scholarly journals Sperm respiration intensity and survival of spermatozoa with taurine addition in diluted bull ejaculates

2014 ◽  
Vol 16 (3) ◽  
pp. 110-115
Author(s):  
R. D. Ostapiv ◽  
◽  
V. V. Manko ◽  
I. M. Yaremchuk ◽  
D. D. Ostapiv ◽  
...  
Keyword(s):  
Respiration Intensity

Effects of the Postharvest Storage Temperature and its Fluctuations on the Keeping Quality of Agaricus Bisporus

2006 ◽  
Vol 2 (1) ◽  
Author(s):  
Jiying Zhu ◽  
Xiangyou Wang ◽  
Yingchao Xu
Keyword(s):  
Relative Humidity ◽  
Temperature Fluctuation ◽  
Agaricus Bisporus ◽  
Storage Temperature ◽  
Postharvest Storage ◽  
Postharvest Physiology ◽  
Respiration Intensity ◽  
Keeping Quality ◽  
Lower Temperature

Effects of storage temperature and temperature fluctuation on postharvest physiology and quality of Agaricus bisporus were studied. The results have shown that lower temperature with higher relative humidity can reduce the cap opening percentage of postharvest Agaricus bisporus, weakening its respiration intensity and inhibiting PPO activity and degree of browning; temperature fluctuation during storage may increase the physiology activities of Agaricus bisporus, which speeds up the after-ripening and senescence.

scholarly journals Assessment of the tissue respiration intensity after cardiopulmonary bypass by studying erythrocytes morphology

2019 ◽  
Vol 18 (3) ◽  
pp. 53-58
Author(s):  
D. Yu. Romanovskiy ◽  
A. M. Volkov ◽  
A. V. Biryukov ◽  
I. R. Skibro ◽  
A. G. Butuzov ◽  
...  
Keyword(s):  
Cardiopulmonary Bypass ◽  
Red Blood Cells ◽  
Morphometric Analysis ◽  
Blood Cells ◽  
Blood Test ◽  
Heart Surgery ◽  
Tissue Respiration ◽  
Gas Exchanges ◽  
Respiration Intensity ◽  
Arterial Blood

Introduction. It was previously unknown that the form of erythrocytes depends on their interaction with oxygen. The form of red blood cells is reversible and changes both after passing through the lungs (oxygenator), and after gas exchanges in the tissues.Purpose of the study. In order to study the effect of cardiopulmonary bypass (CPB) on the erythrocyte morphology, the intensity of gas exchanges in the body tissues of the patient was determined using morphometric analysis of the form of erythrocytes.Material and methods. To achieve this goal, we developed a method for the morphometric analysis of erythrocytes «in vitro». Blood test was performed before surgery, on the 10th and every 30th minute of CPB, 12 hours after surgery.Results. Using this fact, we studied tissue respiration intensity. We found that normal arterial blood contains 85 % [80–95 %] red blood cells covered with small «villi» (0.3–0.4 μm), whereas venous blood consists mostly of «large-villous» erythrocytes (length of the «villi» 0.4–1.0 μm, 70 % [6–80 %]). During pairwise comparison we found the significant difference in the proportion of «large-villous» red blood cells in arterial blood before (15 % [5–20 %]) and after (35 % [20–50 %]) CPB. Partial pressure of oxygen and carbon dioxide changes throughout CPB and it shows changes in oxygen carrying capacity of blood. Decrease in the oxygen capacity of the blood reflects the intensity of tissue respiration on the one hand, and the degree of mechanical damage to red blood cells on the other.Conclusion. Heart surgery in infrared conditions lead to pronounced shifts in the ratio of discocytes and pathological forms of red blood cells in the blood. Inhibition of the red blood oxygen consumption during CPB indicates changes in the metabolic reactions, erythrocytes morphology and functionality. These data give us more complete understanding of the pathophysiological changes throughout CPB. The proposed method of erythrocytes morphometric analysis can be used as an express blood test in heart surgery with CPB, enabling better understanding of red blood state.

