Authors:Anna Polgár, Márta Brózik, Sára Tóth, Marcsilla Holub, and A. Falus
, M., Maruo, N., Taga, T., Kishimoto, T., Klein, B. (1993) Increased and highly stable levels of functional soluble IL-6R in sera of patients with monoclonal gammopathy. Eur. J. Immunol. 23 , 820-824.
Increased and highly
some chemical properties of the soil. Laboratory tests. (pH value, phenolphtalein alkalinity expressed in soda, total water soluble salt content, hydrolytic (y
value) and exchangeable acidity (y
value). (In Hungarian) Hungarian Standard
Ringens, P. J., Hoenders, H. J., Bloemendal, H. (1982) Effect of aging on the water-soluble and water-insoluble protein in normal human lens. Exp. Eye Res. 34 , 201-207.
Effect of aging on the water-soluble and water
Authors:J. Balković, J. Kollár, V. Šimonović, and H. Žarnovićan
Aluminium as a growth limiting factor has been recognized for many years. At high concentrations, aluminium (Al) ions reduce nutrient availability in soils, harm plant cells and thus inhibit plant growth. In addition, Al concentration may be a major factor filtering species composition on acid soils in favour of Al-resistant plants. In this study we analyse species responses and turnover along soil pH and Al gradients and we attempt to interpret the results with respect to the recognised aluminium solubility patterns. Plant community and soil data collected from mesophilous and acidophilous submontane broad-leaved forests of Western Slovakia were used for this purpose. Topsoil horizons were analysed for soil reaction (pH), organic carbon and extractable total aluminium. Species responses to the Al measurements were analysed and tested using CCA and the Huisman-Olff-Fresco (HOF) model. We calculated species turnover by accumulating the first derivatives of all HOF response curves, and interpreted them with respect to the Al solubility pattern observed in the soil dataset. We also performed a bioindication experiment to test how a species assemblage indicates the aluminium gradient. In total, 81% of species shows a significant response to the soil Al gradient. We identified that a rapid retreat of many species and, in consequence, high compositional turnover (ecotone) corresponded with a discontinuity in Al solubility observed at 130 mg Al kg−1 (pH 3.8). Here, the exchangeable Al became increasingly under-saturated with respect to the equilibrium attained at higher pH. This discontinuity was also visible in the bioindication experiment, where the prediction algorithm operated better at the acidic end of the gradient. The results indicate that the studied plant assemblages respond sensitively to soil Al solubility. Changes in aluminium solubility in soils correspond with ecotone between adjacent types of vegetation.
Authors:Róbert Víg, Péter Tamás Nagy, Attila Dobos, and János Nagy
-, t - és Welch-próbák. In: Biometria agrártudományi alkalmazásokkal. 164–168. Budapesti Corvinus Egyetem–Aula Kiadó Kft. Budapest.
Hong-Ling, L. et al., 2008. Effects of soluble organic N on evaluating soil N
The vegetative buds and later on young needles as well as needles formed in spring previous year of Picea abieswere used in the experimental work. Extracted proteins were determined spectrophotometrically and the amount of dry weight was measured. The data revealed that the dry weight of needles formed in spring previous year was about three times higher than in the vegetative buds at the beginning of investigations. During the sampling period the dry weight in those needles was keeping nearly the same level (39-54%). The increase in dry weight was noticed in the young needles 5-6 weeks after vegetative buds burst. The amount of total soluble proteins in the needles formed previous year was about 140 mg/g of dry weight and it was uniformed during the investigation period. In the vegetative buds the amount of proteins was three times higher than in needles. But, the concentration starts to decrease just before bursting of the vegetative buds as well as during next 2 or 3 weeks when young shoot proliferated. After this decreasing period amount of proteins in newly formed needles briefly reached (in 2 weeks period) the level as it was in vegetative buds. In the following period the decrease of water amount as well as the protein amount in young needles was observed.