The effect of anaerobic sediment on the growth of Potamogeton pectinatus L.: the role of organic matter, sulphide and ferrous iron

Wijck, Carla van; Groot, Cornelis-Jan de; Grillas, Patrick

doi:10.1016/0304-3770(92)90079-x

Cited by 62 publications

(29 citation statements)

References 29 publications

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“…A similar phenomenon was observed in a study with Hydrilla verticillata as the experimental subject (unpublished data). Van Wijck et al (1992) also reported that the biomass production of P. pectinatus was found to increase with increasing sediment organic matter content up to 26 mg C g -1 , but decrease on some sediments with higher organic matter contents. Dixon et al (2006) suggested that the stimulating effect of anoxia on stem elongation and biomass production in P. pectinatus was an essential mechanism of adaptations to oxygen deprivation that appears to support an escape from the anoxic environment surrounding the tubers.…”

Section: Discussionmentioning

confidence: 85%

“…5), but we have not observed increase in elongation and shoot biomass of P. crispus in anoxia treatments. The increase in root biomass of P. crispus production was probably owing to increased availability of nitrogen which is released during the mineralization of organic matter (Van Wijck et al, 1992). a b Fig.…”

Section: Discussionmentioning

confidence: 97%

“…Organic matter decomposition in the sediment consumes a great deal of oxygen, resulting in sediment anoxia. When exposed to the anoxic conditions, the plants must not only adapt to root anaerobiosis, but also tolerate the chemical and microbial production of phytotoxins in the sediments, such as sulfide, methane, and acetic acid (Van Wijck et al, 1992;Terrados et al, 1999). Submerged macrophytes exposed to anoxic sediments have morphological and physiological means to tolerate anoxic conditions (Pedersen et al, 2004;Borum et al, 2005).…”

Section: Introductionmentioning

confidence: 99%

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Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Cheng

Liang

et al. 2009

Hydrobiologia

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Potamogeton crispus is a cosmopolitan aquatic species and is widely used as a pioneer species for vegetation restoration of eutrophic lakes. However, many restoration projects applying P. crispus turions have not been successful. Earlier studies focused on effects of light and temperature on turion germination. The purpose of this study was to determine whether sediment anoxia and light interactively affected the turion germination and early growth of P. crispus. Anoxic conditions in the experiment were produced by adding sucrose to the sediment. The germination rate of the turions was 68-73% lower in the highly anoxic condition treatment than in the control. Medium light intensity (10% of natural light at the water surface) was more favorable for germination under slightly anoxic conditions than either low or high light intensity. The growth of newly-formed sprouts was also significantly inhibited by sediment anoxia. Photosynthesis and shoot biomass were reduced under sediment anoxia, whereas total chlorophyll content, root biomass, and soluble protein content were highest in the low anoxic condition treatment. Medium light improved net photosynthesis and biomass production of the sprouts. We conclude that turion germination and sprout growth can be significantly inhibited by sediment anoxia. Medium light intensity may alleviate this inhibition by anoxia, but light has little effect when sediment anoxia is severe. For the purposes of vegetation restoration, more attention should be paid to the role of sediment anoxia, and it is necessary to improve sediment and light conditions for turion germination and early growth of P. crispus in eutrophic lakes. These results will contribute to a more complete understanding of turion germination dynamics of P. crispus and will be useful for future restoration programs.

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Section: Discussionmentioning

confidence: 85%

Section: Discussionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Cheng

Liang

et al. 2009

Hydrobiologia

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“…Moreover, the permanent oxidized rhizosphere is probably of vital importance for the plant in detoxifying reduced phytotoxins (e.g. sulphide) in the near-root sediment (Penhale & Wetzel 1983, van Wijck et al 1992, Carlson et al 1994, Goodman et al 1995.…”

mentioning

confidence: 99%

Oxygen dynamics in the rhizosphere of Cymodocea rotundata

Pedersen¹,

Borum²,

Duarte³

et al. 1998

Mar. Ecol. Prog. Ser.

186

154

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The spatial distribution of oxygen and the dynamics of the oxic mlcrozone around roots of Cymodocea rotundata were studied using oxygen microelectrodes under constant light conditions and during light-dark transitions. Under daylight steady state conditions, oxygen was present at concentrations up to 75 % of air saturation at the root surface, and the oxic microzone around the roots was 80 pm thick. Steady state oxygen concentrations were reached within 1.5 h after light-dark shifts. Under darkness, free oxygen, at about 20% of air saturation, was still present on the root surface at steady state, but the thickness of the oxic microzone shrank to 50 pm. The oxygen present in the rhizosphere during darkness was supplied from the water column to roots via, primarily, gas-phase diffusion in leaves and rhizomes. The oxic microzone around roots comprised about 0.5% of the total volume of the seagrass rhlzosphere, and the root-mediated oxygen supply was estimated to be insignificant for the whole sediment oxygen budget contributing about 1 % of total oxygen consumption only. However, the continuous oxygen supply may ensure a persistent oxic environment for belowground tissues of C. rotundata and, hence, protect the plant from reduced phytotoxins.

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“…Emissions of this gas are important for the global recycling of sulphur through the atmosphere. Sulphides also precipitate readily with metals such as Fe or copper (Cu), which reduces their toxicity (Connell and Patrick 1969;Van Wijck et al 1992).…”

Section: Manganese Reductionmentioning

confidence: 99%

Wetland Biogeochemical Cycles and their Interactions

Verhoeven

2009

The Wetlands Handbook

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The effect of anaerobic sediment on the growth of Potamogeton pectinatus L.: the role of organic matter, sulphide and ferrous iron

Cited by 62 publications

References 29 publications

Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Effects of sediment anoxia and light on turion germination and early growth of Potamogeton crispus

Oxygen dynamics in the rhizosphere of Cymodocea rotundata

Wetland Biogeochemical Cycles and their Interactions

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