The plant pathogen Rhodococcus fascians colonizes the exterior and interior of the aerial parts of plants.

IF 2.2 3区 地球科学 Q2 GEOSCIENCES, MULTIDISCIPLINARY Episodes Pub Date : 2001-05-01 DOI:10.1094/MPMI.2001.14.5.599
K Cornelis, T Ritsema, J Nijsse, M Holsters, K Goethals, M Jaziri
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引用次数: 65

Abstract

Rhodococcus fascians is a plant-pathogenic bacterium that causes malformations on aerial plant parts, whereby leafy galls occur at axillary meristems. The colonization behavior on Nicotiana tabacum and Arabidopsis thaliana plants was examined. Independent of the infection methods, R. fascians extensively colonized the plant surface where the bacteria were surrounded by a slime layer. R. fascians caused the collapse of epidermal cells and penetrated intercellularly into the plant tissues. The onset of symptom development preceded the extensive colonization of the interior. The meristematic regions induced by pathogenic strain D188 were surrounded by bacteria. The nonpathogenic strain, D188-5, colonized the exterior of the plant equally well, but the linear plasmid (pFiD188) seemed to be involved in the penetration efficiency and colonization of tobacco tissues.

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植物病原体法氏红球菌(Rhodococcus fascians)在植物气生部分的外部和内部定殖。
法氏红球菌(Rhodococcus fascians)是一种植物病原菌,可导致植物气生部分畸形,在腋生分生组织上出现叶状虫瘿。我们研究了这种细菌在烟草和拟南芥植物上的定殖行为。与感染方法无关,R. fascians 在植物表面广泛定殖,细菌被粘液层包围。R. fascians 会导致表皮细胞崩溃,并在细胞间渗透到植物组织中。症状的出现先于内部的广泛定殖。病原菌菌株 D188 诱导的分生区被细菌包围。非致病性菌株 D188-5 在植株外部的定殖情况同样良好,但线性质粒(pFiD188)似乎参与了烟草组织的穿透效率和定殖。
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来源期刊
Episodes
Episodes 地学-地球科学综合
CiteScore
5.50
自引率
3.20%
发文量
182
期刊介绍: Episodes is the quarterly journal of the International Union of Geological Sciences, published in Seoul, Korea. In circulation since 1978, Episodes is an international and interdisciplinary open access and free, both to submit and download, publication journal that covers all geoscience disciplines, including economic geology, environmental geology, geochemistry, geoethics, geoheritage, geophysics, hydrogeology, mineralogy, paleontology, petroleum geology, petrology, sedimentology, stratigraphy, structural geology, remote sensing, planetary geology, and social science (metric and diversity in publications and citations in Earth Sciences). Episodes includes authoritative articles that reflect global research advances, evolving trends in geoscience disciplines and concise reports on the results of international meetings, conferences, and symposia. It is a high visibility journal, and is indexed in Science Citation Index (SCI), Science Citation Index Expanded (SCIE; Web of Science), and Journal Citation Reports (JCR)/Science Edition, along with many other databases such as SCOPUS. Submitted manuscripts are peer-reviewed, and a first decision is provided to authors approximately within 30 days after submission.
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