A5069579045- Plant-Microbe Interactions and Immunity
- Plant Pathogenic Bacteria Studies
- Plant Parasitism and Resistance
- Legume Nitrogen Fixing Symbiosis
- Insect-Plant Interactions and Control
- Plant Virus Research Studies
- Plant pathogens and resistance mechanisms
- Plant Stress Responses and Tolerance
- Plant Pathogens and Fungal Diseases
- Optical Wireless Communication Technologies
- Plant Molecular Biology Research
- Insect and Pesticide Research
- Plant Physiology and Cultivation Studies
- Polysaccharides and Plant Cell Walls
- Orbital Angular Momentum in Optics
- Insect symbiosis and bacterial influences
- Photosynthetic Processes and Mechanisms
- Genomics and Phylogenetic Studies
- Toxin Mechanisms and Immunotoxins
- Nematode management and characterization studies
- Underwater Vehicles and Communication Systems
- Plant and animal studies
- Plant Disease Resistance and Genetics
- Bacterial Genetics and Biotechnology
- Plasmonic and Surface Plasmon Research
Michigan State University
2016-2025
Howard Hughes Medical Institute
2016-2025
Duke University
2020-2025
Kunming University of Science and Technology
2023-2024
Southwest University
2020-2024
Harbin Institute of Technology
2013-2022
Naval University of Engineering
2022
China Agricultural University
2021
Michigan United
2011-2021
Gordon and Betty Moore Foundation
2012-2018
For many years, research on a suite of plant defense responses that begin when plants are exposed to general microbial elicitors was underappreciated, for good reason: There has been no critical experimental demonstration their importance in mediating resistance during pathogen infection. Today, these named pathogen- or microbe-associated molecular patterns (PAMPs MAMPs) and the known as PAMP-triggered immunity (PTI). Recent studies provide an elegant explanation difficulty demonstrating...
Plants must effectively defend against biotic and abiotic stresses to survive in nature. However, this defense is costly often accompanied by significant growth inhibition. How plants coordinate the fluctuating growth-defense dynamics not well understood remains a fundamental question. Jasmonate (JA) gibberellic acid (GA) are important plant hormones that mediate growth, respectively. Binding of bioactive JA or GA ligands cognate receptors leads proteasome-dependent degradation specific...
A proteinaceous elicitor of the plant defense reaction known as hypersensitive response was isolated from Erwinia amylovora , bacterium that causes fire blight pear, apple, and other rosaceous plants. The elicitor, named harpin, is an acidic, heat-stable, cell-envelope-associated protein with apparent molecular weight 44 kilodaltons. Harpin caused tobacco leaf lamina to collapse increase in pH bathing solutions suspension-cultured cells. gene encoding harpin ( hrpN ) located 40-kilobase hrp...
Jasmonate (JA) is a lipid-derived hormone that regulates diverse aspects of plant immunity and development. An amino acid-conjugated form JA, jasmonoyl–isoleucine (JA–Ile), stimulates binding the F-box protein coronatine-insensitive 1 (COI1) to, subsequent ubiquitin-dependent degradation of, jasmonate ZIM domain (JAZ) proteins repress transcription JA-responsive genes. The virulence factor coronatine (COR), which produced by pathogenic strains Pseudomonas syringae , suppresses host defense...
Pseudomonas syringae is a Gram-negative, rod-shaped bacterium with polar flagella (Figure 1; Agrios, 1997).Strains of P. collectively infect wide variety plants.Different strains syringae, however, are known for their diverse and host-specific interactions plants (Hirano Upper, 2000).A specific strain may be assigned to one at least 40 pathovars based on its host range among different plant species (Gardan et al., 1999) then further race differential cultivars the plant.Understanding...
Bacterial effector proteins secreted through the type III secretion system (TTSS) play a crucial role in causing plant and human diseases. Although ability of effectors to trigger defense responses resistant plants is well understood, disease-promoting functions susceptible are largely enigmatic. Previous microscopic studies suggest that TTSS plant-pathogenic bacteria transports suppressors cell wall-based activated by TTSS-defective hrp mutant bacteria. However, identity such has remained...
Abstract In plants and animals, induced resistance (IR) to biotic abiotic stress is associated with priming of cells for faster stronger activation defense responses. It has been hypothesized that cell involves accumulation latent signaling components are not used until challenge exposure stress. However, the identity such remained elusive. Here, we show during development chemically in Arabidopsis thaliana, mRNA inactive proteins mitogen-activated protein kinases (MPKs), MPK3 MPK6. Upon or...
Plants have evolved a powerful immune system to defend against infection by most microbial organisms. However, successful pathogens, such as Pseudomonas syringae, developed countermeasures and inject virulence proteins into the host plant cell suppress immunity cause devastating diseases. Despite intensive research efforts, molecular targets of bacterial that are important for disease development remained obscure. Here, we show conserved P. syringae protein, HopM1, an immunity-associated...
Plants and animals sense pathogen-associated molecular patterns (PAMPs) in turn differentially regulate a subset of microRNAs (miRNAs). However, the extent to which miRNA pathway contributes innate immunity remains unknown. Here, we show that miRNA-deficient mutants Arabidopsis partly restore growth type III secretion-defective mutant Pseudomonas syringae. These also sustained nonpathogenic fluorescens Escherichia coli strains, implicating miRNAs as key components plant basal defense....
Summary Pseudomonas syringae pv. tomato DC3000 ( Pst ) is a virulent pathogen that causes disease on and Arabidopsis. The type III secretion system (TTSS) plays key role in pathogenesis by translocating virulence effectors from the bacteria into plant host cell, while phytotoxin coronatine (COR) contributes to symptom development. Recent studies suggest both TTSS COR are involved suppression of basal defenses. However, little known about interplay between gene expression changes associated...
Summary Coronatine is an important virulence factor produced by several pathovars of the bacterial pathogen Pseudomonas syringae . The structure coronatine similar to that a class plant hormones called jasmonates (JAs). An step in JA signaling SCF COI1 E3 ubiquitin ligase‐dependent degradation JAZ repressor proteins. We have recently shown jasmonoyl isoleucine (JA‐Ile) promotes physical interaction between Arabidopsis JAZ1 and (the F‐box component ) proteins, JA‐Ile‐dependent COI1–JAZ1 could...
Salicylic acid (SA)-mediated host immunity plays a central role in combating microbial pathogens plants. Inactivation of SA-mediated immunity, therefore, would be critical step the evolution successful plant pathogen. It is known that mutations conserved effector loci (CEL) Pseudomonas syringae (the ΔCEL mutation), Erwinia amylovora dspA / E and Pantoea stewartii subsp. wtsE mutation) exert particularly strong negative effects on bacterial virulence their plants by unknown mechanisms. We...