Fungus for promoting germination of seeds of orchidaceae medicinal plant gymnadenia conopsea

Abstract

The invention relates to a fungus for promoting germination of seeds of an orchidaceae medicinal plant gymnadenia conopsea. Bacterial colonies of the fungus are rapidly grown in a PDA (Potato DextroseAgar) medium, the bacterial colonies have a great amount of flocculent aerial hyphae, the front sides of the bacterial colonies are white brown, the back sides of the bacterial colonies are light brown, the aged aerial hyphae are black brown, the bacterial colonies are tidy in edge and not uniform in thickness, the growths speed of the hyphae is 0.54-0.57mm / hour, the diameter of the hyphae is 2.71-3.72mu m, a diaphragm structure can be clearly observed microscopically, near right angles can be branched, and sexual reproduction spore or asexual chlamydospore is not generated. The fungus provided by the invention is capable of effectively promoting germination of the seeds of the gymnadenia conopsea, and can be applied to later gymnadenia conopsea seedling breeding.

Description

technical field [0001] The invention belongs to the field of biotechnology, and in particular relates to a fungus for promoting the germination of the seeds of the orchid medicinal plant Panax ginseng. Background technique [0002] Orchidaceae is one of the largest and most diverse families of flowering plants. There are about 26,000 species of orchids in the world, which are widely distributed in various terrestrial ecosystems. At present, many species of orchids have become rare and endangered species, and they are groups that have attracted much attention in international biodiversity conservation. The Chinese government also attaches great importance to the protection of orchids. All orchids have been included in the "List of National Key Protected Wild Plants" and will be included in the protection category of the "Regulations of the People's Republic of China on the Protection of Wild Plants". [0003] Ginseng is a kind of terrestrial orchid plant, which is scattered ...

AI Technical Summary

Problems solved by technology

And under natural conditions, when hand ginseng reproduces asexually, only one small hand ginseng grows on the root of the old hand ginseng. There are few reports

In order to solve the resource shortage problem of hand ginseng, some scholars in my country also try to realize the resource regeneration of hand ginseng through tissue culture or cell culture. However, these studies are still far from real industrial production.