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00.057.0.81.050. Marigold mottle virus

Cite this publication as: ICTVdB Management (2006). 00.057.0.81.050. Marigold mottle 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: India.

Host of Isolate and Habitat Details
Source of isolate: Tagetes erecta.

Natural host and symptoms
Tagetes erecta — severe leaf mottling, small malformed flowers, stunting and death.

Reference to Isolation Report
Naqvi et al. (1981).

Classification

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

ICTVdB Virus Code: 00.057.0.81.050. Virus accession number: 57081050. Obsolete virus code: 57.0.1.T.050; superceded accession number: 5701t050.

Name, Synonyms and Lineage

ICTV approved acronym: MaMoV. Virus is an ICTV approved species of the genus 00.057.0.01. Potyvirus in the family 00.057. Potyviridae.

Virion Properties

Morphology

Virions consist of a capsid. Virus capsid is not enveloped. Capsid/nucleocapsid is elongated with helical symmetry. The capsid is filamentous, flexuous with a clear modal length with a length of 675 nm. Axial canal is indistinct.

Physicochemical and Physical Properties

There are 1 sedimenting component(s) found in purified preparations. The sedimentation coefficient is 152 S20w. A260/A280 ratio is 1.28. The thermal inactivation point (TIP) is at 50°C. The longevity in vitro (LIV) is 6 days (at 20-25°C). Although the titer is dependent on the host, the decimal exponent (DEX) of the dilution end point is usually around 2.

Nucleic Acid

The genome is monopartite. Only one particle size of linear, positive-sense, single-stranded RNA is recovered.

Proteins

The viral genome encodes structural proteins and non-structural proteins.

Lipids

Lipids are not reported.

Antigenicity

The virus is serologically related to datura mosaic and tobacco etch viruses. The virus does not show serological relationships to brinjal mild mosaic and melilotus mosaic viruses.

Biological Properties

Natural Host

Domain
Viral hosts belong to the Domain Eucarya.

Domain Eucarya
Kingdom Plantae.

Kingdom Plantae
Phylum Magnoliophyta (Angiosperms).

Severity and Occurrence of Disease

Host: Signs and symptoms persist.

Transmission and Vector Relationships

Virus is transmitted by a vector. Virus is transmitted by mechanical inoculation.

Vector Transmission:
Virus is transmitted by arthropods, by insects of the order Hemiptera, family Aphididae; Myzus persicae. Virus is not transmitted by Aphis gossypii, Brevicoryne brassicae. Virus is transmitted in a non-persistent manner.

Experimental Hosts and Symptoms

Under experimental conditions susceptibility to infection by virus is found in several families. Susceptible host species are found in the Family Amaranthaceae, Caryophyllaceae, Chenopodiaceae, Compositae, Leguminosae-Caesalpinioideae, Scrophulariaceae, Solanaceae, Tetragoniaceae. The following species were susceptible to experimental virus infection: Amaranthus caudatus, Antirrhinum majus, Beta vulgaris, Calendula officinalis, Capsicum annuum, Cassia tora, Chenopodium amaranticolor, Chenopodium ambrosioides, Datura metel, Lycopersicon esculentum, Nicotiana glutinosa, Nicotiana tabacum, Petunia x hybrida, Solanum nigrum, Stellaria media, Tagetes erecta, Tetragonia tetragonioides.

Experimentally infected insusceptible Hosts: Families containing insusceptible hosts: Amaranthaceae, Apocynaceae, or Caryophyllaceae, Chenopodiaceae, Compositae, Cruciferae, or Cucurbitaceae, Leguminosae-Papilionoideae, Polemoniaceae, Solanaceae (2 /9), or Tropaeolaceae, Umbelliferae. Species inoculated with virus that do not show signs of susceptibility: Ageratum conyzoides, Amaranthus caudatus, Brassica oleracea var. botrytis, Cajanus cajan, Catharanthus roseus, Celosia cristata, Chenopodium album, Chenopodium murale, Cucumis sativus, Cucurbita moschata, Cucurbita pepo, Cyamopsis tetragonoloba, Dahlia pinnata, Daucus carota, Dianthus barbatus, Gomphrena globosa, Phlox drummondii, Physalis peruviana, Pisum sativum, Raphanus sativus, Solanum melongena, Sonchus oleraceus, Tropaeolum majus, Vigna unguiculata, Zinnia elegans.

Diagnostic Hosts

Diagnostic host species and symptoms:

Amaranthus caudatus, Calendula officinalis, Antirrhinum majus, Capsicum annuum, Datura metel, Nicotiana glutinosa, N. tabacum, Petunia x hybrida — chlorosis of systemically infected leaves.

Chenopodium amaranticolor, Tetragonia tetragonioides — chlorotic local lesions; no systemic infection.

Diagnostic host: insusceptible host species Chenopodium album, C. murale, Cucumis sativus, Cucurbita pepo, Physalis peruviana.

Maintenance and Propagation Hosts

Most commonly used maintenance and propagation host species are Datura metel, Nicotiana glutinosa.

Assay Hosts

Host: Assay hosts (for Local lesions or Whole plants):
Chenopodium amaranticolor (L), Datura metel (W), Nicotiana glutinosa (W), Tetragonia tetragonioides (L).

Cytopathology: Inclusions are present in infected cells. Inclusion bodies in the host cell are found in the cytoplasm. Cytoplasmic inclusions are pinwheels. Inclusions do not contain mature virions.

Geographical Distribution

The virus occurs in India.

References

Naqvi, Q.A., Hadi, S. and Mahmood, K. (1981). Plant Dis. 65: 271.

The following generic references are cited in the most recent ICTV Report.
A description of this taxon in VIDEdB, the plant virus database developed at the Australian National University by Adrian J. Gibbs and collaborators, contains an earlier description with the number 483 by A.A. Brunt, 1991.



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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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