Publications by authors named "Liang-ying Mei"
Occupational Exposure to Silica Dust and Silicosis Risk in Chinese Noncoal Mines: Qualitative and Quantitative Risk Assessment.
JMIR Public Health Surveill
September 2024
Article Synopsis
- Silicosis continues to be a significant health issue in China, particularly in noncoal mines, where recent exposure levels and associated risks are not well-documented.
- A study conducted from May to December 2020 assessed silica dust exposure and silicosis risk across multiple noncoal mines and involved detailed analyses using data from miners and dust samples.
- The findings revealed that a substantial percentage of male miners were exposed to high levels of silica dust, indicating a medium risk of silicosis, with predictions suggesting important considerations for health outcomes over the next decade.
Members of (Pucciniaceae, Pucciniales) are known as plant pathogens worldwide, which are characterized by their morphology, host association, and molecular data of various genes. In the present study, 10 specimens of were collected from four herbaceous plants (, and ) in China and identified based on morphology and phylogeny. As a result, 10 samples represent four undescribed species of , viz.
View Article and Find Full Text PDFA serious rust disease was found in Gansu Province, China. The disease incidence is approximately 80-90%. We also found rust disease on both and in the same location.
View Article and Find Full Text PDFis a group of plant fungal pathogens that cause rust diseases on many economically important fruit trees. Most are heteroecious and demicyclic, producing four morphologically diverse spore stages on two taxonomically unrelated host plants, the Cupressaceae and Rosaceae. The complex life cycle and heteroecism make it difficult to investigate the species within .
View Article and Find Full Text PDFand are the only species of genus that parasitize plants belonging to genus (Rosaceae). Systematic revision of the genus and related genera by molecular phylogenetic analyses using nuc rDNA internal transcribed spacer (5.8S-ITS2 = ITS2) and nuc rDNA 28S (28S) sequences indicated that and belong to a group of species that also occur on .
View Article and Find Full Text PDFTranscriptome Analysis of Apple Leaves Infected by the Rust Fungus at Two Sporulation Stages.
Mol Plant Microbe Interact
March 2020
Article Synopsis
- Apple rust disease poses a significant risk to apple orchards, and the study utilizes dual RNA-seq to analyze gene expression in infected leaves during critical stages of fungus development.
- Findings reveal that the apple plant activates detoxication processes early on and later induces secondary metabolism pathways, highlighting a general response to rust infections shared across various rust pathosystems.
- The research uncovers a conserved genetic pattern in the fungus's reproductive stages, along with specific effector proteins involved in the infection process, and also indicates that the rust infection can alter the fungal community on apple leaves.
represents a commercially and ecologically important tree species in China, but suffers from canker diseases in Jiangxi Province. Synnemata, pycnidia and ascomata were discovered on cankered tissues. Strains were obtained from single ascospore or conidium within the fruiting bodies and identified based on morphological comparison and the phylogenetic analyses of partial ITS, LSU, and gene sequences.
View Article and Find Full Text PDFArticle Synopsis
- The study focused on three Gymnosporangium fungi species, which are known plant pathogens, by sequencing the transcriptome of G. japonicum during its life stage on Juniperus chinensis.
- The analysis revealed a conserved genetic program across the species with high expression in energy, translation, and signaling processes, highlighting the active metabolic state of the teliospore stage.
- Specific genes encoding carbohydrate-active enzymes and potential pathogenesis proteins were identified, indicating significant differences and similarities between the species' responses, thus providing insights into the biology of rust fungi and their infective mechanisms.
The Apple-Juniper rust, , is an economically important pathogen of apples and junipers in Asia. The absence of markers has hampered the study of the genetic diversity of this widespread pathogen. In our study, we developed twenty-two novel microsatellite markers for from randomly sequenced regions of the transcriptome, using next-generation sequencing methods.
View Article and Find Full Text PDFBackground: Rust fungi constitute the largest group of plant fungal pathogens. However, a paucity of data, including genomic sequences, transcriptome sequences, and associated molecular markers, hinders the development of inhibitory compounds and prevents their analysis from an evolutionary perspective. Gymnosporangium yamadae and G.
View Article and Find Full Text PDF[Status quo of occupational health monitoring for 1830 migrant workers in a province and analysis of influential factors].
Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi
August 2010