Phytoremediation potential of oat (Avena sativa L.) in soils contaminated with cadmium
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Kuupäev
2024
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Kirjastaja
Estonian University of Life Sciences
Abstrakt
Human activities can cause enormous damage to agricultural soils through the
accumulation of toxic metals in the soil. The identification of plants capable of accumulating
relatively large amounts of these compounds in plant tissues with the aim of reducing or limiting
soil toxicity is of great interest. Two independent pot experiments were conducted to evaluate the
phytoremediation potential of different varieties of oat (Avena sativa L.) grown in soil
contaminated with cadmium (Cd, 50 mg kg-1 soil). Eight varieties were cultivated for 21 days in
Cd- contaminated soil. Five varieties of oat were exposed to Cd at the third leaf stage, followed
one week later by exposure to oat powdery mildew (Blumeria graminis f. sp. avenae) for 35 days.
In general, the tested varieties accumulated more Cd in the roots than in the shoots and showed a
high tolerance to Cd. Metal accumulation in shoots was lower after 21 days of cultivation
(8.30–17.27 mg Cd kg-1
) than after 42 days (13.72–35.20 mg Cd kg-1
) and was the highest in
tissues of plants infected with B. graminis (48.17–96.20 mg kg-1
). In conclusion, our results
indicate a good phytostabilization and remediation potential of oat (varieties Racoon and Vaclav)
for soil contaminated with cadmium.
Kirjeldus
Received: October 1st, 2023 ; Accepted: November 28th, 2023 ; Published: December 15st, 2023 ; Correspondence: bpirselova@ukf.sk
Märksõnad
Avena sativa L., cadmium tolerance, phytostabilization, remediation, articles