Formes d'inclusions osmiophiles dans les cellules de Ceratocystis ulmi

Author:

Chamberland Hélène,Ouellette G. B.

Abstract

Osmiophilic inclusions were frequently observed in cells of Ceratocystis ulmi (Buism.) C. Moreau in its hosts and in culture. These inclusions vary in shape, size, or their degree of compactness and are composed of fibrillar material and dense granules that are generally 150 Å in diameter. The inclusions are present in vacuolar areas which often appear to be completely or partially devoid of a membrane. Vacuolar areas may also contain aggregates of a similar texture, which often appear to have connections with nearby cytoplasm. Inclusions and (or) aggregates are often adjoining layers of membranes next to or extending within the vacuole. After thymidine labeling, radioautographic grains were observed over these bodies, thus suggesting the presence of DNA. The possible origin of these inclusions from transforming fungal cytoplasm and their importance in the infection process of Dutch elm disease are discussed. A mimeographed English version of the paper is available from the junior author.

Publisher

Canadian Science Publishing

Subject

Plant Science

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3