scholarly journals Soil mites (Acari) on plantations of chokeberry and black currant under microirrigation

2009 ◽  
Vol 46 (2) ◽  
pp. 89-96 ◽  
Author(s):  
Andrzej Klimek ◽  
Stanisław Rolbiecki
Keyword(s):  
Drip Irrigation ◽  
Soil Samples ◽  
Oribatid Mites ◽  
Ribes Nigrum ◽  
Black Currant ◽  
Soil Mites ◽  
Aronia Melanocarpa ◽  
Experimental Variant ◽  
Major Nutrients ◽  
Mite Communities

Soil mites (Acari) on plantations of chokeberry and black currant under microirrigationBushes of black currant (Ribes nigrum) were slightly higher and wider, and their leaves had a higher content of major nutrients than chokeberry (Aronia melanocarpa). Soil samples were collected in 2004, in spring, summer and autumn, i.e. 3×20 samples from each experimental variant. Three irrigation variants were compared: no irrigation (C), drip irrigation (D), and micro-jet sprinkling (M). In the soil of the black currant plantation, the density of mites was higher (in variants C and D), as compared to the chokeberry plantation. The saprophagous oribatid mites were predominant in the studied mite communities, while Actinedida and Gamasida were less numerous. Oribatid mites were more numerous and more diverse in the black currant plantation than in the chokeberry plantation. The influence of irrigation on the density of oribatid mites was insignificant. In the communities of oribatid mites,Tectocepheus velatuswas distinctly predominant on most plots.

scholarly journals Colonization by mites of glacier-free areas in King George Island, Antarctica

2009 ◽  
Vol 44 (8) ◽  
pp. 891-895 ◽  
Author(s):  
Grzegorz Gryziak
Keyword(s):  
West Coast ◽  
Protected Area ◽  
Soil Samples ◽  
Oribatid Mites ◽  
King George Island ◽  
Admiralty Bay ◽  
Near Shore ◽  
South Shetlands ◽  
Mite Communities ◽  
The Antarctic

This work aimed to investigate the ratio of colonization by terrestrial mites on ice-free areas created by the ongoing climate-induced melting of Antarctic glaciers. Glacier retreat opens new ice-free areas for the colonization by vegetation and animals. The study was undertaken on the Antarctic Specially Protected Area no. 128 (West Coast of the Admiralty Bay, King George Island, South Shetlands Islands). Transects marked between the Ecology, Baranowski and Windy Glaciers, and a sea shore were used to collect soil samples. Oribatid mites were found only on near-shore areas, on patches of vegetation of more than 30 years of age. The colonization by mite communities is strongly determined by the presence of plants.

scholarly journals Comparison of Earthworms (Lumbricidae) and Oribatid Mite (Acari, Oribatida) Communities in Natural and Urban Ecosystems

2011 ◽  
Vol 45 (4) ◽  
pp. e-16-e-24 ◽  
Author(s):  
M. Murvanidze ◽  
E. Kvavadze ◽  
L. Mumladze ◽  
T. Arabuli
Keyword(s):  
Species Abundance ◽  
Oribatid Mite ◽  
Urban Ecosystems ◽  
Soil Samples ◽  
Oribatid Mites ◽  
Species Number ◽  
Natural Ecosystems ◽  
Invertebrate Animals ◽  
Mite Communities ◽  
Urban Sites

Comparison of Earthworms (Lumbricidae) and Oribatid Mite (Acari, Oribatida) Communities in Natural and Urban Ecosystems This study investigates earthworm and oribatid mite communities in urban, semi-natural and natural ecosystems of Tbilisi (Georgia). Ten species of earthworms and 100 species of oribatid mites were registered in 45 soil samples. Two species of oribatid mites, Microzetes auxilaris Grandjean, 1936 and Multioppia laniseta Moritz, 1966, are new for the Caucasian fauna. We hypothesized that species number and abundance of invertebrate animals tend to decrease from natural to urban ecosystems. The hypothesis was supported only partially. Number of species of oribatid mites and earthworms decreased together with increase of urbanization, whereas abundance showed no significant changes due to high density of stress tolerant and ubiquitous species in urban sites. Accordingly, species abundance is considered to have minor indicatory value. Our studies support ecological "time-hypothesis" in a way that older (natural) sites were presented with more diverse fauna than recent (urban) ones. Statistical analyses showed that studied ecosystems should be grouped in two rather than three categories: in urban and natural ones.

