Increased Levels of Antinutritional and/or Defense Proteins Reduced the Protein Quality of a Disease-ResistantSoybean Cultivar

Nutrients

Henrique P. Oliveira¹  Ilka M. Vasconcelos¹  José Tadeu A. Oliveira¹  Daniele O. B. Sousa¹  Davi F. Farias¹  Ana. F. U. Carvalho²  Ivan Castelar³ 

[1] Department of Biochemistry and Molecular Biology, Federal University of Ceará, Campus do Pici, , Fortaleza 604440-900, CE, Brazil;Department of Biology, Federal University of Ceará, Campus do Pici, Fortaleza 60440-900,CE, Brazil;Department of Finance, Federal University of Ceará, Campus Benfica, 60440-970, Fortaleza60020-180, CE, Brazil;

关键词: Seridó-RCH;    unintended traits;    conventional breeding;    nutritional value;    plant protein;   

DOI  :  10.3390/nu7075269

来源: DOAJ

【 摘 要 】

The biochemical and nutritional attributes of two soybean (Glycine max (L.) Merr.) cultivars, one susceptible (Seridó) and the other resistant (Seridó-RCH) to stem canker, were examined to assess whether the resistance to pathogens was related to levels of antinutritional and/or defense proteins in the plant and subsequently affected the nutritional quality. Lectin, urease, trypsin inhibitor, peroxidase and chitinase activities were higher in the resistant cultivar. Growing rats were fed with isocaloric and isoproteic diets prepared with defatted raw soybean meals. Those on the Seridó-RCH diet showed the worst performance in terms of protein quality indicators. Based on regression analysis, lectin, trypsin inhibitor, peroxidase and chitinase appear to be involved in the resistance trait but also in the poorer nutritional quality of Seridó-RCH. Thus, the development of cultivars for disease resistance may lead to higher concentrations of antinutritional compounds, affecting the quality of soybean seeds. Further research that includes the assessment of more cultivars/genotypes is needed.

【 授权许可】

Unknown