Abstract
SummaryStrigolactones (SLs) represent a class of plant hormones that regulate developmental processes and play a role in the response of plants to various biotic and abiotic stresses. Both in planta hormonal roles and ex planta signalling effects of SLs are potentially interesting agricultural targets. In this review, we explore various aspects of SL function and highlight distinct areas of agriculture that may benefit from the use of synthetic SL analogues, and we identify possible bottlenecks. Our objective is to identify where the contributions of science and stakeholders are still needed to achieve harnessing the benefits of SLs for a sustainable agriculture of the near future.
Highlights
Strigol, the first strigolactone (SL), was isolated in 1966 from cotton root exudate (Cook et al, 1966), yet it took more than 40 years to realize that SLs represent a new class of phytohormones (Gomez-Roldan et al, 2008; Umehara et al, 2008)
This review introduces the prospects of such a future by highlighting the science of SLs and their potential application in agriculture
SLs are derived from b-carotene (Alder et al, 2012). Partial elucidation of their biosynthesis in several plant species has identified the involvement of the following genes: DWARF27 (b-carotene isomerase), CAROTENOID CLEAVAGE DIOXYGENASE 7 and 8 (CCD7 and CCD8), and MAX1 homologues (Lopez-Obando et al, 2015; Fig. 1)
Summary
Strigolactones (SLs) represent a class of plant hormones that regulate developmental processes and play a role in the response of plants to various biotic and abiotic stresses. Both in planta hormonal roles and ex planta signalling effects of SLs are potentially interesting agricultural targets. We explore various aspects of SL function and highlight distinct areas of agriculture that may benefit from the use of synthetic SL analogues, and we identify possible bottlenecks. Our objective is to identify where the contributions of science and stakeholders are still needed to achieve harnessing the benefits of SLs for a sustainable agriculture of the near future
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