Uranium release from iron-rich acid soils under IPCC elevated CO scenarios: One-sided organic nanocolloidal dominance rather than expected iron oxide colloids.

The global iron-rich acid soils, containing ppm uranium (U), support a population of billions. Because of high sensitivity of U to dissolved inorganic carbonates (DIC), global CO rising may significantly influence mobility of U in soils. However, responses of U release and fractionation between various colloidal and dissolved phases to elevated CO (eCO) were unknown.

Reducing Cd Uptake and Translocation in Wheat Seedlings through Integrated Approaches Using Nanosilicon and Extracellular Polymeric Substances.

Cadmium (Cd) contamination severely threatens wheat productivity and global food safety. While traditional silicon amendments partially alleviate Cd toxicity, their limited efficacy necessitates more robust solutions. This study developed an innovative strategy integrating foliar-applied nanosilicon (SiNP) with soil-based microbial extracellular polymeric substances (EPS) to combat Cd stress in wheat by analyzing physiological responses.

Distribution and diversity of cultured endophytic fungi in Maxim. at different altitudes on the northeastern Qinghai-Tibetan Plateau.

Endophytic fungi are a crucial microbial resource that can influence plant growth and development through their interactions with host plants. Maxim. is an important traditional Tibetan herb used to treat a range of diseases in the Qinghai-Tibetan region.

Improved production of andrimid in Erwinia persicina BST187 strain by fermentation optimization.

Background: Andrimid is reported to be a novel kind of polyketide-nonribosomal peptide hybrid product (PK-NRPs) that inhibits fatty acid biosynthesis in bacteria. Considering its great potential in biomedicine and biofarming, intensive studies have been conducted to increase the production of andrimid to overcome the excessive costs of chemosynthesis. In screening for species with broad-spectrum antibacterial activity, we detected andrimid in the fermentation products of Erwinia persicina BST187.

Fine-tuning gene expression of regulator AdmX for improved biosynthesis of andrimid in Erwinia persicina BST187.

Andrimid is a potent antibiotic that inhibits acetyl-CoA carboxylase. However, its low biological yield and complex chemical synthesis have hindered its large-scale application. In this study, we found that the LysR-type transcriptional activator AdmX controls andrimid yield by adjusting its expression level in the andrimid-producing bacterium Erwinia persicina strain BST187.

Alkalization-induced disintegration increased redox activity of solid humic acids and its soil biogeochemical implications.

Solid humic acids (HA) plays a significant role in maintaining soil ecosystem services, especially in alkaline soil. The unique chemical structures and electrochemical properties are the cores that HA works. In this study, the alkalization-induced variations of particle morphology, functional groups and redox activity of HA were investigated and its soil biogeochemical implications were discussed.

Affinity-based alleviation of dissolved organic matter (DOM) on tetracycline toxicity to photosynthesis of green algae Chlorella vulgaris: roles of hydrophilic and hydrophobic DOM.

The environmental fate and toxic effects of antibiotics such as tetracycline (TC) could be influenced by the ubiquitous dissolved organic matter (DOM). However, DOM from different origins has different hydrophilic and hydrophobic properties. It is still unknown the effects of hydrophilic and hydrophobic DOM on the toxic effect of TC.

Electrochemical properties of humic acid and its novel applications: A tip of the iceberg.

The widely existed humic acid (HA) with abundant redox-active groups has been considered to play an important role in biogeochemistry in sediments and soils. Recent studies reported that HA showed great performance in terms of electron transfer capacity (up to HA = 94 mmol e/mol C, HA = 42 mmol e/mol C). Since HA is widely available, inexpensive and environmentally friendly, the electrochemistry of HA has been explored to apply in many fields, such as environmental remediation, detection sensor and energy storage.

Protective-mechanism-exclusive thermal stability modes of soil organic matter: Novel implication for wildfire effect on soil organic carbon.

Stability of soil organic matter (SOM) is considered to be governed by different protection mechanisms including physical protection (PP), biochemical protection (BCP) and physical plus biochemical protection (PBCP). The thermostability of SOM protected by different mechanisms is unknown, despite its importance for understanding the stability of soil organic carbon (SOC) under frequently occurred wildfires. In this study, we reported for the first time that pyrolysis of SOM under different protection mechanisms in three types of soil (shrub soil, cultivated soil, and meadow soil) followed their own distinct modes regardless of soil type.

Chemical structure and nanomechanics relevant electrochemistry of solid-phase humic acid along a typical forest-river-paddy landscape section in eastern China and its environmental implications.

Solid-phase humic acid (HA) plays a critical role in global carbon cycle and redox biogeochemistry of topsoil, because of its unique physicochemical properties, including electrochemical property. In this study, topsoil HA along a typical forest-river-paddy landscape section in eastern China was investigated in the aspects of electrochemical property, chemical structure and nanomechanics, and their relationship. Nano-size HA particles were extracted from topsoil of paddy soil (PS-HA), forest soil (FS-HA) and riverside sediment (RS-HA).

Quantitative analysis of the profiles of twelve major compounds in Gentiana straminea Maxim. Roots by LC-MS/MS in an extensive germplasm survey in the Qinghai-Tibetan plateau.

Ethnobotanical Relevance: Gentiana straminea Maxim. is a well-known Tibetan traditional herb, which has been used to treat rheumatic arthritis, iceteric hepatitis, and other diseases for thousands years. However, there is still lack of comprehensive active constituents profiling of this species throughout the Qinghai-Tibet Plateau (QTP).

Characterization of the complete chloroplast genome of traditional Chinese herb, Nakai. (Solanaceae).

Nakai. (Solanaceae) is a traditional Chinese medicine and animal fodder in Asian continent. Here, the complete chloroplast genome sequence of was determined by the Illumina Hiseq technology.

Complete chloroplast genome of (Papaveraceae).

(Maxim.) Franch is a traditional Tibetan medicinal material. In this study, we sequenced and assembled the complete chloroplast genome of .

Characterization of the complete chloroplast genome of traditional Tibetan herb, Maxim. (Polygonaceae).

The complete chloroplast genome sequence of traditional Tibetan herb, Maxim. was analyzed. The complete chloroplast genome of is 162,213 bp in size and has a 27.

Comparison of Profiling of Hairy Root of Two Tibetan Medicinal Plants Przewalskia tangutica Maxim. and Anisodus tanguticus Maxim.

Background: Tropane Alkaloids (TAs) are important drugs for curing many diseases in the medical industry.

Methods: To sustainably exploit TA resources in endangered traditional Tibetan herbs, the hairy root (HR) systems of Przewalskia tangutica Maxim. and Anisodus tanguticus Maxim.

Solitary Calcified Nodules as the Cause of Carpal Tunnel Syndrome: Two Case Reports and Literature Reviews.

Solitary calcified nodule-related carpal tunnel syndrome (CTS) is rare and easy to be misdiagnosed owing to the high incidence of primary CTS. Release of the transverse carpal ligament without removal of the mass leads to persistence of the symptoms and subsequent complications like wasting of the thenar muscles. Here, we report two cases of solitary calcified nodule-related CTS and discuss the role of ultrasound in preventing misdiagnosis.