Time dependent uptake, bioaccumulation and biotransformation of cell free crude extract microcystins from Lake Amatitlán, Guatemala by Ceratophyllum demersum, Egeria densa and Hydrilla verticillata

Romero-Oliva, Claudia; Contardo-Jara, Valeska; Pflugmacher, Stephan

doi:10.1016/j.toxicon.2015.08.017

Cited by 28 publications

(15 citation statements)

References 43 publications

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“…For example, studies have shown that floating plants such as water hyacinth ( Eichhornia crassipes ) [2], emergent plants such as cattail ( Typha. latifolia ) [3], and submerged plants such as Hydrilla verticillata [4,5], Ceratophyllum demersum [5], and Potamogeton malaianus [6] have significant capacities to accumulate heavy metals. Because of their capacity to accumulate heavy metals, several species of aquatic macrophytes such as H. verticillata and water hyacinth have been used to remove heavy metals from waste water.…”

Section: Introductionmentioning

confidence: 99%

Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin

Bai

Liu

et al. 2018

IJERPH

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We investigated the concentrations of 10 heavy metals in Potamogeton malaianus, Nymphoides peltata, Eichhornia crassipes, and Hydrilla verticillata to evaluate their potential to bioaccumulate heavy metals and related influencing factors in Taihu Lake. Enrichment factor (EF) values of Cu, Cr, Mn, Ni, Zn, Co, Pb, and V were above 2.0, indicating moderate to significant contamination in sediment. Most of Ti, V, Cr, Mn, and Ni in P. malaianus, E. crassipes, and H. verticillata and V in N. peltata were within excess/toxic level in plants, but higher than normal level. Even though no aquatic plants in this study were identified as a hyperaccumulator, relatively higher concentrations in aquatic plants were found in Taihu Lake than have been found in other previous studies. Heavy metal in submerged plants, especially in their stems, seemed to be more closely related to metals in water and sediment than those in floating-leaf plants. Ratios of metals in stem versus leaves in all plants ranged from 0.2 to 25.8, indicating various accumulation capabilities of plant organs. These findings contribute to the application of submerged aquatic plants to heavy metal removal from moderately contaminated lakes.

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Section: Introductionmentioning

confidence: 99%

Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin

Bai

Liu

et al. 2018

IJERPH

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“…The two floating macrophytes Ceratophyllum demersum L. and Lemna minor had the highest MC concentrations in their tissues. This is because they float on the surface of water together with algal cells or scum, and they can absorb the MCs rapidly as soon as MCs were released into water from algal cells [ 43 , 44 ]. This was further demonstrated by the significant positive relationship between MCs in Ceratophyllum and MCs in algal cells.…”

Section: Discussionmentioning

confidence: 99%

A Systematic Investigation into the Environmental Fate of Microcystins and The Potential Risk: Study in Lake Taihu

Jia

Chen

Lauridsen

2016

Toxins

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A systematic investigation was conducted in Lake Taihu in autumn of 2013 and 2014, in order to understand the environmental fate of microcystins (MCs) and evaluate the health risk from MCs. Samples of water, algal cells, macrophytes, shrimps and fish were taken to detect MCs by HPLC-MS/MS after solid phase extraction. Widespread MC contamination in water, algal cells, macrophytes, shrimps and fish was found in Lake Taihu. The ubiquitous presence of MCs in water, algal cells and biota was found in 100% of samples. MC accumulation was in the order of primary producer > tertiary consumer > secondary consumer > primary consumer. The highest levels of MCs in macrophytes, shrimps and fish tissue were found in Potamogeton maackianus, Exopalaemon modestus, and Hyporhamphus intermedius, respectively. The MCs level in shrimps and the tissues of three fish species, Neosalanx tangkahkeii taihuensis, Coilia ectenes and silver carp, was closely linked to their dietary exposure. Ceratophyllum demersum L. was an ideal plant for introduction into lakes to protect against Microcystis blooms and MCs, due to its ability to absorb nutrients, accumulate large amounts of MCs and tolerate these toxins compared to other macrophytes. The average daily intakes (ADIs) of MCs for Exopalaemon modestus and three fish species, Coilia ectenes, Hyporhamphus intermedius and Carassius carassius, were all above the tolerable daily intakes (TDI) set by the World Health Organization (WHO), implying there existed potential threats to human health.

