El investigador del INTA, Daniel Grasso, propone el estudio de las comunidades microbianas para conocer el impacto de las prácticas agrícolas sobre la calidad del suelo.
Trabajos en Prensa
Toxigenic potential of Astragalus pehuenches Niederl in Argentina
Recibido 19 de septiembre de 2017 // Aceptado 13 de junio de 2018 // Publicado online 16 de enero de 2019
MARTÍNEZ, A.1; GARDNER, D.R.2; COOK, D.2; GIMENO, E.J.3; ROBLES, C.A.1
Abstract
The genus Astragalus is widespread over the world being some toxic to livestock. Astragalus pehuenches has historically been incriminated in poisoning sheep, cattle and horses in Argentina. Due to the lack of information on the toxicological aspects of this species, a study was carry out to evaluate the toxigenic potential of A. pehuenches in Rio Negro province. High concentrations of swainsonine from 0.070 to 0.097% were determined in this region. Swainsonine concentrations was highly variable between specimens (range: 0.001- 0.204%), however no differences were found regarding the toxigenic potential between areas (p=0.277). This study confirms the risk that this species it constitutes for livestock in Patagonia region.
Keywords: Astragalus pehuenches, toxicity, livestock, Patagonia argentina.
1Instituto Nacional de Tecnología Agropecuaria (INTA), Grupo de Salud Animal. CC. 277 (8400) SC de Bariloche, Argentina.
Correo electrónico: martinez.agustin@inta.gob.ar
2USDA/ARS Poisonous Plant Research Laboratory, 1150 East 1400 North, Logan, Utah 84341.
3Universidad Nacional de La Plata, Facultad de Ciencias Veterinarias, Instituto de Patología, La Plata, Argentina.
