English
Mog'orning ifloslanishi tadqiqotchilarni hujayra madaniyati tajribalarida juda xavotirga soladigan narsalardan biri bo'lib, ko'pincha loyihaning kechikishiga va kam hujayralarning yo'qolishiga olib keladi. Xo'sh, yo'qotishlarni kamaytirish uchun hujayra fabrikalari dagi mog'or bilan ifloslanish bilan qanday kurashish kerak?
Kontaminatsiya haqida hukm: Qo'ziqorinlarning ko'p turlari mavjud bo'lib, ularning aksariyati Aspergillus, Candida albicans, xamirturush, qora mog'ordir. , spora zamburug'lari va boshqalar. Qo'ziqorin bilan ifloslanganidan so'ng, madaniy muhitda ko'pincha ochiq sariq yoki oq suzuvchi narsalar hosil bo'ladi, ular yalang'och ko'zga ko'rinib turadi va osongina aniqlanadi. Madaniyat muhiti odatda qisqa vaqt ichida bulutli bo'lib qoladi. Invertli mikroskop ostida hujayralarni kesib o'tuvchi filamentsimon, dendritik yoki quvursimon gifalarni ko'rish mumkin, ular madaniyat muhitida suzadi. Ko'pgina gifalarni yuqori kattalashtirish ostida shtammlarning zanjirsimon joylashuvida ko'rish mumkin. Candida va xamirturush shtammlari oval shaklga ega va hujayralar bo'ylab va atrofida tarqalib o'sadi. Ba'zida kulturaning tashqi devorida o'sadigan gifalar mikroskopda topilishi mumkin, uni ifloslanish deb atash oson. Shisha tashqarisida mitseliy topilganda, uni o'z vaqtida spirt bilan artib tashlash kerak.
Kontaminatsiyani davolash: Birinchidan, hujayra zavodidagi ifloslantiruvchi moddalar mog'or bilan ifloslanganligini aniqlash kerak. Agar bu mog'or bilan ifloslanganligi tasdiqlansa, ifloslangan hujayralarni imkon qadar tezroq boshqa hujayra liniyalaridan ajratib olish va tajribada ishlatiladigan asbob-uskunalar va reagentlarni bir vaqtning o'zida davolash kerak. Umuman olganda, antibiotiklar va antimitsinlarning yuqori konsentratsiyasi hujayralar yoki hujayra chiziqlariga toksik ta'sir ko'rsatishi mumkin. Shuning uchun antibiotiklar va antimitsinlarning toksikligini keltirib chiqaradigan doza darajasini aniqlash uchun dozaga javob berish tajribalari qo'llaniladi. Bu tilozin kabi antimikotiklarni qabul qilishda ayniqsa muhimdir.
Xulosa qilib aytganda, hujayra fabrikalarida mog'or bilan ifloslanishni davolash yuqoridagi usullar bo'yicha amalga oshirilishi mumkin. Bundan tashqari, hujayra madaniyati tajribalarida turli xil ifloslanishlarni kamaytirish uchun aseptik operatsiyalarni qat'iy bajarish kerak.
The FAI climbed 5.9 percent year-on-year in the first 11 months of 2018, quickening from the 5.7-percent growth in Jan-Oct, the National Bureau of Statistics (NBS) said Friday in an online statement.
The key indicator of investment, dubbed a major growth driver, hit the bottom in August and has since started to rebound steadily.
In the face of emerging economic challenges home and abroad, China has stepped up efforts to stabilize investment, in particular rolling out measures to motivate private investors and channel funds into infrastructure.
Friday's data showed private investment, accounting for more than 60 percent of the total FAI, expanded by a brisk 8.7 percent.
NBS spokesperson Mao Shengyong said funds into weak economic links registered rapid increases as investment in environmental protection and agriculture jumped 42 percent and 12.5 percent respectively, much faster than the average.
In breakdown, investment in high-tech and equipment manufacturing remained vigorous with 16.1-percent and 11.6-percent increases respectively in the first 11 months. Infrastructure investment gained 3.7 percent, staying flat. Investment in property development rose 9.7 percent, also unchanged.