Artículos, informes y presentaciones en Congresos
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Examinando Artículos, informes y presentaciones en Congresos por Autor "Cabello, Marta Noemí"
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Acceso Abierto Effect of endophytic entomopathogenic fungi on soybean Glycine max (L.) Merr. growth and yield(Science Direct, 2018) Russo, M. L.; Pelliza, S. A.; Vianna, M. F.; Allegrucci, N.; Cabello, Marta Noemí; Toledo, Andrea Vanesa; Mourelos, C.; Scorsetti, A. C.The soybean is a crop of economic importance and has a great number of potential pests which cause significant economic losses. The entomopathogenic fungi Beauveria bassiana, Metarhizium anisopliae and Metarhizium robertsii are important biological control agents, which can live as endophytes within plants and causes no apparent damage to the host. The aims of this study were to assess whether the entomopathogenic fungi B. bassiana, M. manisopliae and M. robertsii are able to colonize soybean plants as endophytes by using different inoculation techniques; and assess if these fungi produce any effect on the growth and yield of soybean plants under field conditions. We demonstrate the effectiveness of three inoculation methods (foliar spray, seed immersion and root immersion) to establish fungal entomopathogens as endophytes. Percentage of recovery for the different fungal strains was higher after 7 days of inoculation, through the organ that was in direct contact with the fungus during the inoculation. B. bassiana LPSc 1098 inoculated by leaf aspersion was the most successful strain. It was also demonstrated for the first time that inoculation with B. bassiana promoted the growth and increased the yield of soybean plants under filed conditions, with no adverse effects observed in the inoculated plants. - Artículo
Acceso Abierto Effects of endophytic Beauveria bassiana (Ascomycota: Hypocreales) on biological and reproductive parameters and food preference of the soybean pest Helicoverpa gelotopoeon(Science Direct, 2019) Russo, María Leticia; Scorsetti, Ana Clara; Vianna, María Florencia; Allegrucci, Natalia; Ferreri, Natalia; Cabello, Marta Noemí; Pelizza, Sebastian A.Objectives: We studied Beauveria bassiana ability to endophytic colonize soybean and its effects on some biological and reproductive parameters and on the food preference of Helicoverpa gelotopoeon, a polyphagous plague of several agronomic crops. Methods: A suspension of 1x108 conidia ml-1 of B. bassiana (LPSC 1098), was inoculated in soybean plants using the leaf spraying method. H. gelotopoeon survival, developement, fecundity and fertility were registered to evaluate fungal effect. Also, food preference was determined by the free-choice method. Results: B. bassiana as an endophyte adversely affected the duration of the larval stages (L1, L2, L3, L4) and of the adult stages, as well as the total duration of the life cycle. Furthermore, the oviposition period, fecundity and fertility of H. gelotopoeon decreased. This is the first report of decreased consumption of soybean leaves by H. gelotopoeon due to endophytic B. bassiana. Conclusions: This investigation shows that endophytic fungi could be considered as useful microorganisms for the integrated pest management