Guizhou Agricultural Sciences 

About: Guizhou Agricultural Sciences is an academic journal. The journal publishes majorly in the area(s): Population & Germination. It has an ISSN identifier of 1001-3601. Over the lifetime, 777 publications have been published receiving 1078 citations.

Effects of Different Solid Culture Condition on Fruit Body and Cordycepin Output of Cordyceps militaris

Abstract: The solid media with different pH value and rice grain size were used in the fermentation of Cordyceps militaris to study the effects on the fruit body and cordycepin outputThe results show that the maximum fruit body yield and cordycepin output(4844g/bottle) is obtained on the medium with pH 55～60 and pH65 respectively,the fruit body yield reduces with decrease of rice grain size and the cordycepin content in the fruit body reduces with increase of rice grain sizeThe maximum fruit body yield(167g/bottle) is obtained on the medium with whole rice grains and the maximum cordycepin content in the fruit body(187%) and cordycepin output(5246mg/bottle) are obtained the medium with 40 and 10 mesh of rice grain size(1∶1,M/M)

Investigation on Microcycle Conidiation of Ascospores and Conidiogenous Structures of Anamorph of Cordyceps sinensis

Abstract: Fresh specimens of Cordyceps sinensis collected in Baima Mountains and Renzhi Mountains, Deqin,Yunnan province were studied It was found that conidiogenous structures of microcycle conidiation of ascospores were similar to those of Hirsutella sinensis H sinensis was considered to be the anamorph of Cordyceps sinensis Synnematium sinensis was treated as a synonym of Hirsutella sinensis

Isolation of Jatrorrhizine and Epiberberine in Coptis chinensis and Their in vitro Hypoglycemic Effect

Abstract: Jatrorrhizine and epiberberine in C.chinensis were isolated using polyamide column and their effects on glucose consumption and proliferation of HepG2 cell were determined to enhance the utilization rate of C.chinensis and provide the physical basis for research of other pharmacology activities of jatrorrhizine and epiberberine.The results showed that polyamide column had good isolation effect for jatrorrhizine and epiberberine due to hydrogen bond adsorption and reversed phase chromatography effect.All the four kinds of alkaloids had certain effects on glycometabolism.The capacities of glucose consumption showed in decreasing sequence as berberinecoptisinejatrorrhizineepiberberine.5 mg/L berberine had significant inhibition effect on cell proliferation.

The Toxicity Effect of Cantharidin on Six Pests

Abstract: Six pests were treated by cantharidin with different patters to study the insecticidal effect.The results show that cantharidin has the contact activity agaist all tested pests and the stomach activity agaist some pests,but no systemic activity and fumigant actiivity.Mukaria pallipes was the most sensitive to cantharidin,and the LD50 value was 0.00331 μg/♀.In the next place,The LD50 of Nilaparvata lugens,Bambusiphaga furca,Plutella Xylosella and Sogatella furcifera treated by cantharidin after 24h was 0.00915 μg/♀,0.01001 μg/♀,0.01830 μg/head and 0.01896 μg/♀ respectively.The 3rd instar larva was the most insensitive to cantharidin,and the LD50 value was 0.9005 μg/head.