In a spatial thermal gradient, Caenorhabditis elegans migrates toward and then isothermally tracks near its cultivation temperature. A current model for thermotactic behavior involves a thermophilic drive (involving the neurons AFD and AIY) and cryophilic drive (involving the neuron AIZ) that balance at the cultivation temperature. Here, we analyze the movements of individual worms responding t...

Background Cultivation temperature is a key environmental parameter that influences cell growth and recombinant protein production. Recombinant CHO (rCHO) cells are usually cultivated at 37 °C. Although lowering culture temperature below 37 °C decrease specific growth rate, in many cases, the specific production rate, q, of CHO cells was not enhanced by lowering the culture temperature. Unlike ...

Standard cultivation fails to grow most microorganisms, whereas in situ cultivation allows for the isolation of comparatively diverse and novel microorganisms. Information on similarities and differences in the physiological properties of isolates obtained from in situ cultivation and standard cultivation is limited. Therefore, we used the arctic sediment samples and compared two culture collec...

Microalgal lipid is a promising feedstock for biodiesel production. Effect of cultivation temperature on the growth and lipid accumulation properties of a freshwater microalga Scenedesmus sp. LX1 was studied. Scenedesmus sp. LX1 could grow in a wide range of temperature (10∼30°C), and the growth activation energy was 49.3 kJ·mol(-1). The optimal temperature to produce microalgal biomass and lip...

background: microalgal lipid is a promising feedstock for biodiesel production. the aim of the present study was to investigate the effects of cultivation temperature on the growth and lipid accumulation properties of nannochloropsis oculata microalgae. methods: nannochloropsis oculatacan grow in a wide range of temperatures (5 ~ 35°c). late in the stationary growth phase of microalgae, biomass...

Animals modify behavioral outputs in response to environmental changes. C. elegans exhibits thermotaxis, where well-fed animals show attraction to their cultivation temperature on a thermal gradient without food. We show here that feeding-state-dependent modulation of thermotaxis is a powerful behavioral paradigm for elucidating the mechanism underlying neural plasticity, learning, and memory i...

In this study, the effects of temperature-shift (from 30 to 25 °C) and temperature-constant (at 30 °C) cultivation on the mass of Monascus fuliginosus CG-6 mycelia and concentration of the produced monacolin K (MK) were monitored. The expression levels of the MK biosynthetic genes of M. fuliginosus CG-6 at constant and variable culture temperatures were analysed by real-time quantitative polyme...

23 The nodulation tendency and community structure of indigenous bradyrhizobia on 24 Rj-genotype soybean cultivars at cultivation temperatures of 33/28°C, 28/23°C and 23/18°C, 25 16/8 h (day/night degrees, hours) were investigated using 780 bradyrhizobial DNA samples 26 from an Andosol with 13 soybean cultivars of four Rj-genotypes (non-Rj, Rj2Rj3, Rj4 and 27 Rj2Rj3Rj4). A dendrogram was constr...