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- Title
梯棱羊肚菌外源营养作用的影响因素.
- Authors
刘奇正; 屈珊; 谭方河; 董彩虹
- Abstract
The exogenous nutrient bags (ENB) play an important role in the morel cultivation in China, but the mechanism has not been fully analyzed. In this study, an exogenous nutrition model was first established. The exogenous nutrition module (ENM) in the model could export nutrients and be used by the hyphae of Morchella importuna in the plates, and thereby the effectiveness of the model was confirmed. Adding exogenous nutrition (EN) to infertile medium increase the biomass significantly in comparison with using rich nutrition medium. The sclerotia formed at different locations in the plates when EN was added at different growth stages of M. importuna and the biomass increment was affected. When EN was added at the initial stage of sclerotial formation, the biomass of M. importuna maximally increased. Factors such as the adding location and amount of EN did not affect the biomass observed in this model. ENMs wrapped with and without polypropylene bags did not significantly affected the total biomass, however, the growth rate and total biomass in the wrapped group were lower than those of non-wrapped group in plate, while the opposite trend occurred in ENM. Wrapping EN in filter paper and aluminum foil appeared to be similar in affecting the fungal biomass as compared with wrapping EN in polypropylene bag. C/N ratio of 20:1 was most advantageous for accumulation of biomass. Exogenous nutrition research model established in this study was consistent with the field cultivation of M. importuna, and the phenomenon that was not easy to be observed in cultivation became visible in the model, being helpful for further study of the mechanism of exogenous nutrition.
- Subjects
CHINA; ALUMINUM foil; FILTER paper; BIOMASS; POLYPROPYLENE; SCLEROTIUM (Mycelium)
- Publication
Mycosystema, 2021, Vol 40, Issue 12, p3157
- ISSN
1672-6472
- Publication type
Article
- DOI
10.13346/j.mycosystema.210329