Studies on regulatory mechanism of spinning bahavior in the silkworms.

家蚕纺纱行为调控机制研究

• 批准号: 07456034
• 负责人: KIGUCHI Kenji
• 金额: $ 4.99万
• 依托单位: Shinshu University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07456034/
• 关键词: silkworm; Bombys mori; Antheraea yamamai; Agrius convolvuli; spinning behavior; cocoon shape; 3D-computer graphics; molting hormorne

To clarify regulation mechanism of spinning and cocoon formaiton behavior, behavioral characteristics of the silkworms (Bombyx mori and Antheraea yamamai) were analized by 3D-computer graphics. 'Relationships between hemolymph molting hormone level and spinning behavior were also investigated.1. Spinning process was recorded by two video cameras. Based on the three dimentional data, serial changes of larval body shape, spinning area, spinning speed and frequency of streching behavior were analized. The results obtained were as follows ; (1) the size of spinning region reduces quickly during the constraction of base and frame for cocooning, and then slowly converge it to the final cocoon size, (2) serial shape changes of larval body can be represented by an appropriate bivariate autoregressive model, (3) streching behavior is one of responsible factors for the appearance of constricted parts in the center of a peanut-shape cocoon.2. Cocoon shape can be changed experimentally by the mech … More anical inhibition of segmental movement by attaching a piece of medical tape ; a larva taped on the 5th larval segment made a round cocoon, while the one taped on the posterior segment (7-10th segment) spun a longer cocoon. The 3DCG analysis showed that the taping treatment affects the bending angle and the fixation of the posterior half of the body. It was also found that spinning speed shows down significantly after the taping treatment. Moreover, taping treatment prolonged spinning period, and consequently delayd pupation. The hemolymph ecdysteroid level was significantly lower than the control, suggesting that the taping affects secretory activity in the brain-corpora allata-prothoracic gland axis.3. The sweet potato hornworm, Agrius convolvuli, make a pupal room in the soil at the end of the last instar. Characteristics of the behavior was also studied by using an infrared camera-Video recorder system, and a developmental time-table was established for the last larval instar to compare with the spinning behavior of the silkworms. Less

为阐明家蚕吐丝结茧行为的调控机理，采用三维计算机图形技术对家蚕和天蚕的吐丝结茧行为特征进行了分析。并探讨了血淋巴蜕皮激素水平与吐丝行为的关系.纺丝过程由两台摄像机记录。根据三维数据，分析了幼虫体型、吐丝面积、吐丝速度和伸展行为频率的系列变化。获得的结果如下：（1）吐丝区尺寸在结茧底座和框架的建造过程中迅速缩小，然后缓慢收敛到最终茧径;（2）幼虫体的连续形状变化可以用适当的双变量自回归模型来表示，（3）伸展行为是花生形茧中心出现收缩部分的原因之一.机甲可以通过实验改变茧形 ...更多信息 用医用胶带粘在幼虫第5节上的幼虫结圆茧，而粘在后节（第7- 10节）上的幼虫结长茧。3DCG分析表明，贴扎治疗影响了后半身的弯曲角度和固定。还发现，在缠带处理后，纺丝速度显着下降。此外，缠丝处理延长了吐丝期，从而延缓了化蛹。血淋巴蜕皮激素水平显著低于对照组，表明针刺影响了脑-咽侧体-前胸腺轴的分泌活动.甘薯天蛾（Agrius convolvuli）在最后一个龄期结束时在土壤中形成蛹室。用红外摄像-录像系统研究了其行为特征，并建立了末龄幼虫发育时间表，与吐丝行为进行了比较。少

项目成果

Miura,M.: "Analysis of the construction process of cocoon shape by Bombyx mori" J.Sericult.Sci.Jpn.66. 23-30 (1997)

Miura,M.：“家蚕茧形构建过程分析”J.Sericult.Sci.Jpn.66。

Miura,M.: "Analysis of the silkworm's shape distribution and serial shpe changes in the course of spinning" J.Sericult.Sci.Jpn.67. 51-56 (1998)

Miura,M.：“蚕的形状分布和纺纱过程中连续形状变化的分析”J.Sericult.Sci.Jpn.67。

霜田政美: "エビガラスズメとカイコの共用人工飼料の作出" 日本蚕糸学雑誌. 65. 21-30 (1996)

Masami Shimoda：“虾麻雀和蚕的常见人工饲料的研制”日本血清学杂志 65. 21-30 (1996)。

清澤真琴: "テ-ピングした家蚕幼虫の吐糸行動の3次元画像解析" 日本蚕糸学会中部支部講演集. 52. 12 (1996)

Makoto Kiyosawa：“粘胶家蚕幼虫吐丝行为的三维图像分析”日本蚕业学会中部分会论文集 52. 12 (1996)。

三浦幹彦: "度数データを利用した繭糸解じょ糸長の解析" 日本蚕糸学雑誌. 65. 137-140 (1996)

Mikihiko Miura：“使用频率数据分析解开的茧丝长度”日本血清学杂志 65. 137-140 (1996)。