Results 121 to 130 of about 863 (156)
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Uptake and elimination of butyl- and phenyltins by Ceratophyllum demersum L.
Chemosphere, 2020The widespread occurrence and distribution of organotin compounds (OTCs) in both marine and freshwater ecosystems has aroused considerable concerns in most countries worldwide. In this work, individual kinetics of the elimination of three butyltins and three phenyltins from C. demersum L.
Xiaoyu, Xiao +5 more
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Photosynthesis in relation to growth and dormancy in Ceratophyllum demersum
Aquatic Botany, 1979Abstract Growth and photosynthetic activity in the different development stages of Ceratophyllum demersum L. were measured with particular reference to the physiological maxima of these processes and the factors influencing the carbon fixation rates.
Best, E.P.H., Meulemans, J.T.
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Floral development and phyllotactic variation in Ceratophyllum demersum (Ceratophyllaceae)
American Journal of Botany, 2003The floral development of staminate and pistillate flowers of Ceratophyllum demersum was observed, with particular focus on the phyllotactic variation in staminate flowers, using scanning electronic microscopy (SEM). We discerned patterns of development of some important new morphological features, e.g., the difference and discontinuity between the ...
Akitoshi, Iwamoto +2 more
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Heavy metal adsorption properties of a submerged aquatic plant ( Ceratophyllum demersum )
Bioresource Technology, 2004Heavy metals can be adsorbed by living or non-living biomass. Submerged aquatic plants can be used for the removal of heavy metals. In this paper, lead, zinc, and copper adsorption properties of Ceratophyllum demersum (Coontail or hornwort) were investigated and results were compared with other aquatic submerged plants.
Keskinkan O. +3 more
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Photosynthetic characteristics of the submerged macrophyte Ceratophyllum demersum
Physiologia Plantarum, 1986The photosynthetic and growth characteristics of Ceratophyllum demersum L. were investigated under laboratory conditions which simulated those encountered in the plants' normal environment. The carbon fixation rate of C. demersum measured with 14C at light and carbon saturation at pH 8.0 was 4.48 mg C (g ash‐free dry weight)−1 h−1. It was lower at pH 6.
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Ceratophyllum demersum – phosphorus interactions in nutrient enriched aquaria
Hydrobiologia, 2003High macrophyte density in shallow lakes is often associated with clear water, especially when the non-rooted, submerged angiosperm Ceratophyllum demersum is dominant. Lack of true roots and high surface area:volume ratio suggest that nutrient uptake from the water column by C. demersum may be high.
Paola Lombardo, G. Dennis Cooke
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SAR Journal of Anatomy and Physiology
Aquatic macrophytes play a critical role in the removal and sequestration of heavy metals from contaminated freshwater systems through bioaccumulation and phytoremediation processes. This study examines the capacity of two submerged aquatic plants, Ceratophyllum submersum and Ceratophyllum demersum, to accumulate nickel (Ni) and cobalt (Co) from ...
Roaa Basim Shnain, Anwer Abbas Fadaam
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Aquatic macrophytes play a critical role in the removal and sequestration of heavy metals from contaminated freshwater systems through bioaccumulation and phytoremediation processes. This study examines the capacity of two submerged aquatic plants, Ceratophyllum submersum and Ceratophyllum demersum, to accumulate nickel (Ni) and cobalt (Co) from ...
Roaa Basim Shnain, Anwer Abbas Fadaam
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Charophyte occurrence in Ceratophyllum demersum stands
Hydrobiologia, 2014The hornwort Ceratophyllum demersum is a loosely attached to the bottom or free-floating vascular macrophyte, which builds dense stands in nutrient-rich waters. The hornwort stands are usually monospecific communities with a negligible contribution of other aquatic plants.
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Competitive Bioaccumulation by Ceratophyllum demersum L.
2022Amir Parnian +3 more
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Structural and metabolic responses of Ceratophyllum demersum to eutrophic conditions
2013Eutrophication in water bodies affects the growth of aquatic plants. In this study, we conducted static experiments to better understand the structural and metabolic responses of Ceratophyllum demersum under eutrophication conditions. The anatomical structure, nitrogen (N) and phosphorous (P) levels in tissue, malondiadehyde (MDA), and activities of ...
Hanfeng, Xiong +2 more
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