細(xì)菌的大小與形態(tài)Thesizeandmorphologyofbacteria主講老師：王利沙WeifangNursingVocationalCollege濰坊護(hù)理職業(yè)學(xué)院01細(xì)菌的大小Thesizeofbacteria細(xì)菌的大小Thesizeofbacteria1500個桿菌首尾相連總長度=1粒芝麻的長度總寬度=1根頭發(fā)絲的寬度1500rodsconnectedend-to-endThetotallengthisequaltothelengthofonesesameseed.80rodsstandingshouldertoshoulder.80個桿菌肩并肩Thetotalwidthisthewidthofonehairstrand.個體微小Individualistiny微米（μm）Microns(μm)02細(xì)菌的形態(tài)Themorphologyofbacteria細(xì)菌的形態(tài)Themorphologyofbacteria桿形Rodshaped球形Spherical螺形螺菌球菌Cocci桿菌BacillusSpirillumSpiralshape球菌

Cocci雙球菌細(xì)菌的形態(tài)Themorphologyofbacteria鏈球菌葡萄球菌四聯(lián)球菌八疊球菌球菌

Cocci金黃色葡萄球菌Staphylococcusaureus肺炎鏈球菌Streptococcuspneumonia四聯(lián)球菌Tetragonococcus細(xì)菌的形態(tài)Themorphologyofbacteria桿菌

Bacillus大腸桿菌E.coli炭疽芽胞桿菌Bacillusanthracis細(xì)菌的形態(tài)Themorphologyofbacteria桿菌種類很多，其長短粗細(xì)隨種而異；多數(shù)形態(tài)呈直桿狀。Therearemanytypesofbacteria,andtheirlength,thickness,andthicknessvarydependingonthespecies;Mostofthemhaveastraightrod-shapedshape.桿菌

Bacillus白喉棒狀桿菌Corynebacteriumdiphtheriae細(xì)菌的形態(tài)Themorphologyofbacteria桿菌種類很多，其長短粗細(xì)隨種而異；多數(shù)形態(tài)呈直桿狀。有的桿菌末端膨大呈棒狀；有的常呈分枝狀排列，稱為分枝桿菌。Therearemanytypesofbacteria,andtheirlength,thickness,andthicknessvarydependingonthespecies;Mostofthemhaveastraightrod-shapedshape.Somebacteriahaveswollenrod-shapedends;Someareoftenarrangedinabranchingpatternandarecalledmycobacteria.結(jié)核分枝桿菌MycobacteriumTuberculosis螺菌

Spirillum細(xì)菌的形態(tài)Themorphologyofbacteria螺形菌菌體彎曲，根據(jù)彎曲的不同分為兩類：弧菌和螺菌Snailshapedbacteriahavecurvedbodies,whichcanbedividedintotwocategoriesbasedontheircurvature:VibrioandSnailshapedbacteria.小螺菌Spirillumminus霍亂弧菌Vibriocholerae

細(xì)菌的形態(tài)Themorphologyofbacteria細(xì)菌的形態(tài)可因外界理化因素如溫度、藥物等因素的影響而發(fā)生變化，在用顯微鏡觀察時應(yīng)引起注意。注意：Note：Themorphologyofbacteriacanchangeduetoexternalphysicalandchemicalfactorssuchastemperatu