Effect of copper on growth of an aquatic macrophyte, Elodea canadensis

2002 ◽  
Vol 120 (2) ◽  
pp. 307-311 ◽  
Author(s):  
Tarun K. Mal ◽  
Peter Adorjan ◽  
Andrea L. Corbett
Keyword(s):  
Aquatic Macrophyte ◽  
Elodea Canadensis ◽  
Effect Of Copper

scholarly journals Interaction between Cadmium and Manganese in Aquatic Macrophytes (Illustrated by Elodea Canadensis)

2016 ◽  
pp. 82
Author(s):  
Keyword(s):  
Heavy Metals ◽  
Chlorophyll Fluorescence ◽  
Quantum Efficiency ◽  
Photosynthetic Pigments ◽  
Aquatic Macrophytes ◽  
Aquatic Plant ◽  
Aquatic Macrophyte ◽  
Mutual Effect ◽  
Elodea Canadensis ◽  
Model Systems

The mutual effect of two heavy metals – toxic (Cd2+) and essential (Mn2+) on the aquatic plant was studied in model systems. Experiments were performed on submerged aquatic macrophyte – Elodea canadensis Michx. Elodea shoots (10–15 cm in length) were incubated for 5 days in a nutrient solution with CdSO4 and MnSO4 at the concentration of 100 μmoles (added separate and combined). The following characteristics were analyzed in Elodea leaves: the accumulation of Cd2+ and Mn2+; the content of photosynthetic pigments and its ratio; the level of chlorophyll fluorescence (quantum efficiency, Fv/Fm). Incubation of Elodea plants with Cd2+ increased its content by more than 1000 times compared to the control. Incubation with Mn2+ increased its content by 10 times. The combined effect of cadmium and manganese reduced Cd2+ accumulation in the Elodea leaves almost in 2 times in comparison with its separate action, while the Mn2+ accumulation was decreased only by 40 %. Under the cadmium action the content of all photosynthetic pigments was decreased, while by the manganese action – only chlorophylls were reduced. It was shown that Mn2+ mitigated Cd2+ toxicity. The content of chlorophyll a, carotenoids and quantum efficiency (Fv/Fm) was decreased to the lesser degree than under the separate cadmium action. Probably this is caused by the inhibition of its uptake in the presence of manganese.

Effect of Lead Toxicity on Aquatic Macrophyte Elodea canadensis Michx.

2009 ◽  
Vol 83 (2) ◽  
pp. 249-254 ◽  
Author(s):  
Muhittin Dogan ◽  
Saadet Demirors Saygideger ◽  
Ugur Colak
Keyword(s):  
Aquatic Macrophyte ◽  
Lead Toxicity ◽  
Elodea Canadensis

scholarly journals Application of the LUminometric Methylatoion Assay for plant ecological researches: the study of global DNA methylation in leaves of Elodea canadensis under laboratory conditions and in leaves of fen orchid from wild populations

Plant Omics ◽  
2020 ◽  
pp. 30-36
Author(s):  
Natalja Škute ◽  
Marina Savicka ◽  
Aleksandrs Petjukevičs ◽  
Nadežda Harlamova
Keyword(s):  
Dna Methylation ◽  
Environmental Factors ◽  
Methylation Level ◽  
Aquatic Macrophyte ◽  
Elodea Canadensis ◽  
Global Dna Methylation ◽  
Dna Amount ◽  
Methylation Assay ◽  
Liparis Loeselii ◽  
Plant Ecological

The epigenetic changes in the genome of plants are one of the important regulatory mechanisms in response to the environmental factors. The LUminometric Methylation Assay (LUMA) requires a relatively small DNA amount, a short processing time and is easily adapted for species with a non-resolved genome. The LUMA has not been previously used for ecological research of plants. In this research, LUMA was used for the first time to investigate the changes of global DNA methylation under different environmental factors in the leaves of different plants. The influence of salinity on global DNA methylation was studied on aquatic macrophyte Elodea canadensis Michx, which grew in aquatic tanks under different NaCl concentrations. After the third week of growth, the HpaII/MspI ratio was measured by LUMA and global DNA methylation percentages were calculated. The results showed salt stress-induced changes in the global DNA methylation level in E.canadensis leaves, compared to control. The response was salt dose-dependent. The changes of global DNA methylation in wildlife plant populations were analogically assessed on fen orchid Liparis loeselii (L.) Rich. It was shown that global DNA methylation level was higher in leaves of these plants in Engure Lake, where there are temporary changes in water regime, compared to leaves of plants from other places. It was assumed that global GC-DNA methylation plays an essential role in the survival of this plant. Therefore, we show the possibilities of using the LUMA method for epigenetic study of different plants ecological researches.

