Brain and ring gland cyclic AMP and cyclic GMP levels during initiation and termination of pupal diapause in flesh flies

Gnagey, A.L.; Denlinger, David L.

doi:10.1016/0742-8413(83)90053-1

Cited by 3 publications

(1 citation statement)

References 18 publications

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“…Cyclic AMP levels are 6-fold higher in nondiapause-programmed S. crassipalpis pupal brains and ring glands than in diapausing pupae. Injection of cholera toxin induces an increase in cAMP in diapauseprogrammed pupae and averts diapause (Gnagey & Denlinger, 1983). Co-injecting cGMP with 20-hydroxyecdysone (20 HE) increases the efficacy of 20 HE termination of pupal diapause in the Bertha armyworm, Mamestra configurata, whereas cAMP blocks 20 HE termination of diapause (Bodnaryk, 1975).…”

Section: Introductionmentioning

confidence: 99%

Environmental regulation of the purine synthesis enzyme purH transcript during adult diapause in Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Yocum¹

2004

Eur. J. Entomol.

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Abstract.A 1962 bp cDNA clone of 5-aminoimidazole-4-carboxamide ribonucleotide formyltransferase/IMP cyclohydrolase (purH) was isolated from diapausing adults of Leptinotarsa decemlineata using RT-PCR and 3' and 5'-RACE. The probe generated from this clone hybridized to a transcript approximately 1960 bp in length on northern blots. The clone encodes for a deduced protein 594 amino acids in length with 73% identity, 83% similarity to purH from Drosophila melanogaster. Northern blot (total RNA) analysis determined that L. decemlineata purH (LdpurH) was downregulated in diapausing beetles stored at 10°C. Developmental studies revealed that LdpurH is expressed at nearly constant high levels in both nondiapausing and prediapause adults. LdpurH expression during the first 20 days of diapause is equivalent to that seen in nondiapausing beetles, after which expression decreases. Exposing 70 day old diapausing beetles to 20°C for 24 h induced an increase in expression of purH indicating that purH is regulated by temperature in diapausing/overwintering beetles.

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Section: Introductionmentioning

confidence: 99%

Environmental regulation of the purine synthesis enzyme purH transcript during adult diapause in Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Yocum¹

2004

Eur. J. Entomol.

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Prothoracic gland function in diapause and non-diapause Sarcophaga argyrostoma and Calliphora vicina

Richard

Saunders

1987

Journal of Insect Physiology

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Dual control of pupal diapause by cyclic nucleotides in the bertha armyworm, Mamestra configurata Wlk.

Bodnaryk

1987

Journal of Insect Physiology

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Brain and ring gland cyclic AMP and cyclic GMP levels during initiation and termination of pupal diapause in flesh flies

Cited by 3 publications

References 18 publications

Environmental regulation of the purine synthesis enzyme purH transcript during adult diapause in Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Environmental regulation of the purine synthesis enzyme purH transcript during adult diapause in Leptinotarsa decemlineata (Coleoptera: Chrysomelidae)

Prothoracic gland function in diapause and non-diapause Sarcophaga argyrostoma and Calliphora vicina

Dual control of pupal diapause by cyclic nucleotides in the bertha armyworm, Mamestra configurata Wlk.

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