Detection of Bemisia tabaci Mediterranean cryptic species on soybean in São Paulo and Paraná States (Brazil) and interaction of cowpea mild mottle virus with whiteflies. (12th May 2021)

• Record Type: Journal Article
• Authors: Bello, Vinicius Henrique; da Silva, Felipe Barreto; Watanabe, Luís Fernando Maranho; Vicentin, Eduardo; Muller, Cristiane; de Freitas Bueno, Regiane Cristina Oliveira; Santos, Jessica Costa; De Marchi, Bruno Rossitto; Nogueira, Angélica Maria; Yuki, Valdir Atsushi; Marubayashi, Julio Massaharu; Pereira Sartori, Maria Márcia; Pavan, Marcelo Agenor; Ghanim, Murad; Krause‐Sakate, Renate
• Is Part Of: Plant pathology. Volume 70:Number 6(2021)
• Page Start: 1508
• Page End: 1520
• Publication Date: 2021-05-12
• Subjects: carlavirus -- endosymbiont -- MEAM1 -- MED -- whitefly; Agricultural pests -- Periodicals; Plant diseases -- Periodicals; 632
• DOI: 10.1111/ppa.13387
• Languages: English
• ISSNs: 0032-0862

Abstract

Abstract: Since the detection of Bemisia tabaci Middle East‐Asia Minor 1 (MEAM1) species in Brazil in the early 1990s, this whitefly has been the predominant species and the main viral vector in the country. In this work, whiteflies were collected from commercial soybean fields near and far from greenhouses where Mediterranean (MED) species had previously been detected infesting vegetable crops. Results indicated that MEAM1 was the predominant whitefly species in soybean in most sampling sites, while MED was found colonizing soybean plants in open field conditions alone and/or with MEAM1 in several places. Among the tested insects, MED species was mostly detected harbouring the facultative endosymbiont Hamiltonella . We also detected cowpea mild mottle virus (CPMMV) infecting soybean plants. Transmission assays demonstrated that MED species was more efficient transmitting CPMMV from beans to beans and from soybean to soybean plants than MEAM1, while MEAM1 was more efficient in transmitting the virus from soybean to bean than MED. Performance assays indicated that adult emergence of both species on CPMMV‐infected soybean plants was higher when compared with the emergence on healthy plants. Moreover, nonviruliferous MED and MEAM1 adults preferred to settle more often on healthy plants, while viruliferous adults settled more often on CPMMV‐infected soybean plants. As MED has already been found in soybean open fields in São Paulo and Paraná States, Brazil, and it is a good vector of CPMMV, we anticipate problems related to whitefly management and to increase in the incidence of the virus in soybean. Abstract : The whitefly species MEAM1 and MED were found in commercial soybean fields. We also detected CPMMV infecting soybean plants. Transmission assays demonstrated that both MEAM1 and MED can efficiently transmit CPMMV.