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( Hai-Fu Zheng ),( Fu-chang Huang ),( Bin Liu ),( Yuan-Yuan Shao ),( Pei-sheng Qin ) 한국균학회 2021 Mycobiology Vol.49 No.3
Two new species of Fulvifomes are described from specimens collected in rainforests of Nonggang Nature Reserve of southern China, based on morphological characteristics and molecular phylogenetic analysis of the internal transcribed spacer (ITS) and nuclear large subunit ribosomal DNA (nLSU) sequences. Fulvifomes nonggangensis sp. nov. is characterized by perennial, sessile and solitary basidiocarps, applanate pileus, small cystidioles of 9.9-15.4×2.9-3.5 lm, large pores of 5-6 per mm, a dimitic hyphal system, and broadly ellipsoid basidiospores of 4.3-5.3×3.3-4.2 lm. F. tubogeneratus sp. nov. is characterized by perennial, sessile, and imbricate basidiocarps, a duplex context, small pores of 7-8 per mm, a dimitic hyphal system, and ovoid to subglobose basidiospores of 5.72×5.00 lm.
Alterations of Amino Acid Level in Depressed Rat Brain
Pei Yang,Xuechun Li,Jian Ni,Jingchen Tian,Fu Jing,Changhai Qu,Longfei Lin,Hui Zhang 대한약리학회 2014 The Korean Journal of Physiology & Pharmacology Vol.18 No.5
Amino-acid neurotransmitter system dysfunction plays a major role in the pathophysiology ofdepression. Several studies have demonstrated the potential of amino acids as a source of neuro-specificbiomarkers could be used in future diagnosis of depression. Only partial amino acids such as glycineand asparagine were determined from certain parts of rats’ brain included hippocampi and cerebralcortex in previous studies. However, according to systematic biology, amino acids in different areaof brain are interacted and interrelated. Hence, the determination of 34 amino acids through entirerats’ brain was conducted in this study in order to demonstrate more possibilities for biomarkers ofdepression by discovering other potential amino acids in more areas of rats’ brain. As a result, 4 aminoacids (L-aspartic acid, L-glutamine, taurine and γ -amino-n-butyric acid) among 34 were typicallyidentified as potentially primary biomarkers of depression by data statistics. Meanwhile, anantidepressant called Fluoxetine was employed to verify other potential amino acids which were notidentified by data statistics. Eventually, we found L-α -amino-adipic acid could also become a newpotentially secondary biomarker of depression after drug validation. In conclusion, we suggested thatL-aspartic acid, L-glutamine, taurine, γ-amino-n-butyric acid and L-α-amino-adipic acid might becomepotential biomarkers for future diagnosis of depression and development of antidepressant.
Fu-Bao Zheng,Chang-Wen Zhang,Pei-Ji Wang,Hang-Xing Luan 한국물리학회 2013 Current Applied Physics Vol.13 No.4
Using full-potential linearized augmented plane wave (FLAPW) method, we investigated the effects of intrinsic vacancies on electronic and magnetic properties in graphene-like ZnO nanosheets. The results show that the oxygen vacancy (VO) has no influence on magnetism in ZnO nanosheet, whereas the Zn vacancy (VZn) lead to spin polarization of the nanostructures with a total magnetic moment of 2.0mB due to O-2p and Zn-3d hybridization. When the distance of two VZn defects increases to 6.499 A, the system shows an intriguing half-metallic character with 100% spin-polarized carriers due to O(2p)-Zn(3d)-O(2p) coupling chain between two VZn defects.
Amylosporus sulcatus sp. nov. (Russulales, Basidiomycota) from Southern China
( Fu-chang Huang ),( Bin Liu ),( Hao Wu ),( Pei-sheng Qin ),( Jin-feng Li ) 한국균학회 2018 Mycobiology Vol.46 No.4
Amylosporus sulcatus sp. nov. is described from Nonggang Nature Reserve, southern China, on the basis of morphological and molecular data. The morphological description and illustrations for the new species are provided. The species is characterized by pileate and stipitate basidiocarps. The pileus surface is obviously concentrically and radiately sulcate and tomentum, and the pore surface is snow white. Phylogenetic analyses based on sequences of the internal transcribed spacer and nuclear large subunit ribosomal DNA confirmed it to be a new species.
