CAS Nr .: 4337-33-1Qhov zoo tshaj plawsdej attractanttam sim no!

DMPTlub npe hu ua dimethyl-β-propiothetin, yog dav nyob rau hauv seaweed thiab halophytic siab nroj tsuag.DMPT muaj kev txhawb nqa kev noj qab haus huv ntawm cov tsiaj nyeg, nqaij qaib, thiab cov tsiaj hauv dej (ntses thiab cw).DMPT yog cov khoom muaj zog tshaj plaws rau cov tsiaj hauv dej ntawm txhua qhov sib txuas uas muaj (CH) thiab S-pab pawg.

1. Qhov chaw ntawm DMPT

Dimethyl sulfide (DMS) tsim los ntawm Polysipho - nia fastigata feem ntau yog los ntawmDMPT, uas kuj yog ib qho zoo methyl pub rau hauv algae, thiab lub ntsiab osmotic regulator ntawm algae thiab mudflat cog Spartina angelica kuj yog DMPT.Cov ntsiab lus ntawm DMPT sib txawv ntawm ntau hom seaweed, thiab cov ntsiab lus ntawm tib hom seaweed kuj txawv nyob rau hauv ntau lub caij.DMPT tuaj yeem ua kom nrawm nrawm ntawm kev pub mis thiab kev loj hlob ntawm ntau yam ntses dej tshiab.Kev noj haus inducing nyhuv ntawm DMPT yog txawv los ntawm lwm yam tshuaj xws li L-amino acids los yog nucleotides, thiab nws muaj pub thiab loj hlob txhawb kev cuam tshuam rau yuav luag tag nrho cov tsiaj nyob rau hauv dej.

2.1 Siv tau Ligands raws li saj Receptors

Kev tshawb fawb ntawm receptors nyob rau hauv cov ntses chemical sensory nruab nrog cev uas tuaj yeem cuam tshuam nrog (CH) S-pab pawg tseem tsis muaj.Los ntawm cov txiaj ntsig ntawm kev coj cwj pwm uas twb muaj lawm, nws tuaj yeem txheeb xyuas tau tias cov ntses yeej muaj cov khoom noj uas muaj peev xwm cuam tshuam nrog cov khoom hnyav molecular uas muaj (CH), N -, thiab (CH2) 2S - pawg.

2.2 Raws li methyl pub dawb

Cov (CH) thiab S-groups ntawm lubDMPTmolecule yog qhov chaw ntawm methyl pawg uas xav tau rau tsiaj noj zaub mov metabolism.Muaj ob hom methyltransferases (EC2.1.1.3 thiab EC2.1.1.5) hauv cov tsiaj siab uas siv los ntawm cov tsiaj (CH) thiab S.

Nws tau tshawb pom tias qhov concentration ntawm DMPT thiab qhov emission tus nqi ntawm DMS nyob rau hauv cov seaweed hlwb tau nce nrog nce salinity nyob rau hauv kab lis kev cai nruab nrab ntawm cov kab lis kev cai seaweed (Hymenonas carterae).

DMPTyog enriched nyob rau hauv lub hlwb ntawm ntau phytoplankton, algae, thiab symbiotic mollusks xws li clams thiab corals, raws li zoo raws li nyob rau hauv krill thiab ntses lub cev.Iida et al.(1986) tau lees paub tias cov ntsiab lus ntawm DMPT thiab kev tsim cov DMS hauv cov ntses muaj kev sib raug zoo nrog DMPT cov ntsiab lus hauv lawv cov khoom noj, qhia tias DMPT mov hauv cov tsiaj los ntawm cov kab nuv ntses thiab nkag mus rau tib neeg lub cev tsiaj los ntawm cov khoom noj khoom haus hauv marine ecosystems. .Algae tuaj yeem tsim cov DMPT thiab sib sau ua ke ntawm qib siab (3-5 mmol / L) hauv lub cev.DMPT hauv cov ntses thiab mollusks yog ze rau lawv cov qib hauv kev noj zaub mov, thiab cov ntsiab lus ntawm DMPT qhia tau hais tias qhov kev poob qis hauv qhov kev txiav txim ntawm algae (1 mmol / L), mollusks (0.1 mmol / L), thiab ntses (0.01 mmol / L). L).

Physiological Mechanism ntawmDMPTKev ua

Nyob rau hauv xyoo tas los no, kev tshawb fawb tau pom tias DMPT muaj kev txhawb nqa rau kev noj zaub mov thiab kev loj hlob ntawm ntau yam ntses dej hiav txwv thiab dej tshiab, crustaceans, thiab shellfish, uas tuaj yeem txhim kho lawv cov kev ntxhov siab thiab kev tawm dag zog, thiab ntxiv cov enzymes tseem ceeb ntawm pawg methyl concentration tsawg. hauv kev noj haus.Siv lub siab ntawm hiav txwv bream ua cov khoom siv sim thiab ntau yam sib xyaw uas muaj (CH) thiab S - pawg ua substrates, nws tau pom tias E C.2.1.1.3 thiab E Cov enzyme kev ua haujlwm siab tshaj plaws thaum DMPT yog siv los ua cov substrate.

3. Kev noj zaub mov zoo ntawm DMPT rau cov tsiaj hauv dej

Nees nkaum qis molecular hnyav cov organic tebchaw uas muaj (CH) thiab S-pab pawg tau siv rau kev tom tus cwj pwm thiab kev sim electrophysiological ntawm seawater thiab cov ntses dej tshiab.Nws tau pom tias DMPT muaj kev txhawb zog tshaj plaws rau kev tom tus cwj pwm ntawm peb hom ntses, suav nrog tuna dej tshiab, carp, thiab dub crucian carp (Carassius auratus cuviera).Nws kuj tseem txhawb nqa tus cwj pwm pub mis ntawm dej hiav txwv qhov tseeb nplai (Pagrus loj) thiab tsib nplai (Seriola quinquera Diata).

Sib tov DMPT thiab lwm cov tshuaj sulfur-muaj cov ntsiab lus ntawm 1.0 mmol / L.rau hauv ntau yam kev sim noj, thiab hloov pab pawg tswj nrog cov dej distilled los ua cov lus teb rau kev noj zaub mov ntawm crucian carp.Cov txiaj ntsig tau pom tias hauv thawj plaub pawg ntawm kev sim, pawg DMPT muaj qhov nruab nrab ntawm 126 qhov siab dua qhov ntau dua li pawg tswj hwm;Hauv kev sim thib ob 5-pab pawg, pawg DMPT yog 262.6 npaug ntau dua li pawg tswj hwm.Hauv kev sim sib piv nrog glutamine, nws tau pom tias qhov concentration ntawm 1.0 mmol / L.