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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Analysis of seed phorbol-ester and curcin content together with genetic diversity in multiple provenances of Jatropha curcas L. from Madagascar and Mexico
Plant Physiology and Biochemistry, Volume 49, No. 10, Year 2011
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Description
Jatropha curcas L. has been promoted as an oilseed crop for use to meet the increased world demand for vegetable oil production, and in particular, as a feedstock for biodiesel production. Seed meal is a protein-rich by-product of vegetable oil extraction, which can either be used as an organic fertilizer, or converted to animal feed. However, conversion of J. curcas seed meal into animal feed is complicated by the presence of toxins, though plants producing " edible" or " non-toxic" seeds occur in Mexico. Toxins present in the seeds of J. curcas include phorbol esters and a type-I ribosome inactivating protein (curcin). Although the edible seeds of J. curcas are known to lack phorbol esters, the curcin content of these seeds has not previously been studied. We analyzed the phorbol ester and curcin content of J. curcas seeds obtained from Mexico and Madagascar, and conclude that while phorbol esters are lacking in edible seeds, both types contain curcin. We also analyzed spatial distribution of these toxins in seeds. Phorbol-esters were most concentrated in the tegmen. Curcin was found in both the endosperm and tegmen. We conclude that seed toxicity in J. curcas is likely to be due to a monogenic trait, which may be under maternal control. We also conducted AFLP analysis and conclude that genetic diversity is very limited in the Madagascan collection compared to the Mexican collection. © 2011 Elsevier Masson SAS.
Authors & Co-Authors
He, Wei
United Kingdom, York
University of York
King, Andrew J.
United Kingdom, York
University of York
Khan, Awais
United Kingdom, York
University of York
Cuevas, Jesús A.
Mexico, Texcoco
Universidad Autónoma Chapingo
Ramiaramanana, Danièle
Madagascar
Fofifa Fianarantsoa
Graham, Ian A.
United Kingdom, York
University of York
Statistics
Citations: 80
Authors: 6
Affiliations: 3
Identifiers
Doi:
10.1016/j.plaphy.2011.07.006
ISSN:
09819428
Research Areas
Environmental
Genetics And Genomics
Maternal And Child Health
Study Locations
Madagascar