Lub luag haujlwm ntawmIAA 3-indole acetic acid
Siv raws li ib tug cog kev loj hlob stimulant thiab analytical reagent. IAA 3-indole acetic acid thiab lwm yam auxin tshuaj xws li 3-indoleacetaldehyde, IAA 3-indole acetic acid thiab ascorbic acid muaj nyob hauv cov xwm txheej. Lub precursor ntawm 3-indoleacetic acid rau biosynthesis hauv cov nroj tsuag yog tryptophan. Lub luag haujlwm tseem ceeb ntawm auxin yog nyob rau hauv kev tswj kev loj hlob ntawm cov nroj tsuag. Nws tsis tsuas yog txhawb kev loj hlob, tab sis kuj muaj cov txiaj ntsig ntawm inhibiting kev loj hlob thiab kev tsim ntawm lub cev. Auxin tsis tsuas yog muaj nyob rau hauv lub xeev dawb nyob rau hauv cov nroj tsuag hlwb, tab sis kuj muaj peev xwm ua tau ruaj khov rau cov macromolecules lom thiab lwm hom auxin. Kuj tseem muaj auxin uas tuaj yeem tsim cov complexes nrog cov khoom tshwj xeeb, xws li indole-acetylasparagine, indole-acetyl pentose acetate thiab indole-acetylglucose, thiab lwm yam. Qhov no tej zaum yuav yog ib daim ntawv ntawm auxin cia nyob rau hauv lub hlwb thiab kuj yog ib txoj kev detoxification kom tshem tawm cov toxicity ntawm auxin ntau dhau.
Ntawm qib cellular, auxin tuaj yeem txhawb kev faib cov cell cambium; Txhawb nqa lub elongation ntawm ceg hlwb thiab inhibit qhov kev loj hlob ntawm cov hauv paus hniav; Txhawb kev sib txawv ntawm xylem thiab phloem hlwb, pab txhawb lub hauv paus ntawm cuttings, thiab tswj lub morphogenesis ntawm callus.
Auxin plays lub luag haujlwm los ntawm cov noob mus rau cov txiv hmab txiv ntoo kom loj hlob ntawm ob qho tib si hauv nruab nrog cev thiab tag nrho cov nroj tsuag. Reversible red light inhibition ntawm auxin hauv kev tswj mesocotyl elongation hauv cov noob; Thaum indoleacetic acid hloov mus rau sab qis ntawm ceg, geotropy ntawm ceg tshwm sim. Thaum indoleacetic acid hloov mus rau qhov ntxoov ntxoo ntawm ceg, phototropism ntawm ceg tshwm sim. Indoleacetic acid ua rau muaj kev tswj hwm sab saum toj; Ncua nplooj senescence; Auxin siv rau cov nplooj inhibits shedding, thaum auxin thov mus rau lub proximal kawg ntawm dissociated txheej txhawb shedding. Auxin txhawb kev paj, induces kev loj hlob ntawm unisexual txiv hmab txiv ntoo, thiab ncua txiv hmab txiv ntoo ripening.
Txoj kev siv ntawmIAA 3-indole acetic acid
1. Ncua tseg
(1) Thaum lub sij hawm tag nrho lub sij hawm flowering ntawm txiv lws suav, cov paj yog soaked nyob rau hauv ib tug daws ntawm 3000 milligrams ib liter kom induce parthenogenic fruiting thiab txiv hmab txiv ntoo teeb tsa ntawm txiv lws suav, tsim seedless txiv lws suav txiv hmab txiv ntoo thiab ua kom cov txiv hmab txiv ntoo qhov chaw.
(2) Lub hauv paus soaking txhawb lub hauv paus ntawm cov qoob loo xws li txiv apples, txiv duaj, txiv duaj, citrus txiv hmab txiv ntoo, txiv hmab txiv ntoo, kiwis, strawberries, poinsythia, carnations, chrysanthemums, roses, magnolias, rhododendrons, tshuaj yej nroj tsuag, metasequoia glyptostroboides, thiab nyob rau hauv cov hauv paus hniav ntawm cov nroj tsuag, thiab nyob rau hauv adhering rau hauv paus acceleration ntawm cov nroj tsuag. tus nqi ntawm vegetative reproduction. Feem ntau, 100-1000mg / L yog siv los ntub lub hauv paus ntawm cuttings. Rau ntau yam uas nquag mus rau rooting, ib tug qis concentration yog siv. Rau cov hom uas tsis yooj yim rau hauv paus, siv ib qho me ntsis siab dua. Lub sij hawm soaking yog kwv yees li 8 mus rau 24 teev, nrog lub siab concentration thiab lub sij hawm luv luv.
2. Txau
Rau chrysanthemums (nyob rau hauv lub voj voog 9-teev lub teeb), txau cov tshuaj ntawm 25-400mg / L ib zaug tuaj yeem cuam tshuam cov paj paj thiab ncua sijhawm paj.
Lub sij hawm xa tuaj: Plaub Hlis-07-2025