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Journal of Negative and No Positive Results
On-line version ISSN 2529-850X
Abstract
MATIAS-LUIS, Gabriel et al. Evaluation of radial growth of Lactarius volemus in semisolid medium. JONNPR [online]. 2021, vol.6, n.7, pp.926-940. Epub Dec 18, 2023. ISSN 2529-850X. https://dx.doi.org/10.19230/jonnpr.3841.
Objective.
To evaluate the radial growth of Lactarius volemus in five semi-solid culture media in vitro.
Materials and methods.
Fruitful bodies of L. volemus from the Sierra Norte of the state of Oaxaca, Mexico, were cultured in the laboratory in Potato Dextrose Agar Papa, Czapek-Dox Agar, Malt Extract Agar, Potato Sucrose Agar and Dextrose Saboraud Agar; using two seeding techniques. The morphological characteristics of colonies obtained from different samples of the fruiting body were evaluated, as well as the radial growth of each one.
Results.
The evaluated colonial growth allowed to select a culture medium that meets the optimal conditions for the cultivation of Lactarius volemus in vitro. Not all samples used develop abundant growth: the sample from latex shows little growth.
Conclusions.
With the evaluation of the radial growth of Lactarius volemus a direct reference to the growth cycle of this species is obtained; it is possible to identify the exponential and stationary phases but the conditions of the medium do not allow evaluating the phase of death due to dehydration and reduction of the agar.
Keywords : Lactarius deliciosus; wild mushroom; macromycete; basidiomycete; basidiocarp.