The plant pathogen Rhodococcus fascians. History, disease symptomatology, host range, pathogenesis and plant–pathogen interaction,Annals of Applied Biology

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The plant pathogen Rhodococcus fascians. History, disease symptomatology, host range, pathogenesis and plant–pathogen interaction
Annals of Applied Biology ( IF 2.2 ) Pub Date : 2020-06-24 , DOI: 10.1111/aab.12600
Sabrine Dhaouadi ₁ , Mougou A. H ₁ , Ali Rhouma ₂

Affiliation

Since 1927, outbreaks of the leafy gall disease caused by Rhodococcus fascians on annual and perennial herbaceous plants have put the ornamental plant industry at risk. More recently, Pistachio Bushy top syndrome (PBTS), a serious disease emerging in the Western United States, has been declared as a natural disaster by the U.S. Department of Agriculture. Recent developments indicate that the taxonomic position of R. fascians should be re‐evaluated and circumscribed from other members of the genus. Due to the broad host range of this bacterium, economically important crops are in a vulnerable position especially with new members within the genus becoming able to interact synergistically with R. fascians to cause symptom development. The virulence strategies employed by R. fascians and the involvement of cytokinins (CKs) in its pathogenicity have been the subject of much controversy in the last years. Additionally, the detection of virulent strains of R. fascians from symptomatic tissues has been problematic for many researchers. This review focuses on plant–pathogen interaction in context with more recent findings on the association of CKs in virulence of R. fascians. Current knowledge on the worldwide distribution of the pathogen, a historical recap of its discovery and the economic impact of the disease caused by R. fascians are also described here.

中文翻译：

植物病原体Rhodococcus fascians。历史，疾病症状，寄主范围，发病机理和植物与病原体的相互作用

自1927年以来，由一年生和多年生草本植物引起的黑缘红球菌引起的叶胆病暴发使观赏植物产业处于危险之中。最近，美国农业部宣布开心果灌木丛顶综合征（PBTS）是在美国西部出现的一种严重疾病。最近的事态发展表明，应该重新评估法西斯人的分类学地位，并限制其属下的其他成员。由于这种细菌的寄主范围广泛，具有重要经济意义的农作物处于脆弱的地位，特别是该属中的新成员变得能够与法西斯菌协同相互作用。导致症状发展。近年来，法西斯人（R. fascians）使用的毒力策略和细胞分裂素（CKs）的致病性已成为许多争议的主题。另外，对于许多研究人员而言，从有症状的组织中检测法西斯菌的强毒株是有问题的。这篇综述着重于植物与病原体之间的相互作用，以及有关CK在法西斯菌毒性中的关联的最新发现。本文还介绍了有关病原体在全球范围内分布的最新知识，其发现的历史回顾以及法西斯人引起的疾病的经济影响。

更新日期：2020-06-24

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