La quemazon bacteriana de la caraota (Phaseolus vulgaris L.) en Venezuela

By:

ALBARRACIN, M

Contributor(s):

Material type: Article

ArticleLanguage: Spanish Description: 12(3-4):213-225Subject(s): LOC classification:

21007

In: Revista de la Facultad de Agronomía, Universidad Central de Venezuela (Maracay, Venezuela)Summary: Se realizo un estudio para determinar la presencia del anublo bacteriano en frijol en diferentes localidades de los Estados de Aragua (Cagua, Maracay y Villa de Cura), Anzoategui (El Tigre), Carabobo (Güingüe) y Yaracuy (Guarabao) en Venezuela. Se recolectaron 35 muestras sospechosas de estar atacadas por la enfermedad, de las cuales se obtuvieron 22 aislamientos de la bacteria. La incidencia de la enfermedad vario de una localidad a otra, pero la enfermedad estuvo presente en todas las localidades evaluadas. Los aislamientos bacterianos se estudiaron individualmente mediante pruebas de patogenicidad, estudios de caracteristicas culturales, pruebas bioquimicas y se observaron al microscopio electronico. Todas las pruebas senaladas anteriormente concuerdan con datos registrados de la bacteria Xanthomonas campestris pv. phaseoli. En aislamientos de Maracay y El Tigre, se encontro la presencia de la variante fuscans, la cual se describe por primera vez en el pais. Esta variante se caracteriza por la produccion de una coloracion marron en los medios de cultivo. (RA)Summary: A study was conducted to determine the presence of bacterial blight of bean in different localities of the states of Aragua (Cagua, Maracay, and Villa de Cura), Anzoategui (El Tigre), Carabobo (Güigüe), and Yaracuy (Guarabao) in Venezuela. Thirty-five samples of bean plants suspected of being attacked by the disease were collected, from which 22 isolates of the bacteria were obtained. Disease incidence varied from one locality to another, but the disease was present in all the localities sampled. The bacterial isolates were studied individually through pathogenicity tests, studies of cultural characteristics, biochemical tests, and observations with the electron microscope. All the tests performed agreed with data reported for the bacteria Xanthomonas campestris pv. phaseoli. In isolates from Maracay and El Tigre, the variant fuscans was found, described for the 1st time in the country. This variant is characterized by the production of a brown coloration in culture media. (AS)

Tags from this library: No tags from this library for this title.

Average rating: 0.0 (0 votes)

Holdings ( 1 )
Title notes ( 2 )

Holdings
Item type	Current library	Collection	Call number	Copy number	Status	Date due	Barcode	Item holds
Journal Article	CIAT Library Document collection CINFOS	Document Collection CINFOS	21007 (Browse shelf(Opens below))	c.1	Short Loan		100040861

Total holds: 0

Se realizo un estudio para determinar la presencia del anublo bacteriano en frijol en diferentes localidades de los Estados de Aragua (Cagua, Maracay y Villa de Cura), Anzoategui (El Tigre), Carabobo (Güingüe) y Yaracuy (Guarabao) en Venezuela. Se recolectaron 35 muestras sospechosas de estar atacadas por la enfermedad, de las cuales se obtuvieron 22 aislamientos de la bacteria. La incidencia de la enfermedad vario de una localidad a otra, pero la enfermedad estuvo presente en todas las localidades evaluadas. Los aislamientos bacterianos se estudiaron individualmente mediante pruebas de patogenicidad, estudios de caracteristicas culturales, pruebas bioquimicas y se observaron al microscopio electronico. Todas las pruebas senaladas anteriormente concuerdan con datos registrados de la bacteria Xanthomonas campestris pv. phaseoli. En aislamientos de Maracay y El Tigre, se encontro la presencia de la variante fuscans, la cual se describe por primera vez en el pais. Esta variante se caracteriza por la produccion de una coloracion marron en los medios de cultivo. (RA)

A study was conducted to determine the presence of bacterial blight of bean in different localities of the states of Aragua (Cagua, Maracay, and Villa de Cura), Anzoategui (El Tigre), Carabobo (Güigüe), and Yaracuy (Guarabao) in Venezuela. Thirty-five samples of bean plants suspected of being attacked by the disease were collected, from which 22 isolates of the bacteria were obtained. Disease incidence varied from one locality to another, but the disease was present in all the localities sampled. The bacterial isolates were studied individually through pathogenicity tests, studies of cultural characteristics, biochemical tests, and observations with the electron microscope. All the tests performed agreed with data reported for the bacteria Xanthomonas campestris pv. phaseoli. In isolates from Maracay and El Tigre, the variant fuscans was found, described for the 1st time in the country. This variant is characterized by the production of a brown coloration in culture media. (AS)