Journal
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Volume 69, Issue 12, Pages 3566-3584Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.jafc.0c07908
Keywords
abiotic stress; biotic stress; leaf development; peptides; phytohormone; signaling pathway; stress response
Funding
- National Natural Science Research Foundation of China (NSFC) [31600200, 31770288]
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Phytohormones are involved in various processes throughout a plant's lifecycle, with different hormones interconnected and challenging to study in isolation. In leaf development, multiple phytohormones work together to establish signaling pathways, providing a model for breeding stress-resistant crops.
Phytohormones participate in various processes over the course of a plant's lifecycle. In addition to the five classical phytohormones (auxins, cytokinins, gibberellins, abscisic acid, and ethylene), phytohormones such as brassinosteroids, jasmonic acid, salicylic acid, strigolactones, and peptides also play important roles in plant growth and stress responses. Given the highly interconnected nature of phytohormones during plant development and stress responses, it is challenging to study the biological function of a single phytohormone in isolation. In the current Review, we describe the combined functions and signaling cascades (especially the shared points and pathways) of various phytohormones in leaf development, in particular, during leaf primordium initiation and the establishment of leaf polarity and leaf morphology as well as leaf development under various stress conditions. We propose a model incorporating the roles of multiple phytohormones in leaf development and stress responses to illustrate the underlying combinatorial signaling pathways. This model provides a reference for breeding stress-resistant crops.
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