Publications by authors named "Yanhong Qin"

Article Synopsis
  • Epimedium plants, used in traditional Chinese medicine, faced a disease outbreak in August 2022, characterized by large necrotized leaf spots and fungal infections, leading to significant yield losses of over 20%.
  • Observations in Henan and Hubei provinces revealed the spread of white mycelia and sclerotia on infected plants, affecting 16.0% to 28.0% of the crops surveyed.
  • Laboratory analysis of symptomatic tissues resulted in the isolation of twelve fungal strains, which exhibited rapid growth and specific morphological characteristics indicative of their pathogenic potential.
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  • A novel virus named "Rehmannia torradovirus virus" (ReTV) was identified in a crucial medicinal plant native to China, showing symptoms like mosaic patterns and leaf yellowing.
  • High-throughput sequencing techniques were used to obtain complete viral sequences, revealing substantial variations in amino acid alignments compared to known viruses.
  • ReTV was detected in all tested samples, indicating its potential risk to the plant and the need for ongoing monitoring in agricultural settings.
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  • A new virus called Rehmannia Allexivirus virus (ReAV) was identified in a key medicinal plant in China through advanced sequencing methods.
  • The complete genome of ReAV is 7297 nt long, featuring five open reading frames associated with viral functions, and shows a varying degree of genetic similarity with other virus species.
  • The study found that ReAV is prevalent among samples tested, with detection rates between 73.3-81.7%, suggesting it plays a significant role in viral infections of this plant and highlights the need for preventive measures.
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  • Rehmannia glutinosa, or Chinese foxglove, is a key herb in traditional Chinese medicine, known for its various beneficial effects on biological systems.* -
  • In May 2022, a leaf blight disease affected approximately 54% of R. glutinosa seedlings in a nursery in Henan Province, China, causing severe leaf damage and plant mortality.* -
  • Researchers isolated the pathogen responsible for the disease through controlled experiments, eventually identifying specific fungal isolates that were able to replicate the symptoms in healthy plants.*
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  • - The Chinese yam (Dioscorea polystachya) is a valuable agricultural crop in China, suffering from basal stem rot disease, which affected about 65% of tubers in a 10-hectare field in Henan province as of September 2021.
  • - Disease symptoms include dark brown lesions on the stems that eventually cause necrotic indentations, prompting researchers to isolate pathogenic fungi from diseased samples.
  • - A total of 44 Fusarium isolates were identified, classifying them into three groups (F. oxysporum, F. solani, and F. proliferatum), with specific morphological characteristics noted for three representative isolates (SYJJ6, SYJJ9, and SYJJ10).
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Root rot as a result of is a common root disease caused by spp., which has become one of the main diseases affecting the production of . Currently, several hypovirulence-related mycoviruses have been identified in many phytopathogenic fungi, including spp.

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Background: Gynostemma pentaphyllum, an ancient Chinese herbal medicine, serves as a natural source of gypenosides with significant medicinal properties. Basic helix-loop-helix (bHLH) transcription factors play pivotal roles in numerous biological processes, especially in the regulation of secondary metabolism in plants. However, the characteristics and functions of the bHLH genes in G.

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  • Honeysuckle flower (Lonicera japonica) is a traditional medicinal plant native to China, Japan, and Korea, but it faced a significant disease outbreak in Henan province during late summer to fall of 2021 and 2022, with over 85% of the plants showing leaf spot symptoms.
  • The symptoms began as small brown spots that developed into larger lesions with yellow haloes, affecting the plants' ability to photosynthesize.
  • The disease was linked to the fungus Cercospora cf. flagellaris, identified through morphological analysis and genomic DNA sequencing, highlighting the need for monitoring and managing plant health in agricultural practices.
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causes vascular wilt in more than 100 plant species, resulting in massive economic losses. A deep understanding of the mechanisms of pathogenicity and symptom induction by this fungus is necessary to control crop wilt. The YjeF protein has been proven to function in cellular metabolism damage-repair in Escherichia coli and to play an important role in Edc3 (enhancer of the mRNA decapping 3) function in , but no studies have been reported on related functions in plant pathogenic fungi.

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The present study aimed to investigate the composition of the terpene synthase(TPS) gene family in Gynostemma pentaphyllum and its role in abiotic stresses. The G. pentaphyllum TPS gene family was identified and analyzed at the genome-wide level using bioinformatics analysis, and the expression patterns of these family members were analyzed in different tissues of G.

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We study the relationship between the structures of the nonlinear localized waves and the distribution characteristics of the modulation stability regime in a nonlinear fiber with both third-order and fourth-order effects. On the background frequency and background amplitude plane, the modulation stability region consists of two symmetric curves on the left and right and a point on the symmetry axis. We find that the higher-order excitation characteristics are obviously different at different positions in the modulation stability region.

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Dark soliton is usually seen as one of the simplest topological solitons, due to phase shift across its intensity dip. We investigate phase characters of single-valley dark soliton (SVDS) and double-valley dark soliton (DVDS) in a single-mode optical fiber with third-order dispersion and delayed nonlinear response. Notably, two different phase shifts can produce an SVDS with the same velocity under some conditions, which is not admitted for a dark soliton with only the second-order dispersion and self-phase modulation, whose phase shift and velocity is a one-to-one match.

