Disclaimer: The entire contents of this website are based upon the opinions of Dr. Mercola, unless otherwise noted. Individual articles are based upon the opinions of the respective author, who retains copyright as marked. The information on this website is not intended to replace a one-on-one relationship with a qualified health care professional and is not intended as medical advice. It is intended as a sharing of knowledge and information from the research and experience of Dr. Mercola and his community. Dr. Mercola encourages you to make your own health care decisions based upon your research and in partnership with a qualified health care professional. If you are pregnant, nursing, taking medication, or have a medical condition, consult your health care professional before using products based on this content.
Strigolactones are plant hormones that stimulate the branching and growth of symbiotic arbuscular mycorrhizal fungi , increasing the probability of contact and establishment of a symbiotic association between the plant and fungus.   Strigolactones also inhibit plant shoot branching,   and trigger germination of parasitic plant seeds (for example Striga , from which they gained their name).  Strigolactones are carotenoid -derived and contain a labile ether bond that is easily hydrolyzed in the rhizosphere , meaning that there is a large concentration gradient between areas near the root and those further away. In 2009, strigolactone biosynthesis was found to be DWARF27-dependent.