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“…Hydrilla has also been reported as efficient in removing cyanotoxins from water (Nimptsch, Wiegand, & Pflugmacher, 2008) and Romero-Oliva, Contardo-Jara, and Pflugmacher (2015) recommended Hydrilla as a suitable species for phytoremediation. This may be highly relevant to Lake Atitl an and other tropical lakes where cyanobacterial blooms are becoming more frequent and it is a topic deserving of more research (Romero-Oliva et al, 2015).…”

Section: Replacement Of Schoenoplectus By Hydrilla and Consequencesmentioning

confidence: 99%

Regime shift in the littoral ecosystem of volcanic Lake Atitlán in Central America: combined role of stochastic event and invasive plant species

et al. 2018

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Different functional groups of macrophytes vary in their impact on aquatic ecosystem structure and processes. The introduction of new species with different growth form, combined with a stochastic event, may have serious and irreversible consequences on lake functioning. Our goals were to document and explain physical, chemical, metabolic and biotic changes in the littoral zones of a volcanic lake before and following two coinciding events: invasion by a submersed macrophyte, Hydrilla verticillata (Hydrocharitaceae), followed by a rapid increase in the lake water level (>2.5 m). We recorded plant biomass, plant tissue C:N:P stoichiometry, macroinvertebrates, water characteristics data along transects through littoral zones, and measured gas emission in controlled mesocosms and in the lake. The native emergent species, Schoenoplectus californicus (Cyperaceae), was generally not able to survive such a rapid water level increase, and Hydrilla spread and formed dense mats further preventing Schoenoplectus regeneration. The impact of another introduced species, the free‐floating Eichhornia crassipes (Pontederiaceae), was more localised, despite its much longer presence at the lake. Although the three species had comparable standing biomass, the two invader species had lower C:N:P ratios than Schoenoplectus, resulting in faster decomposition rates and indicating potential shifts in nutrient cycling within the ecosystem. The oxygen profile of the water column was altered by the non‐native species in a significantly different manner: in Eichhornia, the saturation concentrations dropped down to 30%–50% of dissolved oxygen, while oxygen supersaturation was recorded in Hydrilla. Both Schoenoplectus and Eichhornia patches exhibited comparable carbon dioxide (CO2) fluxes, sequestering 230 and 300 mg CO2 m−2 hr−1, respectively, during the day and emitting 250 and 200 mg CO2 m−2 hr−1, respectively, during the night. Contrary to these two species, Hydrilla patches sequestered CO2 during the day (34 mg CO2 m−2 hr−1) and night (44 mg CO2 m−2 hr−1). The invasive species maintained a richer community of macroinvertebrates compared to several native species (excluding Schoenoplectus), both in taxa diversity and in numbers of individuals. When the results are considered in the regional context, an increase in nutrient supply could lead to the dominance of free‐floating plants. We discussed management options more broadly considering the negative impacts of introduced species balanced against their beneficial effects, in the context of environmental changes.

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Time dependent uptake, bioaccumulation and biotransformation of cell free crude extract microcystins from Lake Amatitlán, Guatemala by Ceratophyllum demersum, Egeria densa and Hydrilla verticillata

Cited by 28 publications

References 43 publications

Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin

Heavy Metal Accumulation in Common Aquatic Plants in Rivers and Lakes in the Taihu Basin

A Systematic Investigation into the Environmental Fate of Microcystins and The Potential Risk: Study in Lake Taihu

Regime shift in the littoral ecosystem of volcanic Lake Atitlán in Central America: combined role of stochastic event and invasive plant species

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