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The lectins and lectin like proteins of tepary beans phaseolus acutifolius and tepary common bean phaseolus vulgaris hybrids


The lectins and lectin like proteins of tepary beans phaseolus acutifolius and tepary common bean phaseolus vulgaris hybrids



Journal of Food Biochemistry 14(2): 117-126



ISSN/ISBN: 0145-8884

DOI: 10.1111/j.1745-4514.1990.tb00825.x

High levels of lectin activity were found in sixty cultivated and ten wild tepary (Phaseolus acutifolius) accessions. No lectin deficient varieties were observed and all examples studied contained both the phytohemagglutinin-E and L-like lectins previously described (Pusztai et al. 1987). There appeared to be no obvious differences between the wild and cultivated forms of the tepary lectins and all teparies studied contained lectin-like proteins in addition to the tepary lectins. One of the lectin related proteins (40 Kdalton subunit) was present in all teparies and may be comparable to arcelin, a lectin found in certain wild accessions of Phaseolus vulgaris. All wild teparies contained a lectin related polypeptide of about 34 Kdaltons which appears to distinguish the wild teparies from the cultivated forms. Three tepary-common bean hybrids were examined and one hybrid was found to be expressing both tepary and common bean lectin genes.

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Accession: 007913914

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