Video: Hom molecules twg feem ntau yog siv los ntawm cov kab mob rau quorum sensing?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Gram-negative thiab Gram-positive kab mob siv qhov no hom ntawm kev sib txuas lus, txawm lub teeb liab molecules (auto-inducers) siv los ntawm lawv txawv ntawm ob pawg: Gram-negative kab mob siv Feem ntau N-acyl homoserine lacton (AHL) molecules (autoinducer-1, AI-1) thaum Gram-zoo kab mob siv feem ntau yog peptides
Ib yam li ntawd ib tug yuav nug, hom molecules uas feem ntau yog siv los ntawm cov kab mob rau pawg sensing xaiv txhua yam uas siv?
AHL-based Quorum Sensing N-Acyl homoserine lactones (AHLs) yog cov molecules feem ntau nquag siv los ntawm Gram-negative kab mob raws li pawg - kev paub autoinducers. Cov no molecules muaj xws li ib tug invariant homoserine lactone (HSL) nplhaib txuas mus rau ib tug acyl saw uas muaj peev xwm sib txawv nyob rau hauv ntev ntawm 4 thiab 18 carbon atoms.
Kuj Paub, qhov kev hnov lus zoo li cas rau cov kab mob? Hauv biology, pawg ntseeg yog lub peev xwm los ntes thiab teb rau cov neeg ntawm cov xov tooj ntawm tes los ntawm kev tswj cov noob. Raws li ib qho piv txwv, pawg ntseeg (QS) enables kab mob txwv tsis pub cov kev qhia ntawm cov noob tshwj xeeb rau cov cell siab ceev uas qhov tshwm sim phenotypes yuav yog feem ntau muaj txiaj ntsig.
Tsis tas li ntawd, qhov kev paub ntawm pawg ntseeg siv rau dab tsi?
Quorum sensing tso cai rau cov neeg kab mob sib txuas lus thiab sib koom ua ke ntawm pawg neeg coj cwj pwm thiab feem ntau yog siv los ntawm cov kab mob (cov kab mob ua rau muaj kab mob) hauv cov kab mob thiab kab mob.
Hom kev taw qhia dab tsi yog quorum sensing?
Quorum sensing yog ib daim ntawv ntawm teeb liab uas cell secretes a teeb liab molecule sib txuas lus nrog lwm cov hlwb (piv txwv li, koom nrog kev sib txuas lus hauv zej zog') hauv ib txoj hauv kev uas nyob ntawm qhov ceev ntawm cov neeg ntawm tes. Raws li cov pej xeem ceev nce, qhov concentration ntawm AHL ua li cas.
Pom zoo:
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