Strigolactones are a class of phytohormone, first described 10 years ago. During this time, different roles for strigolactones in plant growth and development have been discovered, including shaping of shoot and root architecture, and senescence. In addition to their function in plant development and architecture, strigolactones are also exuded from roots to promote interactions between plants and symbiotic partners, a signal which is high-jacked by parasitic weeds. Finally, it was demonstrated that strigolactones are involved in plant response to different biotic and abiotic stresses. During recent years, the main components of biosynthesis and signalling pathways of strigolactones were identified, mainly based on the analysis of semi-dwarf and highly branched mutants.

However, the perception mechanism of strigolactones was only resolved this year, which clearly indicates that we are still at the beginning of the road to understand the strigolactone action. At this moment, the biggest advances will likely be the identification of transcription factors and target genes that depend on strigolactones.

With this Research Topic, we seek to make a comprehensive collection of knowledge on the new roles of strigolactones in plants, mechanisms and components of strigolactone biosynthesis and signal transduction, as well as methods for investigation of strigolactone function, with special focus on measurement of strigolactone content, as well as strigolactone inhibitors and analogues.

We welcome submission of all types of articles, with a preference for Original Research, Reviews, and Opinions, focusing on the following:

- Studies on the role of strigolactones in response to biotic and abiotic stresses in model and crop plants.
- Investigation of strigolactone-dependent developmental processes.
- Studies on strigolactone-related genes, with special focus on transcriptional factors.
- New or improved methods for the detection and measurement of strigolactone contents in plant tissues.

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Frontiers in Plant Science

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