scholarly journals Effects of RH‐5992 on ecdysteroidogenesis of the prothoracic glands during the fourth larval instar of the silkworm,Bombyx mori

2008 ◽  
Vol 68 (4) ◽  
pp. 197-205 ◽  
Author(s):  
Shi‐Hong Gu ◽  
Ju‐Ling Lin ◽  
Pei‐Ling Lin ◽  
Rong Kou ◽  
Guy Smagghe
Keyword(s):  
Bombyx Mori ◽  
Larval Instar ◽  
Prothoracic Glands ◽  
Fourth Larval Instar ◽  
Silkworm Bombyx Mori

Adenylate cyclase in prothoracic glands during the last larval instar of the silkworm, Bombyx mori

2001 ◽  
Vol 31 (6-7) ◽  
pp. 659-664 ◽  
Author(s):  
Chien-Hung Chen ◽  
Shi-Hong Gu ◽  
Yien-Shing Chow
Keyword(s):  
Adenylate Cyclase ◽  
Bombyx Mori ◽  
Larval Instar ◽  
Prothoracic Glands ◽  
Silkworm Bombyx Mori

Transcriptional regulation of the PTTH receptor in prothoracic glands of the silkworm, Bombyx mori

2012 ◽  
Vol 58 (1) ◽  
pp. 102-109 ◽  
Author(s):  
Shun-Chieh Young ◽  
Wei-Lan Yeh ◽  
Shi-Hong Gu
Keyword(s):  
Transcriptional Regulation ◽  
Bombyx Mori ◽  
Prothoracic Glands ◽  
Silkworm Bombyx Mori

7-Dehydrosterols in prothoracic glands of the silkworm,Bombyx mori

1986 ◽  
Vol 42 (9) ◽  
pp. 1034-1036 ◽  
Author(s):  
S. Sakurai ◽  
N. Yonemura ◽  
Y. Fujimoto ◽  
F. Hata ◽  
N. Ikekawa
Keyword(s):  
Bombyx Mori ◽  
Prothoracic Glands ◽  
Silkworm Bombyx Mori

Fluctuations in ecdysteroid titre and development during the early stage of the last larval instar of trimoulter strains of the silkworm, Bombyx mori

1992 ◽  
Vol 38 (8) ◽  
pp. 587-593 ◽  
Author(s):  
Shi-Hong Gu ◽  
Yoshimitsu Iwashita ◽  
Fei-Jann Lin ◽  
Yien-Shing Chow
Keyword(s):  
Bombyx Mori ◽  
Early Stage ◽  
Larval Instar ◽  
Silkworm Bombyx Mori

scholarly journals STUDIES ON THE POSTERIOR SILK GLAND OF THE SILKWORM, BOMBYX MORI

1968 ◽  
Vol 38 (3) ◽  
pp. 574-588 ◽  
Author(s):  
Yutaka Tashiro ◽  
Takashi Morimoto ◽  
Shiro Matsuura ◽  
Sunao Nagata
Keyword(s):  
Bombyx Mori ◽  
Early Stage ◽  
Larval Instar ◽  
Silk Gland ◽  
Exponential Increase ◽  
Wet Weight ◽  
Rough Er ◽  
Electron Microscopical ◽  
Silkworm Bombyx Mori ◽  
Posterior Silk Gland

Growth of the posterior silk gland and biosynthesis of fibroin during the fifth larval instar of the silkworm, Bombyx mori, have been studied. In accordance with the exponential increase in the wet weight of the gland, the amounts of DNA, RNA, protein, and lipids per animal increased rapidly in the early stage of the fifth instar (0–96 hr). Biosynthesis of fibroin, on the contrary, mainly proceeds in the later stage of the fifth instar (120–192 hr). Electron microscopical observations have shown that, in the very early stage (0–12 hr), a number of free ribosomes exist in the cytoplasm. Rough endoplasmic reticulum (ER) with closely spaced cisternae was also observed. Then rough ER starts to proliferate rapidly, and at the same time lamellar ER is rapidly or gradually transformed into vesicular or tubular forms. In the later stage of the fifth instar (120–192 hr), the cytoplasm is mostly filled with tubular or vesicular ER. Golgi vacuoles, free vacuoles (fibroin globules), and mitochondria are also observed. It is concluded that in the early stage of the fifth instar the cellular structures necessary for the biosynthesis of fibroin are rapidly formed, while in the later stage the biosynthesis of fibroin proceeds at a maximum rate and utilizes these structures.

Ca2+ as second messenger in PTTH-stimulated prothoracic glands of the silkworm, Bombyx mori

2002 ◽  
Vol 32 (12) ◽  
pp. 1625-1634 ◽  
Author(s):  
Heiner Birkenbeil ◽  
Skarlatos G Dedos
Keyword(s):  
Bombyx Mori ◽  
Second Messenger ◽  
Prothoracic Glands ◽  
Silkworm Bombyx Mori
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