Resveratrol Ntxiv

Hom kab mob: Nws muaj qhov cuam tshuam tseem ceeb ntawm Botrytis cinerea-induced grey pwm (feem ntau hauv strawberries, txiv hmab txiv ntoo, txiv lws suav, thiab lwm yam). Tsis tas li ntawd, nws tseem muaj peev xwm tswj tau cov kab mob powdery mildew, downy mildew, anthracnose, thiab lwm yam.

Daim ntawv thov txheej txheem: Los ntawm kev txau cov foliar, resveratrol tuaj yeem ua rau muaj kev tiv thaiv cov lus teb hauv cov nplooj thiab txiv hmab txiv ntoo, ua kom muaj kev tiv thaiv "tsis pom" uas ua rau nws nyuaj rau cov kab mob thiab kis tau.

Cov kev tshawb fawb tau pom tias resveratrol kuj muaj kev cuam tshuam rau qee cov kab mob nroj tsuag, xws li Ralstonia solanacearum thiab Xanthomonas campestris. Nws tuaj yeem cuam tshuam nrog kev tsim cov kab mob biofilms thiab cuam tshuam cov qauv ntawm cov cell membranes, yog li inhibiting lawv txoj kev loj hlob.

Qhov no yog ib qho kev cog lus zoo heev. Resveratrol tuaj yeem qhib qhov systemic acquired resistance (SAR) ntawm cov nroj tsuag, muab tag nrho cov nroj tsuag nyob rau hauv "lub xeev ceeb toom". Thaum tus kab mob nkag mus, cov nroj tsuag tuaj yeem ua tau sai dua thiab ua kom nws cov txheej txheem tiv thaiv, xws li tsim cov kab mob -cov proteins (PR proteins), yog li txo cov tsos mob thiab kev puas tsuaj los ntawm cov kab mob kis. Piv txwv li, kev tshawb fawb txog kev haus luam yeeb mosaic virus (TMV) tau pom cov txiaj ntsig zoo.

Txawm hais tias tsis tau kawm tob npaum li nws cov tshuaj tiv thaiv kab mob -, resveratrol tseem qhia tau hais tias qee qhov kev noj tshuaj tiv thaiv kab mob thiab kev loj hlob inhibitory cuam tshuam rau qee cov kab (xws li aphids thiab mites). Nws yuav cuam tshuam rau tus cwj pwm pub mis lossis kev loj hlob ntawm kab.

Raws li cov metabolite thib ob ntawm cov nroj tsuag, resveratrol ntawm qhov tsim nyog cov ntsiab lus tseem tuaj yeem txhawb kev loj hlob ntawm cov nroj tsuag, txhim kho cov nroj tsuag kev ntxhov siab (xws li dej qhuav thiab ntsev-alkali tsis kam), thiab txhim kho qoob loo zoo.

Lub mechanism ntawm kev txiav txim ntawm resveratrol yog multi-faceted, nrog rau lub hauv paus yog lub stimulation ntawm cog kev tiv thaiv.

Mimicking phytoalexin signals: Thaum exogenous resveratrol raug siv rau cov nroj tsuag, cov nroj tsuag yuav "mistakenly" xav tias lawv raug tua los ntawm cov kab mob pathogenic thiab yog li pib tiv thaiv cov lus teb sai.

Ua kom muaj kev tiv thaiv kev tiv thaiv kab mob: Nws tuaj yeem ua rau muaj kev tiv thaiv cov tshuaj hormones qhia txoj hauv kev xws li salicylic acid (SA) thiab jasmonic acid (JA), uas yog nyob rau hauv lub hauv paus ntawm cov nroj tsuag tiv thaiv kab mob.

Inducing qhia txog tus kab mob- tiv thaiv cov noob caj noob ces: Nws ua rau cov nroj tsuag tsim cov kab mob- cov proteins (PR proteins), ua rau cov pa oxygen reactive (ROS) tawg, thiab cov phab ntsa tuab (xws li lignin deposition), ntawm lwm yam kev tiv thaiv lub cev thiab tshuaj.

Direct antibacterial kev ua ub no: Thaum muaj ntau dua, nws tseem tuaj yeem ua rau cov cell membranes ntawm cov kab mob pathogenic, cuam tshuam nrog lawv cov metabolism hauv lub zog, thiab ua rau cov kab mob bacteriostatic lossis cov kab mob bactericidal.

1. Txau cov tshuaj tua kab thaum pib ntawm cov kab mob dib grey pwm.

2. Tsis txhob siv tshuaj tua kab rau hnub cua daj cua dub lossis thaum yuav los nag hauv ib teev.

3. Siv tshuaj tua kab ob zaug nrog lub sijhawm ntawm 7 mus rau 10 hnub.