scholarly journals Accumulation of copper by the aquatic macrophyte Salvinia biloba Raddi (Salviniaceae)

2017 ◽  
Vol 78 (1) ◽  
pp. 133-139 ◽  
Author(s):  
F. Freitas ◽  
S. Lunardi ◽  
L. B. Souza ◽  
J. S. C. von der Osten ◽  
R. Arruda ◽  
...  
Keyword(s):  
Atomic Absorption Spectroscopy ◽  
Aquatic Ecosystems ◽  
Copper Content ◽  
Aquatic Macrophytes ◽  
Aquatic Macrophyte ◽  
Control Treatment ◽  
Aquatic Environments ◽  
Cu Accumulation ◽  
Interaction Treatment ◽  
Effect Of Copper

Abstract Aquatic macrophytes have properties and mechanisms which are useful for the removal of substances in solution, commonly used in phytoremediation processes in aquatic environments. This study evaluated the performance of copper (Cu) accumulation by Salvinia biloba Raddi (Salviniaceae) in different metal concentrations (1, 3 and 5 µg mL-1), as well as the control treatment, measured at intervals of 0, 7 and 14 days under laboratory conditions, with control as to pH and luminosity. After the experiment, the S. biloba biomass was washed, kiln dried, crushed and subjected to the process of digestion, and subsequently the accumulated copper content was determined by atomic absorption spectroscopy. The results showed that S. biloba is apt at accumulating copper, varying significantly between different treatments and days of exposure to the contaminant, as well as its interaction (treatment × days). The highest accumulation values were observed in treatment with 5 µg mL-1, which at 14 days, with 11,861 µg g-1 of copper. We observed symptoms of toxicity and mortality in plants, probably indicating the effect of copper on the species when at high levels. Salvinia biloba is an efficient species in the removal of copper in solution, its recommendation as a remediating agent in aquatic ecosystems being possible.

Enrofloxacin and Roundup® interactive effects on the aquatic macrophyte Elodea canadensis physiology

2019 ◽  
Vol 249 ◽  
pp. 453-462 ◽  
Author(s):  
Marcelo Pedrosa Gomes ◽  
Davi Santos Tavares ◽  
Vinícius Sobrinho Richardi ◽  
Raizza Zorman Marques ◽  
Natalia Wistuba ◽  
...  
Keyword(s):  
Aquatic Macrophyte ◽  
Elodea Canadensis ◽  
Interactive Effects

scholarly journals Feeding selectivity and growth of Nile tilapia (Oreochromis niloticus L.) fed on temperate-zone aquatic macrophytes

2011 ◽  
Vol 49 (No. 6) ◽  
pp. 271-278 ◽  
Author(s):  
I. Šetlíková ◽  
Z. Adámek
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Aquatic Macrophyte ◽  
Myriophyllum Spicatum ◽  
Dry Weight ◽  
Elodea Canadensis ◽  
Potamogeton Pectinatus ◽  
Feeding Selectivity ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Macrophyte Species

Feeding selectivity of Nile tilapia (Oreochromis niloticus L.) juveniles (9.3&ndash;20.9 g) to four aquatic macrophyte species and tilapia growth were studied in 4 consecutive experiments. Plant diet was provided to 8 tanks containing 20 fishes for 5 days. The fish were fed a carp diet between 4 experiments for 14 days. The consumption of 4 aquatic macrophyte species differed significantly [F(3,252) = 39.6; P &lt; 10<sup>&ndash;6</sup>]. Elodea canadensis was the most preferred plant (Chesson selectivity index = 0.50 &plusmn; 0.05, n = 4). Potamogeton pectinatus and Spirodela polyrhiza were consumed with about equal preference. Myriophyllum spicatum was the least preferred species. Elodea canadensis contained relatively more phosphorus, potassium and ash than the other three species. The daily plant dry weight intake ranged between 0.79 and 2.26% of body weight. The fish grew during the first two experiments (SGR = 2.54 and 3.18%/d, respectively), but lost weight during the 3rd and 4th experiments (SGR = &ndash;1.75 and &ndash;1.71%/d, respectively). &nbsp;

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