Assembly and comparative analysis of the complete mitochondrial genome of Fritillaria ussuriensis Maxim. (Liliales: Liliaceae), an endangered medicinal plant.

Background: Fritillaria ussuriensis is an endangered medicinal plant known for its notable therapeutic properties. Unfortunately, its population has drastically declined due to the destruction of forest habitats. Thus, effectively protecting F.

Probing the occurrence, sources and cancer risk assessment of polycyclic aromatic hydrocarbons in PM in a humid metropolitan city in China.

Fifty-two consecutive PM samples from December 2021 to February 2022 (the whole winter) were collected in the center of Chongqing, a humid metropolitan city in China. These samples were analysed for the 16 USEPA priority polycyclic aromatic hydrocarbons (16 PAHs) to explore their composition and sources, and to assess their cancer risks to humans. The total concentrations of the 16 PAHs (ng m) ranged from 16.

Eliminate the hardware: Mobile terminals-oriented food recognition and weight estimation system.

Food recognition and weight estimation based on image methods have always been hotspots in the field of computer vision and medical nutrition, and have good application prospects in digital nutrition therapy and health detection. With the development of deep learning technology, image-based recognition technology has also rapidly extended to various fields, such as agricultural pests, disease identification, tumor marker recognition, wound severity judgment, road wear recognition, and food safety detection. This article proposes a non-wearable food recognition and weight estimation system (nWFWS) to identify the food type and food weight in the target recognition area smartphones, so to assist clinical patients and physicians in monitoring diet-related health conditions.

The complete chloroplast genome sequence of (L.) H. Gross: a medicinal plant.

(L.) H. Gross is an herbal medicine with a long history of common use in China.

Inactivation and genome damage of rotavirus and a human norovirus surrogate by monochloramine treatment and sequential application with UV.

The inactivation efficacy by monochloramine for disinfecting gastroenteritis-causing rotaviruses (RV) and Tulane viruses (TV), a surrogate for noroviruses, were evaluated in this study. In addition, the strategies for improving the disinfection efficiency of monochloramine by raising the temperature and sequentially implementing UV irradiation were investigated. The results showed that monochloramine was more effective in the inactivation of TV than RV.

Deposition kinetics of bacteriophage MS2 on Microcystis aeruginosa and kaolin surface.

Waterborne virus contamination might easily adsorb on the organic or inorganic surface in the complex aquatic environment. A quartz crystal microbalance coupled with dissipation monitoring was used to investigate the effects of the ionic strength of monovalent cation and divalent cation and pH on the deposition kinetics of bacteriophage MS2 on silica surface coated with Microcystis aeruginosa or kaolin, which represents organic or inorganic particle, respectively. Derjaguin-Landau-Verwey-Overbeek theory was used to illustrate the deposition mechanisms of MS2.

Comparison of the formation of N-nitrosodimethylamine (NDMA) from algae organic matter by chlor(am)ination and UV irradiation.

Microcystis aeruginosa (M. aeruginosa, blue-green algae) blooms frequently in drinking water reservoirs and subsequently causes the formation of disinfection by-products (DBPs) after disinfection, which may pose a potential health risk. In this study, the formation of N-nitrosodimethylamine (NDMA) was evaluated from algal organic matter (AOM) including extracellular organic matter (EOM) and intracellular organic matter (IOM) during the disinfection process of chlorination, chloramination, or ultraviolet (UV) irradiation.

The callus formation capacity of strawberry leaf explant is modulated by DNA methylation.

Shoot regeneration from leaf tissue requires de-differentiation of cells from a highly differentiated state into an active dividing state, but how this physiological transition occurs and is regulated especially at epigenetic level remains obscure. Here we have characterized the DNA methylome represented by 5-methylcytosine (5mC) in leaf and the callus tissue derived from the leaf explant of woodland strawberry Fragaria vesca. We detected an overall increase of DNA methylation and distinct 5mC enrichment patterns in the CG, CHG and CHH sequence contexts in genetic and transposable elements.

Life-threatening complications after microvascular decompression procedure: Lessons from a consecutive series of 596 patients.

The microvascular decompression procedure (MVD) is widely utilized on patients with neurovascular compression syndromes, such as trigeminal neuralgia, hemifacial spasm and glossopharyngeal neuralgia, which have failed medical therapy. However, surgical complications are an ongoing problem. We retrospectively reviewed a total of 596 patients undergoing MVD in the Affiliated Hospital of Qingdao University from January 2008 to December 2018.

Evolution and roles of cytokinin genes in angiosperms 2: Do ancient s play housekeeping roles while non-ancient s play regulatory roles?

Cytokinin oxidase/dehydrogenase (CKX) is a key enzyme responsible for the degradation of endogenous cytokinins. However, the origins and roles of genes in angiosperm evolution remain unclear. Based on comprehensive bioinformatic and transgenic plant analyses, we demonstrate that the s of land plants most likely originated from an ancient chlamydial endosymbiont during primary endosymbiosis.

Evolution and roles of cytokinin genes in angiosperms 1: Do ancient play housekeeping while non-ancient play regulatory roles?

Isopentenyltransferase (IPT) genes, including those encoding s and s, control the rate-limiting steps of the biosynthesis of -(Δ-isopentenyl)adenine (iP)-type and -zeatin (Z)-type cytokinins and -zeatin (Z)-type cytokinins, respectively. However, the evolution and roles of these s in angiosperms are not well understood. Here, we report comprehensive analyses of the origins, evolution, expression patterns, and possible roles of and s in angiosperms.

Characterization and Expression Analysis of Genes in Suggest Different Divergences of Tandem Duplicates.

Ethylene-responsive factors (ERFs) play important roles in plant growth and development and in responses to abiotic stresses. However, little information was available about the genes in woodland strawberry (), a genetic model plant for the genus and Rosaceae family. In this study, 91 genes were identified, including 35 arrayed in tandem, indicating that tandem duplication is a major mechanism for the expansion of the FveERF family.

Identification and characterization of tomato gibberellin 2-oxidases (GA2oxs) and effects of fruit-specific overexpression on fruit and seed growth and development.

Gibberellins (GAs) play a crucial role in growth and development of the tomato fruit. Previously published studies focusing on the effect of GAs on tomato fruits used chemical treatments, constitutive overexpression or silencing of GA biosynthetic and catabolic genes globally throughout the plant. Fruit-specific overexpression of GA catabolic enzyme genes (), however, may provide an alternative method to study the role of endogenous GAs on the fruit development.