The strigolactone story.

  title={The strigolactone story.},
  author={Xiaonan Xie and Kaori Yoneyama and Koichi Yoneyama},
  journal={Annual review of phytopathology},
Strigolactones (SLs) were originally isolated from plant root exudates as germination stimulants for root parasitic plants of the family Orobanchaceae, including witchweeds (Striga spp.), broomrapes (Orobanche and Phelipanche spp.), and Alectra spp., and so were regarded as detrimental to the producing plants. Their role as indispensable chemical signals for root colonization by symbiotic arbuscular mycorrhizal fungi was subsequently unveiled, and SLs then became recognized as beneficial plant… 

Figures from this paper

Structural diversity of strigolactones and their distribution in the plant kingdom.

  • Xiaonan Xie
  • Environmental Science
    Journal of pesticide science
  • 2016
Structural diversity of naturally occurring SLs and their distribution in the plant kingdom are discussed.


Strigolactone Signaling and Evolution.

This review focuses on the molecular mechanisms, core developmental roles, and evolutionary history of strigolactone signaling and proposes potential translational applications of strIGolactones research to agriculture.

How Do Strigolactones Ameliorate Nutrient Deficiencies in Plants?

  • K. Yoneyama
  • Environmental Science
    Cold Spring Harbor perspectives in biology
  • 2019
Strigolactones, a group of plant secondary metabolites, play an important role as a host recognition signal for symbiotic arbuscular mycorrhizal fungi in the rhizosphere to attract symbionts and to optimize shoot and root architecture.

Characterization of strigolactones exuded by Asteraceae plants

Strigolactones (SLs), originally characterized as germination stimulants for root parasitic weeds, are now recognized as hyphal branching factors for symbiotic arbuscular mycorrhizal fungi and as a

Recent advances in strigolactone research: chemical and biological aspects.

An overview of recent topics onrigolactones is provided, and new discoveries regarding its biosynthetic pathway and multiple hormonal roles in plant development and adaptive responses are highlighted.


Strigolactones (SLs) was the general name for strigol-like compounds, belonging to sesquiterpene lactone. SLs derived from carotenoid biosynthetic pathway. Recently, SLs had been identified having

Tomato strigolactones

The presence of several additional strigolactones in tomato root exudates and extracts are reported, orobanchyl acetate, two 7-hydroxyorobanchol isomers, 7-oxoorobancho and two additional didehydroorobanche isomers and their possible biological relevance are discussed.

Small Molecule Toolbox for Strigolactone Biology.

The theoretical and practical aspects of the design of small molecule probes that have been used to elucidate the functions of SLs are described and the lessons from the development of small molecules to tackle the unique questions in SL biology might be instructive in the extending field of chemical biology in plants.



Strigolactones, signals for parasitic plants and arbuscular mycorrhizal fungi

The role of strigolactones for the formation and the regulation of the AM symbiosis as well as the possible implication of these compounds as plant signals in other soil-borne plant–microbe interactions are discussed.

Isolation of strigol, a germination stimulant for Striga asiatica, from host plants

The isolation of strigol is reported as the major Striga seed germination stimulant in maize and proso millet rootExudates and as a minor component of the total activity in sorghum root exudates.

Strigolactones: structures and biological activities.

Although the C-2'-(R) stereochemistry was thought to be an important structural feature for potent germination stimulation activity, 2'-epi-strigolactones were found in root exudates of tobacco, rice, pea and other plant species, indicating that at least some plants produce both epimers.

The Strigolactone Germination Stimulants of the Plant-Parasitic Striga and Orobanche spp. Are Derived from the Carotenoid Pathway1

For these three host and two parasitic plant species, the strigolactone germination stimulants are derived from the carotenoid pathway, and this finding is discussed as an explanation for some phenomena that have been observed for the host-parasitic plant interaction.

Strigolactones: ecological significance and use as a target for parasitic plant control.

Knowing of the germination stimulants-strigolactones-for the root parasitic plants Striga and Orobanche spp.

Characterization of Strigolactones, Germination Stimulants for the Root Parasitic Plants Striga and Orobanche, Produced by Maize, Millet and Sorghum

Results imply that 5-deoxy-strigol is one of major germination stimulants of gramineous plants and that major stimulants may differ even among cultivars within the same species.

Strigolactones, host recognition signals for root parasitic plants and arbuscular mycorrhizal fungi, from Fabaceae plants.

The regulation of strigolactone production and/or exudation seems to be closely related to the nutrient acquisition strategy of the plants.

Strigolactones: a new hormone with a past.