Cov teebmeem ntawm 1-MCP ntawm Postharvest Physiology ntawm Txiv Hmab Txiv Ntoo, Zaub thiab Paj
(1) Kev cuam tshuam rau kev tsim cov ethylene. Ethylene tuaj yeem ua rau muaj qhov tsis zoo thiab lub cev tsis zoo hauv cov qoob loo tom qab sau qoob loo. 1-MCP tuaj yeem cuam tshuam kev sib xyaw ua ke ntawm ethylene thiab nws cov receptors, thaiv cov biosynthesis ntawm ethylene tawm tswv yim tswj.
(2) Cov nyhuv ua pa. 1-MCP tuaj yeem tiv thaiv kev ua pa ntawm cov ntaub so ntswg lossis cov kabmob. Nws tsis tsuas yog ncua lub ncov ntawm kev ua pa, tab sis kuj txo qhov siab kawg ntawm kev ua pa.
(3) Qhov cuam tshuam rau tom qab ripening thiab softening ntawm txiv hmab txiv ntoo thiab zaub. Muaj cov txheej txheem tom qab ripening hauv cov txiv hmab txiv ntoo thiab zaub tom qab sau qoob loo, nrog rau cov txiv hmab txiv ntoo thiab zaub. Tom qab cov txiv hmab txiv ntoo thiab zaub tau kho nrog 1-MCP, exogenous ethylene kev kho mob tsis tuaj yeem ua kom cov txiv hmab txiv ntoo thiab zaub, uas yuav tshwm sim los ntawm qhov tsis txaus cov ethylene receptors tshiab hauv cov ntaub so ntswg. Txawm li cas los xij, yog tias muaj sij hawm txaus thiab txaus qhov chaw ntawm ethylene-binding qhov chaw tuaj yeem ua ke, exogenous ethylene tuaj yeem ua rau cov txiv hmab txiv ntoo thiab zaub tom qab ripening. Qhov no qhia tau hais tias cov nyhuv inhibitory ntawm 1-MCP tsuas yog cuam tshuam rau cov txiv hmab txiv ntoo thiab zaub thaum ntxov, thiab qhov ua rau softening ntawm txiv hmab txiv ntoo thiab zaub yog cov txheej txheem irreversible.
Cov teebmeem ntawm 1-MCP rau qhov zoo ntawm cov txiv hmab txiv ntoo, zaub thiab paj
(1) Cov nyhuv ntawm kev ruaj khov ntawm cov txiv hmab txiv ntoo thiab zaub. Softening yog ib qho kev tshwm sim hauv cov txheej txheem ntawm cov txiv hmab txiv ntoo ripening, uas yog rhiab heev rau kev kho ethylene. Cov kev tshawb fawb tau pom tias cov enzymes cuam tshuam rau softening thaum lub sij hawm ripening txheej txheem yog tsuas yog exo- thiab endo-PG. 1-MCP tuaj yeem ncua cov txiv hmab txiv ntoo softening, uas tej zaum yuav cuam tshuam nrog inhibition ntawm softening-txog enzymes.
(2) Cov nyhuv ntawm cov xim ntawm cov txiv hmab txiv ntoo thiab zaub. Cov ntaub so ntswg los yog lub cev hloov xim yog ib qho tseem ceeb ntawm senescence nyob rau hauv lub postharvest horticultural qoob loo, feem ntau tshwm sim nyob rau hauv lub degradation ntawm chlorophyll thiab cov synthesis los yog cov tsos ntawm lwm yam pigments. 1-MCP kev kho mob tuaj yeem ncua sij hawm ripening thiab senescence txheej txheem ntawm climacteric txiv hmab txiv ntoo thiab zaub, thiab ncua kev hloov ntawm lawv cov xim.
