Hydrokaffeesäure, ein Bestandteil der Sporen von Lycopodium clavatum

1927 ◽  
Vol 10 (1) ◽  
pp. 472-474 ◽  
Author(s):  
Fritz Zetzsche ◽  
Karl Huggler
Keyword(s):  
Lycopodium Clavatum

scholarly journals Evaluation of micro-energy dispersive X-ray fluorescence and histochemical tests for aluminium detection in plants from High Altitude Rocky Complexes, Southeast Brazil

2014 ◽  
Vol 86 (1) ◽  
pp. 285-296 ◽  
Author(s):  
NAIARA V. CAMPOS ◽  
TIAGO A.R. PEREIRA ◽  
MARIANA F. MACHADO ◽  
MARCELO B.B. GUERRA ◽  
GLÁUCIA S. TOLENTINO ◽  
...  
Keyword(s):  
High Altitude ◽  
Accumulation Pattern ◽  
X Ray ◽  
Edx Analysis ◽  
Lycopodium Clavatum ◽  
Histochemical Tests ◽  
Ecological Success ◽  
Positive Correlations ◽  
Non Destructive ◽  
Potential Tool

The soils developed under High Altitude Rocky Complexes in Brazil are generally of very low chemical fertility, with low base saturation and high exchangeable aluminium concentration. This stressful condition imposes evolutionary pressures that lead to ecological success of plant species that are able to tolerate or accumulate high amounts of aluminium. Several analytical methods are currently available for elemental mapping of biological structures, such as micro-X-ray fluorescence (μ-EDX) and histochemical tests. The aim of this study was to combine μ-EDX analysis and histochemical tests to quantify aluminium in plants from High Altitude Rocky Complexes, identifying the main sites for Al-accumulation. Among the studied species, five showed total Al concentration higher than 1000 mg kg−1. The main Al-hyperaccumulator plants, Lavoisiera pectinata, Lycopodium clavatum and Trembleya parviflora presented positive reactions in the histochemical tests using Chrome Azurol and Aluminon. Strong positive correlations were observed between the total Al concentrations and data obtained by μ-EDX analysis. The μ-EDX analysis is a potential tool to map and quantify Al in hyperaccumulator species, and a valuable technique due to its non-destructive capacity. Histochemical tests can be helpful to indicate the accumulation pattern of samples before they are submitted for further μ-EDX scrutiny.

scholarly journals Comparative Fingerprint and Extraction Yield of Medicinal Herb Phenolics with Hepatoprotective Potential, as Determined by UV-Vis and FT-MIR Spectroscopy

2011 ◽  
Vol 39 (2) ◽  
pp. 82 ◽  
Author(s):  
Simona ZAVOI ◽  
Florinela FETEA ◽  
Floricuta RANGA ◽  
Raluca M. POP ◽  
Anca BACIU ◽  
...  
Keyword(s):  
Phenolic Acids ◽  
Extraction Yield ◽  
Bioactive Molecules ◽  
Chelidonium Majus ◽  
Glycerol Water ◽  
Lycopodium Clavatum ◽  
Mir Spectroscopy ◽  
Polyphenolic Composition ◽  
Solvent Dependence ◽  
Fingerprint Region

The present study was aimed to compare the polyphenolic composition of six medicinal herbs, from wild flora of Romania. The plants investigated, Cynara scolimus (artichoke), Taraxacum officinalis (dandelion), Chelidonium majus (celandine), Hypericum perforatum (St. John’s wort), Silybum marianum (Mary thistle) and Lycopodium clavatum (Wolf’s claw) are known, to have hepatoprotective action. Using in parallel glycerol-water, ethanol-water and methanol, the solvent-dependence of the extract fingerprint and composition in bioactive molecules was studied by UV-Vis and Infrared (FT-MIR) spectrometry. The extraction yields, calculated as an extraction factor (EF) were superior in acidic methanol comparative to glycerin and ethanol, favorising the increase in phenolic acids against flavonoid derivatives . Based on the differences of polarity between the three solvents used, higher EF values were obtained for dandelion, artichoke, celandine and St. John wort, more rich in phenolic acids than flavonoids. Mary thistle and Wolf’s claw had lower concentrations of phenolics, but higher content of lignans and terpenoids. Based on the FT-MIR peaks from 8 regions, for each plant extract, has been determined the fingerprint region between 900 and 1500 cm-1and identified the specific functional groups. A good, significant correlation was found between the concentration of total phenolics calculated by UV-Vis spectrometry and FTIR methods, after calibration with gallic acid. The value of the MIR signal at 1743 cm-1 may be considered a good indicator of phenolics concentration in such extracts. Combined UV-Vis and FTIR spectroscopy are recommended as rapid and reliable tools to investigate the fingerprint and to predict the composition of medicinal plants or to evaluate the quality and authenticity of different standardized formulas.

scholarly journals Soil Pollen Indicators of Historical Arable Horizons from the Zvenigorod Biological Station of the Moscow State University

2021 ◽  
Vol 4 (38) ◽  
pp. 205-216
Author(s):  
Varvara O. Bakumenko ◽  
◽  
Ekaterina G. Ershova ◽  
◽  
Keyword(s):  
Pollen Analysis ◽  
Forest Soils ◽  
State University ◽  
Buried Soils ◽  
Biological Station ◽  
Lycopodium Clavatum ◽  
Arable Weeds ◽  
Specific Complex ◽  
Cultural Layers ◽  
Moscow State University

In this work we present the results of spore and pollen analysis of forest soils from the Zvenigorod biological station of Moscow State University (Moscow Region, Russia). A comparative analysis of forest soils formed on the site of historical fields of the XVIII–XIX centuries and beyond showed that a specific complex of pollen and spores remains in the residual arable horizons, characteristic only of soils that have passed through the stages of plowing and fallow. It includes pollen from cultivated cereals and arable weeds (buckwheat, cornflower blue), spores of the mace-shaped plaunus (Lycopodium clavatum), as well as spores of the mosses Riccia glauca and Anthoceros spp. The latter are exclusive indicators of fallows, since they are practically not found in other habitats. The identified pollen indicators can be used in landscape and archaeological research to interpret the data of spore-pollen analysis of cultural layers, buried soils, gully-ravine sediments. They can also be used to define the boundaries of ancient fields under modern vegetation.

LYCOPODIUM ALKALOIDS: IV. THE CONSTITUTION AND STEREOCHEMISTRY OF LYCOCLAVINE, AN ALKALOID OF LYCOPODIUM CLAVATUM VAR. MEGASTACHYON

1962 ◽  
Vol 40 (11) ◽  
pp. 2088-2100 ◽  
Author(s):  
W. A. Ayer ◽  
D. A. Law
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Lycopodium Clavatum ◽  
Nuclear Magnetic Resonance Spectra ◽  
Lycopodium Alkaloids ◽  
Related Compounds ◽  
Magnetic Resonance Spectra ◽  
Nuclear Magnetic

The alkaloids of Lycopodium clavatum var. megastachyon have been examined and two hitherto unreported alkaloids, lycoclavine and acetyllycoclavine, were isolated and their structures determined. The nuclear magnetic resonance spectra of these and related compounds are discussed in terms of the conformation of ring B in these alkaloids.

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