Publications by authors named "Luqiong Lv"
Host Metabolic Alterations Mediate Phyllosphere Microbes Defense upon pv Infection.
J Agric Food Chem
January 2025
Rice bacterial leaf blight, caused by pv (), is a significant threat to global food security. Although the microbiome plays an important role in protecting plant health, how the phyllosphere microbiome is recruited and the underlying disease resistance mechanism remain unclear. This study investigates how rice phyllosphere microbiomes respond to pathogen invasion through a comprehensive multiomics approach, exploring the mechanisms of microbial defense and host resistance.
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- - The study focuses on the use of biogenic nanoformulations (BNFs) made from biogenic silica nanoparticles (SiNPs) and melatonin (MT) to control bacterial wilt in tomatoes, a disease caused by the bacterium Ralstonia solanacearum.
- - Researchers synthesized SiNPs using Zizania latifolia leaves and assessed BNFs in greenhouse settings, observing significant improvements in plant immunity and a 78.29% reduction in bacterial wilt incidence through enhanced antioxidant enzyme activity and disease-related gene activation.
- - The results indicated that BNFs not only improve tomato plant resistance but also promote the growth of beneficial bacteria in the rhizosphere, signifying a holistic approach to managing plant diseases
pv. (Xoo) is a significant bacterial pathogen responsible for outbreaks of bacterial leaf blight in rice, posing a major threat to rice cultivation worldwide. Effective management of this pathogen is crucial for ensuring rice yield and food security.
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- Silicon has been shown to improve rice growth and photosynthetic capabilities while also reducing oxidative stress and arsenic uptake in plants.
- The study reveals that silicon not only helps in enhancing plant resilience against arsenic toxicity through biochemical and microbiome changes but also provides insights for sustainable agriculture in arsenic-affected areas.
Bacterial leaf blight (BLB) pathogen, Xanthomonas oryzae pv. oryzae (Xoo) is the most devastating bacterial pathogen, which jeopardizes the sustainable rice (Oryza sativa L.) production system.
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- Cobalt oxide nanoparticles (CoONPs) are gaining attention for their diverse properties, but studies on their effectiveness in crop protection and impact on photosynthesis are limited.
- CoONPs were green synthesized from Hibiscus rosa-sinensis extract, characterized, and found to significantly inhibit the growth and biofilm formation of the bacterial pathogen Xanthomonas oryzae, reducing disease in rice plants by a large margin.
- Application of CoONPs improved plant growth metrics and enhanced photosynthetic efficiency in Arabidopsis, suggesting their potential as a new tool for managing plant diseases.
Article Synopsis
- * There is a growing concern about the environmental impact of traditional treatment methods, and while biocontrol methods using beneficial bacteria and fungi show promise in lab conditions, their effectiveness in real-world settings is still uncertain.
- * The review emphasizes the potential of using bacteriophages (viruses that specifically target bacteria) as a biocontrol strategy against Psa, discussing the latest research on isolating and characterizing these phages
Metabolic and Proteomic Profiles Reveal the Response of the ASD-Associated Resistant Strain 6-1 of to Propionic Acid.
Int J Environ Res Public Health
December 2022
Autism spectrum disorder (ASD) seriously affects children's health. In our previous study, we isolated and identified a bacterium ( strain 6-1) that is resistant to propionic acid (PA), which has been reported to play a significant role in the formation of ASD. In order to elucidate the mechanism of the resistance to PA, this study investigated the change in the metabolic and proteomic profile of strain 6-1 in the presence and absence of PA.
View Article and Find Full Text PDFBacteria from the genus have been reported to be widely distributed in rice paddy environments with contradictory roles. Some strains promoted rice growth and protected rice from pathogen infection or abiotic stress, but other strain exhibited virulence to rice, even causing severe rice disease. In order to effectively utilize in rice production, this paper analyzed the mechanisms underlying beneficial and harmful effects of on rice growth.
View Article and Find Full Text PDFThe K homology (KH) repeat is an RNA-binding motif that exists in various proteins, some of which participate in plant growth. However, the function of KH domain-containing proteins in plant defence is still unclear. In this study, we found that a KH domain-containing protein in apple (Malus domestica), HEN4-like (MdKRBP4), is involved in the plant immune response.
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- This study investigates the use of metal nanoparticles (CuO, ZnO, FeO) as potential solutions for combating tomato bacterial wilt (TBW), a serious plant disease caused by a soil-borne pathogen.
- The application of these nanoparticles was found to reduce the incidence of TBW and positively alter the structure of the rhizosphere bacterial community by increasing beneficial bacteria and decreasing pathogens.
- The results highlight that CuO nanoparticles, in particular, showed the most significant effects, enhancing tomato plant health and suggesting new strategies for disease management in agriculture.
To successfully colonize the plants, the pathogenic microbes secrete a mass of effector proteins which manipulate host immunity. Apple valsa canker is a destructive disease caused by the weakly parasitic fungus . A previous study indicated that the effector protein 1 () is an essential virulence factor.
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- The study examined the gut microbiome of children with autism spectrum disorder (ASD) compared to healthy children and found significant differences in live cell counts and bacterial diversity.
- ZnONPs (zinc oxide nanoparticles) were shown to reduce live bacterial cells in the guts of healthy children but had less effect on ASD children, while increasing gut bacterial diversity in both groups, more so in ASD kids.
- The research identified distinct nanoparticle-resistant bacteria strains in healthy versus ASD children, indicating different gut microbiome responses to environmental factors.
Attention-deficit hyperactivity disorder (ADHD) seriously affects children's health, and the gut microbiome has been widely hypothesized to play a role in the regulation of ADHD behavior. The present study aims to the biosynthesize of zinc oxide nanoparticles (ZnONPs) by using strain RTN1, followed by their characterization through state-of-the-art material characterization techniques, viz., UV-vis spectroscopy, Fourier transform infrared spectroscopy, and transmission and scanning electron microscopic analyses with energy dispersive spectrometry.
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