Nitric oxide and cytokinin cross-talk and their role in plant hypoxia response

ABSTRACT

Nitric oxide (NO) and cytokinins (CKs) are known for their crucial contributions to plant development, growth, senescence, and stress response. Despite the importance of both signals in stress responses, their interaction remains largely unexplored. The interplay between NO and CKs emerges as particularly significant not only regarding plant growth and development but also in addressing plant stress response, particularly in the context of extreme weather events leading to yield loss. In this review, we summarize NO and CKs metabolism and signaling. Additionally, we emphasize the crosstalk between NO and CKs, underscoring its potential impact on stress response, with a focus on hypoxia tolerance. Finally, we address the most urgent questions that demand answers and offer recommendations for future research endeavors.

KEYWORDS:

• Nitric oxide
• cytokinin
• hypoxia
• flooding tolerance
• Nitric oxide and cytokinin interaction

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Funding

We are thankful to the Open Access Publishing Fund of Leipzig University supported by the German Research Foundation within the program Open Access Publication Funding