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247 results on '"Noutoshi, Yoshiteru"'

7. Rhizoviticin is an alphaproteobacterial tailocin that mediates biocontrol of grapevine crown gall disease

Author

Ishii, Tomoya, primary, Tsuchida, Natsuki, additional, Hemelda, Niarsi Merry, additional, Saito, Kirara, additional, Bao, Jiyuan, additional, Watanabe, Megumi, additional, Toyoda, Atsushi, additional, Matsubara, Takehiro, additional, Sato, Mayuko, additional, Toyooka, Kiminori, additional, Ishihama, Nobuaki, additional, Shirasu, Ken, additional, Matsui, Hidenori, additional, Toyoda, Kazuhiro, additional, Ichinose, Yuki, additional, Hayashi, Tetsuya, additional, Kawaguchi, Akira, additional, and Noutoshi, Yoshiteru, additional

Published
2024
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10. Mitochondrial‐targeting effector RsIA_CtaG/Cox11 in Rhizoctonia solaniAG‐1 IA has two functions: plant immunity suppression and cell death induction mediated by a rice cytochrome c oxidase subunit

Author

Zhang, Danhua, primary, Lin, Runmao, additional, Yamamoto, Naoki, additional, Wang, Zhaoyilin, additional, Lin, Hui, additional, Okada, Kazunori, additional, Liu, Yao, additional, Xiang, Xing, additional, Zheng, Tengda, additional, Zheng, Haoxi, additional, Yi, Xiaoqun, additional, Noutoshi, Yoshiteru, additional, and Zheng, Aiping, additional

Published
2023
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12. Endogenous suppressor(s) in Arabidopsis thaliana

Author

Mai, Thanh Luan, Kawasaki, Tatsuhiro, Fitrianti, Aprilia Nur, Phuong, Le Thi, Shiokawa, Tsugumi, Tada, Hiroko, Matsui, Hidenori, Noutoshi, Yoshiteru, Yamamoto, Mikihiro, Ichinose, Yuki, Shiraishi, Tomonori, and Toyoda, Kazuhiro

Published
2020
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17. Mitochondrial‐targeting effector RsIA_CtaG/Cox11 in Rhizoctonia solani AG‐1 IA has two functions: plant immunity suppression and cell death induction mediated by a rice cytochrome c oxidase subunit.

Author

Zhang, Danhua, Lin, Runmao, Yamamoto, Naoki, Wang, Zhaoyilin, Lin, Hui, Okada, Kazunori, Liu, Yao, Xiang, Xing, Zheng, Tengda, Zheng, Haoxi, Yi, Xiaoqun, Noutoshi, Yoshiteru, and Zheng, Aiping

Subjects
CYTOCHROME oxidase, CELL death, RHIZOCTONIA solani, DISEASE resistance of plants, RNA interference, RICE diseases & pests
Abstract

Rhizoctonia solani AG‐1 IA causes a necrotrophic rice disease and is a serious threat to rice production. To date, only a few effectors have been characterized in AG‐1 IA. We previously identified RsIA_CtaG/Cox11 and showed that infiltration of the recombinant protein into rice leaves caused disease‐like symptoms. In the present study, we further characterized the functionality of RsIA_CtaG/Cox11. RsIA_CtaG/Cox11 is an alternative transcript of cytochrome c oxidase copper chaperone Cox11 that starts from the second AUG codon, but contains a functional secretion signal peptide. RNA interference with RsIA_CtaG/Cox11 reduced the pathogenicity of AG‐1 IA towards rice and Nicotiana benthamiana without affecting its fitness or mycelial morphology. Transient expression of the RsIA_CtaG/Cox11‐GFP fusion protein demonstrated the localization of RsIA_CtaG/Cox11 to mitochondria. Agro‐infiltration of RsIA_CtaG/Cox11 into N. benthamiana leaves inhibited cell death by BAX and INF1. In contrast to rice, agro‐infiltration of RsIA_CtaG/Cox11 did not induce cell death in N. benthamiana. However, cell death was observed when it was coinfiltrated with Os_CoxVIIa, which encodes a subunit of cytochrome c oxidase. Os_CoxVIIa appeared to interact with RsIA_CtaG/Cox11. The cell death triggered by coexpression of RsIA_CtaG/Cox11 and Os_CoxVIIa is independent of the leucine‐rich repeat receptor kinases BAK1/SOBIR1 and enhanced the susceptibility of N. benthamiana to AG‐1 IA. Two of the three evolutionarily conserved cysteine residues at positions 25 and 126 of RsIA_CtaG/Cox11 were essential for its immunosuppressive activity, but not for cell death induction. This report suggests that RsIA_CtaG/Cox11 appears to have a dual role in immunosuppression and cell death induction during pathogenesis. [ABSTRACT FROM AUTHOR]

Published
2024
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26. Time-series transcriptome of Brachypodium distachyon during bacterial flagellin-induced pattern-triggered immunity

