A Viroid Resembling Hop Stunt Viroid in Infected Apple Trees with Apple Scar Skin Disease in the Northeast of Iran
نویسندگان
چکیده مقاله:
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 ASSVd in apple trees showing merely symptoms of apple dapple on the fruit.
منابع مشابه
a 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 کاملNucleotide sequence and secondary structure of apple scar skin viroid.
The complete nucleotide sequence of apple scar skin viroid(ASSV) has been established, and a probable secondary structure is proposed. A single-stranded circular ASSV RNA consists of 330 nucleotides and can assume the rodlike conformation with extensive base-pairing characteristic of all the known viroids. ASSV shows low sequence homologies with other viroids and lacks the central conserved reg...
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apple scar skin viroid (assvd) is one of the most destructive viroid diseases in pome fruits orchards which can cause significant economic losses. symptoms of this viroid including scaring, distortion and dappling were seen in some apple orchards in east-northern of iran. sampling was carried out from apple and pear orchards. the rna was extracted by silica capture method from leaves. assvd was...
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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...
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 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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عنوان ژورنال
دوره 9 شماره None
صفحات 25- 28
تاریخ انتشار 2015-02
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