High lithium tolerance of Apocynum venetum seeds during germination

High lithium tolerance of Apocynum venetum seeds during germination Identification and use of lithium (Li) accumulator plants is a promising strategy to remediate Li-contaminated soil. Apocynum venetum is reported as a Li accumulator. However, its tolerance to Li salt during germination is still unknown. The primary aim of this study was to investigate the effects of two Li salts on seed germination of A. venetum. At the same concentrations, germination percentages in LiCl solution were higher than that in Li2CO3 solution. At 25 °C, seeds germinated to 4–90% at 0–400 mmol L−1 LiCl and 3–91% at 0–150 mmol L−1 Li2CO3. Low concentration (0–50 mmol L−1) of LiCl did not significantly affect germination percentage. The simulated critical value (when germination percentage is 50%) in LiCl solution is 196 mmol L−1, and 36 mmol L−1 for Li2CO3. Activity of α-amylase, contents of MDA, soluble sugar, and proline were dramatically affected by Li salts, especially at medium and late germination stages. When compared with control, α-amylase activity of seeds under 25 mmol L−1 LiCl and 10 mmol L−1 Li2CO3 did not show significant difference. Germination percentage and index, radicle length, and physiological parameters indicate A. venetum seeds are highly tolerant to Li salts during germination, especially LiCl. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Environmental Science and Pollution Research Springer Journals

High lithium tolerance of Apocynum venetum seeds during germination

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Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer-Verlag GmbH Germany, part of Springer Nature
Subject
Environment; Environment, general; Environmental Chemistry; Ecotoxicology; Environmental Health; Atmospheric Protection/Air Quality Control/Air Pollution; Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution
ISSN
0944-1344
eISSN
1614-7499
D.O.I.
10.1007/s11356-018-1196-y
Publisher site
See Article on Publisher Site

Abstract

Identification and use of lithium (Li) accumulator plants is a promising strategy to remediate Li-contaminated soil. Apocynum venetum is reported as a Li accumulator. However, its tolerance to Li salt during germination is still unknown. The primary aim of this study was to investigate the effects of two Li salts on seed germination of A. venetum. At the same concentrations, germination percentages in LiCl solution were higher than that in Li2CO3 solution. At 25 °C, seeds germinated to 4–90% at 0–400 mmol L−1 LiCl and 3–91% at 0–150 mmol L−1 Li2CO3. Low concentration (0–50 mmol L−1) of LiCl did not significantly affect germination percentage. The simulated critical value (when germination percentage is 50%) in LiCl solution is 196 mmol L−1, and 36 mmol L−1 for Li2CO3. Activity of α-amylase, contents of MDA, soluble sugar, and proline were dramatically affected by Li salts, especially at medium and late germination stages. When compared with control, α-amylase activity of seeds under 25 mmol L−1 LiCl and 10 mmol L−1 Li2CO3 did not show significant difference. Germination percentage and index, radicle length, and physiological parameters indicate A. venetum seeds are highly tolerant to Li salts during germination, especially LiCl.

Journal

Environmental Science and Pollution ResearchSpringer Journals

Published: Jan 17, 2018

References

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