Effect of the cp4-epsps gene on metal bioavailability in maize and soybean using bionic gastrointestinal tracts and ICP-MS determination.
The transformation and metabolism of dietary compounds are affected significantly by gut microbiota. Hence, gut microbiota are used to improve bionic gastrointestinal tracts. The effect of the cp4-epsps gene on metal bioavailability was proved by the comparison of the affinity-liposome metal content ratio (AMCR) in transgenic and conventional crops. The bioavailability of V, Mn, Co, Ga, Ag, Ba, and Pb in roundup ready soybean decreased significantly because the ratio of AMCR (R(AMCR)) in the transgenic crop and its corresponding conventional type ranged from 0.36 to 0.69. In roundup ready maize, metal bioavailability decreased for Li and Cr (i.e., R(AMCR) was 0.26 and 0.39, respectively) but increased for V, Co, and Pb (i.e., R(AMCR) was 1.48, 2.07, and 2.12, respectively). Compared with conventional crops, safe dosage and maximum consumption of roundup ready crops were 1.59 times for soybean and 0.78 times for maize.
Department of Chemistry, Fujian Province University Key Laboratory of Modern Analytical Science and Separation Technology, Zhangzhou Normal University, Zhangzhou, China. lishunxing@fjzs.edu.cn
Shun-Xing
SX
Li
Li-Hui
LH
Chen
Feng-Ying
FY
Zheng
Yan-Cai
YC
Li
D001682:Biological Availability; D004032:Diet; D004063:Digestion; D041981:Gastrointestinal Tract / Q000187:drug effects* / Q000378:metabolism / Q000382:microbiology; D017343:Genes, Plant; D006801:Humans; D019216:Metals, Heavy / Q000378:metabolism*; D064307:Microbiota; D030821:Plants, Genetically Modified / Q000737:chemistry / Q000235:genetics; D012307:Risk Factors; D013025:Glycine max / Q000737:chemistry / Q000235:genetics*; D003313:Zea mays / Q000737:chemistry / Q000235:genetics*
D019216:Metals, Heavy