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Fruit color, as an important appearance attribute, is crucial for attracting consumers. However, the underlying mechanism regulating mature fruit color formation in Kadsura coccinea remains unclear. Here, a comprehensive metabolomics and transcriptomics analysis was performed to investigate the molecular mechanisms of anthocyanin accumulation between two K.

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Article Synopsis
  • Yam (Dioscorea opposita) is an important crop in China primarily grown for nutritional and medicinal purposes, but propagation through tubers can lead to the spread of viruses, causing yield losses.
  • A survey in July 2020 collected leaf samples from farms in Henan Province, revealing symptoms such as mosaic patterns and discoloration, with subsequent RNA extraction and sequencing performed to identify viral presence.
  • The analysis found multiple viruses, including the youcai mosaic virus, broad bean wild virus 2, and yam latent virus, confirming the existence of viral diseases affecting yam crops in China.
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Cinobufacini capsule and injection are two different formulations from the same source, obtained from the extraction of the skin of Cantor, which have been approved by the Chinese State Food and Drug Administration (CFDA) for the treatment of various cancers. Our previous study has found that the cinobufacini capsule and injection exhibited different anticancer effects, but their different pharmacokinetic behaviors, which could give a cause of that, have never been reported. So a sensitive and selective method for the simultaneous quantitation of 13 compounds in the rat plasma, including bufothionine, hellebrigenin, bufalin, gamabufotalin, telocinobufagin, cinobufagin, arenobufagin, cinobufotalin, desacetylcinobufotalin, bufotalin, pseudobufarenogin, resibufogenin, and desacetylcinobufagin, was established by using the Agilent 6460 mass spectrometer equipped with an ESI ion source in a multiple-reaction monitoring (MRM) mode.

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Safe and effective vaccines and therapeutics based on the understanding of antiviral immunity are urgently needed to end the COVID-19 pandemic. However, the understanding of these immune responses, especially cellular immune responses to SARS-CoV-2 infection, is limited. Here, we conducted a cohort study of COVID-19 patients who were followed and had blood collected to characterize the longitudinal dynamics of their cellular immune responses.

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  • * A recent survey in Henan Province, China, revealed that over 70% of R. glutinosa plants displayed symptoms of viral diseases, prompting researchers to collect leaf samples for further analysis.
  • * High-throughput sequencing of the collected samples identified several known viruses infecting the plants, including broad bean wilt virus, indicating widespread viral problems in the cultivation of this important plant.
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Objective: To analyze the pathogenic variant of preaxial polydactyly in a Chinese Han pedigree and identify the cause of polydactyly.

Methods: The peripheral blood DNA of the proband and her parents was extracted. The polydactyly-related genes were detected by trio whole exome sequencing, and the suspected pathogenic gene was screened out.

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Carbonaceous aerosols are major components in PM of both polluted and clean atmosphere. Accurate source apportionment of carbonaceous aerosols may support effective PM control. Dual-carbon isotope method (C and C) was adopted to identify the contribution of three main air pollution sources biogenic and biomass (f), liquid fossil (f) and coal (f).

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We obtain multivalley dark soliton solutions with asymmetric or symmetric profiles in multicomponent repulsive Bose-Einstein condensates by developing the Darboux transformation method. We demonstrate that the width-dependent parameters of solitons significantly affect the velocity ranges and phase jump regions of multivalley dark solitons, in sharp contrast to scalar dark solitons. For double-valley dark solitons, we find that the phase jump is in the range [0,2π], which is quite different from that of the usual single-valley dark soliton.

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  • Typhonium giganteum, commonly known as Baifuzi, is a perennial plant used in traditional Chinese medicine for treating strokes and cancer.
  • A survey in Yuzhou city, Henan Province, revealed that over 60% of T. giganteum plants showed virus-like symptoms, prompting investigatory analysis of potential viral pathogens.
  • High-throughput sequencing identified a significant viral infection in the plants, specifically a dasheen mosaic virus (DsMV), which displayed an 84% sequence identity with the reference strain, confirming its prevalence in the sampled plants.
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Purpose: To avoid undefined metabolic mechanisms and to eliminate potential side effects of traditional nanocarriers, new green carriers are urgently needed in cancer treatment. Carrier-free nanoparticles (NPs) based on ursolic acid (UA) have attracted significant attention, but the UA NPs targeting the folate receptor have never been explored. We designed a novel self-assembled UA-Methotrexate (MTX) NPs targeting the folate-receptor and its synergetic anticancer activity was studied in vitro and in vivo.

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Non-alcoholic fatty liver disease (NAFLD) is one of the most common chronic liver diseases and can lead to liver cirrhosis or liver cancer in severe cases. In recent years, the incidence of NAFLD has increased substantially. The trend has continued to increase and has become a key point of concern for health systems.

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The rapid expansion of clinical isolates exhibiting resistance to most or all available antibiotics is a global concern. Current treatments for infections caused by this bacterium have become less effective, and the need to explore new alternative therapies is urgent. Depolymerases derived from phages are emerging as attractive anti-virulence agents.

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is an important nosocomial pathogen in hospital-acquired infections, and carbapenem resistance has been increasingly observed worldwide. Oxacillinase production by is a predominant and prevalent carbapenem resistance mechanism of , especially in China. Rapid and specific detection of may offer valuable insight for administration of directed antimicrobial therapy.

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