1.Research progress on chemical constituents and pharmacological effects of Ganoderma lucidum spore oil.
China Journal of Chinese Materia Medica 2025;50(8):2071-2079
Originating from sporoderm-broken Ganoderma lucidum spores, Ganoderma lucidum spore oil(GLSO) is prepared by supercritical fluid extraction. Chemical composition studies show that GLSO mainly contains nonpolar substances, such as fatty acids, triglycerides, and steroids. GLSO is also famous for its edible and medical functions. It possesses various pharmacological effects, including anti-tumor, immune boosting, anti-fatigue, antioxidant property, and organ protection. This paper systematically summarizes the chemical constituents and pharmacological effects of GLSO, aiming to provide a reference for its future research and application.
Reishi/chemistry*
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Spores, Fungal/chemistry*
;
Humans
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Animals
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Oils/isolation & purification*
;
Drugs, Chinese Herbal/isolation & purification*
2.Neuroprotective and antidiabetic lanostane-type triterpenoids from the fruiting bodies of Ganoderma theaecolum.
Jiaocen GUO ; Li YANG ; Luting DAI ; Qingyun MA ; Jiaoyang YAN ; Qingyi XIE ; Yougen WU ; Haofu DAI ; Youxing ZHAO
Chinese Journal of Natural Medicines (English Ed.) 2025;23(2):245-256
Eight previously undescribed lanostane triterpenoids, including five nortriterpenoids with 26 carbons, ganothenoids A-E (1-5), and three lanostanoids, ganothenoids F-H (6-8), along with 24 known ones (9-32), were isolated from the fruiting bodies of Ganodrma theaecolum. The structures of the novel compounds were elucidated using comprehensive spectroscopic methods, including electronic circular dichroism (ECD) and nuclear magnetic resonance (NMR) calculations. Compounds 1-32 were assessed for their neuroprotective effects against H2O2-induced damage in human neuroblastoma SH-SY5Y cells, as well as their inhibitory activities against protein tyrosine phosphatase 1B (PTP1B) and α-glucosidase. Compound 4 demonstrated the most potent neuroprotective activity against H2O2-induced oxidative stress by suppressing G0/G1 phase cell cycle arrest, reducing reactive oxygen species (ROS) levels, and inhibiting cell apoptosis through modulation of B-cell lymphoma 2 protein (Bcl-2) and Bcl-2 associated X-protein (Bax) protein expression. Compounds 26, 12, and 28 exhibited PTP1B inhibitory activities with IC50 values ranging from 13.92 to 56.94 μmol·L-1, while compound 12 alone displayed significant inhibitory effects on α-glucosidase with an IC50 value of 43.56 μmol·L-1. Additionally, enzyme kinetic analyses and molecular docking simulations were conducted for compounds 26 and 12 with PTP1B and α-glucosidase, respectively.
Humans
;
Fruiting Bodies, Fungal/chemistry*
;
Triterpenes/isolation & purification*
;
Neuroprotective Agents/isolation & purification*
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Protein Tyrosine Phosphatase, Non-Receptor Type 1/metabolism*
;
Ganoderma/chemistry*
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Apoptosis/drug effects*
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Hypoglycemic Agents/isolation & purification*
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Molecular Structure
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alpha-Glucosidases/metabolism*
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Cell Line, Tumor
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Reactive Oxygen Species/metabolism*
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Oxidative Stress/drug effects*
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Hydrogen Peroxide/toxicity*
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Molecular Docking Simulation
3.Effect of VvLaeA on the growth and development of Beauveria bassiana.
