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1、稀有放線菌的分離與培養(yǎng)報告人:張曉敏報告內(nèi)容分離培養(yǎng)基的選擇小單孢菌形態(tài)與生理生化特征擬諾卡氏菌形態(tài)與生理生化特征小單孢菌、擬諾卡氏菌與鏈霉菌區(qū)別分離培養(yǎng)基的選擇淀粉-酪蛋白硝酸鹽瓊脂培養(yǎng)基溶膠幾丁質(zhì)瓊脂培養(yǎng)基甘露醇-利福平瓊脂培養(yǎng)基淀粉-酪蛋白硝酸鹽瓊脂培養(yǎng)基starch-caseinnitrateagar:starch10g,sodiumcaseinate0.3g,KNO32g,agar15g,PH7.0-7.4.37μgnovobiocin,223μgmycostatin30℃培養(yǎng)21天Micromonosporachaiyaphumensissp.novMicrom
2、onosporaeburneasp.nov基礎(chǔ)培養(yǎng)基:K2HPO40.7g,KH2PO40.3g,MgSO4·7H2O0.5g,F(xiàn)eSO4·7H2O0.01g,ZnSO40.001g,瓊脂10克,蒸餾水1.0L.PH7.0121℃蒸汽滅菌20min,每100mL加20mL膠體幾丁質(zhì)懸浮液和5mg放線菌酮溶膠幾丁質(zhì)瓊脂培養(yǎng)基甘露醇-利福平瓊脂培養(yǎng)基mannitol-rifampicinagar:甘露醇10g,酵母提取物7g,酪蛋白水解物2g,蛋白胨1g,NaCl1g,CaCO30.2g,制霉菌素100mg,利福平5mg27℃培養(yǎng)6周Nocardiaacidivoran返回Mi
3、cromonosporagyrB基因序列分析和DNA–DNA雜交15species:Micromonosporaaurantiaca,Micromonosporacarbonacea,Micromonosporachalcea,M.chersina,Micromonosporacoerulea,Micromonosporaechinospora,Micromonosporagallica,Micromonosporahalophytica,Micromonosporainositola,M.matsumotoense,Micromonosporanigra,M.olivas
4、terospora,Micromonosporapallida,MicromonosporapurpureochromogenesandM.rosaria.小單孢菌形態(tài)與生理生化特征Aerobic,Gram-positive,mesophilic,non-motileactinomycetewell-developedandbranchedsubstratehyphae.Aerialmyceliumwasabsent.Sporechainswereabsent.Mycolicacidswereabsent.Acyltypeofcellwallmuramicacidisgly
5、colyl.Fatty-acidtype:3b.Thepredominantmenaquinone:MK-9(H4)、MK-9(H4H6H8)Characteristicwhole-cellsugarsarexyloseandarabinose.Phospholipids:P-II型.Cell-wallpeptidoglycan:CW-II(glutamicacid,alanineandmeso-diaminopimelicacid).DNAG+C(mol%):71%-73%.>well-developedandbranchedsubstratehyphae.>Aerial
6、myceliumwasabsent.>Atmaturity,sporesweresphericaltooval,appearedtoberoughandwerenon-motile(Fig.1).>colourofthevegetativemyceliumonISP2mediumisorange,turningtogreyishblackorblackuponsporulation.>growthatpH4-8and25-30℃,nogrowthabove45℃>Brown,diffusiblepigment>positivefortheutilizationofL-ara
7、binose,D-fructose,D-galactose,D-glucose,lactose,melibiose,salicinandD-xylose.>negativefornitratereductionandtheutilizationofD-mannitolandrhamnose.Micromonosporachaiyaphumensis>Single,non-motile,sphericalspores(0.6–0.9mm)wereformedonsubstratehyphae.>Aerialmycel