Qhov sib txawv tseem ceeb ntawm cov kab mob phem thiab qhov kub ntxhov yog qhov phom sij tua kab mob thaum lub sij hawm txhua qhov kev kis kab mob vim lawv rov ua dua los ntawm lub voj voog lytic thaum temperate phages tsis tua cov kab mob tam sim tom qab kis kab mob vim lawv rov siv ob qho tib si lytic thiab lysogenic. cycles.
Phages lossis bacteriophages yog cov kab mob uas kis tau cov kab mob. Cov kab mob kis tau los ntawm ob lub tshuab ua lub voj voog lytic thiab lysogenic voj voog. Muaj ob hom phages tseem ceeb raws li cov txheej txheem ntawm kev kis kab mob thiab tua cov kab mob ntawm tus tswv: virulent phages thiab temperate phages. Virulent phages replicate ntawm lub voj voog lytic. Temperate phages replicate ntawm ob qho tib si lytic thiab lysogenic cycles. Virulen phages qhia txog kev hloov pauv dav dav, thiab lawv muaj peev xwm tua cov kab mob hauv tsev tom qab txhua lub voj voog kab mob. Temperate viruses qhia tshwj xeeb kis tau tus mob, thiab lawv tsis tua tus kab mob tus tswv tsev tam sim ntawd tom qab kis kab mob. Lawv muaj peev xwm sib txuas cov kab mob DNA mus rau hauv cov kab mob chromosome thiab nyob twj ywm hauv theem prophage rau ntau tiam kab mob yam tsis tua cov kab mob.
Vim Phem yog dab tsi?
Y Virulent bacteriophage yog ib qho bacteriophage uas tua cov kab mob hauv tsev los ntawm lysis. Lawv ib txwm ua rau lub neej voj voog lytic, ua rau tuag ntawm tus tswv tsev kab mob tom qab txhua lub voj voog kab mob. Kev kis tus kab mob los ntawm tus kab mob bacteriophage thiab xa cov kab mob DNA mus rau lwm tus kab mob thaum kis tus kab mob thib ob yog hu ua kev hloov pauv dav dav. Yog li, kev hloov pauv dav dav tuaj yeem txhais tau tias yog kev hloov pauv ntawm cov kab mob DNA los ntawm ib tus kab mob mus rau lwm tus kab mob los ntawm cov kab mob bacteriophage thaum lub sij hawm lytic.
Daim duab 01: Virulent Phages – Lytic Cycle
Tom qab kis tau tus kab mob, phages muaj peev xwm tswj tau cov kab mob cell mechanisms rov ua dua lawv tus kheej DNA. Cov kab mob kuj muaj peev xwm degrading cov kab mob chromosome mus rau hauv me me thiab sai sai cuam tshuam ntawm cov kab mob ntawm phab ntsa rau kev tso tawm cov phages sib sau ua ke, ua rau cell tuag.
Dab tsi yog Temperate Phaj?
Temperate phages yog cov kab mob bacteriophages uas feem ntau pom lub voj voog lysogenic. Cov phages no tuaj yeem xaiv ntawm txoj hauv kev lytic thiab lysogenic. Temperate phages ua cov kev hloov pauv tshwj xeeb. Thaum temperate phages kis cov kab mob, lawv muaj peev xwm sib txuas cov kab mob DNA rau hauv cov kab mob chromosomes thiab nyob twj ywm rau hauv theem prophage rau ntau tiam kab mob. Yog li ntawd, temperate phages tsis lyse cov kab mob hlwb tam sim tom qab kis kab mob. Thaum cov kab mob genome replication, tus kab mob DNA yog raug rau replication thiab nkag mus rau cov kab mob tshiab thiab ciaj sia.
Daim duab 02: Temperate Phaages – Lysogenic Cycle
Temperate phages nyob twj ywm kom txog thaum induction. Thaum cov prophages raug ntxias los ntawm qee yam, tus kab mob DNA tshem tawm ntawm cov kab mob chromosome. Qee lub sij hawm thaum lub sij hawm detachment no, cov kab mob ntawm cov kab mob chromosomes tau detached thiab txuas mus rau prophage DNA. Vim yog induction, phages tau mus rau lytic voj voog tom qab. Viral genome replicates nrog cov kab mob DNA txuas nrog thiab cov pob hauv cov capsids tshiab thiab ua rau phages tshiab. Tshiab phages tso cov kab mob cell los ntawm lysis.
Dab tsi zoo sib xws ntawm Virulent thiab Temperate Phage?
- Virulent thiab temperate phages yog ob hom bacteriophages.
- Lawv kis kab mob thiab rov ua dua siv cov txheej txheem rov ua cov kab mob.
Dab tsi yog qhov txawv ntawm Virulent thiab Temperate Phage?
Virulent phages yog cov kab mob bacteriophages uas tsuas yog rov ua dua los ntawm lub voj voog lytic. Meanwhile, temperate phages yog cov bacteriophages uas replicate los ntawm ob qho tib si lytic thiab lysogenic cycles. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm virulent thiab temperate phage. Tsis tas li ntawd, virulent phages tsis tuaj yeem koom ua ke tus kab mob genome rau hauv cov kab mob chromosome thaum temperate phages tuaj yeem ua ke cov kab mob kis mus rau hauv cov kab mob chromosome.
Ntxiv mus, lwm qhov sib txawv ntawm cov kab mob phem thiab qhov kub ntxhov yog tias cov kab mob phages lyse cov kab mob ntawm tes thaum lub temperate phages tsis lyse cov kab mob. Tsis tas li ntawd, virulent phages qhia kev hloov pauv dav dav thaum huab cua phages qhia kev hloov pauv tshwj xeeb.
Hauv qab infographic qhia txog qhov sib txawv ntawm kev ua phem thiab kub ntxhov phage.
Summary – Virulent vs Temperate Phaj
Muaj ob hom kab mob bacteriophages: virulent thiab temperate. Phages qhia ob hom kev rov ua dua: lytic lossis lysogenic replication. Virulent phages tsuas yog lytic voj voog thaum temperate phages tuaj yeem xaiv ntawm lytic thiab lysogenic cycles. Thaum lub sij hawm lytic voj voog, virulent kab mob tsis integrate nucleic acids ntawm phage mus rau tus tswv tsev genome. Ncaj nraim tom qab kev rov ua dua thiab sib sau ua ke, cov kab mob virulent lyse cov kab mob thiab tawm los. Thaum lub sij hawm lysogenic voj voog, temperate viruses integrates nucleic acid ntawm bacteriophage mus rau tus tswv tsev genome, tab sis cov kab mob tsis lyse. Yog li, qhov no qhia txog qhov sib txawv ntawm cov kab mob phem thiab qhov kub ntxhov.
