红色毛癣菌孢子中预存储mRNA的功能

目的分析红色毛癣菌(Trichophyton rubrum)孢子中预存储mRNA的功能。方法通过分析560个孢子中预存储基因与NR和GO数据库中其他线性真菌基因的同源性,对这些基因的功能以及可能参与的生理过程进行探讨。结果在孢子中的560个基因中,有177个与烟曲霉、构巢曲霉、粗糙链孢菌和红色毛癣菌4类线性真菌基因有同源性,并发现一些可能参与孢子萌发的重要基因及相关的调控途径。结论为进一步研究红色毛癣菌孢子中预存储基因的作用以及孢子萌发的机理提供了依据。     

The improvement of the resistance to Candida Albicans and Trichophyton interdigitale of some cotton textile materials by treating with oxygen plasma and chitosan

This paper presents the improvement of the resistance to fungi of some cotton textile materials by treating in the manufacturing process with oxygen plasma and chitosan. Thus, after the weaving and preliminary finishing, the fabrics were cleaned in oxygen plasma atmosphere and after dyeing, have been treated with chitosan solution with concentrations of 1 or 5 g/l, in order to confer them antimicrobial properties. The antimicrobial tests were performed with two fungi: Candida albicans and Tricophyton interdigitale. The obtained antimicrobial effect was considerably higher compared to that of the raw fabrics. The colour resistance of dyed fabrics was not significantly influenced by applying the treatment-based chitosan.     

Synthesis,characterization, thermal behavior,and antifungal activity of La（III） complexes with cinnamates and 4-methoxyphenylacetate

In this study a series of trivalent lanthanum complexes with 4-（R）-cinnamate （4-Rcinn, R=H（1）, MeO（2）, Cl（3）） and 4-methoxyphenylacetate ligands （4） were prepared and their antifungal activity against Candida albicans, Aspergillus niger and Trichophyton mentagrophytes were examined. Compounds 1-4 were synthesized by a metathesis reaction and fully characterized by elemental analysis, IR, 1H and 13C NMR spectroscopy, fluorescence spectra, thermogravimetry （TG）, derivative thermogravimetry （DTG）, differential scanning calorimetry （DSC） and X-ray diffraction powder patterns. In emission studies, it was observed that lu-minescence intensity was enhanced in the presence of lanthanide ion. The results of X-ray diffraction patterns indicated that all com-plexes studied exhibited crystalline structure. Thermal behavior by TG, DTG, and DSC studies permitted to estimating the hydration degree of the compounds and showed the formation of decomposition products like lanthanum oxide. Determined by antifungal stud-ies, lanthanum complexes 1-4 demonstrated antifungal activity toward all pathogenic fungal strains tested. Compounds 2 and 4 showed significant growth inhibition for A. niger and C. albicans, respectively.     

Application of persulfate in low-temperature atmospheric-pressure plasma jet for enhanced treatment of onychomycosis

Fungal infection of human nails,or onychomycosis,affects 10%of the world's adult population,but current therapies have various drawbacks.In this work,we employed a self-made low-temperature plasma(LTP)device,namely,an atmospheric-pressure plasma jet(APPJ)device to treat the nails infected with Trichophyton rubrum(T.rubrum)with the aid of persulfate solution.We found that persulfate solution had a promoting effect on plasma treatment of onychomycosis.With addition of sodium persulfate,the APPJ therapy could cure onychomycosis after several times of treatment.As such,this work has demonstrated a novel and effective approach which makes good use of LTP technique in the treatment of onychomycosis.     

天然中草药抗菌袜的制备及其抗真菌效果测试与比较

以天然中草药丁香、鱼腥草提取物为抗菌成分,壳聚糖为交联剂,通过整理工艺制备天然抗菌袜,并对制备的天然抗菌袜和几种采用不同抗菌原理的市售抗菌保健袜的抗真菌性能进行检测和比较,为进一步发展和完善功能性纺织品的抗菌整理提供实践依据。     

Antifungal Activity of the Essential oil of Thymus vulgaris L. and Thymol on Experimentally Induced Dermatomycoses

The in vivo evaluation of the toxicological and antifungal activity of the essential oil of Thymus vulgaris L. and its main component thymol was made on 2-month-old male Wistar rats. We examined the therapeutic potency against experimentally induced dermatomycoses in rats, using the most frequent dermatomycetes, Trichophyton mentagrophytes, T. rubrum, and T. tonsurans. The therapeutic efficacy of a 1% solution of the essential oil of Thymus vulgaris and thymol as well as the commercial preparation bifonazole was evaluated. During the 37-day observation period the oil-treated animals were cured.     

紫色毛癣菌感染人头发的超微形态电镜观察

应用扫描电镜和透射电镜对紫色毛癣菌感染的头发进行超微形态结构的观察,了解紫色毛癣菌在感染头发后自身形态的变化以及对发干的破坏程度。结果表明：紫色毛癣菌在侵入人头发后主要寄生于毛干的毛皮质层,并呈现出不同的形态学特征。在感染初期紫色毛癣菌以菌丝样或竹节菌丝的形态寄生于毛干中,随着头发的生长菌丝逐渐断裂形成单个的圆形或柱状孢子,同时在形态转化的过程中,紫色毛癣菌对头发的破坏也逐渐加重。这提示紫色毛癣菌在感染人体头发后以有分隔的菌丝和竹节样孢子形式进行寄生繁殖。还观察到紫色毛癣菌形态转化时呈现自身菌体超微结构的改变,为进一步研究该菌的生物学特性提供了依据。