Enzimatik antioksidantlar - Qurg'oqchilik butun dunyo bo'ylab sabzavotlarning o'sishi va hosildorligini cheklaydigan...

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Qurg'oqchilik butun dunyo bo'ylab sabzavotlarning o'sishi va hosildorligini cheklaydigan eng muhim ekologik cheklovdir
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bet | 12/12 | Sana | 06.08.2024 | Hajmi | 60,05 Kb. | | #269191 |
Bog'liq Qurg\'oqchilik stressining o\'simliklarning morfologik, fiziologik va biokimyoviy xususiyatlariga ta\'siri sharhEnzimatik antioksidantlar
Enzimatik antioksidantlarga superoksid dismutaza (SOD; EC 1.15.1.1), peroksidaza (POD; EC 1.11.1.7), katalaza (CAT; EC 1.11.1.6) va AsA-GSH yoki Halliwell-Asada yo'lining fermentlari kiradi, ya'ni. askorbat peroksidaza (APX; EC 1.1.1.11), glutatyon reduktaza (GR; EC 1.6.4.2), monodehidroaskorbat reduktaza (MDHAR; EC 1.6.5.4) va dehidroaskorbat reduktaza (DHAR; EC 1.1). Hujayralardagi bu antioksidant fermentlar hujayralardagi ROS ni to'g'ridan-to'g'ri detoksifikatsiya qiladi, shuningdek hujayralarning antioksidant molekulalarini sintezini, parchalanishini va qayta ishlanishini katalizlaydi.
Xulosa
Qurg'oqchilik stressi bilan bog'liq ta'sirlar, bardoshlik mexanizmlari va parametrlari haqidagi tushunchamizni yaxshilashga qaratilgan qadamlarni ko'rib chiqing. Hozirgi zamon turli xil abiotik stresslar va ayniqsa qurg'oqchilik bilan bog'liq bo'lgan kombinatsiyalarga chidamlilikni oshirishga qaratilgan yaxshi rejalashtirilgan eksperimental dasturlarni talab qildi. Biz bilimlarimizni takomillashtirsak va suv tanqisligining engil, o'rtacha va og'ir ta'sirining ekinlarning turli morfologik, fiziologik, biokimyoviy, o'sishi, rivojlanishi, hosildorligi va sifatiga ta'sirini miqdoriy jihatdan aniqlaganimizda, ushbu omillarni qurg'oqchilik stressini o'rganishda qo'llash ehtimoli ortadi. takomillashtiriladi va hisobga olinishi kerak. Qishloq xo'jaligi tizimlarida suv iste'moli samaradorligini oshirish dunyoning ko'plab mintaqalarining haydaladigan erlarida asosiy ustuvorlik hisoblanadi. Suv resurslarining kamayib borishi xavfi ortib borayotgani qurg'oqchilikka chidamlilik va suvdan foydalanish samaradorligini oshirish bilan germplazmani aniqlashni taklif qiladi.
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