PROIMI   05436
PLANTA PILOTO DE PROCESOS INDUSTRIALES MICROBIOLOGICOS
Unidad Ejecutora - UE
artículos
Título:
Experimental transmission of Corn Stunt Spiroplasma present in different regions of Argentina
Autor/es:
PABLO CARPANE,; GRACIELA LAGUNA,; EDUARDO GABRIEL VIRLA; L PARADELL, SUSANA; LEÓN MURÚA,; MARIA DE LA PAZ, GIMENEZ PECCI
Revista:
MAYDICA
Referencias:
Lugar: Bergamo, Italy; Año: 2006 vol. 51 p. 461 - 468
ISSN:
0025-6153
Resumen:
The aim was to transmit Corn stunt spiroplasma
(Spiroplasma kunkelii Whitcomb) using field-collectedThe aim was to transmit Corn stunt spiroplasma
(Spiroplasma kunkelii Whitcomb) using field-collectedSpiroplasma kunkelii Whitcomb) using field-collected
Dalbulus maidis insects (Hemiptera - Cicadellidae),
and diseased plants from places in the subtropical and
temperate regions of Argentina. Field-collected D. maidisinsects (Hemiptera - Cicadellidae),
and diseased plants from places in the subtropical and
temperate regions of Argentina. Field-collected D. maidisD. maidis
populations transmitted the spiroplasma in 39% of the cases
when a density of five insects per plant was used.
Transmissions were obtained from diseased plants collected
in two subtropical locations. In all the symptomatic
plants, the presence of spiroplasma was detected by serology
and confirmed with PCR. The development of the
symptoms and the pathogen titer varied between plants
infected with insects from the same location, leading to
the identification of two plant groups: one with severe
symptoms and high pathogen titer, and the other with
mild symptoms and lower titer, showing a direct relation
between pathogen titer and the severity of symptoms.