细菌的大小与形态Thesizeandmorphologyofbacteria讲解.pptx

细菌的大小与形态Thesizeandmorphologyofbacteria主讲老师：王利沙WeifangNursingVocationalCollege潍坊护理职业学院

01细菌的大小Thesizeofbacteria

细菌的大小Thesizeofbacteria1500个杆菌首尾相连总长度=1粒芝麻的长度总宽度=1根头发丝的宽度1500rodsconnectedend-to-endThetotallengthisequaltothelengthofonesesameseed.80rodsstandingshouldertoshoulder.80个杆菌肩并肩Thetotalwidthisthewidthofonehairstrand.个体微小Individualistiny微米（μm）Microns(μm)

02细菌的形态Themorphologyofbacteria

细菌的形态Themorphologyofbacteria杆形Rodshaped球形Spherical螺形螺菌球菌Cocci杆菌BacillusSpirillumSpiralshape

球菌Cocci双球菌细菌的形态Themorphologyofbacteria链球菌葡萄球菌四联球菌八叠球菌

球菌Cocci金黄色葡萄球菌Staphylococcusaureus肺炎链球菌Streptococcuspneumonia四联球菌Tetragonococcus细菌的形态Themorphologyofbacteria

杆菌Bacillus大肠杆菌E.coli炭疽芽胞杆菌Bacillusanthracis细菌的形态Themorphologyofbacteria杆菌种类很多，其长短粗细随种而异；多数形态呈直杆状。Therearemanytypesofbacteria,andtheirlength,thickness,andthicknessvarydependingonthespecies;Mostofthemhaveastraightrod-shapedshape.

杆菌Bacillus白喉棒状杆菌Corynebacteriumdiphtheriae细菌的形态Themorphologyofbacteria杆菌种类很多，其长短粗细随种而异；多数形态呈直杆状。有的杆菌末端膨大呈棒状；有的常呈分枝状排列，称为分枝杆菌。Therearemanytypesofbacteria,andtheirlength,thickness,andthicknessvarydependingonthespecies;Mostofthemhaveastraightrod-shapedshape.Somebacteriahaveswollenrod-shapedends;Someareoftenarrangedinabranchingpatternandarecalledmycobacteria.结核分枝杆菌MycobacteriumTuberculosis

螺菌Spirillum细菌的形态Themorphologyofbacteria螺形菌菌体弯曲，根据弯曲的不同分为两类：弧菌和螺菌Snailshapedbacteriahavecurvedbodies,whichcanbedividedintotwocategoriesbasedontheircurvature:VibrioandSnailshapedbacteria.小螺菌Spirillumminus霍乱弧菌Vibriocholerae

细菌的形态Themorphologyofbacteria细菌的形态可因外界理化因素如温度、药物等因素的影响而发生变化，在用显微镜观察时应引起注意。注意：Note：Themorphologyofbacteriacanchangeduetoexternalphysicalandchemicalfactorssuchastemperatureanddrugs,andattentionshouldbepaidwhenobservingunderamicroscope.

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