Occurrence of Metarhizium spp. in Central Brazilian soils

Abstract

The biodiversity of entomopathogenic fungi in tropical ecosystems is still little investigated, and the objective of this study was to isolate and identify fungi of the entomopathogenic genus Metarhizium (Hypocreales: Clavicipitaceae) present in undisturbed soils of the Central Brazilian Cerrado. A total of 107 Metarhizium isolates was obtained from soils collected from Cerrado sites in the state of Goiás; gene sequences from 63 of these were obtained and compared. Among these, one was confirmed to be M. anisopliae sensu stricto; 53 were very closely allied to M. anisopliae but require more extensive genetic characterization to determine if they might represent a new taxon in the M. anisopliae species complex. Eight of these Cerrado isolates were referable to M. robertsii, and the remaining isolate is the first South American (and Southern Hemisphere) collection of M. flavoviride var. pemphigi. These findings underline the need for better characterization of the diversity of these widely distributed fungi in Brazil.

Species associations and distributions of soil entomopathogenic fungi Metarhizium spp. in Japan

“…because the detection rate of Metarhizium in this area was higher than that throughout Japan (Table 1). This number of species is large compared with that found in other studies in the other countries: three species were detected from soils in eastern Canada and Brazil, respectively (Wyrebek et al 2011; Rocha et al 2013). It is not known how such a large number of genotypic groups can exist in close spatial proximity to each other.…”

“…in soil appears to vary geographically. In Brazil, M. anisopliae sensu strict was most abundant in soil (Rocha et al 2013). In eastern Canada, Mr was abundant in the rhizosphere soil of wild flowers (Wyrebek et al 2011).…”

Uso de <i>Metarhizium </i>spp. na produção de mudas pré-brotadas de cana-de-açúcar e seus efeitos na planta, em pragas e doenças

“…Dentre elas encontram-se Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), Sphenophorus levis (Vaurie, 1978) (LOPES et al, 2013a, LOPES et al, 2013b, LOPES et al, 2014REZENDE et al, 2015;ROCHA et al, 2013;ZANARDO, 2015). M. pemphigi (=M.…”

“…flavoviride var. pemphigi), M. rileyi e M. brasiliense também ocorrem no Brasil (KEPLER et al, 2014;ROCHA et al, 2013). Quatro outras novas linhagens foram identificadas no Brasil isoladas de amostras de solo e rizosfera e por não terem sido caracterizadas taxonomicamente foram referidas como Metarhizium sp.…”

“…1 (grupo irmão de M. anisopliae) (LOPES et al, 2014;ROCHA et al, 2013;REZENDE et al, 2015;ZANARDO, 2015), Metarhizium sp. indet.…”