DMPT, CAS NO.: 4337-33-1.Bwino kwambirichokopa cha m'madzitsopano!

DMPTZomwe zimadziwika kuti dimethyl-β-propiothetin, zimapezeka kwambiri m'madzi am'nyanja ndi zomera zapamwamba za halophytic.DMPT imalimbikitsa kagayidwe kazakudya za nyama zoyamwitsa, nkhuku, ndi nyama zam'madzi (nsomba ndi shrimp).DMPT ndi chinthu chomwe chimakhala ndi mphamvu yokopa kwambiri nyama zam'madzi pakati pamagulu onse odziwika omwe ali ndi (CH) ndi S-magulu.

1. Gwero la DMPT

Dimethyl sulfide (DMS) yopangidwa ndi Polysipho -nia fastigata makamaka imachokeraDMPT, yomwe imakhalanso wothandizira methyl mu algae, ndipo chowongolera chachikulu cha osmotic cha algae ndi chomera cha mudflat Spartina angelica ndi DMPT.Zomwe zili mu DMPT zimasiyanasiyana pakati pa mitundu yosiyanasiyana ya zomera zam'nyanja, ndipo zomwe zili mumtundu womwewo wa zomera zam'nyanja zimasiyananso mu nyengo zosiyanasiyana.DMPT imatha kufulumizitsa kudyetsa ndi kukula kwa nsomba za m'madzi osiyanasiyana.Kudyetsa kukopa kwa DMPT ndi kosiyana ndi zinthu zina monga L-amino acid kapena ma nucleotides, ndipo imakhala ndi zotsatira zolimbikitsa kudyetsa ndi kukula pafupifupi nyama zonse zam'madzi.

2.1 Ma Ligands Ogwira Ntchito Monga Zolandirira Kulawa

Kafukufuku wokhudzana ndi zolandilira m'magulu amtundu wamafuta omwe amatha kulumikizana ndi (CH) S-magulu akadali opanda kanthu.Kuchokera pazotsatira zoyeserera zamakhalidwe zomwe zilipo, zitha kuwunikidwa kuti nsomba zili ndi zolandilira zolawa zomwe zimatha kuyanjana ndi magulu otsika a maselo omwe ali ndi (CH), N -, ndi (CH2) 2S - magulu.

2.2 Monga methyl donor

The (CH) ndi S-magulu paDMPTmolekyulu ndi magwero a magulu a methyl omwe amafunikira kuti kagayidwe kazakudya kanyama.Pali mitundu iwiri ya methyltransferases (EC2.1.1.3 ndi EC2.1.1.5) m'chiwindi cha nyama yomwe imagwiritsidwa ntchito ndi nyama (CH) ndi S.

Zinadziwika kuti kuchuluka kwa DMPT ndi kuchuluka kwa mpweya wa DMS m'maselo am'madzi akuchulukirachulukira ndikuwonjezeka kwa mchere mu chikhalidwe cha chikhalidwe cha m'nyanja zamchere (Hymenonas carterae).

DMPTimalemeretsedwa m'maselo a phytoplankton, algae, ndi mollusks symbiotic monga clams ndi corals, komanso ma krill ndi nsomba.Iida et al.(1986) adatsimikizira kuti zomwe zili mu DMPT ndi kupanga DMS mu nsomba zimagwirizana bwino ndi zomwe zili mu DMPT muzakudya zawo, zomwe zikuwonetsa kuti mpunga wa DMPT mu nyama umachokera ku nyambo ndikulowa m'thupi la munthu kudzera muzakudya zam'madzi. .Algae amatha kupanga DMPT ndikuuunjikira pamlingo wapamwamba (3-5 mmol / L) m'thupi.DMPT mu nsomba ndi mollusks ili pafupi ndi milingo yawo muzakudya, ndipo kuchuluka kwa DMPT kukuwonetsa kuchepa kwa dongosolo la algae (1 mmol/L), mollusks (0.1 mmol/L), ndi nsomba (0.01 mmol/ L).

The Physiological Mechanism waDMPTZochita

M'zaka zaposachedwa, kafukufuku wapeza kuti DMPT imalimbikitsa kudyetsa komanso kukula kwa nsomba za m'madzi ndi zam'madzi, nsomba zam'madzi, crustaceans, ndi nkhono, zomwe zimatha kusintha mphamvu zawo zotsutsana ndi kupsinjika maganizo ndi kuchita masewera olimbitsa thupi, komanso kuwonjezera ma enzymes otsika kwambiri a gulu la methyl. m'zakudya.Pogwiritsa ntchito chiwindi cha sea bream monga zinthu zoyesera ndi mankhwala osiyanasiyana omwe ali ndi (CH) ndi S - magulu monga magawo, adapeza kuti E C.2.1.1.3 ndi E Ntchito ya enzyme ndipamwamba kwambiri pamene DMPT imagwiritsidwa ntchito ngati gawo lapansi.

3. Zakudya zopatsa thanzi za DMPT pa nyama zam'madzi

Makumi awiri otsika a maselo olemera omwe ali ndi (CH) ndi S-magulu adagwiritsidwa ntchito poluma khalidwe komanso kuyesa kwa electrophysiological pamadzi a m'nyanja ndi nsomba zam'madzi.Zinapezeka kuti DMPT inali ndi mphamvu yolimbikitsa kwambiri pa khalidwe loluma la mitundu itatu ya nsomba, kuphatikizapo tuna, carp, ndi black crucian carp (Carassius auratus cuviera).Zinalimbikitsanso kwambiri machitidwe odyetsera madzi a m'nyanja zenizeni (Pagrus yaikulu) ndi masikelo asanu (Seriola quinquera diata).

Sakanizani DMPT ndi mankhwala ena okhala ndi sulfure pamlingo wa 1.0mmol/L.m'zakudya zosiyanasiyana zoyesera, ndikusintha gulu lowongolera ndi madzi osungunuka kuti muyese mayeso oyankha pa crucian carp.Zotsatira zinasonyeza kuti m'magulu anayi oyambirira a zoyesera, gulu la DMPT linali ndi maulendo apamwamba a 126 apamwamba kuposa gulu lolamulira;Pakuyesa kwachiwiri kwa gulu la 5, gulu la DMPT linali nthawi 262.6 kuposa gulu lolamulira.Poyerekeza ndi glutamine, zidapezeka kuti pagulu la 1.0mmol/L.