ENDOFIT ACHITQILARNING TURLI STRESS SHAROITLARIGA MOSLASHISH XUSUSIYATLARI
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Endofit achitqilar o‘simlik ichki muhitida yashab, turli ekologik stress omillariga moslashgan mikroorganizmlar hisoblanadi. Ushbu tadqiqotda o’simliklarning turli qismlaridan ajratib olingan endofit achitqi shtammlarining harorat, tuzlilik (NaCl) va pH omillariga moslashish xususiyatlari o‘rganildi. Shtammlarning 20 °C, 28 °C va 40 °C haroratlarda biomassa hosil qilish qobiliyati hamda NaCl ning 0–20% konsentratsiyalari va pH 3, 7 va 9 sharoitlarida o‘sish faolligi baholandi. Natijalar barcha shtammlar uchun 28 °C optimal harorat ekanligini ko‘rsatdi. Tuzlilik bo‘yicha 5–15% NaCl sharoitida o‘sish saqlangan bo‘lsa, 20% NaCl faqat ayrim shtammlar uchun bardoshli bo‘ldi. Neytral pH 7 da barcha shtammlar yaxshi o‘sish namoyon etdi, ayrim shtammlar esa ishqoriy muhitga ham moslashganligini ko‘rsatdi. Olingan natijalar endofit achitqilarning ekologik moslashuvchanligini va ularning biotexnologik potensialini tasdiqlaydi.
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