S-abscisic Acid muaj txiaj ntsig ua kom muaj kev ntxhov siab-tiv taus cov noob hauv cov nplej, txhim kho nws txoj kev ua siab ntev rau drought, txias, thiab salinity-alkalinity, thaum tseem txhawb kev loj hlob hauv paus system thiab nce tus naj npawb ntawm cov tillers zoo.
Ua raws li "kev ntxhov siab-tiv thaiv inducer" hauv cov nroj tsuag, cov tshuaj no ua rau cov nplej cog qoob loo hauv lub cev tiv thaiv kab mob los ntawm kev tswj hwm qhov sib npaug ntawm cov tshuaj hormones endogenous. Nyob rau hauv drought kev nyuaj siab, S-abscisic Acid induces stomatal kaw kom txo cov dej evaporation; Tib lub sijhawm, nws txhawb kev ua haujlwm ntawm kev tiv thaiv enzymes - xws li superoxide dismutase thiab catalase - txhawm rau txo cov lipid peroxidation kev puas tsuaj thiab txhawb nqa cov haujlwm photosynthetic.
Nyob rau hauv ib cheeb tsam uas tsis muaj kub, nws induces lub synthesis ntawm txias-tiv taus proteins thiab txhim kho cell membrane stability, yog li txo tus nqi ntawm chlorosis thiab chaw nyob los ntawm txias raug mob.
Hauv cov av saline-alkaline, S-abscisic Acid activates osmoregulation genes bolster cellular osmotic adjustment capabilities, ho txhim kho txoj kev loj hlob ntawm cov nplej nyob rau hauv high-salinity tej yam kev mob.
Tsis tas li ntawd, S-abscisic Acid txhawb kev loj hlob hauv paus. Kev kho mob nrog ib qho concentration ntawm 0.5 mg / L tau pom tias yuav txhim kho cov hauv paus vitality hauv luam yeeb; thaum siv analogously rau mov, nws qhia tau hais tias ib tug zoo xws li cov cag-txhim kho nyhuv. Hais txog kev cai tiller, abscisic acid ua synergistically nrog strigolactones los suppress tsim ntawm ineffective tillers thaum txhawb txoj kev loj hlob ntawm zoo tillers, li no optimizing cog architecture thiab boosting yield.
Nyob rau hauv kev siv tswv yim, soaking noob nyob rau hauv ib tug daws ntawm 0.3-0.4 mg/L rau 24 mus rau 48 xuab moos tuaj yeem txhim kho tus nqi germination thiab yub zoo; foliar txau thaum lub sij hawm "ib-nplooj-thiab-ib-lub siab" rau "ob-nplooj-thiab-ib-lub siab" theem pab hauv kev tsim cov yub thiab txhawb nqa tillering.
