Predation of oomycetes by myxobacteria via a specialized CAZyme system arising from adaptive evolution.

As social micropredators, myxobacteria are studied for their abilities to prey on bacteria and fungi. However, their predation of oomycetes has received little attention. Here, we show that Archangium sp.

Effects of CeO Nanoparticles on Nutritional Quality of Two Crop Plants, Corn ( L.) and Soybean ( L.).

With the widespread applications of manufactured nanoparticles (NPs), there are increasing concerns about their potential adverse effects on the environment and living systems. Many studies demonstrated that NPs could significantly affect the growth and development of crop plants. However, knowledge regarding the impacts of NPs on crop quality is rather limited.

Effects of ceria nanoparticles and CeCl on growth, physiological and biochemical parameters of corn (Zea mays) plants grown in soil.

The release of toxic ions from metal-based nanoparticles (NPs) may play an important role in biological effects of NPs. In this life cycle study, physiological and biochemical responses of soil-grown corn (Zea mays) plants exposed to ceria NPs and its ionic counterparts Ce ions at 0, 25, 75 and 225 mg Ce/kg were investigated. Both treatments tended to reduce the fresh weight and height of the plants at 28 days after sowing (DAS), and delay silk appearance and finally decrease fruit weight at harvest.

Characterization and activity enhancement of a novel exo-type agarase Aga575 from Aquimarina agarilytica ZC1.

The novel β-agarase gene aga575 from the agarolytic bacterium Aquimarina agarilytica ZC1 is composed of 2142 bp, and the encoded protein Aga575 has the highest amino acid sequence homology of only 65.2% with known agarases. Though carrying a domain of glycoside hydrolase family 42 in the C-terminal, Aga575 should belong to glycoside hydrolase family 50 according to the phylogenetic analysis.

Heterologous expression and characterization of a novel glycoside hydrolase family 55 β-1,3-glucanase, AcGluA, from Archangium sp. strain AC19.

Some microbial-associated molecular patterns (MAMPs), like glucan oligosaccharides, can be recognized by pattern recognition receptors (PRRs) of plant to elicit further immunity response. In this study, a novel glycoside hydrolase family 55 β-1,3-glucanase (AcGluA) from Archangium sp. strain AC19 was cloned and expressed in Escherichia coli.

Expression and characterization of 1,4-α-glucan branching enzyme from Microvirga sp. MC18 and its application in the preparation of slowly digestible starch.

Nutraceuticals containing modified starch with increased content of slowly-digestible starch (SDS) may reduce the prevalence of obesity, diabetes and cardiovascular diseases due to its slow digestion rate. Enzymatic methods for the preparation of modified starch have attracted increasing attention because of their low environmental impact, safety and specificity. In this study, the efficient glucan branching enzyme McGBE from Microvirga sp.

Expression and characterization of a novel trehalase from Microvirga sp. strain MC18.

Trehalase catalyzes the hydrolysis of trehalose into two glucose molecules and is present in nearly all tissues in various forms. In this study, a putative bacterial trehalase gene, encoding a glycoside hydrolase family 15 (GH15) protein was identified in Microvirga sp. strain MC18 and heterologously expressed in E.

Enzymatic properties of an efficient glucan branching enzyme and its potential application in starch modification.

Glucan branching enzymes (GBEs, EC 2.4.1.

Endometriosis masquerading as Crohn's disease in a patient with acute small bowel obstruction.

A 45-year-old woman, a smoker, presented acutely with subacute small bowel obstruction. Abdominal CT scan showed features of ileocaecal Crohn's disease. She was treated with high dose steroids and her symptoms rapidly settled.

Photocatalytic degradation of methyl orange by PbXO4 (X=Mo, W).

PbMoO4 and PbWO4 are prepared by the simple precipitation method in this work, they show the photocatalytic activities for the degradation of methyl orange in water under the UV light illumination. In the above photocatalytic degradation processes, methyl orange concentration decreases quickly, the total organic carbon (TOC) decreases slowly; inorganic ions (SO4(2-), NO3(-), NO2(-), NH4(+)) can be formed and measured by the ion chromatograph; the pH value in the systems decreases gradually; a small quantity of HO˙(-)·can be generated and measured by the terephthalic acid (TA) indirectly. In order to estimate the roles of active species during the above photocatalytic degradation processes, isopropanol, (NH4)2C2O4, and 1,4-benzoquinone as the scavengers for HO˙, h(+), O2˙(-) are introduced into the systems, respectively.