TY - JOUR
T1 - Stable strontium isotope fractionation in hydroponically grown mung and soy bean sprouts
AU - Choi, Hye Bin
AU - Shin, Woo Jin
AU - Liu, Hou Chun
AU - Chen, Yan Hong
AU - Hsieh, Jia You
AU - Lee, Kwang Sik
N1 - Funding Information:
This work was supported by a grant from Korea Basic Science Institute ( C260200 ) to W.-J. Shin and by a grant from the Ministry of Science and Technology ( MOST 110-2636-M-006-017 ) Taiwan to H.-C. Liu.
Publisher Copyright:
© 2022 The Authors
PY - 2023/3
Y1 - 2023/3
N2 - This study investigated whether stable strontium isotope (88Sr/86Sr) fractionation occurs during nutrient uptake by bean plants. Mung and soy beans were cultivated hydroponically using two nutrient solutions with different strontium (Sr) isotope compositions. The Sr and calcium (Ca) concentrations, 87Sr/86Sr ratios and δ88/86Sr values of the seeds, organs, initial nutrient solutions, and residual nutrient solutions were measured. The triple Sr isotope plot illustrates that bean sprout organs deviated considerably from the binary end-member mixing lines between intact bean seeds and the initial nutrient solutions, indicating fractionation of δ88/86Sr. In addition, the residual nutrient solutions had heavier δ88/86Sr values than the initial nutrient solutions, further supporting preferential uptake of lighter Sr isotopes by bean sprouts. This study indicates that stable Sr isotope fractionation occurs during nutrient uptake by bean plants, and that controlled hydroponic experiments are highly effective for observing this process.
AB - This study investigated whether stable strontium isotope (88Sr/86Sr) fractionation occurs during nutrient uptake by bean plants. Mung and soy beans were cultivated hydroponically using two nutrient solutions with different strontium (Sr) isotope compositions. The Sr and calcium (Ca) concentrations, 87Sr/86Sr ratios and δ88/86Sr values of the seeds, organs, initial nutrient solutions, and residual nutrient solutions were measured. The triple Sr isotope plot illustrates that bean sprout organs deviated considerably from the binary end-member mixing lines between intact bean seeds and the initial nutrient solutions, indicating fractionation of δ88/86Sr. In addition, the residual nutrient solutions had heavier δ88/86Sr values than the initial nutrient solutions, further supporting preferential uptake of lighter Sr isotopes by bean sprouts. This study indicates that stable Sr isotope fractionation occurs during nutrient uptake by bean plants, and that controlled hydroponic experiments are highly effective for observing this process.
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U2 - 10.1016/j.jfca.2022.105081
DO - 10.1016/j.jfca.2022.105081
M3 - Article
AN - SCOPUS:85143796259
SN - 0889-1575
VL - 116
JO - Journal of Food Composition and Analysis
JF - Journal of Food Composition and Analysis
M1 - 105081
ER -