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Article
Flagellar motility of Pseudomonas syringae pv. actinidiae biovar 3 contributes to bacterial infection through stomata
Highly virulent Pseudomonas syringae pv. actinidiae biovar 3 (Psa3) causes kiwifruit bacterial canker, which seriously damages kiwifruits worldwide. We previously screened Psa3-transposon-inserted mutants and obt...
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Article
Plant responses induced by Adoxophyes honmai oviposition in host tea plants and non-host Arabidopsis thaliana
In the tea ecosystem, tea plants are exposed to attack by the smaller tea tortrix, Adoxophyes honmai Yasuda (Lepidoptera: Tortricidae). Ascogaster reticulata Watanabe (Hymenoptera: Braconidae) is a solitary egg-l...
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Article
Vt35 antitoxin plays a central regulatory role in virulence of Pseudomonas savastanoi pv. glycinea on soybean
Pseudomonas savastanoi pv. glycinea (Psg) causes bacterial blight on soybeans. Among Psg mutants that we previously generated by transposon mutagenesis to identify potential virulence factors, mutant VTP20 had re...
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Article
Covering cabbage leaves with cellulose nanofiber confers resistance against Pseudomonas cannabina pv. alisalensis
Cellulose nanofiber (CNF) is produced from cellulose, which is one of the most abundant and renewable biomasses in nature. We previously demonstrated that covering soybean leaves with CNF changed leaf surface ...
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Article
Translocation of acibenzolar, an active metabolic substance of acibenzolar-S-methyl, to distal leaves in cabbage and Japanese radish
Bacterial blight on cruciferous plants, caused by Pseudomonas cannabina pv. alisalensis (Pcal) inflicts serious damage in Japan. We previously demonstrated that acibenzolar-S-methyl (ASM), one of the plant activa...
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Article
Efficacy of RNA-spray-induced silencing of Phakopsora pachyrhizi chitin synthase genes to control soybean rust
Asian soybean rust caused by Phakopsora pachyrhizi is mainly controlled by synthetic fungicides; however, fungicide tolerance has emerged in P. pachyrhizi. In tests of spray-induced gene silencing (SIGS) using ds...
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Article
Acibenzolar-S-methyl efficacy against bacterial brown stripe caused by Acidovorax avenae subsp. avenae in cree** bentgrass
Bacterial brown stripe caused by Acidovorax avenae subsp. avenae (Aaa) causes serious damage on cree** bentgrass on golf course greens. However, there are few effective control strategies. Acibenzolar-S-methyl ...
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Article
Acibenzolar-S-methyl and probenazole activate stomatal-based defense at different times to control bacterial blight of cabbage
In efforts to control bacterial blight caused by Pseudomonas cannabina pv. alisalensis (Pcal) on cabbage using plant defense activators acibenzolar-S-methyl (ASM) and probenazole (PBZ), a soil drench with ASM and...
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Article
Flood inoculation of seedlings on culture medium to study interactions between Pseudomonas syringae pv. actinidiae and kiwifruit
Bacterial canker of kiwifruit caused by Pseudomonas syringae pv. actinidiae (Psa) is a serious threat to kiwifruit production. Highly virulent strains of Psa biovar3 (Psa3) have spread rapidly to kiwifruit produc...
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Article
Acibenzolar-S-methyl activates stomatal-based defense against Pseudomonas cannabina pv. alisalensis in cabbage
Pseudomonas cannabina pv. alisalensis (Pcal), which causes bacterial blight of brassicaceous plants, is an economically important pathogen worldwide. Copper fungicide and antibiotics are major strategies to manag...
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Article
AlgU contributes to the virulence of Pseudomonas syringae pv. tomato DC3000 by regulating production of the phytotoxin coronatine
Pseudomonas syringae pv. tomato DC3000 (Pst DC3000), which causes bacterial speck disease of tomato, has been used as a model pathogen to investigate the molecular basis of plant–pathogen interactions. The functi...
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Article
Studies on mode of action of phytotoxin coronatine produced by Pseudomonas syringae pv. tomato
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Article
Open AccessThe small GTPase, nucleolar GTP-binding protein 1 (NOG1), has a novel role in plant innate immunity
Plant defense responses at stomata and apoplast are the most important early events during plant-bacteria interactions. The key components for the signaling of stomatal defense and nonhost resistance have not ...
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Article
Open AccessTranscriptomic and metabolomic analyses identify a role for chlorophyll catabolism and phytoalexin during Medicago nonhost resistance against Asian soybean rust
Asian soybean rust (ASR) caused by Phakopsora pachyrhizi is a devastating foliar disease affecting soybean production worldwide. Understanding nonhost resistance against ASR may provide an avenue to engineer soyb...
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Article
Open AccessCharacterization of the Rust Fungus, Puccinia emaculata, and Evaluation of Genetic Variability for Rust Resistance in Switchgrass Populations
Several fungal pathogens have been identified on ornamental and native stands of switchgrass (Panicum virgatum L.). Diseases of switchgrass, particularly rust, have been largely neglected and are likely to become...
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Article
Open AccessArabidopsis seedling flood-inoculation technique: a rapid and reliable assay for studying plant-bacterial interactions
The Arabidopsis thaliana-Pseudomonas syringae model pathosystem is one of the most widely used systems to understand the mechanisms of microbial pathogenesis and plant innate immunity. Several inoculation methods...
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Article
Exogenous coronatine, but not coronafacic acid or methyl jasmonate, restores the disease phenotype of a coronatine-defective mutant of Pseudomonas syringae pv. tomato on tomato seedlings
Coronatine (COR) functions as a virulence factor in the interaction of Pseudomonas syringae pv. tomato strain DC3000 with tomato and Arabidopsis. COR consists of two moieties, coronafacic acid (CFA) and coronamic...
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Article
Bacterial DNA activates immunity in Arabidopsis thaliana
To initiate defense responses against invasion of pathogenic organisms, animals and plants must recognize microbe-associated molecular patterns (MAMPs). In this study, the elicitor activity of bacterial DNA on...
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Article
Modulation of defense signal transduction by flagellin-induced WRKY41 transcription factor in Arabidopsis thaliana
Flagellin, a component of the flagellar filament of Pseudomonas syringae pv. tabaci 6605 (Pta), induces hypersensitive reaction in its non-host Arabidopsis thaliana. We identified the WRKY41 gene, which belongs t...
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Article
N-terminal domain including conserved flg22 is required for flagellin-induced hypersensitive cell death in Arabidopsis thaliana
Flagellin in Pseudomonas syringae is a potent elicitor of defense responses including hypersensitive cell death in dicot plants. The oligopeptides flg22 consisting of 22 conserved amino acids near the N-terminus ...
