Populations of Myriophyllum alterniflorum L. as bioindicators of pollution in acidic to neutral rivers in the Limousin region

Chatenet, Philippe; Froissard, Didier; Cook-Moreau, Jeanne; Hourdin, Philippe; Ghestem, Axel; Botineau, Michel; Haury, Jacques

doi:10.1007/s10750-006-0162-8

Cited by 9 publications

(4 citation statements)

References 9 publications

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“…There are no direct measurements of nitrate and ammonium uptake by M. alterniflorum. However, Chatenet et al (2006) found a strong inhibiting effect of aquatic ammonium on nitrate reductase activity, suggesting that there is at least a preference for ammonium uptake from the water column.…”

Section: Introductionmentioning

confidence: 95%

Competition between isoetids and invading elodeids at different concentrations of aquatic carbon dioxide

et al. 2010

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1. The growth of submerged macrophytes in softwater lakes is often assumed to be carbon limited. Isoetid species are well adapted to grow at low carbon availability and therefore commonly dominate the submerged macrophyte vegetation in softwater lakes. In many such lakes, however, large-scale invasions of fast-growing elodeid species, replacing the isoetid vegetation, have been observed. 2. In a laboratory experiment, we tested how rising aquatic carbon availability, in interaction with different densities of the isoetid Littorella uniflora, affected the growth (and thereby the potential invasion success) of the elodeid Myriophyllum alterniflorum. For this purpose, the growth of M. alterniflorum was determined at a combination of three concentrations of dissolved CO 2 (15, 90, 200 lmol L )1 ) and three densities of L. uniflora (0, 553, 1775 plants m )2 ). 3. At an ambient CO 2 of 15 lmol L )1 , M. alterniflorum could not sustain itself, whereas at raised CO 2 concentrations, growth became positive and increased with higher CO 2 availability. 4. The presence of L. uniflora, independent of its density, reduced the growth of M. alterniflorum by 50%. Whether this is related to nutrient availability or other factors is not clear. 5. Despite the growth reduction of M. alterniflorum by L. uniflora, at CO 2 ‡90 lmol L )1 , L. uniflora was still overgrown by M. alterniflorum. This may imply that, in field situations, M. alterniflorum can invade softwater systems with relatively high CO 2 availability, even in the presence of dense stands of L. uniflora.

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Section: Introductionmentioning

confidence: 95%

Competition between isoetids and invading elodeids at different concentrations of aquatic carbon dioxide

et al. 2010

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“…The common alternate watermilfoil Myriophyllum alterniflorum DC is used since the 2000s as a bioindicator for heavy metal pollution (Ngayila et al, 2009) and for trophic conditions (Chatenet et al, 2006). M. alterniflorum was chosen as sentinel organism, as it is an aquatic macrophyte of ecological importance within the aquatic ecosystem, providing shelter and habitat for fish eggs and other aquatic animals like native crawfishes.…”

Section: Introductionmentioning

confidence: 99%

Differential responses of Myriophyllum alterniflorum DC (Haloragaceae) organs to copper: physiological and developmental approaches

et al. 2011

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International audienceCopper is an essential element for the function of metabolic pathways in many living organisms like photosynthesis in plants. But, for the last decades, anthropogenic sources and release of Cu lead to environmental pollution particularly in aquatic ecosystems. The aquatic plant, Myriophyllum alterniflorum, known as a bioindicator of metal pollution, could be used as biomonitor. The aim of this study is to evaluate biomarkers responses of watermilfoil during Cu pollution at high environmental levels (100 μg l−1 CuSO4) in controlled conditions. Morphological and anatomical features like a new double endodermis (DE) layer were evidenced in response to Cu treatment. Moreover, physiological parameters like pigments contents, osmotic potential and proline content present a differential response to Cu stress in young and old leaves of watermilfoil. Finally, despite a rapid and strong phytoaccumulation of Cu, only young leaves are slightly affected in their cell membrane integrity as indicated by MDA content. In comparison with the Cu effect on other aquatic macrophytes, M. alterniflorum develops particular protection mechanisms like the ROS scavenging using proline rather than carotenoids, the reduction of water loss with the DE and the heavy metal elimination through senescence to protect preferentially the photosynthetic components of the young leaves and the main-stem elongation. Due to its Cu sensitivity, M. alterniflorum appears as important in the field of environmental studies using plant biomarkers

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“…The number of studies exploring the use of macrophytes to investigate lowland water quality has been increasing (Caffrey 1986, Husák et Relationships between epipelic diatoms, aquatic macrophytes, and water quality| 75 www.oandhs.org al. 1989, Thiébaut and Muller 1999, Kargıoğlu 2001, Triest 2006, Daniel et al 2006, Chatenet et al 2006, Serteser et al 2008. Since these assessments are based on the difference between actual macrophyte vegetation and reference vegetation, it is extremely important to correctly define a reference macrophyte community, which depends on river type.…”

Section: Introductionmentioning

confidence: 99%

Relationships between epipelic diatoms, aquatic macrophytes, and water quality in Akarçay Stream, Afyonkarahisar, Turkey

Kargıoğlu

Serteser

Kivrak

et al. 2011

Oceanological and Hydrobiological Studies

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The Akarçay is the most important stream in the Afyonkarahisar region in central Turkey. In this study, the relationships between epipelic diatoms, macrophytes, and the water quality of Akarçay Stream are presented. According to Canonical Correspondence Analysis (CCA), BOD5, COD, TDS, NH4-N, NO2-N, and PO4-P had the most significant effects on the diatom and macrophyte community structures of the stream. According to CCA and Correspondence Analysis (CA), dominant diatom species and macrophytes constituted two groups, eutrophic and polluted. While eutraphentic taxa were abundant among upstream diatoms, hypereutraphentic taxa were found downstream in the Akarçay. The diatom assemblages in the sites upstream were generally characterized by an abundance of β-mesosaprobous and α-mesosaprobous species, while the diatom assemblages downstream had a very high abundance of

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Populations of Myriophyllum alterniflorum L. as bioindicators of pollution in acidic to neutral rivers in the Limousin region

Cited by 9 publications

References 9 publications

Competition between isoetids and invading elodeids at different concentrations of aquatic carbon dioxide

Competition between isoetids and invading elodeids at different concentrations of aquatic carbon dioxide

Differential responses of Myriophyllum alterniflorum DC (Haloragaceae) organs to copper: physiological and developmental approaches

Relationships between epipelic diatoms, aquatic macrophytes, and water quality in Akarçay Stream, Afyonkarahisar, Turkey

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