Pei Lin,Fu-Qing Wang,Chang-Tian Li,Zheng-Fei Yan 한국생물공학회 2020 Biotechnology and Bioprocess Engineering Vol.25 No.3
In this study, biosynthesis of silver nanoparticles (AgNPs) by using Eurotium cristatum, isolated from Fuzhuan brick-tea and its antibacterial activity has been demonstrated. AgNPs were characterized at 425 nm as maximum absorbance peak by ultraviolet-visible spectrophotometry. The images of transmission electron microscopy revealed that AgNPs are spherical shape with at 15-20 nm in size. The X-ray diffraction pattern corresponding to planes (111), (200), (220), (311), and (222) demonstrated the crystalline nature of AgNPs. Fourier transform infrared spectrum showed that functional groups involved in reduction of silver ions to metal nanoparticles. For antibacterial application, AgNPs showed antibacterial activity against Pseudomonas aeruginosa, Escherichia coli, Staphylococcus aureus, Candida albicans, and Bacillus subtilis. It also acted synergistically with various antibiotics to inhibit growth of pathogenic strains, which produced an effect greater than the sum of their individual effects. For neomycin with no resistance to C. albicans, it combined with AgNPs, which had significant synergistic effect against C. albicans, with maximum inhibitory zone at 20.9 mm, which was 2.5-fold greater than that of AgNPs alone (8.2 mm). Other antibiotics combined with AgNPs also existed similar synergistic effect. Therefore, AgNPssynthesized by E. cristatum could enhance antibacterial activity in combination with antibiotics against pathogenic strains through synergistic effects. It might provide a new strategy for treatment of resistant bacteria.
Fu, Qiang,Wang, Bai-Chen,Jin, Xiang,Li, Hong-Bing,Han, Pei,Wei, Kai-Hua,Zhang, Xue-Min,Zhu, Yu-Xian Korean Society for Biochemistry and Molecular Biol 2005 Journal of biochemistry and molecular biology Vol.38 No.6
Proteins accumulated in dry, stratified Arabidopsis seeds or young seedlings, totaled 1100 to 1300 depending on the time of sampling, were analyzed by using immobilized pH gradient 2-DE gel electrophoresis. The molecular identities of 437 polypeptides, encoded by 355 independent genes, were determined by MALDI-TOF or TOF-TOF mass spectrometry. In the sum, 293 were present at all stages and 95 were accumulated during the time of radicle protrusion while another 18 appeared in later stages. Further analysis showed that 226 of the identified polypeptides could be located in different metabolic pathways. Proteins involved in carbohydrate, energy and amino acid metabolism constituted to about 1/4, and those involved in metabolism of vitamins and cofactors constituted for about 3% of the total signal intensity in gels prepared from 72 h seedlings. Enzymes related to genetic information processing increased very quickly during early imbibition and reached highest level around 30 h of germination.
Pei Yang,Huiying Fu,Liying Liu,Liyong Ji,Lei Xu,Fei Xiao 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.5I
We found that the pure dye 4-(2-(3,3-dicyanomethylene-5,5-dimethyl-1-cyclohexylidene)vinyl) phenyl(1-naphthyl)phenylamine can form a solid-state thin film up to 31 nm in thickness by simple dip-coating. After electric poling, the molecular film was very well oriented along the poling field’s direction (ordering parameter = 0.36). The poled film gave a large resonant second-harmonic generation (SHG) signal ((2) = 591 pm/V when using 1064-nm laser light as the fundamental light) and non-resonant SHG ((2) = 232 pm/V when using 800-nm laser light as the fundamental light). The results show that such molecules can find applications in nonlinear photonic integrated circuits.