Analytical study of control of gall of Cryptomeria and mechanisms of hypertrophy.

柳杉瘿的控制及肥大机制的分析研究。

• 批准号: 15580133
• 负责人: YAGUCHI Yukio
• 金额: $ 2.11万
• 依托单位: Tokyo University of Agriculture
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2003
• 资助国家: 日本
• 起止时间: 2003 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15580133/
• 关键词: Cryptomeria; Gall of Cryptomeria; Control; スギこぶ肥大速度; 叢生枝; アンケート調査

A survey on the occurrence of Cryptomeria gall disease was conducted. The length, height, and diameter of nine galls present on Cryptomeria measuring 1.2-12.2mm were recorded from May 2003 to November 2004 to determine the rate of gall development per month. Results indicated that gall development on Cryptomeria was 0.14-0.52mm/month.Gall present on the leaves and branches of six Cryptomeria tree was investigated. Galls were both present in the leaves and branches of Cryptomeria trees. It was noted that when the number of galls in the branches was numerous, the same observation was noted on the leaves. Sizes of the galls found on the branches range from 5〜20mm while 10mm was recorded on the leaves.It is recommended, that a large scale or nationwide survey on the gall disease of Cryptomeria should be undertaken to determine the extent of the disease. The disease is often left un-checked and visually seen as few without really understanding the current state of the disease.Ascospores are formed inside the galls. Hence, isolation of the ascospores and related bio-assay studies is necessary to study the biology of the causal organisms necessary for the establishment of pest control technology of this disease. Furthermore, elucidation of the mechanism of hypertrophy, concerning the separation of the phytophormone inside the gall is needed as reference for further related researches in the future.

对瘿隐蝇病的发生情况进行了调查。在2003年5月至2004年11月期间，我们记录了柳杉属的9个瘿的长度、高度和直径，大小为1.2-12.2mm，以确定每月瘿的发育速度。结果表明，柳杉瘿发育速度为0.14 ~ 0.52mm/月。研究了6种柳杉树叶片和树枝上的胆碱。柳杉的叶和枝上都有瘿瘤。人们注意到，当树枝上的虫瘿数量很多时，树叶上也有同样的观察结果。枝条上的虫瘿大小为5 ~ 20mm，叶片上的虫瘿大小为10mm。建议对柳杉瘿病进行大规模或全国性的调查，以确定该病的严重程度。在没有真正了解疾病现状的情况下，这种疾病往往没有得到检查，在视觉上被视为很少。子囊孢子在虫瘿内形成。因此，有必要进行子囊孢子的分离和相关的生物测定研究，以研究该病防治技术所必需的致病生物的生物学。此外，还需要进一步阐明肥大的机制，包括胆囊内植物激素的分离，为今后进一步的相关研究提供参考。