AZOT FIKSATSIYA VA FOSFAT MOBILIZATSIYA QILUVCHI BAKTERIYA SHTAMM VA IZOLYATLARINING MORFOLOGIK XUSUSIYATLARI
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Ushbu tadqiqotda Bacillus, Priestia va Pseudomonas turkumlariga mansub 7 ta shtamm va 3 ta izolyatning morfologik xususiyatlari Gramm usuli bo‘yash va mikroskopik tahlillar yordamida o‘rganildi. Natijalar shuni ko‘rsatdiki, 7 ta shtammdan 4 tasi (P. endophytica N19, B. paralicheniformis M11, B. licheniformis X30, P. endophytica I16) hamda 3 ta izolyatdan 2 tasi (A8, X22) gramm-musbat bo‘lib, qolganlari gramm-manfiy xususiyatga ega ekanligi aniqlandi. Hujayra shakli bo‘yicha 6 ta shtamm tayoqchasimon, 1 tasi (P. fulva Q11) ovalsimon tayoqchasimon, izolyatlar orasida esa 2 tasi ovalsimon tayoqchasimon (A8, X22), 1 tasi (N4) ingichka tayoqchasimon shaklda bo‘ldi. Spora hosil qilish xususiyatiga ko‘ra, 3 ta shtamm (P. endophytica N19 – subterminal, N6 – terminal, I16 – subterminal) va 1 ta izolyatda (X22 – subterminal) sporalanish kuzatildi. Ushbu ma’lumotlar bakteriyalarning morfologik farqlari ularning ekologik barqarorligi, yashovchanligi va biotexnologik qo‘llanilish imkoniyatlarini belgilashda muhim diagnostik mezon bo‘lib xizmat qilishini ko‘rsatdi.
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