Rashin jin daɗi

Snotite, kuma snoticle, wani nau'i ne na ƙananan ƙwayoyin cuta na kwayoyin extremophilic masu cell guda ɗaya waɗanda ke rataye daga bango da rufin kogo kuma suna kama da ƙananan stalactites, amma suna da daidaito na hanci . A cikin Frasassi Caves a Italiya, fiye da 70% na sel a cikin Snotite an gano su a matsayin Acidthiobacillus thiooxidans, tare da ƙananan mutane ciki har da archaeon a cikin 'G-plasma' wanda ba a horar da shi ba na Thermoplasmatales (> 15%) da kwayoyin cuta a cikin dangin Acididimicrobiaceae (> 5%). 

Kwayoyin cuta suna samun kuzari daga chemosynthesis na mahaɗan sulfur na volcanic ciki har da H <sub id="mwIA">2</sub> S da ruwan dumi da ke digowa daga sama, suna samar da sulfuric acid . Saboda wannan, kayan sharar su suna da acidic sosai (masu kusanci pH=0), tare da kamannin kaddarorin ga acid ɗin baturi .  Masu bincike a Jami'ar Texas sun nuna cewa wannan sulfuric acid na iya zama mafi mahimmancin dalilin samuwar kogo fiye da bayanin da aka saba bayarwa na carbonic acid da aka samu daga carbon dioxide da aka narkar da cikin ruwa. 

Snotites sun kawo hankalin masu bincike Diana Northup da Penny Boston suna nazarin su (da sauran kwayoyin halitta) a cikin wani kogon sulfur mai guba mai suna Cueva de Villa Luz ( Kogon Gidan Haske ), a Tabasco, Mexico . Jim Pisarowicz ne ya fara gano Snotites a cikin wannan kogon a cikin 1986, wanda kuma ya kirkiro kalmar. Michael Ray Taylor, Dark Life: Martian Nanobacteria, Rock-eating Cave Bugs, and Other Extreme Organisms of Inner Earth and Outer Space, pp. 56–57, Simon and Schuster, 1999 .

Jerin abubuwan al'ajabi na tsarin hasken rana na BBC ya ga Farfesa Brian Cox yana nazarin snotites kuma ya nuna cewa idan akwai rayuwa a duniyar Mars, yana iya zama kamar dadadden tarihi kuma yana ɓoye a ƙarƙashin saman duniyar ja .

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