Chinese Journal of Biotechnology 2023;39(2):685-694
It is unclear how VvLaeA functions in regulating the growth and development of Volvariella volvacea (Bull. ex. Fr.) Sing.. Firstly, bioinformatics analysis of VvLaeA was carried out in this study. Subsequently, the Vvgpd promoter and the open reading frame (ORF) fragment of VvlaeA were amplified and fused by polymerase chain reaction (PCR). The fusion fragment was cloned into the pK2 (bar) plasmid. The recombinant construct pK2(bar)-OEVvlaeA was transfected into Beauveria bassiana by Agrobacterium tumefaciens-mediated transformation. Finally, the growth and development of the transformants were examined. The results showed that VvLaeA shared a low homology with similar proteins in other fungi. Compared with the wild type, the colony diameter of the transformant was significantly increased. However, the pigment deposition, conidial yields and germination rates were significantly decreased. The overexpression strains were more sensitive to stresses than that of the wild type. Further studies showed the conidial cell wall properties of the transformants were altered, and the expressions of genes related to the conidial development were significantly down-regulated. Collectively, VvLaeA increased the growth rate of B. bassiana strains and negatively regulated the pigmentation and conidial development, which shed a light for the functional identification of straw mushroom genes.
Beauveria/metabolism*
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Spores, Fungal
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Growth and Development
4.Lean strategy for data mining and continuous improvement of Chinese pharmaceutical process: a case study of sporoderm-removal Ganoderma lucidum spore powder.
Yi ZHONG ; Xiao-Hui FAN ; Zhen-Hao LI
China Journal of Chinese Materia Medica 2023;48(3):829-834
In the digital transformation of Chinese pharmaceutical industry, how to efficiently govern and analyze industrial data and excavate the valuable information contained therein to guide the production of drug products has always been a research hotspot and application difficulty. Generally, the Chinese pharmaceutical technique is relatively extensive, and the consistency of drug quality needs to be improved. To address this problem, we proposed an optimization method combining advanced calculation tools(e.g., Bayesian network, convolutional neural network, and Pareto multi-objective optimization algorithm) with lean six sigma tools(e.g., Shewhart control chart and process performance index) to dig deeply into historical industrial data and guide the continuous improvement of pharmaceutical processes. Further, we employed this strategy to optimize the manufacturing process of sporoderm-removal Ganoderma lucidum spore powder. After optimization, we preliminarily obtained the possible interval combination of critical parameters to ensure the P_(pk) values of the critical quality properties including moisture, fineness, crude polysaccharide, and total triterpenes of the sporoderm-removal G. lucidum spore powder to be no less than 1.33. The results indicate that the proposed strategy has an industrial application value.
Bayes Theorem
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Data Mining
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Drug Industry
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Powders
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Reishi
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Spores, Fungal
5.Identification, biological characterization, and fungicide screening of pathogens causing leaf spot of Belamcanda chinensis.
Ya-Wen YANG ; Qiao-Huan CHEN ; Jia ZHOU ; Bi-Sheng HUANG ; Yu-Huan MIAO ; Da-Hui LIU
China Journal of Chinese Materia Medica 2022;47(22):6042-6049
The leaf spot of Belamcanda chinensis often appears in May to June and spreads rapidly during the flowering stage(July to September) in the cultivation fields, seriously affecting the yield and quality of B. chinensis. To identify and characterize the pathogens of the leaf spot, we isolated two species of Alternaria, identified them according to Koch's postulates, and tested their pathogenicity and biological characteristics. Furthermore, we determined the inhibitory effects of 6 chemical fungicides, 1 plant fungicide, and 3 microbial fungicides on the pathogens by using mycelial growth rate and plate confrontation method to select the appropriate control agents. The results showed that the two pathogens causing B. chinensis leaf spot were Alternaria tenuissima and A. alternata. The conidia of A. tenuissima often formed long chains with no or a few branches, while those of A. alternata often formed short branched chains. The optimum growth temperature of both A. tenuissima and A. alternata was 25 ℃. The two pathogens grew well in alkaline environment. The indoor fungicide screening experiments showed that 40% flusilazole had good inhibitory effects on the two pathogens, with the EC_(50) values of 12.42 mg·L~(-1) and 12.78 mg·L~(-1) for A. tenuissima and A. alternata, respectively. The results of this study provide a theoretical basis for the subsequent theoretical research and field control of B. chinensis leaf spot.
