Veterinarski arhiv, Vol. 70 No. 4, 2000.
Izvorni znanstveni članak
Effects of different temperatures and mineral salt on pellets of Monacrosporium thaumasium - a nematode-trapping fungus.
Jackson Victor de Araújo
; Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, Brazil
Weverton Marcos Sampaio
; Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, Brazil
Ricardo Sousa Vasconcellos
; Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, Brazil
Arthur Kanadani Campos
; Departamento de Veterinária, Universidade Federal de Viçosa, Viçosa, Brazil
Sažetak
Experiments were performed to determine whether the nematode -trapping fungus Monacrosporium thaumasium is able to survive encapsulation in sodium alginate and the effects of different temperatures and mineral salt. Pellets of sodium alginate were treated with paraffin, mineral salt or without these elements. They were placed in 250 ml Erlenmeyer flasks at 4 °C, room temperature, 25 °C, 30 °C and 35 °C. Over a 16-week period, once a week one pellet was placed in the center of an 8.5 cm Petri dish containing 20 ml of 2% Potato Dextrose agar, and radial growth was monitored for nine days. The best treatment (P<0.01) involved fungal pellets without paraffin, at 4 °C, and which remained viable for up to 16 weeks of storage. Pellets without paraffin induced higher growth than pellets with paraffin at room temperature, as well as pellets without mineral salt in all temperatures (P<0.01). This formulation of the fungus proved to be a powerful tool for use as biological control of nematodes and will be limited by storage conditions.
Ključne riječi
biological control; nematophagous fungi; nematode-trapping fungi; Monacrosporium thaumasium; nematode; sodium alginate
Hrčak ID:
100509
URI
Datum izdavanja:
20.8.2000.
Posjeta: 994 *