Qhov zais cia ntawm cov dej ntshiab tshaj plaws ntawm Lake Baikal: cov kab mob

2024 Tus sau: Seth Attwood | [email protected]. Kawg hloov kho: 2023-12-16 16:06

Hauv nruab nrab ntawm lub pas dej, dej tuaj yeem haus dej haus yam tsis muaj boiling.

Cov kws tshawb fawb ntawm Irkutsk Limnological lub koom haum ntawm Siberian ceg ntawm Lavxias teb sab Academy ntawm Sciences tau daws qhov paub tsis meej ntawm qhov tshwj xeeb purity ntawm cov dej ntawm Lake Baikal. Nws hloov tawm hais tias lub ntuj ntxuav ntawm lub reservoir yog bacteriophage microorganisms - cov kab mob uas ua kom puas cov kab mob pathogenic.

Raws li "MK" Tus Kws Kho Mob ntawm Biological Sciences, Tus Thawj Saib Xyuas Kev Tshawb Fawb ntawm lub koom haum Valentin Dryukker, qhov kev xav tias cov yeeb ncuab ntuj ntawm cov kab mob, xws li E. coli lossis Staphylococcus aureus, nyob hauv Lake Baikal, tau muaj nyob rau lub sijhawm ntev. Txawm li cas los xij, cov kws tshawb fawb tsis muaj lub sijhawm los ua pov thawj qhov no thaum tsis muaj kev sib kis ntawm electron microscopes, uas ua rau nce ntawm 600 txhiab lub sijhawm (lub teeb pom kev zoo ib txwm muab qhov nce ntawm 2-3 txhiab zaus). Thaum tau txais cov cuab yeej muaj zog, lawv tuaj yeem pom cov tsiaj me tshaj plaws hauv dej ntawm Lake Baikal, ob peb nanometers loj (1 nanometer yog sib npaug li 10 txog 9 degrees ntawm ib 'meter').

Irkutsk microbiologists tau tshawb pom 9 ntawm 10 paub txog kev tshawb fawb, 4 hom tshiab ntxiv. Ntawm lawv muaj cov kab mob uas sawv tawm hauv qhov tshwj xeeb loj (ntaus lub sij hawm loj dua li cov kab mob bacteriophages), nrog rau cov ntawv. Piv txwv li, nws muab tawm hais tias nyob rau hauv Baikal muaj bacteriophages nyob rau hauv daim ntawv ntawm ib tug whirligig thiab txawm ib tug rauj. Txhua yam ntawm cov kab mob no yog ib qho tshuaj tua kab mob rau qee yam kab mob. Bacteriophages ntxeem tau cov kab mob tshwj xeeb, piv txwv li, E. coli, sib npaug, thiab nws tuag. Qhov kev tawm tsam nquag tshaj plaws yog tshwm sim hauv thaj tsam ntug dej hiav txwv ntawm lub pas dej, qhov chaw muaj kab mob muaj sia nyob, pub los ntawm cov dej khib nyiab hauv tsev. Nyob rau hauv nruab nrab ntawm lub pas dej Baikal, cov dej yog purified heev los ntawm bacteriophages uas koj muaj peev xwm haus nws tsis boil nws.

Ntawm yuav luag tag nrho cov kab mob bacteriophages pom, cov kws tshawb fawb tau pib "cov ntaub ntawv tus kheej" nrog cov lus piav qhia ntawm morphological thiab genetic zog. Nws tau xav tias yav tom ntej, bacteriophages yuav muaj peev xwm hloov tau cov tshuaj tua kab mob uas paub zoo rau txhua tus. Lawv qhov zoo dua yog tias lawv tsis ntaus tag nrho cov nroj tsuag ntawm lub cev ib zaug, tab sis hauv qee hom.