Sideroforlar ko’plab bakteriyalar, zamburug’lar va o’simliklar tomonidan Fe (III) xelyatsiyasi uchun sintezlanadi
va ajralib chiqadi. Turli xil o’simliklarning o’sishini rag’batlantiruvchi bakteriyalar (PGPB) rizosferani kolonizatsiya qiladi
va o’simliklar tomonidan temirning assimilyatsiyasiga hissa qo’shadi. Ushbu mikroorganizmlar temir tanqisligi sharoitida Fe
ionlarini ishlab chiqarish mexanizmlariga ega. Tegishli sharoitlarda ular sideroforlarni sintez qiladi va chiqaradi, shu bilan
temirning biologik mavjudligini oshiradi va tartibga soladi. hayot aylanishi, ularning biosintezidan Fe-siderofor kompleksining
parchalanishigacha; bakteriyalarda siderofor biosintezining uchta mexanizmi; bakteriyalarning sideroforlar va siderofor hosil
qiluvchi faolligini tahlil qilish usullari va bakteriya koloniyalarining siderofor hosil qiluvchi faolligini tekshirish usullari. Bakteriyalar
tomonidan siderofor sintezining biokimyoviy, molekulyar-biologik va fiziologik xususiyatlarini yanada tahlil qilish va
ulardan o’simliklar tomonidan foydalanish barqaror qishloq xo’jaligi uchun juda muhim bo’lgan tuproq unumdorligini oshirish
va o’simlik biomassasini oshirish uchun samarali mikrobiologik preparatlarni yaratishga imkon beradi.
Sideroforlar ko’plab bakteriyalar, zamburug’lar va o’simliklar tomonidan Fe (III) xelyatsiyasi uchun sintezlanadi
va ajralib chiqadi. Turli xil o’simliklarning o’sishini rag’batlantiruvchi bakteriyalar (PGPB) rizosferani kolonizatsiya qiladi
va o’simliklar tomonidan temirning assimilyatsiyasiga hissa qo’shadi. Ushbu mikroorganizmlar temir tanqisligi sharoitida Fe
ionlarini ishlab chiqarish mexanizmlariga ega. Tegishli sharoitlarda ular sideroforlarni sintez qiladi va chiqaradi, shu bilan
temirning biologik mavjudligini oshiradi va tartibga soladi. hayot aylanishi, ularning biosintezidan Fe-siderofor kompleksining
parchalanishigacha; bakteriyalarda siderofor biosintezining uchta mexanizmi; bakteriyalarning sideroforlar va siderofor hosil
qiluvchi faolligini tahlil qilish usullari va bakteriya koloniyalarining siderofor hosil qiluvchi faolligini tekshirish usullari. Bakteriyalar
tomonidan siderofor sintezining biokimyoviy, molekulyar-biologik va fiziologik xususiyatlarini yanada tahlil qilish va
ulardan o’simliklar tomonidan foydalanish barqaror qishloq xo’jaligi uchun juda muhim bo’lgan tuproq unumdorligini oshirish
va o’simlik biomassasini oshirish uchun samarali mikrobiologik preparatlarni yaratishga imkon beradi.
Сидерофоры синтезируются и секретируются многими бактериями, дрожжами, грибами и растениями
для хелатирования Fe (III). Различные бактерии, способствующие росту растений (PGPB), колонизируют ризосферу
и способствуют усвоению железа растениями. Эти микроорганизмы обладают механизмами для производства ионов
Fe в условиях дефицита железа. При соответствующих условиях они синтезируют и выделяют сидерофоры, тем
самым увеличивая и регулируя биодоступность железа. Здесь мы обсуждаем разнообразную химическую природу
сидерофоров, продуцируемых бактериями корней растений; жизненный цикл сидерофоров от их биосинтеза до
деградации комплекса Fe–сидерофор; три механизма биосинтеза сидерофоров в бактериях; методы анализа
сидерофоров и сидерофорпродуцирующей активности бактерий и методы скрининга сидерофорпродуцирующей
активности бактериальных колоний. Дальнейший анализ биохимических, молекулярно-биологических и физиологических
особенностей синтеза сидерофоров бактериями и их использования растениями позволит создать эффективные
микробиологические препараты для повышения плодородия почв и увеличения биомассы растений, что весьма актуально
для устойчивого земледелия.
Siderophores are synthesized and secreted by many bacteria, yeasts, fungi, and plants for Fe (III) chelation. A variety
of plant-growth-promoting bacteria (PGPB) colonize the rhizosphere and contribute to iron assimilation by plants. These
microorganisms possess mechanisms to produce Fe ions under iron-deficient conditions.. discuss the diverse chemical nature
of siderophores produced by plant root bacteria; the life cycle of siderophores, from their biosynthesis to the Fe–siderophore
complex degradation; three mechanisms of siderophore biosynthesis in bacteria; the methods for analyzing siderophores and
the siderophore-producing activity of bacteria and the methods for screening the siderophore-producing activity of bacterial
colonies. Further analysis of biochemical, molecular–biological, and physiological features of siderophore synthesis by bacteria
and their use by plants will allow one to create effective microbiological preparations for improving soil fertility and increasing
plant biomass, which is highly relevant for sustainable agriculture.
| № | Author name | position | Name of organisation |
|---|---|---|---|
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