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00.093.0.02.001. Banana bunchy top virus

Cite this publication as: ICTVdB Management (2006). 00.093.0.02.001. Banana bunchy top virus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA

Cite this site as: ICTVdB - The Universal Virus Database, version 4. http://www.ncbi.nlm.nih.gov/ICTVdb/ICTVdB/

Table of Contents

Isolate Description

Location: Fiji.

Host of Isolate and Habitat Details
Source of isolate: Musa ssp.

Natural host and symptoms
Musa ssp. — chlorosis, stunting, death.

Reference to Isolation Report
Magee (1953).

Classification

This is a description of a plant virus at the species level.

ICTVdB Virus Code: 00.093.0.01.002. Virus accession number: 93001002. Obsolete virus code: 79.0.P.1.001; superceded accession number: 790p1001.
NCBI Taxon Identifier NCBI Taxonomy ID: 12585.

Name, Synonyms and Lineage

Synonym(s): abaca bunchy top virus. ICTV approved acronym: BBTV. Virus is the type species. Virus is of the genus 00.093.0.02. Babuvirus in the family 00.093. Nanoviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped, round with icosahedral symmetry. The isometric capsid has a diameter of 18-20 nm. Capsids appear round. The capsomer arrangement is not obvious.

Electron microscopic preparation and references: Virus preparation contains few virions.

Nucleic Acid

The genome is segmented and consists of six segments of circular, single-stranded DNA, is fully sequenced. Complete sequence is 1300 nucleotides long. Sequence has the accession number

[L32166] Gb(84)n:BYTV1 Banana bunchy top virus (BBTV DNA I) V1 and C1-C3 genes, complete cds's. 8/94 1,106bp.
[L32167] Gb(84)n:BYTV2 Banana bunchy top virus (BBTV DNA II) V1, V2, C1 and C2 genes, complete cds's. 8/94 1,096bp.
[S56276] Em(40)_vi:S56276 Gb(84)_vi:S56276 orf V1 (component 1) banana bunchy top virus BBTV, Genomic, 1111 nt. 1/94 1,111bp.
[U02312] Em(40)_vi:BBU02312 Gb(84)_vi:U02312 Banana bunchy top virus component 2. 6/94 1,095bp
[L41574] Gb(89)n:Bytorfaa Banana bunchy top virus gene, complete cds. 6/95 1,075bp.
[L41575] Gb(89)n:Bytorfab Banana bunchy top virus gene, complete cds. 6/95 1,043bp.
[L41576] Gb(89)n:Byttataaa Banana bunchy top virus gene, TATA and polyA signals. 6/95 1,060bp.
[L41577] Gb(89)n:Bytorfac Banana bunchy top virus gene, complete cds. 6/95 1,089bp.
[L41578] Gb(89)n:Bytorfad Banana bunchy top virus gene, complete cds. 6/95 1,018bp.
[U12586] Em(43)_vi:Bb12586 Gb(89)_vi:Bbu12586 Banana bunchy top virus DNA I II ORF V1 and ORF C1 genes, complete cds. 2/95 1,111bp.
[U12587] Em(43)_vi:Bb12587 Gb(89)_vi:Bbu12587 Banana bunchy top virus DNA IV ORF V1 and ORF C1 genes, complete cds. 2/95 1,127bp.
[U18077] Em(43)_vi:Bb18077 Gb(89)_vi:Bbu18077 Banana bunchy top virus putative replicase and hypothetical 13.8 kDa protein, component 1 DNA
[U18078] Em(43)_vi:Bb18078 Gb(89)_vi:Bbu18078 Banana bunchy top virus unknown protein, component 3 DNA, complete cds. 12/94 1,057bp.
[U18079] Em(43)_vi:Bb18079 Gb(89)_vi:Bbu18079 Banana bunchy top virus unknown protein, component 4 DNA, complete cds. 12/94 1,017bp. Sequence is sequenced, complete sequence is about 1300 nucleotides long, is sequenced, complete sequence is 1171 nucleotides long. Reference to nucleotide sequence Dale et al. (1986).

GenBank records for nucleotide sequences; complete genome sequences.

Proteins

The viral genome encodes structural proteins. Virions consist of 1 structural protein(s).

Lipids

Lipids are not reported.

Antigenicity

In nucleic acid hybridization tests, its genome reacts distantly with that of abaca bunchy top virus. It was originally thought to be a luteovirus: infected plants sometimes contain dsRNA, but these may come from a contaminant virus.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms, Class Liliopsida (Monocotyledonae).

General Symptoms in Plants Symptoms chlorosis, stunting.

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is not transmitted by mechanical inoculation.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Pentalonia nigronervosa. Virus is transmitted in a persistent manner; probably retained when the vector moults; not transmitted congenitally to the progeny of the vector.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in few families. Susceptible host species are found in the Family Musaceae. The following species were susceptible to experimental virus infection: Musa, Musa sapientum (cv. Cavendish).

Host:
Experimentally infected hosts mainly show symptoms of chlorosis, stunting.

Diagnostic Hosts

Diagnostic host species and symptoms:

Musa sapientum cv. Cavendish — chlorosis, stunting.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Musa ssp.

Histopathology: Virus can be best detected in phloem.

Geographical Distribution

The virus spreads in Africa and Australasia and Pacific Islands. The virus occurs in Australia, Burundi, Egypt, Gabon, the Philippines, and Taiwan.

Ecology, Epidemiology and Control

Studies reported by Magee (1940 and 1953).

References

Dale, J.L. (1987). Adv. Virus Res. 33: 301.

Magee, C.J.P. (1940). J. Aust. Inst. Agric. Sci. 6: 109.

Magee, C.J.P. (1953). J. Proc. R. Soc. N.S.W. 87: 3.

The following generic references are cited in the most recent ICTV Report.

PubMed References.

VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 56 by J.L. Dale, 1986. Revised 1991.

Taxonomic Proposals and Changes

A taxonomic proposal has been submitted to the ICTV by the Plant Virus Subcommittee, Study Group for Caulimoviridae at the meeting in San Diego, March 1998 to include a new taxon (in the Genus Nanovirus). The proposal has been approved at the meeting of the Executive Committee in San Diego, 1998, the taxon has been designated as Species.



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DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia. ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses by Dr Cornelia Büchen-Osmond is written in DELTA. The virus descriptions in ICTVdB are coded by, or using data from experts in the field of virology or members ICTV. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations are automatically generated and formatted for display on the Web from the descriptions in DELTA-format. The description has been generated automatically from DELTA files. DELTA - DEscription Language for TAxonomy developed by Dr Mike Dallwitz, Toni Paine and Eric Zurcher, CSIRO Entomology, Canberra, Australia.

ICTVdB - The Universal Virus Database, developed for the International Committee on Taxonomy of Viruses (ICTV) by Dr Cornelia Büchen-Osmond, is written in DELTA. The virus descriptions in ICTVdB are coded by ICTV members and experts, or by the ICTVdB Management using data provided by the experts, the literature or the latest ICTV Report. The character list is the underlying code. All virus descriptions are based on the character list and natural language translations from the encoded descriptions are automatically generated and formatted for display on the Web.

Developer of the DELTA software: M. J. Dallwitz, T. Paine and E. Zurcher

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Last updated on 25 April 2006 by Cornelia Büchen-Osmond
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