Peranan Pompa Proton pada Pertumbuhan Escherichia coli di Lingkungan pH Alkali
نویسندگان
چکیده
منابع مشابه
Cation/proton antiport systems in Escherichia coli. Solubilization and reconstitution of delta pH-driven sodium/proton and calcium/proton antiporters.
Uptake of 22Na+ and 45Ca2+ into everted membrane vesicles from Escherichia coli was measured with imposed transmembrane pH gradients, acid interior, as driving force. Vesicles loaded with 0.5 M KCl were diluted into 0.5 M choline chloride to create a potassium gradient. Addition of nigericin to produce K+/H+ exchange resulted in formation of a pH gradient. This imposed gradient was capable of d...
متن کاملCation/proton antiport systems in Escherichia coli.
The calcium/proton antiporter of Escherichia coli was characterized by measurement of the effect of divalent cations on the respiration-coupled quenching of the fluorescence of quinacrine or 9-aminoacridine in everted membrane vesicles. Energy-linked quenching of the fluorescence of aminoacridines is dependent on proton uptake into everted vesicles and provides an indirect assay for measurement...
متن کاملAscites Incidence in Broilers
Gejala umum terjadinya sindrom ascites pada ayam broiler adalah berupa akumulasi cairan yang berlebihan di rongga peritoneal yang menyebabkan peningkatan tekanan pembuluh arteri pulmoner. Kondisi ini dapat menyebabkan kematian akibat kurangnya suplai oksigen untuk kebutuhan metabolis tubuh. Angka kematian akibat Ascites pada ayam broiler adalah sebesar 5%. Sindrom ascites dapat dicegah dengan m...
متن کاملDevelopment of a Simulated Environment for Human- Robot Interaction
Skenario interaksi manusia-robot adalah sangat rumit dan memerlukan definisi yang tepat dari variabel lingkungan untuk pengujian yang ketat aspek-aspek berbeda perilaku robot. Kondisi lingkungan mempengaruhi perilaku manusia dan robot, sehingga manusia dan robot merespon berbeda pada kondisi akustik atau pencahayaan berbeda. Pada penelitian ini dilakukan eksperimen berulang-ulang dengan manusia...
متن کاملproton-motive force on lactose uptake in Escherichia coli
The relationship between the steady state lactose accumulation (APia) and the magnitude of the membrane potential (Ay/) and pH gradient (ApH) has been studied at pHO5.5 and pHO7.5. An attempt has been made to differentiate between two possible means by which lactose accumulation may be reduced below the proton-motive force (Ap). Firstly, that Aqt and ApH are not equivalent in driving lactose tr...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Jurnal Sain Peternakan Indonesia
سال: 2020
ISSN: 2528-7109,1978-3000
DOI: 10.31186/jspi.id.15.1.84-90