Glyceollins are a family of prenylated pterocarpans found in ineffective types of nodule in soybean in response to symbiotic infection.
[1] It possesses two chiral centers and can be asymmetrically synthesized chemically at a gram level scale.
[2] Molecules found in the family are : They are phytoalexins[3] with an antiestrogenic activity.
[3] Kaplan et al. 1980 finds nematicidal activity against Meloidogyne incognita.
[3] Ziegler & Pontzen 1982 find Phytophthora megasperma produces an extracellular invertase, a mannanglycoprotein (a glycoprotein of mannan), which prevents glyceollin accumulation not by its enzymatic action but due to an effect of its carbohydrate moiety.