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2022-10-09 08:29:15       丑的别致

分枝杆菌属(Mycobacterium)隶属于细菌域,放线菌门,放线菌纲,放线菌亚纲,放线菌目,棒杆菌亚目,分枝杆菌科。目前属内有150个种和亚种。临床上常将分枝杆菌分为结核分枝杆菌(M.tuberc­ulosis)、非结核分枝杆菌(nontuberculosis mycobact­eria,NTM)、麻风分枝杆菌(M.leprae)和腐物寄生性分枝杆菌。本属DNA(G + C)含量为62~70mol%。代表菌种为结核分枝杆菌。 第9版《伯杰系统细菌学手册》根据细菌的生长速度将本属细菌分为三类,即缓慢生长分枝杆菌、快速生长分枝杆菌和不能培养分枝杆菌。缓慢生长分枝杆菌是指...

2022-10-09 07:34:41       huishouzhan

PI: Prof. Dr. Michael PesterPyrite, better known as fool’s gold, is the most abundant iron-sulfur mineral in sediments. Over geological times, its burial in sediments controlled oxygen levels in the atmosphere and sulfate concentrations in seawater. The conversion of iron sulfide and hyd...


PI: Dr. Stefan SpringIn the frame of a DFG-funded project and in cooperation with the Geobiology Division of the University of Göttingen, an expedition to the saline lakes of Christmas Island (Republic of Kiribati, Central Pacific) took place in March 2011. Some of the saline lakes of th...

2022-10-08 08:13:31       丑的别致

荧光假单胞菌和恶臭假单胞菌有端极丛毛菌0~8根不等,多数3根以上,可与很少超过3根的铜绿假单胞菌鉴别。最适温度为25~30℃,在37℃或42℃不生长而能于4℃生长(但在工作中发现,该菌在35℃常常可以生长)。一般而言,因为受生长温度的影响,该菌分离率较低。二者均可产生荧光素,但不产生绿脓素。菌落无鉴别特征,常产生强烈的气味,二者的区别是:荧光假单胞菌能液化明胶,大多数能水解卵磷脂(蛋黄反应),恶臭假单胞菌则否。 

2022-10-08 08:30:20       huishouzhan

PI: Prof. Dr. Michael PesterPyrite, better known as fool’s gold, is the most abundant iron-sulfur mineral in sediments. Over geological times, its burial in sediments controlled oxygen levels in the atmosphere and sulfate concentrations in seawater. The conversion of iron sulfide and hyd...

2022-09-30 06:52:03       zhimahu

一、菌名  Proteus mirabilis二、分類地位  Family:腸桿菌(Enterobacteriaceae)         Genus:變形桿菌屬(Proteus)  為一種革蘭氏陰性菌,兼性厭氧。1.命名沿革:        由Hauser於1885年提出,之所以將此菌命名為Proteus,乃是因該屬菌有一種獨特現象-swarm,當proteus進行swarm的過程中,菌的型態會由短且少的鞭毛,轉變為長且多的鞭毛型態,由於這種型態上的改變,而使Hauser聯想到古...