A prokaryotic mycoplasma-like organism infection in the scallop Argopecten irradians

来源 :Acta Oceanologica Sinica | 被引量 : 0次 | 上传用户:lhyhh123
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
Intracytoplasmic infection with a prokaryotic mycoplasma-like organism (MLO) were characterized in the scallop Argopecten irradians, and the first report of such infection in this scallop was represented. Ultrastructurally these microorganisms are usually pleomorphic and variable in morphology and size, and appear in several cell types such as small spherical body, rod-shaped bodies and longer filament-shaped body. They lack a cell wall. These observations revealed that these types of the prokaryote showed some characteristics of a mycoplasma-like organism (MLO). MLO reproduced in two ways: binary fission and budding. The results of isolation and purification showed that a large number of MLOs existed in the tissues of diseased scallops. The results of experimental infection revealed that the MLO is pathogenic to the scallop Argopecten irradians. Intracytoplasmic infection with a prokaryotic mycoplasma-like organism (MLO) were characterized in the scallop Argopecten irradians, and the first report of such infection in this scallop was represented. Ultrastructurally these microorganisms are usually pleomorphic and variable in morphology and size, and appear in several These lack of cell surface such as small spherical body, rod-shaped bodies. They were a cell wall. These observations were these types of the prokaryote showed some characteristics of a mycoplasma-like organism (MLO). MLO reproduced in The results of isolation and purification showed that a large number of MLOs existed in the tissues of diseased scallops. The results of experimental infection revealed that the MLO is pathogenic to the scallop Argopecten irradians.
其他文献
在当今“信息爆炸”的时代,复印机成了人们不可或缺的专用工具。人们在几秒钟的时间内,就能完成一份文件的复制,从而摆脱了繁重的抄写工作,并由此促进了信息的传播。然而,人
水产科技档案是从事水产科研的凭证和依据,科学、完整、规范的档案管理,可以让水产科技人员了解历史,启发思路,提高科研工作的效率。笔者从事水产科研档案管理多年,现将管理
目的:为了建立人膀胱癌耐阿霉素细胞系并研究它们的生物学特性及药物耐受性的机理。方法:采用人膀胱癌细胞系EJ,经递增阿霉素剂量的方法,历时1年,建立一株耐药亚株EJ/DOR,对其生物学
细胞角蛋白 2 0 (cytokeratins 2 0 ,CK2 0 )是细胞角蛋白大家族的一种 ,近年来研究发现CK2 0与膀胱肿瘤的发生、发展、侵袭、转移、诊断及预后判断等有关 ,用于膀胱肿瘤的早
笔者通过对新的养殖模式,即第1茬养日本对虾,第2茬套养斑节对虾,并在虾池中套养罗非鱼进行了试验,收到了较好的效果,养殖效益明显提高。现将笔者的经验介绍如下:1池塘条件 T
河蟹育苗经各地几代人数十年的研究发展,各种“高深技术”日臻成熟并滥用:提前促熟、高温育苗、滥用抗生素、精饵投喂等手段花样翻新,不一而足。而目前河蟹育苗和养殖阶段分
解不等式可分为解显性式不等式和隐性式不等式.显性式不等式形式单一、解法固定.隐性式不等式在形式上通常没有给定,但需要计算取值范围,它的求解包含建立不等式、解不等式两
在我国民间流传着许多关于天气预报方面的谚语,这些谚语是劳动人民经过长期的观察而总结出来的,其中蕴含着丰富的科学知识。 There are many proverbs about weather foreca
“换元”是解方程的一个重要方法,常使不易解的方程经换元后变得易解用换元法解分式方程大体可分为以下四种类型一、倒数换元“义务”教材初中代数第三册P45例2介绍了倒数型