Uhlobo lweekhemikhali, imisebenzi kunye neendlela zokusetyenziswa kwe-IAA 3-indole acetic acid

Indima kaIAA 3-indole acetic acid

Isetyenziswa njengesivuseleli sokukhula kwezityalo kunye ne-reagent yohlalutyo. IAA 3-indole acetic acid kunye nezinye izinto ze-auxin ezifana ne-3-indoleacetaldehyde, i-IAA 3-indole acetic acid kunye ne-ascorbic acid zikho ngokwendalo. Isandulela se-3-indoleacetic acid yokwenza izinto kwizityalo yi-tryptophan. Umsebenzi oyintloko we-auxin usekwe ekulawuleni ukukhula kwezityalo. Ayikhuthazi nje kuphela ukukhula kodwa ikwanomphumo wokuthintela ukukhula kunye nokwakheka kwamalungu. I-Auxin ayikho kuphela kwimeko ekhululekileyo ngaphakathi kweeseli zezityalo, kodwa inokubotshelelwa ngokuqinileyo kwi-macromolecules zebhayoloji kunye nezinye iintlobo ze-auxin. Kukwakho ne-auxin enokwenza ii-complexes ezinee-substances ezikhethekileyo, ezifana ne-indole-acetylasparagine, i-indole-acetyl pentose acetate kunye ne-indole-acetylglucose, njl. Oku kunokuba luhlobo lokugcina i-auxin ngaphakathi kweeseli kunye nendlela yokususa ubuthi be-auxin egqithisileyo.

Kwinqanaba leeseli, i-auxin inokukhuthaza ukwahlukana kweeseli ze-cambium; Ivuselela ukwandiswa kweeseli zamasebe kwaye ithintele ukukhula kweeseli zengcambu; Ikhuthaza ukwahlukana kweeseli ze-xylem kunye ne-phloem, iququzelele ukuhluma kweengcambu, kwaye ilawule ukwakheka kwe-callus.

I-Auxin idlala indima ukusuka kwimbewu ukuya ekuvuthweni kwesiqhamo kumanqanaba omzimba nakwizityalo ezipheleleyo. Ukuthintela ukukhanya okubomvu okujikwayo kwe-auxin ekulawuleni ukwandiswa kwe-mesocotyl kwizithole; Xa i-indoleacetic acid idluliselwa kwicala elisezantsi lesebe, i-geotropy yesebe iyenzeka. Xa i-indoleacetic acid idluliselwa kwicala elinomthunzi lesebe, i-phototropism yesebe iyenzeka. I-indoleacetic acid ibangela ulawulo oluphezulu; Ukulibazisa ukuguga kwamagqabi; I-Auxin efakwe kumagqabi ithintela ukubola, ngelixa i-auxin efakwe kwisiphelo esikufutshane somaleko ohlukanisiweyo ikhuthaza ukubola. I-Auxin ikhuthaza ukudubula, ikhuthaza ukuphuhliswa kweziqhamo ezingafaniyo, kwaye ilibazisa ukuvuthwa kweziqhamo.

Indlela yokusebenzisaIAA 3-indole acetic acid

1. Ukuntywila

(1) Ngexesha elipheleleyo leentyantyambo zeetumato, iintyatyambo zifakwa kwisisombululo seemiligrama ezingama-3000 ngelitha ukuze kuvele iziqhamo eziphuma kwi-parthenogenic kunye nokubekwa kweziqhamo zeetumato, zenze iziqhamo zeetumato ezingenambewu kwaye zonyuse izinga lokubekwa kweziqhamo.

(2) Ukufunxa iingcambu kukhuthaza ukuhluma kwezityalo ezifana nama-apile, iipesika, iipere, iziqhamo ze-citrus, iidiliya, ii-kiwi, iistrawberry, ii-poinsythia, ii-carnations, ii-chrysanthemums, iiroses, ii-magnolias, ii-rhododendrons, izityalo zeti, i-metasequoia glyptostroboides, kunye ne-poplar, kwaye kukhuthaza ukwakheka kweengcambu eziluncedo, okukhawulezisa izinga lokuzala kwezityalo. Ngokubanzi, i-100-1000mg/L isetyenziselwa ukufunxa isiseko seziqwenga. Kwiintlobo ezithanda ukuhluma iingcambu, kusetyenziswa uxinano oluphantsi. Kwiintlobo ezingelulanga ukuhluza iingcambu, sebenzisa uxinano oluphezulu kancinci. Ixesha lokufunxa limalunga neeyure ezi-8 ukuya kwezingama-24, kunye noxinano oluphezulu kunye nexesha elifutshane lokufunxa.

2. Ukutshiza

Kwi-chrysanthemums (phantsi komjikelo wokukhanya weeyure ezili-9), ukutshiza isisombululo se-25-400mg/L kube kanye kunokuthintela ukubonakala kwamahlumela eentyatyambo kwaye kulibazise ukudubula kweentyatyambo.