نتایج جستجو برای: aerobic cultivation
تعداد نتایج: 67026 فیلتر نتایج به سال:
UNLABELLED The yeast Pichia pastoris is a widely used host for recombinant protein production. Understanding its physiology at extremely low growth rates is a first step in the direction of decoupling product formation from cellular growth and therefore of biotechnological relevance. Retentostat cultivation is an excellent tool for studying microbes at extremely low specific growth rates but ha...
BACKGROUND Single-use rocking-motion-type bag bioreactors provide advantages compared to standard stirred tank bioreactors by decreased contamination risks, reduction of cleaning and sterilization time, lower investment costs, and simple and cheaper validation. Currently, they are widely used for cell cultures although their use for small and medium scale production of recombinant proteins with...
INTRODUCTION The objectives of this study were: 1) to determine the amniotic fluid (AF) microbiology of patients with the diagnosis of clinical chorioamnionitis at term using both cultivation and molecular techniques; and 2) to examine the relationship between intra-amniotic inflammation with and without microorganisms and placental lesions consistent with acute AF infection. METHODS The AF s...
Fe(II)-oxidizing aerobic bacteria are poorly understood, due in part to the difficulties involved in laboratory cultivation. Specific challenges include (i) providing a steady supply of electrons as Fe(II) while (ii) managing rapid formation of insoluble Fe(III) oxide precipitates and (iii) maintaining oxygen concentrations in the micromolar range to minimize abiotic Fe(II) oxidation. Electroch...
I n the early 2000s, the realization that a significant fraction of the so-called heterotrophic marine bacterioplankton is capable of phototrophy has challenged our views of the carbon and energy budgets in the oceans (1) and, consequently, the biosphere. Because of their widespread occurrence and high abundance, bacterioplankton represent large pools of major elements and are catalysts in many...
problem in major rice growing areas where there is acute scarcity of water and rainfed cultivation depends on the seasonal rainfall. So, order to overcome for cultivation, breeders have made prompt efforts breed genotypes which can tolerate drought stress condition. develop such an efficient breeding programme, selecting plants with desirable root characters one objectives that enables withstan...
This study compared the impact and uptake of root-administered CeO2 nanoparticles (NPs) in rice growing under flooded aerobic soil conditions, which are two water regimes commonly used for cultivation. NPs at 100 mg/kg improved photosynthesis plant growth by reducing oxidative damage enhancing tolerance to stress, while a higher concentration (500 mg/kg) negatively affected growth. More signifi...
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