Trichomycetes fungi associated with insect larvae from aquatic environments in Misiones and Tierra del Fuego, Argentina

LÓPEZ LASTRA, C.C., SCORSETTI, A.C., MARTI, G.A., COSCARÓN, S., AND LICHTWARDT, R.W.

Asheville, Carolina del Norte, USA

Congreso; Annual Meeting of the Mycological Society of America; 2004

Mycological society of America MSA

Institutional Adress ( es): CEPAVE . Centro de Estudios Parasitologicos y de Vectores (CONICET- UNLP) calle 2 Nº 584 (1900) la Plata, Buenos Aires province , Argentina.  _1 Museo de Ciencias Naturales , paseo del bosque s/n , (1900) La Plata, Buenos Aires province, Argentina. Title: Trichomycetes fungi associated to insect larvae from aquatic environments of Misiones and Tierra del Fuego provinces of Argentina. Abstract text: Abstract text: Trichomycetes fungi live obligately associated with arthropod guts from all over the world. Fifteen species of Trichomycetes fungi living in the guts of aquatic insects are reported for two provinces of Argentina at the two extremes Misiones at Northeast and Tierra del Fuego, Southernmost extreme of the country and from the world.  Trichomycetes  species recorded are mostly belong to Harpellales and they  were identified from guts (hindguts and midguts) of Culicidae, Chironomidae, Ceratopogonidae, Simuliidae, (Insecta: Diptera), Ephemeroptera and Plecoptera inmature stages. Five species of Harpellales were obtained from Misiones insects and eight species from Tierra del Fuego insects.  At Tierra del Fuego  two  of the species  where included in Order  Amoeboidiales. Most of the species of Trichomycetes fungi reported here were also cited for other hosts and regions of Argentina before, however most of them are new records for the country and  for Southamerica. Trichomycetes fungi live obligately associated with arthropod guts from all over the world. Fifteen species of Trichomycetes fungi living in the guts of aquatic insects are reported for two provinces of Argentina at the two extremes Misiones at Northeast and Tierra del Fuego, Southernmost extreme of the country and from the world.  Trichomycetes  species recorded are mostly belong to Harpellales and they  were identified from guts (hindguts and midguts) of Culicidae, Chironomidae, Ceratopogonidae, Simuliidae, (Insecta: Diptera), Ephemeroptera and Plecoptera inmature stages. Five species of Harpellales were obtained from Misiones insects and eight species from Tierra del Fuego insects.  At Tierra del Fuego  two  of the species  where included in Order  Amoeboidiales. Most of the species of Trichomycetes fungi reported here were also cited for other hosts and regions of Argentina before, however most of them are new records for the country and  for Southamerica. The lower diversity of Trichomycetes fungal species found at Misiones aquatic environments could possible due to warmer temperatures of the streams and ponds 15-24 º C compared with Tierra del Fuego with temperatures ranging from 9-15 ºC .