NADPH oxidases, essential players of hormone signalings in plant development and response to stresses

ABSTRACT

Plasma membrane NADPH oxidases (NOXs), also named respiratory burst oxidase homologues (Rbohs), are critical generators of reactive oxygen species (ROS), which as signal molecules regulate growth and development, and adaptation to various biotic and abiotic stresses in plants. NOXs-dependent ROS production is frequently induced by diverse phytohormones. The ROS commonly function downstream of, and interplay with hormone signalings, coordinately modulating plant development and stress tolerance. In this review, we summarize recent advances on the roles and molecular mechanisms of Rbohs in mediating signalings of multiple hormones including auxin, gibberellins, abscisic acid, ethylene and brassinosteroids in plants.

KEYWORDS:

• NADPH oxidase
• respiratory burst oxidase homologue
• reactive oxygen species
• hormone
• growth
• stress

Disclosure of potential conflicts of interest

The authors declare that they have no conflicts of interest in the research.

Additional information

Funding

This work was supported by the National Natural Science Foundation of China [31870248].