Insights for future studies on embryonic diapause promoted by molecular analyses of diapause hormone and its action in Bombyx mori

2001 ◽  
pp. 145-153 ◽  
Author(s):  
O. Yamashita ◽  
K. Shiomi ◽  
Y. Ishida ◽  
N. Katagiri ◽  
T. Niimi
Keyword(s):  
Bombyx Mori ◽  
Embryonic Diapause ◽  
Molecular Analyses ◽  
Future Studies ◽  
Diapause Hormone

Induction of embryonic diapause and stimulation of ovary trehalase activity in the silkworm, Bombyx mori, by synthetic diapause hormone

1993 ◽  
Vol 39 (10) ◽  
pp. 889-895 ◽  
Author(s):  
Motoko Ikeda ◽  
Zhi-hui Su ◽  
Hiroyuki Saito ◽  
Kunio Imai ◽  
Yukihiro Sato ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Embryonic Diapause ◽  
Trehalase Activity ◽  
Diapause Hormone ◽  
Silkworm Bombyx Mori ◽  
Stimulation Of

Studies on the Mode of Action of the Diapause Hormone in the Silkworm, BOMBYX MORI L.,

1963 ◽  
Vol 40 (3) ◽  
pp. 517-530
Author(s):  
KINSAKU HASEGAWA
Keyword(s):  
Low Temperature ◽  
Juvenile Hormone ◽  
Bombyx Mori ◽  
Mode Of Action ◽  
Adult Emergence ◽  
Suboesophageal Ganglion ◽  
Bombyx Mori L ◽  
Diapause Hormone ◽  
The Brain ◽  
Silkworm Bombyx Mori

1. The action of the diapause hormone has been studied by injecting extracts of the heads of male moths or of the brain-suboesophageal ganglion complexes of pupae into pupae expected to produce non-diapause eggs. 2. The effect of the injection of hormone upon young oocytes is to make them develop into diapause eggs. Older oocytes, which have already acquired non-diapause characters, are not affected. 3. The hormone is almost completely inactivated when injected on the day of pupation. The hormone is most effective when injected into pupae 2-3 days old, at which stage the ovarioles have started to grow vigorously. It is ineffective 1-2 days before adult emergence, by which time all the oocytes have acquired non-diapause characters. 4. The hormone is inactivated in all pupae irrespective of whether they are destined to produce diapause eggs or non-diapause eggs. Inactivation of diapause hormone (in contrast to that of juvenile hormone) is partially relieved by exposure to low temperature or by simultaneous injection of indian ink. 5. The extracts prepared as in (1) above do not serve as a stimulant for the brain causing the suboesophageal ganglion to produce diapause hormone. The action of the extract faithfully reflects the function of the diapause hormone which originates in the suboesophageal ganglion.

Isolation of the diapause hormone from the silkworm, Bombyx mori

1973 ◽  
Vol 19 (6) ◽  
pp. 1221-1239 ◽  
Author(s):  
Minoru Isobe ◽  
Kinsaku Hasegawa ◽  
Toshio Goto
Keyword(s):  
Bombyx Mori ◽  
Diapause Hormone ◽  
Silkworm Bombyx Mori

G protein-coupled receptor for diapause hormone, an inducer of Bombyx embryonic diapause

2006 ◽  
Vol 344 (1) ◽  
pp. 386-393 ◽  
Author(s):  
Takashi Homma ◽  
Ken Watanabe ◽  
Shuichiro Tsurumaru ◽  
Hiroshi Kataoka ◽  
Kunio Imai ◽  
...  
Keyword(s):  
G Protein ◽  
Embryonic Diapause ◽  
G Protein Coupled Receptor ◽  
Diapause Hormone ◽  
G Protein Coupled

Diapause Hormone B: Its Selective Extraction and Isolation from the Silkworm,Bombyx mori

1976 ◽  
Vol 40 (6) ◽  
pp. 1189-1199 ◽  
Author(s):  
Minoru Isobe ◽  
Kinsaku Hasegawa ◽  
Ichiro Kubota ◽  
Toshio Goto
Keyword(s):  
Bombyx Mori ◽  
Selective Extraction ◽  
Diapause Hormone ◽  
Silkworm Bombyx Mori

Temperature-dependent activation of ERK/MAPK in yolk cells and its role in embryonic diapause termination in the silkworm Bombyx mori

2005 ◽  
Vol 51 (12) ◽  
pp. 1306-1312 ◽  
Author(s):  
Ken-ichi Iwata ◽  
Chiyomi Shindome ◽  
Yuki Kobayashi ◽  
Makio Takeda ◽  
Okitsugu Yamashita ◽  
...  
Keyword(s):  
Bombyx Mori ◽  
Embryonic Diapause ◽  
Temperature Dependent ◽  
Diapause Termination ◽  
Erk Mapk ◽  
Silkworm Bombyx Mori
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