Chloroplast clustering around the nucleus is a general response to pathogen perception in Nicotiana benthamiana.

ABSTRACT: It is increasingly clear that chloroplasts play a central role in plant stress responses. Upon activation of immune responses, chloroplasts are the source of multiple defensive signals, including reactive oxygen species (ROS). Intriguingly, it has been described that chloroplasts establish physical contact with the nucleus, through clustering around it and extending stromules, following activation of effector-triggered immunity (ETI). However, how prevalent this phenomenon is in plant-pathogen interactions, how its induction occurs, and what the underlying biological significance is are important questions that remain unanswered. Here, we describe that the chloroplast perinuclear clustering seems to be a general plant response upon perception of an invasion threat. Indeed, activation of pa

SUBMITTER: Ding X 

PROVIDER: S-EPMC6715600 | biostudies-literature | 2019 Sep

REPOSITORIES: biostudies-literature