title: Nitrification inhibitors from the roots of Leucaena leucocephala.
abstract: The nitrification inhibition (NI) bioassay guided fractionation of the methanol extract of lyophilized and milled roots of Leuceana leucocephala resulted in the isolation of four compounds, 1-4, as confirmed from their 1H and 13C NMR spectral data. Compound 1, gallocatechin, was the most active NI inhibitor at 12 microg/mL. Epigallocatechin, 2, and epicatechin, 4, isolated as mixtures, were not assayed individually for their NI inhibitory activities against the nitrification bacterium Nitrosomonas europaea.
authors: Department of Horticulture and National Food Safety and Toxicology Center and Department of Crop and Soil Sciences, Michigan State University, East Lansing, Michigan 48824, USA.
authors: A J
authors: AJ
authors: Erickson
authors: R S
authors: RS
authors: Ramsewak
authors: A J
authors: AJ
authors: Smucker
authors: M G
authors: MG
authors: Nair
mesh_terms: D002392:Catechin / Q000031:analogs & derivatives / Q000032:analysis; D007887:Fabaceae / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D009584:Nitrogen / Q000037:antagonists & inhibitors* / Q000378:metabolism; D009606:Nitrosomonas / Q000378:metabolism*; D010946:Plants, Medicinal
chemical_list: D002392:Catechin; C057580:gallocatechol; D009584:Nitrogen