New insights into how cyanobacteria regulate zinc uptake in the high seas ScienceDaily

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Kuzindikira kwatsopano momwe cyanobacteria imawongolera kutengeka kwa zinki m'nyanja zazikulu ScienceDaily

Ma cyanobacteria a m'madzi (buluu-green algae) ndiwo amathandizira kwambiri padziko lonse lapansi kuti apange mpweya wabwino wa kaboni padziko lonse lapansi ndipo amathandizira pazakudya zambiri zapamadzi padziko lapansi. Amangofunika kuwala kwa dzuwa, mpweya woipa, ndi zinthu zina zofunika, kuphatikizapo zitsulo, kuti zikhale ndi moyo. zochepa zimadziwika ngati cyanobacteria amagwiritsa ntchito kapena kuwongolera zinki, chinthu chomwe chimawonedwa kuti ndi chofunikira pamoyo.
Gulu lofufuza zamitundu yosiyanasiyana la mamembala anayi ochokera ku yunivesite ya Warwick lapeza njira yoyendetsera bwino kwambiri yomwe imayang'anira kuchuluka kwa zinc m'nyanja yamchere yotchedwa cyanobacteria Synechococcus.
Netiweki iyi imalola Synechococcus kusintha milingo ya zinc mkati mwake ndi maulalo opitilira awiri ndikudalira mapuloteni owongolera zinc (Zur), omwe amamva zinc ndikuyankha moyenera.
Mwapadera, puloteni ya sensa iyi imayendetsa bakiteriya metallothionein (puloteni yomanga zinc) yomwe, pamodzi ndi njira yogwiritsira ntchito bwino, imapangitsa kuti thupi likhale ndi mphamvu yodabwitsa yopezera zinki.
Pulofesa Claudia Blindauer, wa ku Dipatimenti Yoona za Chemistry ku yunivesite ya Warwick, anati: “Zotsatira zathu zikusonyeza kuti zinki ndi chinthu chofunika kwambiri pa matenda a cyanobacteria a m’madzi.Kukhoza kwawo kusunga zinki kungathandize kupititsa patsogolo kuchotsedwa kwa phosphorous, yomwe ili yosoŵa kwambiri m’madera ambiri a nyanja za padziko lapansi.Ndi macronutrient.Zinc ingafunikenso kuti mpweya wabwino ukhale wabwino. ”
Dr Alevtina Mikhaylina wa ku Warwick School of Life Sciences anati: “Zinthu zimenezi, zomwe sizinafotokozedwebe za mabakiteriya ena alionse, zingathandize kuti Synechococcus afalikire kwambiri padziko lonse lapansi.Tikukhulupirira kuti zomwe tapeza zidzakhala zosangalatsa kwambiri kwa ofufuza., kuyambira akatswiri asayansi ya zamankhwala (makamaka trace metal and bioinorganic chemist), akatswiri a zamoyo ndi mamolekyu mpaka akatswiri a sayansi ya zachilengedwe, akatswiri a zachilengedwe ndi akatswiri a zanyanja.”
Dr Rachael Wilkinson wochokera ku Swansea University Medical School ndi Pulofesa Vilmos Fülöp wochokera ku School of Life Sciences ku yunivesite ya Warwick anawonjezera kuti: "Monga gawo la polojekiti yosiyana siyana, kapangidwe ka mapuloteni a Zur amapereka chidziwitso cha makina a momwe imagwirira ntchito. kuwongolera nyanja Zinc homeostasis mu cyanobacteria."
Dr James Coverdale, wa pa yunivesite ya Birmingham’s Institute of Clinical Sciences, anati: “Pogwiritsa ntchito njira yogwiritsira ntchito sayansi ya tizilombo tosaoneka ndi maso, kusanthula, kamangidwe kake ndi mmene zinthu zilili, gulu lathu la magulu osiyanasiyana latithandiza kumvetsa bwino mmene chemistry yachilengedwe imakhudzira zamoyo za m’madzi.””
Pulofesa Dave Scanlan wa ku Warwick School of Life Sciences anawonjezera kuti: “Nyanja ndi ‘mapapo’ a pulaneti lathu losanyalanyazidwa – mpweya uliwonse umene timapuma ndi mpweya umene unachokera m’nyanja, pamene pafupifupi theka la mpweya woipa wa carbon dioxide umakhala mu biomass. zimachitika padziko lapansi m'madzi a m'nyanja.Ma cyanobacteria am'madzi ndi omwe amathandizira kwambiri "mapapo" a Dziko Lapansi, ndipo bukhuli likuwonetsa gawo lina la biology yawo, kuthekera kowongolera bwino zinc homeostasis, zomwe zimawathandiza kuti akwaniritse zofunikira zapadziko lapansi.
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Nthawi yotumiza: Jun-11-2022