lemna minor/carbohydrate

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General characteristics of normal and stress-enhanced protein degradation in Lemna minor (duckweed).

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The general features of protein degradation in Lemna minor were studied by using a double-isotope technique. In common with several animal systems, there are correlations between the relative rate of protein degradation on the one hand and molecular weight, charge and carbohydrate content on the

Gene coexpression analysis reveals dose-dependent and type-specific networks responding to ionizing radiation in the aquatic model plant Lemna minor using public data.

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Ionizing radiations (IRs) are widespread damaging stresses to plant growth and development. However, the regulatory networks underlying the mechanisms of responses to IRs remains poorly understood. Here, a set of publicly available transcriptomic data (conducted by Van Hoeck et al. 2015a), in

Effects of nickel on the chloroplasts of the duckweeds Spirodela polyrhiza and Lemna minor and their possible use in biomonitoring and phytoremediation.

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Toxic effects of Ni(2+) on the chloroplasts of the two duckweed species Spirodela polyrhiza, clone SJ and Lemna minor, clone St were investigated according to the ISO 20079 protocol. Ni(2+) induced a transition from chloroplasts to chloro-amyloplasts and amylo-chloroplasts, but not to gerontoplasts,

[A seasonal rhythm of growth in Lemna minor L].

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Lemna minor cultured in continuous light at constant temperature exhibits a seasonal rhythm in the rate of dry matter production with a maximum in summer and a minimum in winter. This confirms the observations of PIRSON and GöLLNER in 1953. Both the protein content and the protein/carbohydrate ratio

Cyto-histological and morpho-physiological responses of common duckweed (Lemna minor L.) to chromium.

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Along with cadmium, lead, mercury and other heavy metals, chromium is an important environmental pollutant, mainly concentrated in areas of intense anthropogenic pressure. The effect of potassium dichromate on Lemna minor populations was tested using the growth inhibition test. Cyto-histological and

Chemical characterisation and analysis of the cell wall polysaccharides of duckweed (Lemna minor).

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Duckweed is potentially an ideal biofuel feedstock due to its high proportion of cellulose and starch and low lignin content. However, there is little detailed information on the composition and structure of duckweed cell walls relevant to optimising the conversion of duckweed biomass to ethanol and

Biochemical alterations in duckweed and algae induced by carrier solvents: Selection of an appropriate solvent in toxicity testing.

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Carrier solvents are often used in aquatic toxicity testing for test chemicals with hydrophobic properties. However, the knowledge of solvent effects on test organisms remains limited. The present study aimed to determine the biochemical effects of the 4 common solvents methanol, ethanol, acetone,

Fourier-transform infrared spectroscopy as a novel approach to providing effect-based endpoints in duckweed toxicity testing.

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Traditional duckweed toxicity tests only measure plant growth inhibition as an endpoint, with limited effects-based data. The present study aimed to investigate whether Fourier-transform infrared (FTIR) spectroscopy could enhance the duckweed (Lemna minor L.) toxicity test. Four chemicals (Cu, Cd,

The Cryoprotectant Effect of Polysaccharides from Plants and Microalgae on Human White Blood Cells.

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The use of carbohydrates as cryoprotectants is increasing. In this study the effects of incorporating polysaccharides extracted from plants and microalgae originating in northern Russia, into cryoprotectant solutions used to preserve human white blood cells were investigated. Cells in the presence

[Adhesion of Bacillus subtilis on the surface of pectin-calcium gel].

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Pectin-calcium gels obtained based on pectins of callus cultures are able to adhere to the surface of cells of Gram-positive bacteria Bacillus subtilis to various degrees and this is thanks to the structural features of pectin. Rapid adhesion of the cells to gels obtained from the pectin of

[Inhibition of neutrophil adhesion by pectic galacturonans].

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The inhibition of the adhesion of neutrophils to fibronectin by the fragments of the main galacturonan chain of the following pectins was demonstrated: comaruman from the marsh cinquefoil Comarum polustre, bergenan from the Siberian tea Bergenia crassifolia, lemnan from the duckweed Lemna minor,

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