• Publications
  • Influence
Gene expression of steroidogenic enzymes in chicken embryonic gonads.
  • K. Shimada
  • Biology, Medicine
  • The Journal of experimental zoology
  • 1 August 1998
This paper reviews the molecular aspects of sex differentiation in birds and describes the sex-reversal effects of aromatase inhibitor on mRNA expression of steroidogenic enzymes. Although it isExpand
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TIMELESS: A link between fly's circadian and photoperiodic clocks?
Potential involvement of circadian clock genes in so far unknown mechanism of photoperiodic time measurement is an important question of insect life-cycle regulation science. Here we report about theExpand
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Photoperiodic Induction of Diapause Requires Regulated Transcription of timeless in the Larval Brain of Chymomyza costata
Photoperiodic signal stimulates induction of larval diapause in Chymomyza costata. Larvae of NPD strain (npd-mutants) do not respond to photoperiod. Our previous results indicated that the locus npdExpand
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Malfunction of circadian clock in the non-photoperiodic-diapause mutants of the drosophilid fly, Chymomyza costata.
The diel rhythmicity of adult eclosion was recorded in reciprocal F1 hybrids between the wild-type (Sapporo) and mutant (NPD) strains of Chymomyza costata and the functionality of central circadianExpand
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Cell cycle arrest as a hallmark of insect diapause: changes in gene transcription during diapause induction in the drosophilid fly, Chymomyza costata.
The division cycle of CNS cells was arrested in G0/G1 (86.6%) and G2 (12.8%) phases in diapausing larvae of Chymomyza costata. A two-step response was observed when the diapause was induced byExpand
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Induction and development of winter larval diapause in a drosophilid fly, Chymomyza costata.
Photoperiodic response during induction of larval hibernal diapause of Chymomyza costata was characterized and the course of diapause development was analyzed in the laboratory. C. costata becomesExpand
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Visualization of intracellular ice crystals formed in very rapidly frozen cells at −27 °C
Abstract Tumor cells of an ascites sarcoma of rat were primarily frozen very rapidly with the original host ascitic fluid at −27 °C by the spraying method. Frozen specimens were fractured andExpand
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Seasonal changes in glycogen and trehalose content in relation to winter survival of four temperate species of Drosophila
Abstract Trehalose was the major sugar found in adult flies of four temperate species of Drosophila (D. subauraria, D. triauraria, D. rufa and D. lutescens ) and its level rose in early winter andExpand
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