plackett-burman design was used for selection of important media components such as carbon and nitrogen sources and minerals which affect poly(hydroxybutyrate) production and cell growth of methylobacterium extorquens dsmz 1340. among the studied variables, nitrogen and phosphorus sources, mgso4 and most of the trace elements were found to be significant variables for phb production from methan...

Abstract. Although the anthropogenic emissions of SO2 have decreased significantly in China, decrease SO42- PM2.5 is much smaller than that SO2. This implies an enhanced formation rate ambient air, and mechanism still under debate. work investigated particulate sulfate based on statistical analysis long-term observations Shijiazhuang Beijing supported with flow tube experiments. Our main findin...

The optimization of micropropagation for blueberries is crucial due to the growing blueberry industry and demand plantlets. This study focused on four stages: explant sterilization, in vitro establishment, proliferation, ex rooting, aiming establish an efficient propagation system southern highbush cultivar ‘ZY09’. most effective sterilization method was a 60 s treatment with 75% ethanol 5 min ...

Salvia miltiorrhiza B., an herb used in traditional Chinese medicine, has been widely to prevent and treat cardiovascular other diseases. Currently, the majority of medicinal plants US are imported from foreign countries, which involves transportation, quality control, issues. The objective this study was investigate effect nitrogen fertilization on growth content tanshinone I, IIA, cryptotansh...

During the COVID-19 pandemic, lockdown reduced anthropogenic emissions of NO2 in Paris. concentrations recorded 2020 were lowest they have been past 5 years. Despite these low-NO2 levels, Paris experienced PM2.5 pollution episodes, which investigated here based on multi-species and multi-platform measurements. Ammonia (NH3) measurements over Paris, derived from a mini-DOAS (differential optical...

ZnO films prepared on glass substrates at T = 80 °C ± 3 using the chemical bath deposition technical. The precursor solutions was KOH (0.5 M), NH4NO3 (1.5 M) three different Zn(NO3)2 (0.2 M, 0.3 0.4 concentration. morphology is investigated by Scanning Electron Microscopy (SEM) and images shows porous matrix with cavities of size, javelin tretrap. According to XRD diffractograms, all nanocrysta...

Clonal micro-propagation is of particular importance in the transition to virus-free gardening. The problems vitro cultivation are closely related mineral nutrition, presence growth hormones and varietal features plants. purpose research was study patterns responses studied genotypes fruit berry crops effect various nutrient media. objects were varieties garden strawberries, blackberries, pears...

Phytotelmata, the water-filled habitats in pitcher plants, bromeliad tanks, and tree-holes, host multitrophic food webs that are model experimental systems for studying food-web structure dynamics. However, plant usually is considered simply as an inert container, not interacting part of web. We used a manipulative field experiment with response-surface design to determine effects nutrient enri...

The paired Fluvisol and cereal samples in both the field screening controlled experiments are reported to elucidate soil–crop relationship for As, Cd, Pb relation changing contamination levels. Significant varietal differences plant uptake were observed crop type (barley, triticale) harvested part of (oat shoots grain). When parametrizing stepwise regression models, inclusion soil properties of...