| Full text | |
| Author(s): |
Vinicius Henrique Bello
[1]
;
Lorenna Leal Pires
[2]
;
Gleice Rafaela Renunza Pires
[3]
;
Gustavo Verruma Bernardi
[4]
;
Pedro Luis Ramos-González
[5]
;
Renato Barbosa Salaroli
[6]
;
Elliot Watanabe Kitajima
[7]
Total Authors: 7
|
| Affiliation: | [1] Universidade de São Paulo. ESALQ. Depto. de Fitopatologia e Nematologia - Brasil
[2] Universidade de São Paulo. ESALQ. Depto. de Fitopatologia e Nematologia - Brasil
[3] Universidade de São Paulo. ESALQ. Depto. de Fitopatologia e Nematologia - Brasil
[4] Universidade de São Paulo. ESALQ. Depto. de Fitopatologia e Nematologia - Brasil
[5] Instituto Biológico. Lab. de Biologia Molecular Aplicada - Brasil
[6] Universidade de São Paulo. ESALQ. Depto. de Fitopatologia e Nematologia - Brasil
[7] Universidade de São Paulo. ESALQ. Depto. de Fitopatologia e Nematologia - Brasil
Total Affiliations: 7
|
| Document type: | Journal article |
| Source: | Scientia Agricola; v. 82, 2025-03-17. |
| Abstract | |
ABSTRACT An isolate of the tobamovirus tobacco mild green mosaic virus (TMGMV), Tobamovirus mititessellati, was found naturally infecting petunia (Petunia × hybrida) cv. Pinstripe, causing reduced leaf size, mottling, and color breaking of flowers, in an experimental field at Piracicaba, São Paulo state, Brazil. TMGMV was identified by virion morphology, cytopathology, transmission experiments, and molecular assays. The entire nucleotide sequence of this petunia isolate of TMGMV (TMGMV-Pet) was obtained and demonstrated, in essence, to be similar to previously analyzed isolates. One hundred and twenty plant species were assayed by mechanical transmission, and 35 of them from nine families, both previously reported and unreported species, were shown to be experimentally susceptible to TMGMV-Pet. On the other hand, certain species, among 85 unsusceptible hosts for TMGMV-Pet, known to be susceptible to TMGMV, failed to be infected. Cytopathological studies on naturally and experimentally infected host plants revealed that virions of TMGMV-Pet produced para-crystalline aggregates, but not angular arrays, which are considered characteristic of TMGMV. As previously described, thin sections revealed the presence of pseudo-virions in the stroma of chloroplasts in TMGMV-Pet-infected tobacco (Nicotiana tabacum), and, additionally, in other hosts such as N. clevelandii, N. megalosyphon, and petunia indicating that this process is not restricted to tobacco. (AU) | |
| FAPESP's process: | 22/05043-9 - Solanum violifolium as a natural host for three different viruses transmitted by Brevipalpus mites: a model for the study of the interaction among these viruses |
| Grantee: | Gustavo Verruma Bernardi |
| Support Opportunities: | Scholarships in Brazil - Scientific Initiation |
| FAPESP's process: | 21/02179-4 - Evaluation of the diversity of molecular pathogens (virus and viroids) of plants in Brazi: Phase III - 2021/2023 |
| Grantee: | Elliot Watanabe Kitajima |
| Support Opportunities: | BIOTA-FAPESP Program - Regular Research Grants |
| FAPESP's process: | 20/05563-7 - The amplifier host hypothesis in the epidemiology of the Golden Mosaic of tomatoes, caused by Tomato Severe Rugose Virus (ToSRV): experimental proof and determination of the conditions of occurrence |
| Grantee: | Vinicius Henrique Bello |
| Support Opportunities: | Scholarships in Brazil - Post-Doctoral |