期刊
PLANT SIGNALING & BEHAVIOR
卷 16, 期 4, 页码 -出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/15592324.2021.1885187
关键词
Polyamines; plant defense; reactive oxygen species; salicylic acid; systemic acquired resistance; defense priming
资金
- Programa Estatal de Fomento de la Investigacion Cientifica y Tecnica de Excelencia (Ministerio de Economia y Competitividad, Spain) [BFU2017-87742-R]
- Agencia Estatal de Investigacion (AEI, Spain)
- Fondo Europeo de Desarrollo Regional (FEDER)
Polyamines accumulate in response to stress, playing a protective role in defense. Put treatment triggers local and systemic transcriptional reprogramming, leading to local salicylic acid accumulation and systemic defense against virulent bacteria. Put signaling is mainly ROS dependent and partially compromised by mutations in EDS1, SID2, and NPR1.
Polyamines are known to accumulate in response to stress. Compelling evidence indicate a protective role for polyamines during defense. However, signaling pathways underlying polyamine functions have not been fully elucidated. We recently found that the polyamine putrescine (Put) accumulates during effector triggered immunity (ETI). Treatment with Put triggered local and systemic transcriptional reprogramming partly overlapping with systemic acquired resistance (SAR) responses. In addition, Put treatment led to local salicylic acid (SA) accumulation and systemic defenses against virulent bacteria. Consistent with this, we found that Put signaling is mainly ROS dependent and partly compromised by ENHANCED DISEASE SUSCEPTIBILITY1 (EDS1), SALICYLIC ACID INDUCTION DEFICIENT 2 (SID2) and NONEXPRESSOR of PR GENES1 (NPR1) loss-of-function mutations. Here, we propose a preliminary model by which putrescine contributes to local and systemic defenses in Arabidopsis thaliana.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据