Role of nitric oxide and reactive oxide species in disease resistance to necrotrophic pathogens

Shuta Asai, Keisuke Mase, Hirofumi Yoshioka

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

Nitric oxide (NO) and reactive oxygen species (ROS) are important signaling molecules in plant immunity. However, roles of NO and ROS in disease resistance to necrotrophic pathogens are not fully understood. We have recently demonstrated that NO plays a pivotal role in basal defense against Botrytis cinerea and the expression of the salicylic acid (SA)-responsive gene PR-1 in Nicotiana benthamiana. By contrast, ROS function negatively in resistance or positively in expansion of disease lesions during B. cinerea-N. benthamiana interaction. Here, analysis in NahGtransgenic N. benthamiana showed that SA signaling is not involved in resistance to B. cinerea in N. benthamiana. We discuss how NO and ROS participate in disease resistance to necrotrophic pathogens on the basis of recent reports.

Original languageEnglish (US)
Pages (from-to)872-874
Number of pages3
JournalPlant Signaling and Behavior
Volume5
Issue number7
DOIs
StatePublished - Jul 1 2010

Keywords

  • MAPK
  • NO burst
  • Necrotrophic pathogen
  • Oxidative burst
  • Plant immunity
  • Salicylic acid

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