The features of clonal micropropagation in three variations of Ludisia discolor were studied. Brood buds, apical shoot meristems, immature seeds and mature seeds were used as explants. They are grown using Murashige & Skoog modified medium. A special technique has been developed for the sterilization and planting of microscopic mature seeds. Mature seeds germinated for 60-70 days. Seeds from 25-day-old capsules showed the best results among immature seeds. They gave mass shoots already on the 25-30 day after planting. The roller of the future first leaf of the protocorms was laid in the dark 2 months after germination. Switching to the light mode induced rapid gemmorizogenesis - the formation of the first green leaves, stem and adventitious roots. Seeds from 15-day-old capsules did not germinate at all. Planting with immature seeds is the most effective method of clonal reproduction of L. discolor in vitro.
The aim of the present work was to explore insights into the possibility of cultivating the mycelium of the edible basidiomycetes, i.e., Agaricus bisporus (J.E. Lange) Imbach, Lentinula edodes (Berk.) Pegler, and Pleurotus ostreatus (Jacq.) P. Kumm. on wastes produced from lavender, sage, mint, and rose. To achieve this goal, we assessed the growth and development of strains on various substrates, a component analysis of the biomass of strains, initial essential oil raw materials after processing, and raw materials after exposure to the mycelium of basidial fungi strains. The wastes of essential oil production can be transformed with the help of edible basidiomycetes (A. bisporus, L. edodes, P. ostreatus) into a valuable fodder product enriched with proteins and vitamins and with good organoleptic properties. The best of the tested substrates was the green mass of mint after successive distillation and extraction. The conversion of solid waste from lavender, rose, sage, and mint processing depends on the types of strains. The high accumulation of octen-3-ol (up to 1.38 g/kg of the substrate) by P. ostreatus was confirmed by its organoleptic evaluation. The results suggested the cultivation of edible mushroom mycelium on the solid waste of mint, lavender, and sage processing could produce high-grade (enriched in proteins and vitamins) biomass for the purpose of fodder. These by-products could serve as a basis for the creation of cultivation technology for champignon, shiitake, and oyster mushrooms as food products using secondary resources of essential oil production.
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