| Texto completo | |
| Autor(es): Mostrar menos - |
Barreto da Silva, Felipe
;
Raposo, Rodrigo de Sarandy
;
de Campos, Sarah Forlani
;
Uzan, Juliana
;
Marubayashi, Julio Massaharu
;
Ribeiro-Junior, Marcos Roberto
;
Nogueira, Angelica Maria
;
Martines, Caroline da Cruz
;
Bello, Vinicius Henrique
;
Muller, Cristiane
;
Sartori, Maria Marcia Pereira
;
Krause-Sakate, Renate
Número total de Autores: 12
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| Tipo de documento: | Artigo Científico |
| Fonte: | INSECTS; v. 15, n. 8, p. 13-pg., 2024-08-01. |
| Resumo | |
Simple Summary: Cowpea mild mottle virus (CPMMV) transmitted by the invasive whitefly Bemisia tabaci is a concern for soybean production in Brazil. The Middle East-Asia Minor 1 (MEAM1) and Mediterranean (MED) cryptic species efficiently transmit the virus and resist conventional insecticides, presenting significant challenges to control. Our results indicate a statistically significant difference in the acquisition, inoculation, and retention of CPMMV by Bemisia tabaci MEAM1 and B. tabaci MED cryptic species, with MED being significantly more efficient at transmitting CPMMV compared to MEAM1. Bemisia tabaci MED can also transmit the virus with a shorter acquisition period compared to that of MEAM1, being considered a better vector of CPMMV. Additionally, over three soybean seasons (2019/2020, 2020/2021, and 2021/2022), MEAM1 was predominant across most sites visited, but MED co-occurred with MEAM1 in different places, showing the advancement of this pest in open field areas of Brazil. Cowpea mild mottle virus (CPMMV, genus Carlavirus, family Betaflexividae) is an economically important virus infecting soybeans in Brazil, where it was initially identified in 1983. CPMMV is transmitted by the whitefly, Bemisia tabaci, and occasionally by seeds. Over the last three decades, the most invasive B. tabaci Middle East-Asia Minor 1 (MEAM1), and lately the Mediterranean (MED) cryptic species, have replaced the indigenous species in Brazil, with MEAM1 being predominant. In this study, we investigated the transmission properties of CPMMV by MEAM1 and MED, and their distribution in major soybean-growing areas in S & atilde;o Paulo State. Our results from transmission assays with a single insect revealed that MED is a more efficient vector compared to MEAM1, transmitting the virus within a two-minute inoculation access period. B. tabaci MEAM1 is still the predominant whitefly species in S & atilde;o Paulo State, but MED was also identified in different places, mainly in mixed infestations with MEAM1. Some areas transitioned to a predominance of MED over the three years, while others, where MED had previously been detected, showed a reduction in the insects during the same period. Understanding the transmission dynamics of CPMMV and the distribution of its vectors is crucial for implementing effective management strategies to control the virus spread and protect soybean crops. Further research into the mechanisms driving the shifts in whitefly species dominance and CPMMV distribution will be essential for sustaining soybean production in Brazil. (AU) | |
| Processo FAPESP: | 19/18639-4 - Interações envolvendo Begomovírus, solanáceas e diferentes espécies crípticas de Bemisia tabaci |
| Beneficiário: | Angélica Maria Nogueira |
| Modalidade de apoio: | Bolsas no Brasil - Pós-Doutorado |
| Processo FAPESP: | 19/24642-8 - Cowpea mild mottle virus em soja: interação vírus x vetor, incidência e vetor associado, variabilidade do vírus e impactos na qualidade fisiológica de sementes provenientes de plantas infectadas |
| Beneficiário: | Felipe Barreto da Silva |
| Modalidade de apoio: | Bolsas no Brasil - Doutorado |