Qhov sib txawv tseem ceeb ntawm glyphosate thiab glufosinate yog glyphosate yog ib qho khoom siv hluavtaws, hos glufosinate yog ib qho tshwm sim ib txwm muaj.
Ob leeg glyphosate thiab glufosinate yog dav-spectrum herbicide compounds. Cov no yog cov organic tebchaw uas muaj cov qauv zoo sib xws. Ob lub qauv tuaj yeem paub qhov txawv los ntawm kev saib xyuas txoj haujlwm ntawm -NH2- pawg txuas nrog cov pa roj carbon atoms. Hauv lwm lo lus, glyphosate muaj -NH2- pab pawg ntawm 3 rd txoj haujlwm ntawm cov saw hlau thaum glufosinate muaj cov -NH2- pawg txuas nrog cov pa roj carbon thib ob ntawm cov saw hlau.
YGlyphosate yog dab tsi?
Glyphosate yog ib qho organic compound uas muaj cov tshuaj formula C3H8NO5P. Nws yog ib tug hluavtaws broad-spectrum herbicide thiab qoob loo desiccant. Peb tuaj yeem pom tias qhov sib xyaw no yog ib qho organophosphorus compound thiab tshwj xeeb, phosphonate. Cov tshuaj no tuaj yeem ua los ntawm inhibiting qee cov enzymes cog. Peb tuaj yeem siv glyphosate los tua cov nroj tsuag, tshwj xeeb tshaj yog cov nplooj dav dav thiab cov nyom vim tias cov nroj tsuag no nyiam sib tw nrog cov qoob loo kom loj hlob.
Daim duab 01: Cov qauv ntawm Glyphosate
Glyphosate tau tshawb pom los ntawm tus kws tshuaj, John E. Franz hauv xyoo 1970. Cov tshuaj no tau coj mus rau hauv kev ua lag luam siv lub npe khoom "Roundup". Lub sijhawm ntawd, cov neeg ua liaj ua teb sai sai tau txais cov tshuaj no rau kev tswj cov nroj tsuag ua liaj ua teb vim cov tuam txhab ua liaj ua teb tau qhia txog glyphosate-resistant Roundup Ready cov qoob loo uas cia lawv tua cov nroj tsuag yam tsis tua cov qoob loo. Piv txwv li, xyoo 2007, glyphosate yog siv tshuaj tua kab ntau tshaj plaws hauv Tebchaws Meskas rau kev ua liaj ua teb xws li ua liaj ua teb, hauv vaj tsev, tsoomfwv thiab kev lag luam, thiab lwm yam kev lag luam.
Cov nroj tsuag nyiam nqus glyphosate los ntawm lawv cov nplooj thiab los ntawm cov hauv paus hniav tsawg. Tom qab ntawd, qhov sib xyaw no raug thauj mus rau cov ntsiab lus loj hlob ntawm cov nroj tsuag, thiab nws tuaj yeem cuam tshuam cov enzymes ntawm cov nroj tsuag uas koom nrog hauv kev loj hlob ntawm cov nroj tsuag. Feem ntau, cov tshuaj no inhibits peb cov amino acids: tryptophan, tyrosine, thiab phenylalanine. Yog li ntawd, peb tuaj yeem hais tias glyphosate yog nquag ntawm cov nroj tsuag loj hlob, tab sis tsis zoo li tshuaj tua kab mob ua ntej xwm txheej. Tsis tas li ntawd, peb tuaj yeem soj ntsuam tias muaj ntau cov nroj tsuag uas tau tsim cov noob caj noob ces kom tiv taus glyphosate.
YGlufosinate yog dab tsi?
Glufosinate yog ib qho organic compound uas muaj cov tshuaj formula C 5H12NO4P. Nws yog ib txwm tshwm sim broad-spectrum herbicide. Peb tuaj yeem soj ntsuam qhov sib xyaw ua ke no ua rau cov kab mob xws li Streptomyces av kab mob. Nws yog ib qho tshuaj tua kab mob uas tsis yog xaiv tau uas muaj qee qhov kev ua haujlwm. Ntxiv mus, qee cov nroj tsuag tuaj yeem metabolize bialaphos (ib qho tshuaj tua kab mob tshwm sim) rau hauv glufosinate ncaj qha.
Daim duab 02: Cov qauv tshuaj ntawm Glufosinate
Glufosinate tuaj yeem tiv thaiv tsis tau cov synthesis ntawm glutamine. Nws yog ib qho enzyme uas tsim nyog rau kev tsim cov glutamine thiab ammonia detoxification. Cov nroj tsuag tuag nyob rau hauv lub xub ntiag ntawm glufosinate tshwm sim vim qhov txo qis ntawm glutamine qib hauv cov nroj tsuag los ntawm glufosinate, ua raws li cov qib siab ammonia hauv cov ntaub so ntswg uas tuaj yeem nres photosynthesis thiab tua cov nroj tsuag.
Dab tsi yog qhov zoo sib xws ntawm Glyphosate thiab Glufosinate?
- Ob leeg yog cov tshuaj tua kab mob dav dav.
- Lawv muaj cov qauv tshuaj zoo sib xws, uas tsuas yog txawv vim qhov txuas ntawm -NH2-pab pawg rau cov saw hlau.
- Ob leeg muaj carboxylic acid functional pawg thiab amine pawg
Qhov txawv ntawm Glyphosate thiab Glufosinate yog dab tsi
Glyphosate thiab glufosinate yog cov organic tebchaw uas tseem ceeb ua cov tshuaj tua kab mob. Qhov sib txawv tseem ceeb ntawm glyphosate thiab glufosinate yog glyphosate yog ib qho khoom siv hluavtaws, hos glufosinate yog ib qho chaw tshwm sim. Glyphosate thiab glufosinate muaj cov qauv tshuaj zoo sib xws; Txawm li cas los xij, qhov sib txawv ntawm glyphosate thiab glufosinate tuaj yeem txheeb xyuas los ntawm kev saib xyuas txoj haujlwm ntawm -NH2- pawg txuas nrog cov pa roj carbon atoms. Nyob rau hauv glyphosate, ib pawg amine yog tam sim no nyob rau hauv peb txoj hauj lwm ntawm cov pa roj carbon saw hlau thaum nyob rau hauv glufosinate, ib pab pawg neeg amine txuas mus rau lub thib ob carbon atom ntawm cov carbon saw.
Hauv qab infographic teev qhov sib txawv tseem ceeb ntawm glyphosate thiab glufosinate hauv daim ntawv tabular.
Summary - Glyphosate vs Glufosinate
Glyphosate thiab glufosinate muaj cov qauv tshuaj zoo sib xws thiab cov tshuaj lom neeg zoo sib xws. Qhov sib txawv tseem ceeb ntawm glyphosate thiab glufosinate yog glyphosate yog ib qho khoom siv hluavtaws, hos glufosinate yog ib qho tshwm sim tshwm sim.