Fungicides, Industrial/pharmacology*
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Research
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Iris Plant
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Spores, Fungal
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Mycelium
6.Isolation, identification, and pathogenicity research of brown rot pathogens from Gastrodia elata.
Xin TANG ; Jin-Qiang ZHANG ; Wei-Ke JIANG ; Qing-Song YUAN ; Yan-Hong WANG ; Lan-Ping GUO ; Yang YANG ; Ye YANG ; Tao ZHOU
China Journal of Chinese Materia Medica 2022;47(9):2288-2295
Brown rot is a common disease in the cultivation and production of Gastrodia elata, but its pathogens have not been fully revealed. In this study, the pathogenic fungi were isolated and purified from tubers of 77 G. elata samples with brown rot. Pathogens were identified by the pathogenicity test and morphological and molecular identification. The pathogenicity of each pathogen and its inhibitory effects on Armillaria gallica were compared. The results showed that 119 strains of fungi were isolated from tubers of G. elata infected with brown rot. Among them, the frequency of separation of Ilyonectria fungi was as high as 42.01%. The pathogenicity test showed that the pathogenicity characteristics of six strains of fungi were consistent with the natural symptoms of brown rot in G. elata. The morphological and molecular identification results showed that the six strains belonged to I. cyclaminicola and I. robusta in the Nectriaceae family of Sordariomycetes class, respectively. Both types of fungi could produce pigments, conidia, and chlamycospore, and the growth rate of I. cyclaminicola was significantly higher than that of I. robusta. The comparison of pathogenicity showed that the spots formed by I. cyclaminicola inoculation were significantly larger than those of I. robusta inoculation, suggesting I. cyclaminicola was superior to I. robusta in pathogenicity. The results of confrontation culture showed that I. cyclaminicola and I. robusta could signi-ficantly inhibit the germination and cordage growth of A. gallica. A. gallica also inhibited the growth of pathogens, and I. cyclaminicola was less inhibited as compared with I. robusta. The results of this study revealed for the first time that I. cyclaminicola and I. robusta were the pathogens responsible for G. elata brown rot.
Fungi
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Gastrodia
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Plant Tubers
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Spores, Fungal
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Virulence
7.Study on chemical constituents from fruiting bodies of Ganoderma calidophilum.
Ting-Ting ZHANG ; Jiao-Cen GUO ; Qing-Yun MA ; Fan-Dong KONG ; Li-Man ZHOU ; Qing-Yi XIE ; Hao-Fu DAI ; Zhi-Fang YU ; You-Xing ZHAO
China Journal of Chinese Materia Medica 2021;46(7):1783-1789
Chemical constituents were isolated and purified from fruiting bodies of Ganoderma calidophilum by various column chromatographic techniques, and their chemical structures were identified through combined analysis of physicochemical properties and spectral data. As a result, 11 compounds were isolated and identified as(24E)-lanosta-8,24-dien-3,11-dione-26-al(1), ganoderone A(2), 3-oxo-15α-acetoxy-lanosta-7,9(11), 24-trien-26-oleic acid(3),(23E)-27-nor-lanosta-8,23-diene-3,7,25-trione(4), ganodecanone B(5), ganoderic aldehyde A(6), 11β-hydroxy-lucidadiol(7), 3,4-dihydroxyacetophenone(8), methyl gentiate(9), ganoleucin C(10), ganotheaecolumol H(11). Among them, compound 1 is a new triterpenoid. The cytotoxic activities of all of the compounds against tumor cell lines were evaluated. The results showed that compounds 1, 3, 4 and 6 showed cytotoxic activity against BEL-7402, with IC_(50) values of 26.55, 11.35, 23.23, 18.66 μmol·L~(-1); compounds 1 and 3-6 showed cytotoxic activity against K562, with IC_(50) values of 5.79, 22.16, 12.16, 35.32, and 5.59 μmol·L~(-1), and compound 4 showed cytotoxic activity against A549, with IC_(50) value of 42.50 μmol·L~(-1).
