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Anonymous users2024-02-16Cordyceps sinensis belongs to the fungi family, belonging to the kingdom of fungi, ascomycetes, sclerotinia, ergomycetes, cordyceps (ergomyceae), cordyceps, and cordyceps species.
Starting from late August every year, the larvae of the host bat moth of Cordyceps sinensis encounter ascospores of Cordyceps sinensis spread by wind or rain, and are infected when the environmental conditions are suitable, and the infected larvae are slow to move, and crawl to the surface near the surface and die as zombie worms at 2 9 o'clock in October. Cordyceps sinensis absorbs nutrients from insects for growth and reproduction, resulting in hyphae in the insects, and then forming a subplot. From November to February, the ground temperature is extremely low, and the growth of the sub-constellation is very slow or even stops; In May, the temperature rises to 4 10, the soil thaws, the body surface of the zombie worm grows hyphae and binds to the soil into a membrane skin, and the fruiting body rapidly grows upwards to 20 50 mm rod-shaped fruiting body, exposing the ground; 6 In mid to late July, the head of the fruiting body gradually expands, and the ascospores mature and eject under suitable temperature, humidity and light.
In its natural state, it takes about 3 years for Cordyceps sinensis to complete the asexual and sexual generations.
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Anonymous users2024-02-15Answer: Cordyceps sinensis is a fungal body that grows by gradually digesting the nutrients in the bat moth larvae after the Cordyceps sinensis fungus invades the body of the bat moth larvae. After the larvae are infected by the Cordyceps fungus during the growth process, the fungus will multiply in the larvae, and when the larvae are in pain, they will drill into the shallow layer of the ground, and die in the shallow layer to become a zombie insect, and when the Cordyceps fungus erodes the internal organs of the insect body, it will break through the body of the larva upwards and finally form a columnar sporophyte.
1. In the middle of summer, on the plateau meadow above 3000 meters above sea level, the adult bat moth with a small body flower will lay thousands of insect eggs on the ground, after about a month of hatching, the moth eggs will become small insects, and then burrow into the loose and moist soil, absorb the nutrients of plant rhizomes, and gradually raise the body to be white and fat, and in the soil, there is a spherical Cordyceps fungus ascospores, after the larvae of the Cordyceps bat moth are attacked by this spores, they will drill into the shallow layer of the ground. The spores will grow in the larvae's body, and the larvae's internal organs will disappear little by little, and finally the larva will die with its head facing up and tail down.
2. The insect body will also become a shell full of mycelium, buried in the soil, this is the so-called "winter worm", after a whole winter, in the spring and summer of the second year, the mycelium will begin to grow again, from the head and mouth of the dead larvae will grow a purple-red grass, about 2-5cm high, the top is a pineapple-shaped sac shell, this is the so-called "summer grass", the larval shell and the grass will form a complete "Cordyceps sinensis".
2. How to identify Cordyceps.
1. Identification of traits.
1) Cordyceps sinensis insect body resembles silkworm, 3-5cm long, thick, dark yellow to yellow-brown appearance, 20-30 rings, thin rings near the head, reddish-brown head, tail like silkworm tail, brittle, easy to break, slightly flat section, light yellowish white.
2) 8 pairs of feet, 3 pairs near the head, 4 pairs near the middle, 1 pair near the tail, 4 pairs in the middle are obvious, the subbase is dark brown to tan, generally longer than the body of the insect, slender cylindrical, 4-7cm long, about diameter, there is a smooth sterile tip at the tip, there are fine longitudinal wrinkles on the surface, the upper part is slightly expanded, the texture is flexible, the section is white, the air is slightly fishy, and the taste is slightly bitter.
2. Microscopic identification.
1) Transverse section of the head of the substellation: there are many linear ascospores in the ascomycete shell, and 2-8 linear ascospores in each ascomycete; 1 row of ascomycetes around the sub-base, the ascomycetes are ovate to elliptic, and the lower half is buried in the concave sub-base; sterile apical (ascent of the subtraction without ascomycete shell); The subsid** is full of hyphae with fissures in between.
2) Cross-section of the insect body: surrounded by the shell of the insect body, irregular shape, on which there are short and different sharp hairs and long hairs, some seem to be branched, and there are a large number of hyphae in the shell, and there are cracks in between.
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