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蠶兒의 部位別 神經球摘出이 絹絲 腺發育 및 絲質에 미치는 影響
李鍾哲,裵啓宣,崔雲浹,孫興大 東亞大學校 1977 東亞論叢 Vol.14 No.-
家蠶을 5齡起蠶과 熟蠶때에 腹部 第 2,4,6 神經球를 摘出하여 絹絲線發育, 吐絲量, Fibroin 含量比, 營繭形態 및 ??體色의 變化에 대해 試驗하였던 바 그 結果는 다음과 같다. 1. 絹絲線의 發育은 腹部 第 4,6 神經球 摘出보다 腹部 第 2 神經球 摘出이 더 크다. 2. 各 神經球 摘出은 絹絲線의 屈曲現像을 보였다. 3. 吐絲量은 腹部 第 4,6 神經球 摘出보다 腹部 第 2 神經球 摘出이 적었다. 4. 絹絲線의 發育정도와 吐絲量은 같은 傾向을 보였다. 5. 繭絲의 Fibroin 含量比는 腹部 第 6 神經球 影響이 腹部 第 2,4 神經球보다 큰 것 같다. 6. 神經球 摘出의 경우 表面의 營繭形態는 薄皮營繭이었고 腹部 第 4 神經球 摘出의 裏面의 營繭形態는 대부분 ??體半露出繭을 나타내었다. 7. 腹部 第 2,4,6 神經球는 化?? 및 ??體色의 變化에 關與할 可能性이 예상되며 앞으로 硏究할 必要가 있다고 본다. 8. 腹部 第 6 神經球는 排糞機能에 影響을 미친다. This experiment was conducted to investigate the effects of Silkgland growth, Spinning quantity, Fibroin Component ratio, Cocooning shape and changing the pupa coloration by resecting abdominal 2nd, 4th and 6th ganglia at both the time of 5 instar awakened larva and matured larva in silkworm. The results were summarized as follows: 1. Silkland growth was showed that resecting abdominal 2nd ganglion was more effective than those of abdominal 4th and 6th ganglia. 2. The shape of silkland was appeared as serpentining by resecting ganglia. 3. Spinning quantity was revealed that resecting abdominal 2nd ganglion was less than those of abdominal 4th and 6th ganglia. 4. Silkland growth and spinning quantity were revealed the same tendency in degree of increase. 5. Fibroin Component ratio of brave was seemed that abdominal 6th ganglion was moe effective than abdominal 2nd and 4th ganglia. 6. In the case of resecting ganglia, flimsy cocoon was formed at upper parts of cocoon and half of pupa body was mostly observed staying outside of cocoon in the cocoon shape at lower part of abdominal 4th ganglia. 7. Abdominal 2nd, 4th and 6th ganglia were expected to have a close connection with pupation and changing the pupa coloration. 8. Furction of evacuation was seemed to be controlled by abdominal 6th ganglia.
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