INVESTIGADORES
DÍAZ Gabriela VerÓnica
congresos y reuniones científicas
Título:
OPTIMAL CONDITIONS OF MYCELIAL GROWTH OF AURICULARIA FROM PARANENSE RAINSFOREST, ARGENTINA FOR THEIR DOMESTICATION
Autor/es:
ROMINA OLGA CONIGLIO; CINTHYA ALICIA MARCELA LÓPEZ; GABRIELA VERÓNICA DÍAZ; EDGARDO OMAR ALBERTO ; PEDRO DARÍO ZAPATA
Lugar:
Manaus
Reunión:
Congreso; IX Congresso Brasileiro de Micologia; 2019
Resumen:
Mushrooms are recognized as natural and healthy foods that proceed from an eco-friendly farming system (Yan et al., 2004). In order to fulfill the increasing demand for ediblemushrooms and maintain a steady supply throughout the year, it is necessary to domesticate new wild edible mushroom species (Bandara et al., 2017). In this sense, the study of species from the genus Auricularia, generally termed wood ear mushrooms, become interesting because their numerous medicinal and nutritional properties (Onyango et al., 2016). The objective of this work was to determine the optimal temperatures and speed of growth for five A. fuscosuccinea strains isolated from Misiones Rainforest, Argentina. Five strains, IMiBioCult 0052, 0055, 0056, 0058 and 0081 were used. These strains are deposited in the collections of the ?Instituto de Biotecnología Misiones? and ?Instituto Misionero de Biodiversidad?. Agar plugs of 0.6 mm with mycelium from each strain was placed in the center of Petri dishes containing potato dextrose agar (PDA) medium. Each strain was incubated by duplicate at 20°C, 25°C and 30°C for 15 days and the diameter of the colonies was evaluated daily. The optimal growth temperature of strains 0055, 0056 and 0081 was 30° C and the growth diameter was the maximum (8.2 cm) covering the whole plate at day 10 of incubation, while the maximum diameter for 25 °C was reached at day 13-14. The optimal growth temperatures of strains 0052 and 0058 were 25°C and 30°C, without statistically significant differences (p>0.05) and the maximum mycelial development was reached at days 12-13 of culture for both strains. Regards the incubation at 20°C, any strain reached the maximum diameter until day 15. Knowing optimum temperature of growth of Auricularia become essential for its domestication since this edible mushroom could provide nutritional benefits and livelihood opportunities to the farmers in this region.