Field and experimental evaluation of Enteromorpha sp. As a quali-quantitative monitoring organism for copper and mercury in estuaries

Seeliger, U.; Cordazzo, César Vieira

doi:10.1016/0143-1471(82)90164-7

Cited by 23 publications

(12 citation statements)

References 19 publications

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“…This relationship is specific for each metal in each algal species, so that plants in identical environmental conditions exhibit a marked natural variability (Foster 1976). The CF is the ratio between the two variables and should be approximately constant in order to permit comparison of data along environmental and seasonal gradients and between geographically distant areas (Seelinger and Cordazzo 1982). However, it is not possible to obtain quantitative evaluation of metal concentrations at sampling time, because algae offer a time-integrated picture of the concentrations to which they have been exposed during their life-span (Phillips and Segar 1986).…”

Section: Analysis O F Concentration Factor (Cf)mentioning

confidence: 99%

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Favero

Cattalini

Bertaggia

et al. 1996

Arch. Environ. Contam. Toxicol.

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Ulva rigida (C. Agardht) was collected from the Palude della Rosa (lagoon of Venice), a particular area characterized by a salinity gradient, from December 1991 to June 1993. Metal contents (Al, Mn, Fe, Cu, Zn, Cr, Co, Ni, Cd, and Pb) were determined by atomic absorption spectrophotometry and statistically analysed for differences between months and sampling sites. The mean seasonal variability is very significant (p < 0.001) for all studied metals. Seasonal trends are comparable for groups of metals according to possible functional similarities. A significant positive correlation was calculated for the pairs Fe-Al and Fe-Pb. Mechanisms regulating metal uptake are discussed, particularly the role of Fe and its linear relationship with Al. Metal concentrations in relation to salinity also were studied. Larger amounts of Fe, Zn, and Cd accumulated in correspondence of lower salinity, may be owing to both higher metal activity and burden of bioavailable metals in freshwater flowing into the Palude. Calculation of concentration factor (CF) indicates that U. rigida specifically accumulates Fe. CF linearly correlates with dissolved metal concentrations, suggesting that U. rigida is a good bioindicator of metal bioavailability, although seasonal active accumulation occurs in some cases (Mn). Metal concentrations determined in this macroalga support the conclusion that the studied area is rich in bioavailable Fe and poor in toxic metals. In any case, a great affinity for Al in U. rigida may be proposed.

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Section: Analysis O F Concentration Factor (Cf)mentioning

confidence: 99%

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Favero

Cattalini

Bertaggia

et al. 1996

Arch. Environ. Contam. Toxicol.

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“…and Fucus spp. are able to grow in copper‐contaminated seawater (Seeliger & Cordazzo 1982 ; Bryan & Gibbs 1983; Correa et al . 1996; Marsden & DeWreede 2000).…”

Section: Introductionmentioning

confidence: 99%

Cellular responses of developing Fucus serratus embryos exposed to elevated concentrations of Cu²⁺

Nielsen

Brown

Brownlee

2003

Plant Cell & Environment

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“…Furthermore, the alga cultivated in vitro with 2.5, 5, 7.5, and 10 µM for 0 to 12 days showed a linear accumulation of intracellular copper with increasing concentrations of the metal reaching a maximal accumulation of 620 µg g −1 of dry weight (DW), at day 12 with 10 µM copper [25]. In addition, U. compressa extrudes copper ions to the extracellular medium reaching a maximal concentration at intracellular level of around 900 µg g −1 of DW [24]. In contrast, the green alga Ulva fasciata cultivated with 0.3 µM copper for 14 days reached an intracellular level of copper of 2000 µg g −1 of DW suggesting that this alga may not extrude copper ions to the culture medium [26].…”

Section: Introductionmentioning

confidence: 99%

“…The green macroalga Ulva compressa is the dominant species in copper-polluted coastal areas of northern Chile and in other parts of the world [23,24]. It has been shown that the alga collected in the field accumulate copper in its tissue [23].…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Copper- and Zinc- Binding Metallothioneins from the Marine Alga Ulva compressa (Chlorophyta)

Zúñiga

Laporte

González

et al. 2019

IJMS

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In this work, transcripts encoding three metallothioneins from Ulva compressa (UcMTs) were amplified: The 5′and 3′ UTRs by RACE-PCR, and the open reading frames (ORFs) by PCR. Transcripts encoding UcMT1.1 (Crassostrea-like), UcMT2 (Mytilus-like), and UcMT3 (Dreissena-like) showed a 5′UTR of 61, 71, and 65 nucleotides and a 3′UTR of 418, 235, and 193 nucleotides, respectively. UcMT1.1 ORF encodes a protein of 81 amino acids (MW 8.2 KDa) with 25 cysteines (29.4%), arranged as three motifs CC and nine motifs CXC; UcMT2 ORF encode a protein of 90 amino acids (9.05 kDa) with 27 cysteines (30%), arranged as three motifs CC, nine motifs CXC, and one motif CXXC; UcMT3 encode a protein of 139 amino acids (13.4 kDa) with 34 cysteines (24%), arranged as seven motifs CC and seven motifs CXC. UcMT1 and UcMT2 were more similar among each other, showing 60% similarity in amino acids; UcMT3 showed only 31% similarity with UcMT1 and UcMT2. In addition, UcMTs displayed structural similarity with MTs of marine invertebrates MTs and the terrestrial invertebrate Caenorhabtidis elegans MTs, but not with MTs from red or brown macroalgae. The ORFs fused with GST were expressed in bacteria allowing copper accumulation, mainly in MT1 and MT2, and zinc, in the case of the three MTs. Thus, the three MTs allowed copper and zinc accumulation in vivo. UcMTs may play a role in copper and zinc accumulation in U. compressa.

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Field and experimental evaluation of Enteromorpha sp. As a quali-quantitative monitoring organism for copper and mercury in estuaries

Cited by 23 publications

References 19 publications

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Cellular responses of developing Fucus serratus embryos exposed to elevated concentrations of Cu²⁺

Isolation and Characterization of Copper- and Zinc- Binding Metallothioneins from the Marine Alga Ulva compressa (Chlorophyta)

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Field and experimental evaluation of Enteromorpha sp. As a quali-quantitative monitoring organism for copper and mercury in estuaries

Cited by 23 publications

References 19 publications

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Metal accumulation in a biological indicator (Ulva rigida) from the lagoon of Venice (Italy)

Cellular responses of developing Fucus serratus embryos exposed to elevated concentrations of Cu2+

Isolation and Characterization of Copper- and Zinc- Binding Metallothioneins from the Marine Alga Ulva compressa (Chlorophyta)

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Cellular responses of developing Fucus serratus embryos exposed to elevated concentrations of Cu²⁺