Macrophyte — sediment relationships in Chautauqua Lake

Nicholson, Stuart; Levey, Raymond A.; Clute, P. R.

doi:10.1080/03680770.1974.11896374

Cited by 3 publications

(3 citation statements)

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“…Although previous studies have shown that the seedling growth and plant distribution of Potamogeton species can tolerant a wide range of sediment grain sizes (Nicholson et al 1975, Ailstock et al 2010, our study was limited by mixing different types of substrata to create 2 different nutrient levels. We did not perform a comprehensive examination of how other abiotic factors (e.g.…”

Section: Discussionmentioning

confidence: 99%

“…to support the growth of new roots or shoots for mineral uptake from water or sediment, Adamec 2010). Therefore, it is possible that higher nutrient levels in turions from nutrient-rich sediment facilitate survival and establishment during the dispersal process.Although previous studies have shown that the seedling growth and plant distribution of Potamogeton species can tolerant a wide range of sediment grain sizes (Nicholson et al 1975, Ailstock et al 2010, our study was limited by mixing different types of substrata to create 2 different nutrient levels. We did not perform a comprehensive examination of how other abiotic factors (e.g.…”

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confidence: 99%

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Turion production and nutrient reserves in Potamogeton crispus are influenced by sediment nutrient level

Xie¹,

Yu²

2011

Aquat. Biol.

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The influence of sediment nutrient content on asexual propagule production in plants is poorly understood, especially in submersed macrophytes. To improve the understanding of turion (an aboveground asexual propagule) production, Potamogeton crispus L. was planted in 2 experimental conditions that differed in their levels of sediment nutrients. After 10 wk of growth, sediment nutrient level had significantly impacted the plants' vegetative and reproductive traits. Most vegetative trait measures of P. crispus (e.g. leaf mass fraction and stem mass fraction) were higher when plants were grown in nutrient-rich sediment compared with plants grown in nutrient-poor sediment. Reproductive trait measures (e.g. turion mass fraction and individual turion biomass) were higher in plants grown in nutrient-poor sediment compared with plants grown in nutrient-rich sediment. Plants grown in nutrient-rich sediment produced a larger number of small turions (< 50 mg), in which more nutrients (total nitrogen and total phosphorus) were stored; plants grown in nutrient-poor sediment produced more large turions (>100 mg) and stored more total nonstructural carbohydrate (the major proportion of which was starch) in them. Path analysis revealed that total plant biomass (strong positive effect), leaf and stem biomass (weak negative effects) had direct effects on total turion biomass, which consequently affected turion size and number. Moreover, ramet number and mean shoot height also had weak but direct effects (both negative effects) on turion size and number. These results demonstrate that sediment nutrient content mediates plant vegetative traits and can subsequently affect turion production and reserves in P. crispus. KEY WORDS: Asexual reproduction · Potamogeton crispus · Reserves · Sediment nutrients · TurionResale or republication not permitted without written consent of the publisher Aquat Biol 14: 21-28, 2011 strates (Hangelbroek et al. 2003). However, much of the research dedicated to understanding the relationship between sediment nutrients and reproductive output has focused on sexual reproduction. Although the influence of sediment nutrients on clonal plants has begun to receive attention, we do not have a thorough understanding of asexual propagation, particularly for plants in aquatic habitats (Slade & Hutchings 1987, Dong et al. 1997, Hangelbroek et al. 2003, Xiao et al. 2006. Asexual reproduction is generally assumed to be more common in aquatic habitats than in terrestrial habitats because of unfavorable ecological conditions for sexual reproduction, e.g. decreased pollination success and low reproductive success (for a review, see Santamaría 2002). Indeed, many asexual propagules of aquatic macrophytes can self-initiate abscission -examples include auto-fragments of Myriophyllum spicatum L. (Smith et al. 2002) For a given amount of resources that a plant can allocate to propagation, there is a compromise between propagule size and number (i.e. the size-number trade-off, Smith & Fretwell 1974). Previous st...

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Section: Discussionmentioning

confidence: 99%

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confidence: 99%

Turion production and nutrient reserves in Potamogeton crispus are influenced by sediment nutrient level

Xie¹,

Yu²

2011

Aquat. Biol.

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“…However, there is now considerable evidence that several important species of macrophytes can absorb substantial quantities of nutrients from the substrate and transport them to the shoot portion of the plant (see below). Several fairly recent reports clearly show that substrate type has an effect on the growth of a number of species (Moyle 1945, Mulligan and Baranowski 1969, Denny 1972, Nicholson et a!. 1975.…”

Section: Introductionmentioning

confidence: 99%

Growth of Myriophyllum: Sediment or Lake Water as the Source of Nitrogen and Phosphorus

Best¹,

Mantai²

1978

Ecology

107

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A series of laboratory culture experiments was designed to investigate uptake of phosphorus and nitrogen by roots and shoots of Myriophyllum spicatum in a number of lake water/substrate and nutrient medium/substrate environments. The plants were compared with respect to biomass, physical dimensions, and total P and N in the plant tissues. It appears that Myriophyllum spicatum can meet its requirements for N by root uptake from the sediment as well as by absorption from the water itself through stem and leaf tissue. It was also seen that Myriophyllum can absorb considerable quantities of P from the sediment via the root system and transport it to the shoot regions of the plant. Growth data suggest that N was growth—limiting for sand—grown plants in nitrate—deficient media, even though tissue N was high. Growth was not decreased in low—phosphate media, suggesting that phosphate—limiting conditions were probably not attained in these experiments. A synergistic relationship between P and N was noted; P in the water clearly affected the ability of Myriophyllum plants to take up nitrate from the water. These data suggest that the limiting concentration of nitrate for Myriophyllum might vary considerably depending in part on the phosphate concentration.

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A case study in hydrarch zonation

Nicholson

Aroyo

1975

Plant Ecol

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Macrophyte — sediment relationships in Chautauqua Lake

Cited by 3 publications

References 8 publications

Turion production and nutrient reserves in Potamogeton crispus are influenced by sediment nutrient level

Turion production and nutrient reserves in Potamogeton crispus are influenced by sediment nutrient level

Growth of Myriophyllum: Sediment or Lake Water as the Source of Nitrogen and Phosphorus

A case study in hydrarch zonation

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