In the pathosystem of Dalbulus madis (DeLong & Wolcott) (Hemiptera: Cicadellidae), a vector of maize bushy stunt phytoplasma (MBSP), the interactions occurring during the passage, invasion, and multiplication of the phytoplasma inside the vector body have been generalized from other pathosystems, with a poor understanding of the specific interactions. With the aim to understand MBSP movement and potential specific interactions with its vector, D. maidis adults were dissected to obtain the intestine and salivary gland of both infected (acquisition access period = 4 d; latent period = 23 d) and noninfected individuals. The organs were processed for visualization with transmission electronic microscopy. Images of phytoplasma cells were observed in the alimentary canal, epithelium of the mesenteron, hemocele, and salivary gland of the vector, and were confirmed through observation of similar cells in maize roots with advanced disease symptoms. The study of the MBSP movement within its vector shows novel findings between the synergy of the MBSP phytoplasma and D. maidis.
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26 December 2015
First Findings in the Route of the Maize Bushy Stunt Phytoplasma Within Its Vector Dalbulus maidis (Hemiptera: Cicadellidae)
J. García González,
F. A. Ossamu Tanaka,
J. R. Spotti Lopes
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Journal of Economic Entomology
Vol. 109 • No. 2
April 2016
Vol. 109 • No. 2
April 2016
Dalbulus maidis
maize bushy stunt phytoplasma
MBSP movement