Changes of diapause and cold hardiness in the Shonai ecotype larvae of the rice stem borer, Chilo suppressalis Walker (Lepidoptera: Pyralidae) during overwintering.

• Goto Michiyo

  Department of Bioprocess Engineering, Faculty of Agriculture, Yamagata University

• Li Yi-Ping

  Department of Bioprocess Engineering, Faculty of Agriculture, Yamagata University

• Honma Takashi

  Department of Bioprocess Engineering, Faculty of Agriculture, Yamagata University

Abstract

Larvae of the Shonai ecotype of the rice stem borer, Chilo suppressalis, were in diapause until October when the ambient temperature was relatively high and most of the larvae terminated diapause in November before winter. The cold hardiness of field-collected larvae was low at the diapause stage, but relatively high at the post-diapause stage. Glycerol was scarcely detected at the diapause stage, but its content increased at the post-diapause stage. Conversion between glycogen and glycerol was found in diapausing larvae during temperature acclimation (0–30°C), but a time lag between glycogen loss and glycerol increase was detected under field conditions. The results obtained for the Shonai ecotype are compared with those of the other main ecotype of this species, the Saigoku ecotype.

Journal

• Applied Entomology and Zoology

  Applied Entomology and Zoology 36 (3), 323-328, 2001

  JAPANESE SOCIETY OF APPLIED ENTOMOLOGY AND ZOOLOGY

Keywords

• <i>Chilo suppressalis</i>
• Shonai ecotype
• glycerol
• diapause
• cold hardiness

Details

• CRID: 1390001206242376832
• NII Article ID: 110001103716
• NII Book ID: AA00543238
• DOI: 10.1303/aez.2001.323
• ISSN: 1347605X
• ISSN: 00036862
• NDL BIB ID: 5901743
• Web Site: http://id.ndl.go.jp/bib/5901743
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I5901743
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed