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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2001, Vol. 2 Issue (3): 294-297    DOI: 10.1631/jzus.2001.0294
Science & Engineering     
EFFECTS OF JINLU, AN ANTI-JUVENILE HORMONE ON THE GROWTH, ULTRA-STRUCTURE OF THE CORPORA ALLATA AND PROTHORACIC GLAND OF SILKWORM, BOMBYX MORI L
MIAO Yun-gen, JIANG Li-jun, Bharathi D
Department of Sericulture & Apiculture, College of Animal science,Zhejiang University, Hangzhou 310029, China
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Abstract  The 4th instar larvae of the silkworm, Bombyx mori L, when treated with anti-juvenile hormone (Jinlu) had its larval period extended by 2 days and the total larval period shortened by about 4 days. The conversion ratio of tetramolters into trimolters was 100%. But anti-juvenile hormone administration to the 5th instar larvae lengthened the silkworm age by one day. When anti-juvenile hormone was administered, we could find many neurosecretory granules of the brain transferred to the cells of the corpora allata, but there was little endoplasmic reticulum. In the prothoracic gland, the micropile edge was clear and there were large nucleoli, mitochondria and endoplasmic reticulum. This study was carried out to show that anti-JH compound inhibits the secretion of Juvenile hormone in silkworm Bombyx mori L. The investigation revealed that the anti-juvenile hormone inhibited the secretion of corpora allata and initiated the activity of the prothoracic gland.

Key words： anti-juvenile hormone (anti-JH)      endocrine gland      corpora allata and prothoracic gland      silkworm      Bombyx mori L     
Received: 18 October 2000     
CLC:  S881.2  
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JIANG Li-jun
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Bharathi D
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MIAO Yun-gen, JIANG Li-jun, Bharathi D. EFFECTS OF JINLU, AN ANTI-JUVENILE HORMONE ON THE GROWTH, ULTRA-STRUCTURE OF THE CORPORA ALLATA AND PROTHORACIC GLAND OF SILKWORM, BOMBYX MORI L. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2001, 2(3): 294-297.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2001.0294     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2001/V2/I3/294

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