摘要
Dear Editor,Strigolactones （SLs） are a class of carotenoid-derived plant hor-mones that regulate shoot branching among other developmental processes （Gomez-Roldan et al., 2008; Umehara et al., 2008; AI-Babili and Bouwmeester, 2015）. In addition, SLs are released by roots as a chemical signal attracting symbiotic arbuscular mycorrhizal fungi. However, this signal is also perceived by seeds of root parasitic weeds, announcing the presence of a host and triggering germination （AI-Babili and Bouwmeester, 2015）. Natural SLs consist of a butenolide ring （D ring） connected by an enol ether bridge to a tricyclic lactone （ABC rings） in canonical SLs, such as strigol, and to a variable, second moiety in non-canonical SLs, such as methyl carlactonoate.
Dear Editor,Strigolactones （SLs） are a class of carotenoid-derived plant hor-mones that regulate shoot branching among other developmental processes （Gomez-Roldan et al., 2008; Umehara et al., 2008; AI-Babili and Bouwmeester, 2015）. In addition, SLs are released by roots as a chemical signal attracting symbiotic arbuscular mycorrhizal fungi. However, this signal is also perceived by seeds of root parasitic weeds, announcing the presence of a host and triggering germination （AI-Babili and Bouwmeester, 2015）. Natural SLs consist of a butenolide ring （D ring） connected by an enol ether bridge to a tricyclic lactone （ABC rings） in canonical SLs, such as strigol, and to a variable, second moiety in non-canonical SLs, such as methyl carlactonoate.
