Comparison of Different Diagnostic Methods for Detection of Hop stunt viroid and Citrus exocortis viroid in Citrus
نویسندگان
چکیده
منابع مشابه
Host-directed processing of Citrus exocortis viroid.
Prolonged infection of tomato hybrid (Lycopersicon esculentum x Lycopersicon peruvianum) by Citrus exocortis viroid (CEVd) resulted in viroid-like enlarged structures, detected by gel electrophoresis. This population included two new enlarged variants or D-variants, D-87 and D-76, and three transient species or D-forms, D-38, D-40 and D-43. Sequence analyses exposed a locus near the terminal re...
متن کاملogenicity, viroid evolution, Citrus exocortis viroid, Potato spindle tuber viroid, Peach latent mosaic viroid, Chrysan- themum chlorotic mottle viroid
Viroids are autonomously replicating, small singlestranded circular RNA molecules that do not code for proteins and may cause disease in infected, susceptible plants. Viroids have the ability to induce both RNA-mediated transcriptional gene silencing (TGS) and posttranscriptional gene silencing (PTGS) in infected plants. Viroid PTGS has also been demonstrated in a wheat germ extract system. A p...
متن کاملNovel variants of citrus exocortis viroid from southern of Iran
Background and Aims: Citrus exocortis disease is naturally limited to citrus plants and causes a serious disease on sensitive rootstocks such as trifoliate orange. The aim of this study was to sample new variants of citrus exocortis viroid from Fars trees with yellowing and suberization symptoms and comparison with other isolates of this viroid. Materials and Methods: A number of symptomat...
متن کاملRegulation of pathogenicity in hop stunt viroid-related group II citrus viroids.
Nucleotide sequences were determined for two hop stunt viroid-related Group II citrus viroids characterized as either a cachexia disease non-pathogenic variant (CVd-IIa) or a pathogenic variant (CVd-IIb). Sequence identity between the two variants of 95.6% indicated a conserved genome with the principal region of nucleotide difference clustered in the variable (V) domain. Full-length viroid RT-...
متن کاملNew Hosts and Comparison of Biological and Molecular Characteristics of Fig, Mulberry, and Citrus Isolates of Hop Stunt Viroid in Iran
Abstract Background and Aims: Hop stunt viroid (HSVd, genus Hostuviroid, family Pospiviroidae) has a wide host range among trees and herbaceous plants. The objectives of this study were to compare biological and physical characteristics of three isolates of HSVd from mulberry, fig and citrus and search for other hosts of this viroid in Iran. Materials and Methods: Plant samples were col...
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ژورنال
عنوان ژورنال: International Organization of Citrus Virologists Conference Proceedings (1957-2010)
سال: 2011
ISSN: 0074-7203,2313-5123
DOI: 10.5070/c57zf5v3q6