Applied Entomology and Zoology
Online ISSN : 1347-605X
Print ISSN : 0003-6862
ISSN-L : 0003-6862
Variations of Insect Haemolymph α-Mannosidase, β-Galactosidase, and β-N-Acetylglucosaminidase in the Silkworm, Bombyx mori (Lepidoptera : Bombycidae)
Shigeru KIMURA
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1983 年 18 巻 2 号 p. 144-148

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抄録
Activities of α-mannosidase, β-galactosidase and β-N-acetylglucosaminidase of silkworm haemolymph were examined for quantitative differences among four geographically different races and strains of Bombyx mori. Statistical analysis on a correlation of strains with the ratios of enzyme activities revealed that all strains were distinguishable by the index. α-Mannosidase levels were bimodally distributed in the four races, whereas β-galactosidase and β-N-acetyl-glucosaminidase showed a normal unimodal pattern. A difference in activity among the four races was found only for α-mannosidase which was significantly higher in the European race. No enzyme-deficient silkworm was found. Silkworms with extremely high and low activities were seen, suggesting that they were in a heterozygous state for glycosidases.
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© the Japanese Society of Applied Entomology and Zoology
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