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Accumulation of elements by submerged (Stuckenia pectinata (L.) Börner) and emergent (Phragmites australis (Cav.) Trin. ex Steud.) macrophytes under different salinity levels.
Plant Physiology and Biochemistry ( IF 6.1 ) Pub Date : 2020-05-26 , DOI: 10.1016/j.plaphy.2020.05.019
O V Anishchenko 1 , A P Tolomeev 2 , E A Ivanova 3 , A V Drobotov 1 , A A Kolmakova 1 , I V Zuev 3 , I V Gribovskaya 1
Affiliation  

Accumulation of essential/beneficial and non-essential chemical elements by submerged (Stuckenia pectinata (L.) Börner) and emergent (Phragmites australis (Cav.) Trin. ex Steud.) rooted macrophytes in three water bodies was studied as dependent on water salinity (specific conductivity) and main environmental factors (temperature, pH of water, growing period, element contents in water and sediments). Inductively coupled plasma optical emission spectrometry (ICP - OES) was used for the element detection in the plants, sediments, and water. Multivariate statistics redundancy analysis (RDA) showed that investigated factors together explained 37.8 - 44.7% and 29.9 - 42.6% of the essential/beneficial and non-essential elements variability, respectively, whereas salinity was one of the main factors determining the accumulation of a number of elements (Mg, S, Na, Li, Sr, Sb) by the macrophytes. A decrease in the essential element contents (K, P, N, Cu, Zn) was observed in both species of the macrophytes during the growing season. Environmental factors (salinity, growing period, and pH) were more significant than the element contents in water and the sediments for the essential/beneficial element accumulation by two species of the macrophytes. The element contents in the sediments to a greater extent determined non-essential element accumulation by P. australis than by S. pectinata. The study showed that the efficiency of using P. australis and S. pectinata for remediation of aquatic ecosystems contaminated by heavy metals should not decrease with a salinity increase.



中文翻译:

在不同盐度水平下,淹没的(Stuckenia pectinata(L.)Börner)和紧急的(Phragmites australis(Cav。)Trin。ex Steud。)大型植物的元素积累。

淹没的(Stuckenia pectinata(L.)Börner)和出苗的(Phragmites australis)积累必需/有益和非必需的化学元素(骑士)特林 根据水盐度(比电导率)和主要环境因素(温度,水的pH值,生长期,水和沉积物中的元素含量)研究了在三个水体中生根的大型植物。电感耦合等离子体发射光谱法(ICP-OES)用于植物,沉积物和水中的元素检测。多变量统计冗余分析(RDA)表明,调查因素共同解释了基本要素/有益要素和非基本要素变异的37.8-44.7%和29.9-42.6%,而盐度是决定大量积累的主要因素之一大型植物对元素(Mg,S,Na,Li,Sr,Sb)的分析。必需元素含量(K,P,N,Cu,在生长季节,在两种大型植物中均观察到了Zn)。环境因素(盐度,生长期和pH)比水和沉积物中两种元素的大型植物的必需/有益元素积累的元素含量更为重要。沉积物中的元素含量在很大程度上决定了非必需元素的积累P. austtralisS. pectinata。研究表明,利用盐碱菌对澳大利亚重金属污染果胶链霉菌进行治理的效率不应随盐度的增加而降低。

更新日期:2020-06-25
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