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Comparative aphid and mechanical transmissibility of bean yellow mosaic virus isolates

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Published .
Written in English

Subjects:

  • Virus diseases of plants,
  • Plant diseases

Book details:

Edition Notes

Statementby Ieuan Rhys Evans
The Physical Object
Pagination72 leaves :
Number of Pages72
ID Numbers
Open LibraryOL25999140M
OCLC/WorldCa37683328

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Comparative aphid and mechanical transmissibility of bean yellow mosaic virus isolates. By Ieuan Rhys Evans. Abstract (Thesis) Thesis (Ph. D.)--University of Florida, (Bibliography) Includes bibliographical references (leaves )(Statement of Responsibility) by Ieuan Rhys Evans (leaves ) An isolate of Bean yellow mosaic virus (BYMV) not transmitted by aphids (NAT) was compared with the aphid-transmissible isolate (MI) from which it was derived. For each isolate, the sequence of the coat protein and parts of the helper component was determined. A single nucleotide substitution caused a NAG to NAS alteration in the coat protein of the non aphid-transmissible isolate. An isolate of Bean yellow mosaic virus (BYMV) not transmitted by aphids (NAT) was compared with the aphid-transmissible isolate (MI) from which it was derived. For each isolate, the sequence of the. Clones of Acyrthosiphon pisum (pea aphid) differ considerably in their ability to transmit Bean yellow mosaic virus (BYMV), and this is not related to the geographic origin or the colour of the.

Transmission experiments of different isolates of Cucumber mosaic virus (CMV), Watermelon mosaic virus (WMV) and Zucchini yellow mosaic virus (ZYMV) were conducted using established colonies of. Four strains (NL-1, NL-1n, NL-7 and NL-7n) of Bean common mosaic virus (BCMV) prevalent on common bean (Phaseolus vulgaris) in Himachal Pradesh, a north-western Himalayan state of India were compared at the 3′ terminal region of the viral genome to elucidate variation and relationship among these strains. 3′ terminal region comprising of partial nuclear inclusion b (NIb) (– bp. Mechanical transmission assays resulted in chlorotic local lesions on C. quinoa and C. amaranticolor, mosaic on Vigna unguiculata and Nicotiana benthamiana, and symptoms on sesame that are similar to those observed in the field. The disease could also be reproduced in sesame by aphid (Myzus persicae) transmission in a nonpersistent manner. TEM. yellow mosaic virus (BYMV) and bean common mosaic virus. While beans can become infected by multiple viruses, BYMV seems to be the one most frequently observed. Symptoms Although symptoms of BYMV may vary depending on time of infection, bean variety, and virus strain, symptoms generally include one or more of the following: crinkling, downward.

Bean yellow mosaic virus is a plant pathogenic virus in the genus Potyvirus and the virus family other members of the Potyvirus genus, it is a monopartite strand of positive-sense, single-stranded RNA surrounded by a capsid made for a single viral encoded protein.   The symptoms of bean yellow mosaic (BYMV) vary again, depending upon the virus strain, stage of growth at the time of infection and variety of bean. As in BCMV, BYMV will have contrasting yellow or green mosaic markings on the foliage of the infected plant. Factors affecting aphid transmission of bean yellow mosaic virus. Donato Gallitelli, Giovanni P. Martelli, in Advances in Virus Research, C Bean yellow mosaic virus. BYMV, a member of the genus Potyvirus, has filamentous particles ca. nm long, containing ca. 5% of ssRNA nt in size (Acc. No. NC_, D, U).The virus was initially recorded from globe artichoke in Apulia (Russo and Rana, ), then in Greece (Rana and.