DSpace
Buscar

 

RI UFLA (Universidade Federal de Lavras) >
DAG - Departamento de Agricultura >
DAG - Artigos publicados em periĆ³dicos >

Please use this identifier to cite or link to this item: http://repositorio.ufla.br/jspui/handle/1/1453

Title: Phytotoxicity of sorgoleone found in grain sorghum root exudates
???metadata.dc.creator???: Einhellig, Frank A.
Souza, Itamar F.
Keywords: Sorgoleone
Phytotoxin
Allelochemical
Allelopathy
Root exudate
Sorghum bicolor
Sorghums
Weed inhibition
Publisher: International Society of Chemical Ecology
Issue Date: 1992
Citation: EINHELLIG, F. A.; SOUZA, I. F. Phytotoxicity of sorgoleone found in grain sorghum root exudates. Journal of Chemical Ecology, [S.l.], v. 18, n. 1, p. 1-11, 1992.
Abstract: Root exudates of Sorghum bicolor consist primarily of a dihydroquinone that is quickly oxidized to a p-benzoquinone named sorgoleone. The aim of this investigation was to determine the potential activity of sorgoleone as an inhibitor of weed growth. Bioassays showed 125 tiM sorgoleone reduced radicle elongation of Eragrostis tef. In liquid culture, 50-#M sorgoleone treatments stunted the growth of Lemna minor. Over a 10-day treatment period, 10 tzM sorgoleone in the nutrient medium reduced the growth of all weed seedlings tested: Abutilon theophrasti, Datura stramonium, Amaranthus retroflexus, Setaria viridis, Digitaria sanguinalis, and Echinochloa crusgalli. These data show sorgoleone has biological activity at extremely low concentrations, suggesting a strong contribution to Sorghum allelopathy.
URI: http://www.springer.com/life+sciences/ecology/journal/10886
http://repositorio.ufla.br/jspui/handle/1/1453
???metadata.dc.language???: en_US
Appears in Collections:DAG - Artigos publicados em periĆ³dicos

Files in This Item:

There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


View Statistics

 


DSpace Software Copyright © 2002-2010  Duraspace - Feedback