Study on Screening of Vegetable Varieties with Low Accumulation of Rare Earth Cerium and its Accumulation Characteristics

DOI

10.2991/ifeesm-17.2018.356How to use a DOI?

Keywords

Cerium, Species selected, Accumulation characteristics physiological and biochemical processes

Abstract

In this study, 17 kinds of vegetables were selected to make a contrast test ina nutrient solution cultured under the condition of 50 mg/L Ce pollution. Lactuca Sativa L., a low enrichment and normal growth, was selected by soil experiment to analyze the accumulation of Ce and its physiological and biochemical effects.The results of the experiments are showed as follows: (1) 17 kinds of vegetables grew in good condition under the same cerium concentration hydroponics.Theresults showed that the content of Ce was the highest in the edible part of Brassica Juncea, up to 98.21 mg/kg, while cerium accumulation in the edible part of Lactuca Sativa L. was the lowest, only 6.64 mg/kg. From the results we can identify that Lactuca Sativa L. belonged to the low accumulative vegetable.(2) Total and available cerium in rhizosphere soil of Lactuca Sativa L. showed a highly significant positive correlation (P<0.01), and cerium accumulation in edible parts of vegetables is significantly positive correlated (P<0.05) with the cerium content in soil. (3) With the increase of cerium content in soil, Lactuca sativa L. as low-accumulation vegetable varieties, its'antioxidant enzymes (SOD, POD, CAT) activity, proline content in plants increased at first and then decreased, and the content of MDA manifests a rising trend in general. This research has significant meaning for ensuring vegetable food safetyin polluted areas dealing with especially in rare earth mining areas.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Lu You
AU  - Lihang An
AU  - Wu Zhou
AU  - Minchao Liu
PY  - 2018/02
DA  - 2018/02
TI  - Study on Screening of Vegetable Varieties with Low Accumulation of Rare Earth Cerium and its Accumulation Characteristics
BT  - Proceedings of the 2017 3rd International Forum on Energy, Environment Science and Materials (IFEESM 2017)
PB  - Atlantis Press
SP  - 1977
EP  - 1986
SN  - 2352-5401
UR  - https://doi.org/10.2991/ifeesm-17.2018.356
DO  - 10.2991/ifeesm-17.2018.356
ID  - You2018/02
ER  -