Study of Effect on Soil Salinity and Respiration Intensity by the Straw Compost

2012 ◽  
Vol 518-523 ◽  
pp. 245-248
Author(s):  
Xin Feng ◽  
Xiao Fei Zhou ◽  
Yu Hang Pei ◽  
Yan Hui Ge ◽  
Yu Hong Xie
Keyword(s):  
Soil Respiration ◽  
Soil Ph ◽  
Soil Salinity ◽  
Experimental Conditions ◽  
Respiration Intensity ◽  
Before And After ◽  
Salinity Increase ◽  
The Relationship ◽  
Experimental Group ◽  
Experiment Analysis

After the straw fermentation and add in soil for pot experiment, analysis of the soil pH, salinity, respiration intensity, and the relationship between soil pH and respiration intensity, salinity and respiration intensity before and after pot, concluded: pot under experimental conditions help to reduce soil pH and salinity, increase soil respiration intensity, soil pH, salinity and soil respiration intensity trends reverse. Experimental results show that the conditions for the experimental group 19-27 are more conducive to low soil pH and salinity, increase soil respiration intensity, and to improve soil properties, making it suitable for crop growth.

scholarly journals ІНТЕНСИВНІСТЬ ДИХАННЯ ПЛОДІВ АБРИКОСА ЗАЛЕЖНО ВІД СПОСОБУ ЇХ ОБРОБКИ АНТИОКСИДАНТНОЮ КОМПОЗИЦІЄЮ АКМ

2012 ◽  
pp. 77-80
Author(s):  
В. М. Соколова
Keyword(s):  
Uniform Thickness ◽  
Respiration Intensity

Встановлено, що із досліджених способів обробкиплодів абрикоса найбільш ефективним є обприску-вання їх розчином антиоксидантної композиціїАКМ перед збиранням, яке сприяє утворенню наповерхні плоду найбільш однорідної захисної плівкитовщиною 7,0–7,5 мкм та забезпечує рівномірнийрозподіл антиоксидантів по їх поверхні. Така об-робка дозволяє в 1,4–1,5 рази знизити інтенсив-ність дихання плодів, відсунути на більш пізністроки настання клімактеричного підйому та, якнаслідок, подовжити термін їх зберігання до 55 діб. It is established that the studied methods of processingthe apricot fruit is the most effective way to spray thefruit with a solution of antioxidant compositions AKMbefore harvest, which provides forming on the apricotssurface film of uniform thickness, which reduces the respiration intensity of fruits in 1,4-1,5 times.

Estimation of the Readily Oxidizable Organic Matter Reserve and its Effect on the Intensity of Organic Matter Destruction by Bacteria in the Danube River

1990 ◽  
Vol 22 (5) ◽  
pp. 31-33 ◽  
Author(s):  
I. Kh Bashmacova
Keyword(s):  
Organic Matter ◽  
Particulate Organic Matter ◽  
Turnover Rate ◽  
Danube River ◽  
Bacterial Respiration ◽  
Labile Organic Matter ◽  
Respiration Intensity ◽  
The Danube River ◽  
River Danube

During an international expedition devoted to studying the River Danube in March 1988, the influence of readily oxidizable organic matter on the destruction of organic matter by bacteria was investigated. Readily oxidizable (labile) organic matter (LOM), LOM turnover rate, and concentration of particulate organic matter (POM) were quantitatively analysed. It was found that the minimum values of the parameters studied occurred in the Middle Danube, i.e., the Bulgarian and Yugoslavian stretches of the river. Self-purification did not exceed 23 days. Regarding the Upper Danube (i.e., Austria, Czechoslovakia, and Hungary), higher LOM and POM concentrations, bacterial respiration intensity, and self-purification rates (15 days) were observed. However, the maximum values were found in the Kilia delta (USSR). This was attributed to the great amount of organic matter (OM) in particulates contributed from the upper reaches of the river. At the same time, the Soviet stretch of the Danube was characterized by the most intense processes of destruction of OM associated with aggregated bacterioplankton, which gave higher self-purification rates (up to 9 days).