Fungus Spaeropsis Malorum peck. One of the currant stalk drying agents

2020 ◽  
Vol 62 ◽  
pp. 172-178
Author(s):  
S. E. Golovin
Keyword(s):  
Causative Agent ◽  
High Frequency ◽  
Frequency Of Occurrence ◽  
Ribes Nigrum ◽  
Black Currant ◽  
Causative Agents ◽  
Pear Trees ◽  
Red Currant

The article highlights the results of research carried out in 2019-2020 to study the reasons for the drying out of the stems of black currant (Ribes nigrum L.), red currant (Ribes rubrum L.) and golden currant (Ribes aureum L.). As a result of research, the fungus Sphaeropsis malorum Peck. in the first in Russia it was revealed from the drying stems of three types of black currants, red currants and golden currants. This  pathogen inhabited currant stems together with fungi from the genus Cytospora spp., causative agents of stem drying. On red currants, it was established that S. malorum was the main causative agent of branch drying, as indicated by the high frequency of occurrence (75.0-83.3 %) of this fungus on the affected stems, compared with species from the genus Cytospora spp. (16.7-33.3 %) and Phomopsis ribesia (25.0 %). Due to the fact that the cultivation of currants in the immediate vicinity of apple and pear trees leads to infection of plants with the fungus S. malorum, it is necessary to avoid planting currants in the vicinity of fruit-bearing seed gardens.

Anthocyanin-rich black currant (Ribes nigrum L.) extract affords chemoprevention against diethylnitrosamine-induced hepatocellular carcinogenesis in rats

2011 ◽  
Vol 22 (11) ◽  
pp. 1035-1046 ◽  
Author(s):  
Anupam Bishayee ◽  
Thomas Mbimba ◽  
Roslin J. Thoppil ◽  
Erzsébet Háznagy-Radnai ◽  
Péter Sipos ◽  
...  
Keyword(s):  
Ribes Nigrum ◽  
Black Currant ◽  
Hepatocellular Carcinogenesis

scholarly journals Chemical and sensorial characteristics of fruit spirits produced from different black currant (Ribes nigrum l.) and red currant (Ribes rubrum l.) cultivars

2012 ◽  
Vol 31 (2) ◽  
pp. 217 ◽  
Author(s):  
Todor Vulić ◽  
Ninoslav Nikićević ◽  
Ljubiša Stanković ◽  
Milovan Veličković ◽  
Marina Todosijević ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Ethyl Acetate ◽  
Sensory Evaluation ◽  
Chemical Characteristics ◽  
Ribes Nigrum ◽  
Black Currant ◽  
Fruit Spirits ◽  
Red Currant

Chemical characteristics of fruit spirits produced from three black currant cultivars (Malling Juel, Ometa, Ben Sarek) and two red currant cultivars (Rondom and Versailles) grown in Serbia were examined using gas chromatography. In addition, sensory evaluation of the spirit samples was performed using the Buxbaum model of positive rating. Fruit spirits produced from black currant cultivars displayed the highest contents of methanol (267.2 - 595.0 g/hl A. A) and amyl alcohols (74.2 - 204.8 g/hl A. A). Total sensory scores of currant brandies ranged between 17.60 and 18.40, while currant brandy produced from Ben Sarek black currant cultivar received the highest score (18.40). All tested samples of currant brandies fulfilled EU requirements as regards their content of methanol and other components such as acetaldehyde, ethyl acetate and high alcohols. The currant distillates were compared with other commercial spirits, including plum and grape brandies.

Hypotensive, cardiodepressant, and vasorelaxant activities of black currant (Ribes nigrum ‘Ben Sarek’) juice

2016 ◽  
Vol 94 (10) ◽  
pp. 1102-1105 ◽  
Author(s):  
Suzana Branković ◽  
Bojana Miladinović ◽  
Mirjana Radenković ◽  
Marija Gočmanac Ignjatović ◽  
Milica Kostić ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Arterial Blood Pressure ◽  
Hypotensive Effect ◽  
Rat Aorta ◽  
Ribes Nigrum ◽  
Black Currant ◽  
Arterial Blood ◽  
Dose Dependent Decrease ◽  
Dose Dependent

The aim of this study was to evaluate the effects of black currant (Ribes nigrum L. ‘Ben Sarek’) juice on the blood pressure and frequency of cardiac contractions, as well as vasomotor responses of rat aortic rings. Arterial blood pressure was measured directly from the carotid artery in the anaesthetized rabbits. The aortic rings were pre-contracted with KCl (80 mmol·L−1), after which black currant juice was added. An intravenous injection of black currant juice (0.33–166.5 mg·kg−1) induced a significant and dose-dependent decrease of rabbit arterial blood pressure and heart rate. The black currant juice decreased arterial blood pressure of rabbit by 22.33% ± 3.76% (p < 0.05) and heart rate by 17.18% ± 2.93% (p < 0.05). Cumulative addition of the black currant juice (0.01–3 mg·mL−1) inhibited concentration-dependent KCl induced contractions of the isolated rat aorta. The black currant juice, at the concentration of 3 mg·mL−1, caused a maximum relaxation of 21.75% ± 3.15% (p < 0.05). These results demonstrate that black currant juice can induce hypotension. The hypotensive effect of the black currant may occur as the consequence of its inhibitory activity on the rate of heart contraction and vasorelaxant effects.

Sign in / Sign up

Export Citation Format

Share Document