Table 1.

Overview of all strigolactones identified to date

Type	Name	Plant speciesa	Referencesb
Strigol-type SLs	5-Deoxystrigol	Lotus japonicus, Sorghum bicolor, Pennisetum typhoideum, Nicotiana tabacum	(Akiyama et al., 2005; Awad et al., 2006; Xie et al., 2013)
	Strigol	Gossypium hirsutum, Sorghum bicolor, Panicum miliaceum	(Cook et al., 1966; Siame et al., 1993)
	Strigyl acetate	Gossypium hirsutum	(Cook et al., 1966)
	Sorgomol	Sorghum bicolor	(Xie et al., 2008)
	Sorgolactone	Sorghum bicolor	(Hauck et al., 1992)
	Strigone	Houttuynia cordata	(Kisugi et al., 2013)
	4α-Hydroxy-5-deoxystrigol/ Ent-2'-epi-orobanchol	Vigna unguiculate, Trifolium pratense, Nicotiana tabacum	(Ueno et al., 2011; Xie et al., 2013)
	4α-Acetoxy-5-deoxystrigol/ Ent-2'-epi-orobanchyl acetate	Vigna unguiculate, Trifolium pratense, Nicotiana tabacum	(Ueno et al., 2011; Xie et al., 2013)
	7β-Hydroxy-5-deoxystrigol	Houttuynia cordata	(Yoneyama et al., 2018b)
Orobanchol-type SLs	4-Deoxyorobanchol	Oryza sativa, Nicotiana tabacum	(Umehara et al., 2008; Xie et al., 2013)
	Orobanchol	Trifolium pratense, Oryza sativa, Nicotiana tabacum, Sorghum bicolor, Solanum lycopersicum, Medicago sativa, Pisum sativum	(Yokota et al., 1998; Awad et al., 2006; Xie et al., 2007; López‐Ráez et al., 2008; Yoneyama et al., 2008; Jamil et al., 2011)
	Orobanchyl acetate	Vigna unguiculata, Trifolium pratense, Pisum sativum, Glycine max	(Müller et al., 1992; Yokota et al., 1998; Xie et al., 2008; Yoneyama et al., 2008)
	Solanacol	Nicotiana tabacum, Solanum lycopersicum	(Xie et al., 2007; López‐Ráez et al., 2008)
	Solanacyl acetate	Nicotiana tabacum	(Xie et al., 2007, 2013)
	Fabacol	Pisum sativum	(Xie et al., 2009a)
	Fabacyl acetate	Pisum sativum	(Xie et al., 2009a)
	7-Oxoorobanchol	Linum usitatissimum, Cucumis sativus	(Xie et al., 2009b; Khetkam et al., 2014)
	7-Oxoorobanchyl acetate	Linum usitatissimum, Cucumis sativus	(Xie et al., 2009b; Khetkam et al., 2014)
	7α-Hydroxyorobanchol	Cucumis sativus	(Khetkam et al., 2014)
	7α-Hydroxyorobanchyl acetate	Cucumis sativus	(Khetkam et al., 2014)
	7β-Hydroxyorobanchol	Cucumis sativus	(Khetkam et al., 2014)
	7β-Hydroxyorobanchyl acetate	Cucumis sativus	(Khetkam et al., 2014)
	Medicaol	Medicago truncatula	(Tokunaga et al., 2015)
Noncanonical SLs	Zealactone	Zea mays	(Charnikhova et al., 2017; Xie et al., 2017)
	Zeapyranolactone	Zea mays	(Charnikhova et al., 2018)
	Avenaol	Avena strigosa	(Kim et al., 2014)
	Heliolactone	Helianthus annuus	(Ueno et al., 2014)
	Carlactone	Arabidopsis thaliana, Oryza sativa	(Seto et al., 2014)
	Carlactonoic acid	Arabidopsis thaliana, Oryza sativa, Selaginella moellendorffii, Populus trichocarpa	(Abe et al., 2014; Yoneyama et al., 2018a)
	Methyl carlactonoate	Arabidopsis thaliana	(Abe et al., 2014; Seto et al., 2014)
	3-Hydroxycarlactone	Oryza sativa	(Baz et al., 2018)
	Lotuslactone	Lotus japonicus	(Xie et al., 2019)
	Putative SL in rice	Oryza sativa	(Yoneyama et al., 2018b)
	Putative SL in black oat	Avena strigosa	(Yoneyama et al., 2018b)

^aFor some SLs (5-deoxystrigol, 4-deoxyorobanchol, orobanchol, orobanchyl acetate) only representative plant species with more than two reports are shown.

^bOnly the first report per plant species is shown here.