DMPT, CAS OYA.: 4337-33-1.Ibyizagukurura amaziubungubu!

DMPTizwi nka dimethyl-β-propiothetin, igaragara cyane mu bimera byo mu nyanja no mu bimera byo hejuru bya halofitike.DMPT igira uruhare runini mu guhindura imirire y’inyamabere, inyoni z’inkoko, n’inyamaswa zo mu mazi (amafi na shrimp).DMPT ni ibintu bifite ingaruka zikomeye zo gukurura inyamaswa zo mu mazi mubintu byose bizwi birimo (CH) na S-matsinda.

1. Inkomoko ya DMPT

Dimethyl sulfide (DMS) yakozwe na Polysipho - nia fastigata ahanini iturukaDMPT, nabwo ni umuterankunga mwiza wa methyl muri algae, kandi nyamukuru ya osmotic igenga algae hamwe nigitaka cya mudflat Spartina angelica nayo ni DMPT.Ibiri muri DMPT biratandukanye muburyo butandukanye bwibiti byo mu nyanja, kandi ibikubiye mubwoko bumwe bwibiti byo mu nyanja nabyo biratandukanye mubihe bitandukanye.DMPT irashobora kwihutisha cyane kugaburira no gukura kw'amafi atandukanye y'amazi meza.Ingaruka yo kugaburira DMPT itandukanye nibindi bintu nka L-amino acide cyangwa nucleotide, kandi ifite kugaburira no gukura biteza ingaruka ku nyamaswa zo mu mazi hafi ya zose.

2.1 Ligands Nziza nkuwakira uburyohe

Ubushakashatsi bwakiriwe mubyuma byamafi byamafi bishobora gukorana na (CH) S-matsinda biracyari ubusa.Duhereye ku bisubizo by'imyitwarire iriho, birashobora gusesengurwa ko rwose amafi afite uburyohe bwakira uburyohe bushobora gukorana nuburemere buke bwa molekile irimo (CH), N -, na (CH2) 2S - amatsinda.

2.2 Nkumuterankunga wa methyl

(CH) na S-matsinda kuriDMPTmolekile nisoko yitsinda rya methyl risabwa kugirango intungamubiri zintungamubiri zinyamaswa.Hariho ubwoko bubiri bwa methyltransferase (EC2.1.1.3 na EC2.1.1.5) mwumwijima winyamaswa zikoreshwa ninyamaswa (CH) na S.

Byagaragaye ko kwibumbira hamwe kwa DMPT n’igipimo cy’ibyuka bya DMS mu ngirabuzimafatizo zo mu nyanja byiyongereye hamwe n’ubwiyongere bw’umunyu mu muco w’umuco w’ibiti byo mu nyanja (Hymenonas carterae).

DMPTikungahaye mu ngirabuzimafatizo za phytoplankton, algae, na mollusks ya symbiotic nka clam na korali, ndetse no muri krill hamwe n’amafi y’amafi.Iida n'abandi.. .Algae irashobora guhuza DMPT ikayiteranya kurwego rwo hejuru (3-5 mmol / L) mumubiri.DMPT mu mafi na mollusks yegereye urwego rwabo mu mirire, kandi kwibumbira hamwe kwa DMPT byerekana kugabanuka kugabanuka kuri gahunda ya algae (1 mmol / L), mollusks (0.1 mmol / L), n'amafi (0.01 mmol / L).

Uburyo bwa Physiologique yaDMPTIgikorwa

Mu myaka yashize, ubushakashatsi bwerekanye ko DMPT igira uruhare runini mu myitwarire yo kugaburira no gukura kw’amafi atandukanye yo mu nyanja n’amazi meza, crustaceans, na shellfish, ibyo bikaba bishobora kuzamura imihangayiko yabo ndetse nubushobozi bwimyitozo ngororamubiri, kandi bikongerera imisemburo yingenzi ya methyl matsinda mato mato. mu mirire.Ukoresheje umwijima wo mu nyanja nkibikoresho byubushakashatsi hamwe nibintu bitandukanye birimo (CH) na S - amatsinda nkibisobanuro, byagaragaye ko E C.2.1.1.3 na E Igikorwa cya enzyme ni kinini mugihe DMPT ikoreshwa nka substrate.

3. Ingaruka zimirire ya DMPT ku nyamaswa zo mu mazi

Ibiro 20 bya molekuline bifite uburemere buke birimo (CH) na S-matsinda byakoreshejwe mu myitwarire yo kuruma no gukora ubushakashatsi bwa electrophysiologique ku mazi yo mu nyanja n’amafi meza.Byagaragaye ko DMPT yagize ingaruka zikomeye zo guteza imbere imyitwarire yo kuruma yubwoko butatu bw amafi, harimo tuna y'amazi meza tuna, karp, na karipi yumukara (Carassius auratus cuviera).Yateje imbere kandi imyitwarire yo kugaburira amazi yinyanja igipimo nyacyo (Pagrus major) nubunzani butanu (Seriola quinquera diata).

Kuvanga DMPT hamwe nibindi bintu birimo sulfure ku gipimo cya 1.0mmol / L.mu mafunguro atandukanye yubushakashatsi, hanyuma usimbuze itsinda rishinzwe kugenzura amazi yatoboye kugirango ukore ibizamini byo kugaburira ibyokurya kuri karp.Ibisubizo byerekanye ko mu matsinda ane ya mbere yubushakashatsi, itsinda rya DMPT ryagize impuzandengo ya 126 yo kuruma inshuro nyinshi kuruta itsinda rishinzwe kugenzura;Mu igeragezwa rya kabiri ryitsinda 5, itsinda rya DMPT ryikubye inshuro 262,6 kurenza itsinda rishinzwe kugenzura.Mu bushakashatsi bugereranije na glutamine, byagaragaye ko kuri concentration ya 1.0mmol / L.