females of Daphnia are capable of vitellogenin synthesis.…”

Section: Parthenogenetic Reproducing Femalessupporting

confidence: 53%

Considerations on some cytological and ultrastructural observations on fat cells ofDaphnia(Crustacea, Cladocera)

Zaffagnini

Zeni

1986

Bollettino di zoologia

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The fat cells of females of Daphnia obtusa have a well developed rough endoplasmic reticulum, free ribosomes and small Golgi complexes. When the ovaries contain growing parthenogenetic oocytes, the fat cells show few scattered glycogen granules, whereas they show abundant glycogen when the ovaries contain one vitellogenic amphigonic oocyte. The latter case could be explained by the fact that the fat cells synthesize little vitellogenin since the yolk of amphigonic oocytes is mostly endogenous.

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Section: Parthenogenetic Reproducing Femalessupporting

confidence: 53%

Considerations on some cytological and ultrastructural observations on fat cells ofDaphnia(Crustacea, Cladocera)

Zaffagnini

Zeni

1986

Bollettino di zoologia

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“…A methodological explanation for the absence of a clear role of foxo is that only the head and frontal thorax of the beetle was used for the expression analysis. This part does not encompass all parts of the fat body (de Loof & Lagasse 1970), where foxo expression has been found to be high (Sim & Denlinger 2013). Thus it is possible that my results do not represent the full scale of foxo expression.…”

Section: Ontogenic Patterns In Expression Of Diapause Related Genes Smentioning

confidence: 92%

“…Two inherent parts of pre-diapause development in L. decemlineata are the retardation of ovarian maturation and burrowing into the soil (de Loof & Lagasse 1970, de Kort 1990. Pre-diapause development is accompanied by decreased Juvenile Hormone III (JH) titers, which has been suggested to be an important effector of diapause (de Kort 1990, Gilbert 2012.…”

Section: Life-history Adaptation Has Probably Not Proceeded Through Cmentioning

confidence: 99%

Population dependent effects of photoperiod on diapause related physiological traits in an invasive beetle (Leptinotarsa decemlineata)

Lehmann

Lyytinen

Sinisalo

et al. 2012

Journal of Insect Physiology

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“…1-3). During diapause it is present in the fat body as well [ 15,161. The amino acid composition reveals a relatively high tyrosine/phenylalanine content (Table l), although the values are not as high as in storage proteins from Diptera [6,7].…”

Section: Discussionmentioning

confidence: 99%

Storage proteins are present in the hemolymph from larvae and adults of the Colorado potato beetle

Koopmanschap

Lammers

Kort

1992

Arch Insect Biochem Physiol

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The protein composition of larval and adult hemolymph from the Colorado potato beetle, Leptinotarsa decemlineata, was investigated and some abundant, high molecular weight proteins were identified and characterized. Diapause protein 1, which occurs in the hemolymph of last instar larvae and short-day adults, appeared to be a storage protein. This protein dissociated into two bands due to the high pH used in nondenaturing gels. Its quaternary structure was established by chemical crosslinking. It appeared to be a hexamer. Diapause protein 1 is composed of approximately 82,000 subunits. The amino acid composition and N-terminal sequence of this protein has been determined. Specific antibodies against diapause protein 1 have been developed. Topical application of 1 microgram pyriproxyfen, a juvenile hormone analog, to last instar larvae and short-day adults suppressed the appearance of this protein in the hemolymph. Pyriproxyfen prematurely induced vitellogenin, when applied to last instar larvae. A larval specific protein was also identified in the hemolymph. Its temporary appearance in the hemolymph of last instar larvae, its subunit composition (M(r) approximately 82,000) and its suppression by pyriproxyfen suggests that this protein is a storage protein as well.

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Juvenile hormone and the ultrastructural properties of the fat body of the adult Colorado beetle, Leptinotarsa decemlineata say

Cited by 61 publications

References 14 publications

Considerations on some cytological and ultrastructural observations on fat cells ofDaphnia(Crustacea, Cladocera)

Considerations on some cytological and ultrastructural observations on fat cells ofDaphnia(Crustacea, Cladocera)

Population dependent effects of photoperiod on diapause related physiological traits in an invasive beetle (Leptinotarsa decemlineata)

Storage proteins are present in the hemolymph from larvae and adults of the Colorado potato beetle

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