Cell Line, Tumor
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Fruiting Bodies, Fungal
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Ganoderma
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Molecular Structure
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Triterpenes/pharmacology*
8.Efficacy of Diphenyleneiodonium Chloride (DPIC) Against Diverse Plant Pathogens
Boknam JUNG ; Taiying LI ; Sungyeon JI ; Jungkwan LEE
Mycobiology 2019;47(1):105-111
Many of the fungicides and antibiotics currently available against plant pathogens are of limited use due to the emergence of resistant strains. In this study, we examined the effects of diphenyleneiodonium chloride (DPIC), an inhibitor of the superoxide producing enzyme NADPH oxidase, against fungal and bacterial plant pathogens. We found that DPIC inhibits fungal spore germination and bacterial cell proliferation. In addition, we demonstrated the potent antibacterial activity of DPIC using rice heads infected with the bacterial pathogen Burkholderia glumae which causes bacterial panicle blight (BPB). We found that treatment with DPIC reduced BPB when applied during the initial flowering stage of the rice heads. These results suggest that DPIC could serve as a new and useful antimicrobial agent in agriculture.
Agriculture
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Anti-Bacterial Agents
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Burkholderia
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Cell Proliferation
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Flowers
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Germination
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Head
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NADPH Oxidase
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Plants
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Spores, Fungal
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Superoxides
9.Alternaria yunnanensis sp. nov., a New Alternaria Species Causing Foliage Spot of Rubber Tree in China
Zhi Ying CAI ; Yi Xian LIU ; Yu Ping SHI ; Li Ming DAI ; Lan Lan LI ; Hong Jun MU ; Mei Lin LV ; Xiao Yong LIU
Mycobiology 2019;47(1):66-75
A new species of Alternaria causing leaf spots on the rubber tree (Hevea brasiliensis) in Yunnan, China, was isolated, examined, and illustrated. Morphologically, it belongs to the section Porri of Alternaria, which produces relatively large conidia and a simple or branched, filamentous long beak. It is, however, characterized by conidiophores gradually enlarging near the apex into a clavate conidiogenous cell and long ellipsoid to obclavate, smooth-walled conidia with a long filamentous beak. Molecular phylogenetic analyses based on ITS rDNA, GAPDH, and TEF1-alpha sequences demonstrate that the phytopathogen falls in the clade of the section Porri, being most closely related to A. sidae, A. sennae, A. deseriticola, A. cyamopsidis, A. rostellata, A. nitrimali, A. crassa, and A. thunbergiae.
Acanthaceae
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Accidental Falls
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Alternaria
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Animals
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Ascomycota
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Beak
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China
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Classification
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DNA, Ribosomal
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Hevea
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Rubber
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Spores, Fungal
10.Cladophialophora lanosa sp. nov., a New Species Isolated from Soil
Kallol DAS ; Seung Yeol LEE ; Hee Young JUNG
Mycobiology 2019;47(2):173-179
Cladophialophora is characterized by simple hyphomycetes with brown hyphae that give rise to branched chains of pale brown conidia and shows affinities with the Herpotrichiellaceae. A fungal strain belonging to the genus Cladophialophora was isolated from soil in Daegu, Korea. This strain produces numerous greenish to dark black lanose aerial mycelia with hair like structures. It is morphological similar to C. chaetospira, C. inabaensis, and C. multiseptata; however, the conidiophores and conidia sizes of the newly isolated strain (KNU16-032) are clearly different from them. The novelty of the strain was also confirmed based on phylogenetic analysis using the data sets of the internal transcribed spacer region of and the partial sequence of 28S ribosomal DNA region along with the cultural characteristics. Because morphological observations and phylogenetic analysis indicated that the strain is distinct from previously known Cladophialophora species, we propose this species as a new species Cladophialophora lanosa sp. nov., and provide the detailed descriptions in this study.
Cultural Characteristics
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Daegu
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Dataset
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DNA, Ribosomal
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Hair
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Hyphae
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Korea
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Mitosporic Fungi
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Soil
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Spores, Fungal

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