Method for rejuvenating and detoxifying edible fungal strain by using protoplast regeneration technology
A protoplast and edible fungus technology, which is applied in the field of cell engineering, can solve the problems of easy degradation, aging, unstable edible fungus characters, and easy to be harmed by virus diseases, and achieves the effect of fast utilization and high utilization rate.
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Embodiment 1
[0030] Bailing mushroom white 10 protoplast rejuvenation and virus-free strain, the specific method is as follows:
[0031] 1. Parent selection: Pleurotus ostreatus 89 is an edible fungus variety cultivated all year round, but it is easy to degenerate. Degenerated hyphae grow slowly, sparsely or in bundles, uneven development, yellow mycelia, variegated spots or irregular granules appear in the strain. Mushroom production is reduced and susceptible to pests and diseases.
[0032] 2. Protoplast preparation:
[0033] Using 0.6mol / L mannitol and 2% lysozyme as the cell wall degradation solution, culture mycelia in P89 liquid at 35°C for 2.5 hours, collect the protoplasts by filtration and centrifugation, and examine the protoplasts with a microscopic plate number of bodies.
[0034] 3. Protoplast regeneration:
[0035] Protoplasts were pre-cultured in PSA medium for 12 hours, and then cultured on PSA solid medium until colonies were produced.
[0036] 4. Characteristics and ...
Embodiment 2
[0045] Pleurotus eryngii was used to replace Pleurotus eryngii 89 in Example 1, and the remaining operating steps, methods, reagent types and concentrations were the same as in Example 1. The results showed that after rejuvenation and detoxification, the strain had obvious advantages.
Embodiment 3
[0047] Bailing mushroom 10 was used to replace Pleurotus ostreatus 89 in Example 1, and the remaining operation steps, methods, reagent types and concentrations were the same as in Example 1. The results showed that the superiority of the strain was obvious after rejuvenation and detoxification.
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