Author

Ogasahara, Tsubasa, primary, Kouzai, Yusuke, additional, Watanabe, Megumi, additional, Takahashi, Akihiro, additional, Takahagi, Kotaro, additional, Kim, June-Sik, additional, Matsui, Hidenori, additional, Yamamoto, Mikihiro, additional, Toyoda, Kazuhiro, additional, Ichinose, Yuki, additional, Mochida, Keiichi, additional, and Noutoshi, Yoshiteru, additional

Published
2022
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27. Secreted Glycosyltransferase RsIA_GT of Rhizoctonia solani AG-1 IA Inhibits Defense Responses in Nicotiana benthamiana

Author

Zhang, Danhua, primary, Wang, Zhaoyilin, additional, Yamamoto, Naoki, additional, Wang, Mingyue, additional, Yi, Xiaoqun, additional, Li, Ping, additional, Lin, Runmao, additional, Nasimi, Zohreh, additional, Okada, Kazunori, additional, Mochida, Keiichi, additional, Noutoshi, Yoshiteru, additional, and Zheng, Aiping, additional

Published
2022
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30. Identification of Aerotaxis Receptor Proteins Involved in Host Plant Infection by Pseudomonas syringae pv. tabaci 6605

Author

Tumewu, Stephany Angelia, Watanabe, Yuta, Matsui, Hidenori, Yamamoto, Mikihiro, Noutoshi, Yoshiteru, Toyoda, Kazuhiro, and Ichinose, Yuki

Subjects
virulence, aerotaxis, Bacterial Proteins, MCP, Chemotaxis, Tobacco, Escherichia coli, Methyl-Accepting Chemotaxis Proteins, Pseudomonas syringae, aeroreceptor, Plant Diseases
Abstract

Pseudomonas syringae pv. tabaci 6605 (Pta6605) is a foliar plant pathogen that causes wildfire disease on tobacco plants. It requires chemotaxis to enter plants and establish infection. While chemotactic signals appear to be the main mechanism by which Pta6605 performs directional movement, the involvement of aerotaxis or energy taxis by this foliar pathogen is currently unknown. Based on domain structures and similarity with more than 50 previously identified putative methyl-accepting chemotaxis proteins (MCPs), the genome of Pta6605 encodes three potential aerotaxis transducers. We identified AerA as the main aerotaxis transducer and found that it possesses a taxis-to-serine-and-repellent (Tsr)-like domain structure that supports a periplasmic 4HB-type ligand-binding domain (LBD). The secondary aerotaxis transducer, AerB, possesses a cytosolic PAS-type LBD, similar to the Aer of Escherichia coli and Pseudomonas aeruginosa. Aerotaxis ability by single and double mutant strains of aerA and aerB was weaker than that by wild-type Pta6605. On the other hand, another cytosolic PAS-type LBD containing MCP did not make a major contribution to Pta6605 aerotaxis in our assay system. Furthermore, mutations in aerotaxis transducer genes did not affect surface motility or chemotactic attraction to yeast extract. Single and double mutant strains of aerA and aerB showed less colonization in the early stage of host plant infection and lower biofilm production than wild-type Pta6605. These results demonstrate the presence of aerotaxis transducers and their contribution to host plant infection by Pta6605.

Published
2022

42. Requirement of γ-Aminobutyric Acid Chemotaxis for Virulence of Pseudomonas syringae pv. tabaci 6605

Author

Tumewu, Stephany Angelia, Matsui, Hidenori, Yamamoto, Mikihiro, Noutoshi, Yoshiteru, Toyoda, Kazuhiro, and Ichinose, Yuki

Subjects
Virulence, bacterial virulence, Chemotaxis, fungi, food and beverages, Pseudomonas syringae, GABA, nervous system, Bacterial Proteins, Receptors, GABA, Pseudomonas, Tobacco, Regular Paper, gamma-Aminobutyric Acid, plant-microbe interaction, Plant Diseases, Sequence Deletion
Abstract

γ-Aminobutyric acid (GABA) is a widely distributed non-proteinogenic amino acid that accumulates in plants under biotic and abiotic stress conditions. Recent studies suggested that GABA also functions as an intracellular signaling molecule in plants and in signals mediating interactions between plants and phytopathogenic bacteria. However, the molecular mechanisms underlying GABA responses to bacterial pathogens remain unknown. In the present study, a GABA receptor, named McpG, was conserved in the highly motile plant-pathogenic bacteria Pseudomonas syringae pv. tabaci 6605 (Pta6605). We generated a deletion mutant of McpG to further investigate its involvement in GABA chemotaxis using quantitative capillary and qualitative plate assays. The wild-type strain of Pta6605 was attracted to GABA, while the ΔmcpG mutant abolished chemotaxis to 10‍ ‍mM GABA. However, ΔmcpG retained chemotaxis to proteinogenic amino acids and succinic semialdehyde, a structural analog of GABA. Furthermore, ΔmcpG was unable to effectively induce disease on host tobacco plants in three plant inoculation assays: flood, dip, and infiltration inoculations. These results revealed that the GABA sensing of Pta6605 is important for the interaction of Pta6605 with its host tobacco plant.

Published
2020

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