The Arabidopsis NSL2 negatively controls systemic acquired resistance via hypersensitive response

スポンサーリンク

概要

• 論文の詳細を見る

• The Arabidopsis nsl2 (necrotic spotted lesion 2) mutant, which has been originally reported as the cad1 (constitutively activated cell death 1), shows a phenotype that mimics a hypersensitive response (HR)-like cell death. The NSL2 protein is suggested to negatively control the salicylic acid (SA)-mediated pathway of HR-like cell death in plant immunity. The induction of systemic acquired resistance (SAR) results in the induction of pathogenesis-related (PR) genes in systemic organs triggered by the local HR. In this report, we establish a NSL2 knockdown system in transgenic Arabidopsis based on constitutive or dexamethasone (DEX)-induced RNAi. The former showed a nsl2-like phenotype. In DEX-induced RNAi, localized knockdown resulted in the induction of PR1 gene expression and the restriction of bacterial growth in both DEX-treated and systemic leaves. These results indicate that NSL2 negatively controls SAR via HR.

著者

• YAMAGUCHI Junji

  Faculty of Advanced Life Science and Graduate School of Life Science, Hokkaido University

• Asada Yutaka

  Faculty of Science and Graduate School of Life Science, Hokkaido University

• Yamamoto Masako

  Faculty of Science and Graduate School of Life Science, Hokkaido University

• Tsutsui Tomokazu

  Faculty of Science and Graduate School of Life Science, Hokkaido University

関連論文

• Control of endoreduplication of trichome by RPT2a, a subunit of the 19S proteasome in Arabidopsis
• Control of endoreduplication of trichome by RPT2a, a subunit of the 19S proteasome in Arabidopsis
• The Arabidopsis NSL2 negatively controls systemic acquired resistance via hypersensitive response
• Promoter analysis of OsAMT1;2 and OsAMT1;3 implies their distinct roles in nitrogen utilization in rice
• The Arabidopsis Gene CAD1 Controls Programmed Cell Death in the Plant Immune System and Encodes a Protein Containing a MACPF Domain
• DEAR1, a transcriptional repressor of DREB protein that mediates plant defense and freezing stress responses in Arabidopsis
• Arabidopsis thaliana 26S Proteasome Subunits RPT2a and RPT5a Are Crucial for Zinc Deficiency-Tolerance
• Arabidopsis MBF1s Control Leaf Cell Cycle and its Expansion
• The Arabidopsis NSL2 negatively controls systemic acquired resistance via hypersensitive response
• Sucrose transporter NtSUT4 from tobacco BY-2 involved in plant cell shape during miniprotoplast culture

スポンサーリンク