Iron (Fe) deficiency is a critical agricultural problem, especially in calcareous soil, which is distributed worldwide. Rice plants take up Fe(II) from soil through a OsIRT1 transporter (Strategy I-related system) and also take up Fe(III) via a phytosiderophore-based system (Strategy II system). However, rice plants are susceptible to low-Fe conditions because they have low Fe(III) reduction ac...

BACKGROUND Yeast biomass, mainly composed of proteins and polysaccharides (mannans ?-glucans), has been proposed to develop films. pH can affect the solubility polysaccharides, structure cell wall, interactions between proteins. Considering potential impact these effects, yeast film-forming dispersions was studied from 4 11. RESULTS In tensile tests, samples increased their elongation by increa...

Selenium enriched yeast is the most prevalent source of organic selenium for humans and animals. In this study, an effective capillary zone electrophoresis method was established to quantify total in biomass by measuring selenite level post incubated culture media. The detection could be achieved within 7.9 min under condition a mixture buffer 85 mM Na2HPO4 0.5 CTAB (pH 9.37), –5 kV separation ...

UNLABELLED BACKGROUND The inherent recalcitrance of lignocellulosic biomass is one of the major economic hurdles for the production of fuels and chemicals from biomass. Additionally, lignin is recognized as having a negative impact on enzymatic hydrolysis of biomass, and as a result much interest has been placed on modifying the lignin pathway to improve bioconversion of lignocellulosic feed...

Recent results have demonstrated that live yeast in diets improved gut maturation in sea bass larvae. In this study, we tested the absence and two levels of live yeast in sea bass larvae diets. Specimens were fed from time of mouth opening to 37 days after hatching a diet of 0%, 1.1%, or 5.7% wet weight of live yeast (Debaryomyces hansenii CBS 8339). Yeast incorporation improved survival 10%, a...

A modified thermal asymmetric interlaced polymerase chain reaction was performed to obtain the first yeast laccase gene (YlLac) from the isolated yeast Yarrowia lipolytica. The 1557-bp full-length cDNA of YlLac encoded a mature laccase protein containing 519 amino acids preceded by a signal peptide of 19 amino acids, and the YlLac gene was expressed in the yeast Pichia pastoris. YlLac is a mono...

UNLABELLED A major challenge for the production of ethanol from biomass-derived feedstocks is to develop yeasts that can sustain growth under the variety of inhibitory conditions present in the production process, e.g., high osmolality, high ethanol titers, and/or elevated temperatures (≥ 40 °C). Using adaptive laboratory evolution, we previously isolated seven Saccharomyces cerevisiae strains ...

Abstract The benefit of bioaugmentation activated sludge (AS) with yeasts was tested using AS and wastewaters (WW) that originated from the chemical industry, as well synthetic WW. A stimulating effect Saccharomyces cerevisiae on microbial respiration intensity in shown. added yeast biomass maintained viability AS, an inhibitory BAC Bacilli found; however, addition to reduced this effect.