Duba tsatso na Kwayar cutar Bakteriya

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[[File:Microscopic view of germ theory.jpg|200px|right|thumb|Microscopic_view_of_germ_theory]]

'''Bacteria,''' guda daya: '''bakterium''' ) suna da yawa a ko'ina,  kwayoyin halittu ne  masu rai galibi suna kunshe da [[Tattanin halillta|kwayar halitta]] guda daya. Suna cikin  babban [[Domain (ilimin halitta)|yanki]] na [[Prokaryote|prokaryotic]] [[Microorganism|microorganisms]] . Yawancin girman  [[Micrometer|micrometers]] kadan a  a tsayi, ƙwayoyin cutar bakteriya cuta suna daga cikin sifofin rayuwa na farko da suka bayyana a [[duniya]], kuma suna nan a yawancin [[Wurin zama|wuraren zama]]. Bacteria suna zaune a cikin  ƙasa, ruwa, [[Ruwan zafi|maɓuɓɓugan zafi na acidi]], [[Sharar rediyo|sharar re]], da [[Deep biosphere|zurfin ɓawon]] [[Ƙunƙarar ƙasa|burodi na duniya]] . Kwayoyin cuta suna taka muhimmiyar rawa a matakai da yawa na sake zagayowar abinci mai gina jiki, ta hanyar sake amfani da abubuwan gina jiki da daidaituwar nitrogen acikin  [[Sararin Samaniya na Duniya|yanayi]] 

== Asalin kalma ==
Kalmar ''bakteriya'' ita ce jam'i na ''bacterium'' [[Neo-Latin]], wanda shine [[Latinization (adabi)|Latinization]] na [[Tsohon Girkanci|tsohuwar Girkanci]] βακτήριον ( ''baktḗrion'' ), <ref>"31. Ancient Life: Apex Chert Microfossils". ''www.lpi.usra.edu''. Retrieved 12 March 2022.</ref> [[Ragewa|ƙarancin]] βακτηρία ( ''baktēría'' ), ma'ana "ma'aikata, gwangwani] na farko", <ref>https://pubmed.ncbi.nlm.nih.gov/27541692</ref> wadanda za a gano sun kasance [[Bacillus (siffa)|masu siffar sanda]] . <ref>McCutcheon JP (October 2021). "The Genomics and Cell Biology of Host-Beneficial Intracellular Infections". ''Annual Review of Cell and Developmental Biology''. '''37''' (1): 115–142. doi:10.1146/annurev-cellbio-120219-024122. <nowiki>PMID 34242059</nowiki>. S2CID 235786110. Archived from the original on 7 July 2022. Retrieved 19 August 2022</ref> Kakannin kwayoyin cutar bakteriya kwayoyin cutane masu cell guda daya, wadanda sune [[Filayen rayuwa na farko da aka sani|farkon nau'in rayuwa]] da suka bayyana a Duniya, kimanin &nbsp;shekaru biliyan da suka gabata.{{Sfn|Hall|2008}} Kusan shekaru biliyan 3, yawancin kwayoyin halitta sun kasance ƙanananƙwayoyin cuta, kuma kwayoyin cuta na archaea sune manyan nau'o'in rayuwa.  <ref>Hall 2008, p. 145.</ref> <ref>βακτήριον. Liddell, Henry George; Scott, Robert; ''A Greek–English Lexicon'' at the Perseus Project.</ref> Ko da yake akwai [[Burbushin halittu|burbushin]] ƙwayoyin cuta, irin su [[Stromatolite|stromatolites]], rashin [[Ilimin Halitta (Biology)|ilimin halittarsu]] na musamman ya hana a yi amfani da su don bincika tarihin juyin halittar ƙwayoyin cuta, ko kuma zuwa  lokacin asalin wani nau'in kwayoyin cuta. Duk da haka, ana iya amfani da jerin kwayoyin halitta don sake gina [[Phylogenetics|wasu kwayoyin cutar]], kuma waɗannan nazarin sun nuna cewa kwayoyin cuta sun fara bambanta daga zuriyar archaeal / eukaryotic.<ref>Harper, Douglas. "bacteria". ''Online Etymology Dictionary''.</ref>

== Manazarta ==