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Degradation of Phenols Formed during Lignin Pyrolysis by Microfungi of Genera Trichoderma and Penicillium
Pleiades Publishing Ltd - Tập 32 - Trang 445-449 - 2005
E. A. Karetnikova, A. D. Zhirkova
This work presents the data on the rate of utilization of phenols formed during lignin pyrolysis by micromycetes of the genera Trichoderma and Penicillium. Trichoderma strains utilized phenols at the concentration of liquid pyrolytic products of 0.5–1%, while Penicillium strains degraded over 50% phenols at the concentration of pyrolytic products of 2%. Micromycete cultures completely utilized phe...... hiện toàn bộ
Mechanism of enzymatic crosslinking of fibrinogen molecules
Pleiades Publishing Ltd - - 2008
M. A. Rozenfeld, V. V. Leonova, M. L. Konstantinova, S. D. Razumovskii
The mechanism of enzymatic covalent crosslinking of fibrinogen molecules under the effect of plasma transglutaminase (factor XIIIa) has been studied. Using the methods of elastic and dynamic light scattering combined with viscosimetry and electrophoresis of the reduced samples, it has been shown that fibrinogen oxidation strongly accelerates self-assembly of the covalently crosslinked fibrinogen p...... hiện toàn bộ
Helminth Fauna of Black-Legged Kittiwakes (Rissa tridactyla, Laridae, Charadriiformes) in the Northern Part of the Kara Sea
Pleiades Publishing Ltd - Tập 50 - Trang 2147-2154 - 2024
V. V. Kuklin, M. M. Kuklina, A. V. Ezhov
The results of original studies on the helminth fauna of the black-legged kittiwake (Rissa tridactyla L.) (ten ad. and ten juv.) in the northern part of the Kara Sea (Severnaya Zemlya Archipelago and Wiese Island) carried out in the years 2019–2020 are presented. Eight species of helminths (one trematode, four cestodes, and three nematodes) have been registered. For the first time in seabirds in t...... hiện toàn bộ
The Co-Invasion of the Three Asteraceae Invasive Plants Can Synergistically Increase Soil Phenol Oxidase Activity
Pleiades Publishing Ltd - Tập 50 - Trang 467-473 - 2023
Youli Yu, Zhelun Xu, Shanshan Zhong, Huiyuan Cheng, Erhui Guo, Congyan Wang
The co-invasion of two or even more invasive plants in the same habitat can occur through invasion meltdown. Nevertheless, there is little progress in the ecological effects of the co-invasion of multiple invasive plants on soil enzyme activities. This study aimed to evaluate the effects of the co-invasion of three Asteraceae invasive plants (Conyza canadensis (L.) Cronq., C. sumatrensis (Retz.) W...... hiện toàn bộ
The evolutionary reorganization of ontogeny and origin of multicellularity
Pleiades Publishing Ltd - Tập 37 - Trang 123-129 - 2010
I. V. Dovgal
The formation of morphogenetic mechanisms during emergence of multicellularity is discussed in this article.
Study of the Disorders of the Blood System of Irradiated and Unirradiated Animals Kept in Contact
Pleiades Publishing Ltd - Tập 50 Số 11 - Trang 2956-2961 - 2023
И И Пелевина, И. Н. Когарко, E. A. Pryakhin, В. В. Петушкова, Б. С. Когарко, E. A. Neyfakh, S. S. Andreev, О. В. Ктиторова, I. I. Ganeev
Is sexual size dimorphism variable? Data on species of the genus Martes in the Urals
Pleiades Publishing Ltd - Tập 36 - Trang 45-52 - 2009
V. G. Monakhov
Sexual dimorphism in cranial measurements was studied in Ural populations of two species of the genus Martes, M. martes and M. zibellina. The index of sexual dimorphism averaged 8.39% in the former and 9.03% in the latter, being subject to geographic variation. For the first time, temporal variability of sexual dimorphism in dimensional characters was revealed in mammals by analyzing M. zibellina ...... hiện toàn bộ
Foraging and Daily Activity Features of Ants of the Genus Formica (Insecta, Hymenoptera) in Forest–Steppe Biotopes of Saratov Oblast
Pleiades Publishing Ltd - Tập 46 - Trang 1313-1316 - 2020
N. S. Pavlova, V. V. Anikin
This paper presents the results of our research on the foraging activity of ants in forest–steppe biotopes of Saratov oblast. The food spectrum of ants was found to include small invertebrates (mainly insects), plant seeds, and aphid honeydew. Ants are able to switch to the most massive type of food. F. pratensis behaves as a species with a daytime or morning–evening activity type, depending on th...... hiện toàn bộ
Changes in the Distribution and Status of the Great Snipe (Gallinago media, Charadriiformes, Scolopacidae) in Northwestern Russia over the past 150 Years
Pleiades Publishing Ltd - Tập 49 - Trang 1614-1625 - 2023
A. V. Artemyev
Data on the distribution and abundance of the Great Snipe in northwestern Russia and in neighboring Finland over the past 150 years are summarized. There was a decrease in the number of birds, which went from west to east, in this part of the range in the 20th century. The Finnish population declined to a critical level by the middle of the 20th century; a noticeable decline in the number of birds...... hiện toàn bộ
Spatial Distribution of Picoseston in the Saratov Reservoir in Summer
Pleiades Publishing Ltd - Tập 48 - Trang 1964-1971 - 2022
E. S. Krasnova, M. V. Umanskaya
Abstract—The structure and spatial distribution of picoseston in the Saratov Reservoir in July 2011 and August 2014 are described. On average, the total abundance of cells and particles forming picoseston was 1.87 ± 0.73 × 106 cells (part.)/mL; and the total biomass of picoseston was 43.8 ± 19.4 μg C/L. During the study period, single heterotrophic bacteria and phototrophic picocyanobacteria preva...... hiện toàn bộ
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