Sediment-based nutrition of submersed macrophytes

Barko, John W.; Smart, R. M.

doi:10.1016/0304-3770(81)90032-2

Cited by 198 publications

(89 citation statements)

References 32 publications

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“…For instance, resuspension and nutrient release from sediment could alter light attenuation coefficient and stoichiometry of N and P in water column. Plant tissue P had significant positive relationship with sediment P, while it had no significant relationship with TP in water column, implying that submerged macrophyte uptake P was generally from sediment as mentioned in the BIntroduction^ (Barko and Smart 1981;Best and Mantai 1978;Carignan and Kalff 1980). However, this cannot be regarded as direct evidence that dominance of nutrient uptake cannot be mediated by leaves, especially in oligotrophic streams.…”

Section: Sources Of Variability In Aquatic Plant Tissue Stoichiometrymentioning

confidence: 90%

“…Previous studies have addressed the relative importance of roots and leaves in nutrient uptake of rooted submerged macrophytes (Carignan and Kalff 1980;Rattray et al 1991;Robach et al 1995). Given that the concentrations of nutrients in sediments are usually higher than that of in water column, it is generally accepted that sediments are the major source of N and P for submerged macrophytes (Barko and Smart 1981;Best and Mantai 1978;Bristow and Whitcombe 1971;Carignan and Kalff 1980;Smith and Adams 1986). …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effects of taxonomy, sediment, and water column on C:N:P stoichiometry of submerged macrophytes in Yangtze floodplain shallow lakes, China

Xie

et al. 2016

Environ Sci Pollut Res

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Carbon (C), nitrogen (N) and phosphorus (P) are the three most important essential elements limiting growth of primary producers. Submerged macrophytes generally absorb nutrients from sediments by root uptake. However, the C:N:P stoichiometric signatures of plant tissue are affected by many additional factors such as taxonomy, nutrient availability, and light availability. We first revealed the relative importance of taxonomy, sediment, and water column on plant C:N:P stoichiometry using variance partitioning based on partial redundancy analyses. Results showed that taxonomy was the most important factor in determining C:N:P stoichiometry, then the water column and finally the sediment. In this study, a significant positive relationship was found between community C concentration and macrophyte community biomass, indicating that the local low C availability in macrophytes probably was the main reason why submerged macrophytes declined in Yangtze floodplain shallow lakes. Based on our study, it is suggested that submerged macrophytes in Yangtze floodplain shallow lakes are primarily limited by low light levels rather than nutrient availability.

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Section: Sources Of Variability In Aquatic Plant Tissue Stoichiometrymentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Effects of taxonomy, sediment, and water column on C:N:P stoichiometry of submerged macrophytes in Yangtze floodplain shallow lakes, China

Xie

et al. 2016

Environ Sci Pollut Res

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“…Polyphenolic allelochemicals present in Myriophyllum spicatum interfere with alkaline phosphatase, an exoenzyme used by many algae and cyanobacteria to overcome inorganic phosphorus limitation (Gross et al, 1996;Gross, 1999). The macrophyte obtains phosphorus predominantly through the roots (Best and Mantai, 1978;Carignan and Kalff, 1980;Barko and Smart, 1981), but phytoplankton and epiphytes (Carignan and Kalff, 1982) rely on phosphorus in the water. Thus, the inhibition of alkaline phosphatase provides a competitive advantage for this submersed macrophyte.…”

Section: A Nutrient Stressmentioning

confidence: 99%

Allelopathy of Aquatic Autotrophs

Gross¹

2003

Critical Reviews in Plant Sciences

542

355

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Allelopathy in aquatic environments may provide a competitive advantage to angiosperms, algae, or cyanobacteria in their interaction with other primary producers. Allelopathy can influence the competition between different photoautotrophs for resources and change the succession of species, for exarnple, in phytoplankton cornmunities. Field evidence and laboratory studies indicate that allelopathy occurs in all aquatic habitats (marine and freshwater), and that ail prirnary producing organisms (cyanobacteria, micro-and macroalgae as well as angiospenns) are capable of producing and releasing allelopathically active compounds. Although allelopathy also includes positive (stimulating) interactions, the majority of studies describe the inhibitory activity of ailelopathicaily active compounds. Different mechanisms operate depending on whether allelopathy takes place in the Open water (pelagic zone) or is Substrate associated (benthic habitats). Allelopathical interactions are especiaily common in fully aquatic species, such as submersed macrophytes or benthic algae and cyanobacteria. The prevention of shading by epiphytic and planktonic primary producers and the competition for space may be the ultimate cause for allelopathical interactions. Aquatic ailelochemicals often target multiple physiological processes. The inhibition of photosynthesis of competing primary producers seems tobe a frequent mode of action. Multiple biotic and abiotic factors determine the strength of allelopathic interactions. Bacteria associated with the donor or target organism can metabolize excreted aiielochemicals. Frequently, the impact of surplus or limiting nutrients has been shown to affect the overail production of allelochemicals and their effect on target species. Similarities and differences of ailelopathic interactions in marine and freshwater habitats as well as between the different types of producing organisms are discussed.

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“…Alanen (1998) assumed that nutrients in the water were less important to spiny naiad growth than nutrients in the sediment because the roots of this plant comprise an unusually large proportion (30 percent) of total plant weight (Waisel and Agami, 1983). Although rooted, submerged plants can take up DO, carbon dioxide, and micronutrients from the water column, the majority of nutrients are acquired from the sediment (Barko and Smart, 1981;Cronk and Fennessy, 2001). Ammonium nitrogen and nitrate nitrogen concentrations in the sediments produced by decomposer microbes from senesced plant litter may be most important to aquatic plant productivity, as microbes decompose the plant litter annually (Vymazal, 1995).…”

Section: Sediment Chemistrymentioning

confidence: 99%

Sediment-based nutrition of submersed macrophytes

Cited by 198 publications

References 32 publications

Effects of taxonomy, sediment, and water column on C:N:P stoichiometry of submerged macrophytes in Yangtze floodplain shallow lakes, China

Effects of taxonomy, sediment, and water column on C:N:P stoichiometry of submerged macrophytes in Yangtze floodplain shallow lakes, China

Allelopathy of Aquatic Autotrophs

Assessment of ecosystem response to a temporary water level drawdown and subsequent refilling at Topock Marsh, Arizona—July 2011–October 2014

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