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231226s2022 xx |||||o 00| ||eng c |
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|a 10.2166/wst.2022.392
|2 doi
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|a pubmed25n1167.xml
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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|a Zhou, Wei
|e verfasserin
|4 aut
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|a Photosynthetic response, antioxidase activity, and cadmium uptake and translocation in Monochoria korsakowii with cadmium exposure
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 15.12.2022
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|a Date Revised 22.12.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a To identify the tolerance mechanisms of wetland plants exposed to heavy metal, a hydroponic experiment was used to investigate variations in photosynthetically physiological parameters and antioxidant enzyme activities in leaves of Monochoria korsakowii exposed to 0.05, 0.15, 0.30, and 0.45 mM Cd2+ for 7 d. The Cd2+ concentrations in the plant roots, stems, and leaves were also investigated. Cd2+ exposure significantly decreased the total chlorophyll content, net photosynthetic rate, intercellular carbon dioxide concentration, and stomatal conductance, while stomatal limitation value had the opposite trend (P < 0.05). During Cd2+ stress, ascorbate peroxidase activity significantly increased (P < 0.05). The translocation factor for Cd2+ was significantly lower than that of the control, and both were less than 1 (P < 0.05). Cd2+ stress damaged the photosynthetic apparatus in the leaves. During Cd2+ stress, M. korsakowii alleviated oxidative stress by increasing the activities of antioxidant enzymes, such as APX. Under 0.45 mM Cd2+ stress, increased heat dissipation was responsible for alleviating the photooxidative damage to photosynthetic organs in the leaves. Meanwhile, the majority of Cd2+ was immobilized in the roots, thus alleviating excessive Cd2+ phytotoxicity in the aboveground parts. Generally, M. korsakowii has potential application in the phytoremediation of low-cadmium-polluted water
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|a Journal Article
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|a Cadmium
|2 NLM
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|a 00BH33GNGH
|2 NLM
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|a Antioxidants
|2 NLM
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|a Chlorophyll
|2 NLM
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|a 1406-65-1
|2 NLM
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|a Soil Pollutants
|2 NLM
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| 700 |
1 |
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|a Xin, Jianpan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tian, Runan
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Water science and technology : a journal of the International Association on Water Pollution Research
|d 1986
|g 86(2022), 11 vom: 01. Dez., Seite 2974-2986
|w (DE-627)NLM098149431
|x 0273-1223
|7 nnas
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| 773 |
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|g volume:86
|g year:2022
|g number:11
|g day:01
|g month:12
|g pages:2974-2986
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|u http://dx.doi.org/10.2166/wst.2022.392
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