DMPT, CAS NO.: 4337-33-1. Yakanakisisachinokwezva vanhu mumvurazvino!

DMPTinozivikanwa se dimethyl-β-propiothetin, inowanikwa zvakanyanya mumiti yegungwa neye halophytic yakakwirira. DMPT ine simba rekusimudzira mashandiro emuviri wemhuka dzinoyamwisa, huku, nemhuka dzemumvura (hove neshrimp). DMPT chinhu chine simba guru rekukwezva mhuka dzemumvura pakati pezvinhu zvese zvinozivikanwa zvine (CH) neS-groups.

1. Kunobva DMPT

Dimethyl sulfide (DMS) inogadzirwa nePolysipho - nia fastigata inonyanya kubva kuDMPT, iyo inoshandawo se methyl donor mu algae, uye iyo huru osmotic regulator ye algae ne mudflat plant Spartina angelica iDMPT zvakare. Zviri muDMPT zvinosiyana pakati pemhando dzakasiyana dze algae, uye zviri mumhando imwe chete ye algae zvinosiyanawo mumwaka yakasiyana. DMPT inogona kukurumidzisa zvikuru kudya nekukura kwehove dzakasiyana-siyana dzemvura yakachena. Mhedzisiro yeDMPT inokurudzira kudya yakasiyana nezvimwe zvinhu zvakaita seL-amino acids kana nucleotides, uye ine mhedzisiro inokurudzira kudya nekukura pamhuka dzinenge dzese dzemumvura.

2.1 MaLigand Anoshanda Sezvinogamuchirika Kunaka

Tsvagiridzo pamusoro pemareceptor ari munhengo dzehove dzinonzwa nemakemikari dzinogona kusangana ne (CH) S-groups ichiripo. Kubva pane zvabuda mukuyedza maitiro, zvinogona kuongororwa kuti hove dzine mareceptor ekuravira anogona kusangana nemakemikari ane huremu hwakaderera ane (CH), N-, uye (CH2) 2S- groups.

2.2 Semupi we methyl

Mapoka (CH) neS ari paDMPTMamorekuru ndiwo manyuko emapoka emethyl anodiwa pakugadzirwa kwezvekudya kwemhuka. Kune mhando mbiri dzemethyltransferases (EC2.1.1.3 uye EC2.1.1.5) muchiropa chemhuka dzinoshandiswa nemhuka (CH) neS.

Zvakaonekwa kuti kuwanda kweDMPT uye mwero wekubuda kweDMS mumasero egungwa zvakawedzera nekuwedzera kwemunyu munzvimbo yekurimwa kwegungwa rakarimwa (Hymenonas carterae).

DMPTInopfuma mumasero emhando dzakawanda dze phytoplankton, algae, uye symbiotic mollusks dzakadai se clams ne corals, pamwe chete ne krill nehove. Iida et al. (1986) vakasimbisa kuti huwandu hweDMPT nekugadzirwa kweDMS muhove zvakabatana zvakanaka nehuwandu hweDMPT mukudya kwavo, zvichiratidza kuti mupunga weDMPT mumhuka unobva muchirauro uye unopinda mumuviri wemhuka yemunhu kuburikidza necheni yechikafu muzvisikwa zvegungwa. Algae inogona kugadzira DMPT uye kuiunganidza pamazinga akakwira (3-5 mmol/L) mumuviri. DMPT muhove ne mollusks iri pedyo nemazinga avo mukudya, uye huwandu hweDMPT hunoratidza kudzikira kwemaitiro ealgae (1 mmol/L), mollusks (0.1 mmol/L), uye hove (0.01 mmol/L).

Maitiro eFizikiro yeDMPTChiito

Mumakore achangopfuura, tsvakurudzo yakawana kuti DMPT ine simba rekusimudzira maitiro ekudya uye kukura kwehove dzakasiyana-siyana dzemugungwa nedzemumvura yakachena, crustaceans, uye shellfish, izvo zvinogona kuvandudza kugona kwavo kurwisa kushushikana uye kurovedza muviri, uye kuwedzera ma enzymes akakosha e methyl yeboka rakaderera mukudya. Uchishandisa chiropa che sea bream sechinhu chekuedza uye makemikari akasiyana-siyana ane (CH) ne S - mapoka se substrates, zvakaonekwa kuti E C.2.1.1.3 ne E Basa re enzyme rakakwirira kana DMPT ichishandiswa se substrate.

3. Mhedzisiro yeDMPT pamhuka dzemumvura

Makomichi makumi maviri ane huremu hwakaderera hwemamorekuru ane (CH) uye mapoka eS akashandiswa pakuita zvekuruma uye kuyedza kweelectrophysiological pahove dzemumvura yegungwa nedzemumvura yakachena. Zvakaonekwa kuti DMPT yaive nemhedzisiro yakasimba pakuita kwemhando nhatu dzehove dzekuruma, kusanganisira tuna yemumvura yakachena, carp, uye black crucian carp (Carassius auratus cuviera). Yakakurudzirawo zvakanyanya maitiro ekudyisa e sea water true scale (Pagrus major) uye five scales (Seriola quinquera diata).

Sanganisa DMPT nemamwe macompounds ane sulfur pamwero we1.0mmol/L. muzvikafu zvakasiyana-siyana zvekuedza, uye tsiva boka rekutonga nemvura yakacheneswa kuti uite bvunzo dzekupa chikafu pacrucian carp. Zvakabuda zvakaratidza kuti mumapoka mana ekutanga ekuedza, boka reDMPT raive neavhareji yekurumwa kwakakwira ka126 kupfuura boka rekutonga; Mukuyedza kwechipiri kwemapoka mashanu, boka reDMPT raive rakakwirira ka262.6 kupfuura boka rekutonga. Mukuyedza kwekuenzanisa neglutamine, zvakaonekwa kuti pamwero we1.0mmol/L.