Role of ecdysteroids in the dynamics of insect haemolymph sugar

• Oda, Yasunori

• Uejima, Masanori

• Iwami, Masafumi

• Sakurai, Sho

書誌事項

タイトル別名

• Role of Ecdysteroids in the Dynamics of Insect Haemolymph Sugar(Endocrinology) :

抄録

In Bombyx 5th instar larvae, haemolymph trehalose concentrations were maintained in a range of 8-14 mM during the feeding period and then decreased to approximately half the level concomitantly with the occurrence of a gut purge. The decrease occurred as well in larvae that were starved for 29 hr before the gut purge and those that were ligated around the neck. In contrast, ligation between the thorax and abdomen suppressed such a decrease in trehalose concentrations. These results indicated that thoracic factor(s) was involved in the decrease in the haemolymph trehalose concentration. Injections of ecdysteroids into the isolated abdomens of day 5 larvae resulted in a decrease in haemolymph trehalose concentrations. These findings suggest that an increase in the haemolymph ecdysteroid titer at the wondering stage brings about a decrease in the haemolymph trehalose concentrations. Ecdysteroids thus appear to play an important role in the changes in the carbohydrate metabolism at the larval-pupal transformation.

収録刊行物

• Zoological science

  Zoological science 17 (6), 785-789, 2000-08-01

  Zoological Society of Japan = 日本動物学会

キーワード

• Animal Science and Zoology

詳細情報

• CRID: 1050564285895926528
• NII論文ID: 110003371197
• NII書誌ID: AA10545874
• ISSN: 02891824
• ISSN: 02890003
• DOI: 10.2108/zsj.17.785
• NDL書誌ID: 5497727
• Web Site: http://hdl.handle.net/2297/28992
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5497727
• Web Site: http://www.bioone.org/doi/pdf/10.2108/zsj.17.785
• Web Site: http://dl.ndl.go.jp/info:ndljp/pid/10863272
• 本文言語コード: en
• 資料種別: journal article
• データソース種別:
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  • NDL
  • Crossref
  • NDL-Digital
  • CiNii Articles