منابع مشابه
A Viroid Resembling Hop Stunt Viroid in Infected Apple Trees with Apple Scar Skin Disease in the Northeast of Iran
Abstract Background and Aims: Apple scar skin disease (ASSD) is one of the destructive diseases of pome fruits which is caused by ASSVd. Case presentation: We report molecular detection of ASSVd in symptomatic apples cv. Red Delicious with simultaneous presence of a new variant of HSVd from Khorasan Razavi province. Conclusion: This is the first report on the association of HSVd with...
متن کاملComplete nucleotide sequence of a viroid isolated from Etrog citron, a new member of hop stunt viroid group
The c o m p l e t e n u c l e o t i d e s e q u e n c e of a viro i d i s o l a t e d from c i t r u s ( C i t r u s m e d i c a L. U S D C S 6 0 1 3 ) , d e s i g n a t e d as ci t r u s isolate of hop s t u n t v i r o i d ( H S V d t ) ( 1 ) , was e s t a b l i s h e d . T he sin g l e s t r a n d e d c i r c u l a r m o l e c u l e s of c i t r u s v i r o i d RNA c o n s i s t s of 3 02 n ...
متن کاملa viroid resembling hop stunt viroid in infected apple trees with apple scar skin disease in the northeast of iran
apple scar skin disease (assd) is one of the destructive diseases of pome fruits which is caused by assvd. we report molecular detection of assvd in symptomatic apples cv. red delicious with simultaneous presence of a new variant of hsvd from khorasan razavi province. this is the first report on the association of hsvd with assvd in apple trees showing merely symptoms of apple dapple on the fruit.
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 کاملHop stunt viroid: molecular cloning and nucleotide sequence of the complete cDNA copy.
The complete cDNA of hop stunt viroid (HSV) has been cloned by the method of Okayama and Berg (Mol.Cell.Biol.2,161-170. (1982] and the complete nucleotide sequence has been established. The covalently closed circular single-stranded HSV RNA consists of 297 nucleotides. The secondary structure predicted for HSV contains 67% of its residues base-paired. The native HSV can possess an extended rod-...
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ژورنال
عنوان ژورنال: Plant Disease
سال: 2004
ISSN: 0191-2917,1943-7692
DOI: 10.1094/pdis.2004.88.10.1162a