Effect of Acute Gamma Radiation on some Physiological Features of Lichens

1995 ◽  
Vol 27 (3) ◽  
pp. 215-224
Author(s):  
M. G. Nifontova ◽  
A. P. Ravinskaya ◽  
I. A. Shapiro
Keyword(s):  
Gamma Radiation ◽  
Nitrogen Content ◽  
Membrane Permeability ◽  
Peroxidase Activity ◽  
Physiological Characteristics ◽  
Hypogymnia Physodes ◽  
Respiration Intensity

AbstractThe influence of acute gamma radiation on four physiological characteristics of lichens was investigated. Membrane permeability in irradiated thalli of Cladonia arbuscula, Cetraria islandica and Hypogymnia physodes increased considerably compared to controls. The nitrogen content in Peltigera aphthosa appeared to be stable to acute gamma radiation. Up to 1000 Gy there was no essential decrease in respiration intensity in H. physodes and P. aphthosa or of peroxidase activity in P. aphthosa..

scholarly journals METHANE POTENTIAL AND RESPIRATION INTENSITY OF WASTES AND AGRICULTURAL BYPRODUCTS

2020 ◽  
Vol 18 (5) ◽  
pp. 6425-6441
Author(s):  
ZS. UVEGES ◽  
Á. RAGONCZA ◽  
ZS. VARGA ◽  
L. ALEKSZA
Keyword(s):  
Respiration Intensity ◽  
Agricultural Byproducts ◽  
Methane Potential

scholarly journals Influence of Iron on Respiration in Corn (Zea Mays) Seedlings

2011 ◽  
Vol 68 (1) ◽  
Author(s):  
Lucia MIHALESCU ◽  
Oana MARE ROSCA ◽  
Monica MARIAN ◽  
Zorica VOSGAN ◽  
Aurel MAXIM ◽  
...  
Keyword(s):  
Zea Mays ◽  
Respiratory Chain ◽  
Solution Concentration ◽  
Intensity Increase ◽  
Iron Ion ◽  
Respiration Intensity ◽  
Fecl3 Solution ◽  
Low Concentrations ◽  
Growing Environment

In this paper the influence of iron in different concentrations of FeCl3 solution on the respiration of corn (Zea mays) seedlings was observed. The following variants were used: V1 – as control, V2 = 0.1%FeCl3, V3 = 0.5%FeCl3, V4= 1%FeCl3. The respiration intensity of the 4 variants was determined applying the confined atmosphere procedure (Boysen-Jensen). This is a method based on determining the quantity of produced CO2. In case of this procedure, the contact between vegetal material and atmosphere takes place in a closed recipient, in which CO2 - resulted from respiration – is fixed by a solution of Ba(OH)2. An increase of the respiration intensity was noted, proportional with the increase of the administered FeCl3 solution concentration. Iron ion enters in the structure of cytochromes, which are components of the respiratory chain. Its presence in the growing environment of the corn seedlings led to the respiration increase. The intensity increase quickly evolves with low concentrations of iron, for example the variant with a concentration of 0.1% salt of FeCl3, for which it increased with 184% compared to the control, as the increase intensifies at concentrations of 0.5% with 259%. We note that in the last case, when iron is in the highest concentration of 1%FeCl3, the increase is no more so heightened, as it is higher with only 128% versus the previous variant. Iron highly stimulates the respiration up to a certain concentration, it was remarked

scholarly journals The influence of carboxymethylcellulose, xanthan and guar-gum addition in bread dough before freezing on metabolism and viability of Saccharomyces cerevisiae

2009 ◽  
pp. 211-220
Author(s):  
Dusanka Pejin ◽  
Olgica Grujic ◽  
Jelena Pejin ◽  
Irena Dosenovic ◽  
Suncica Kocic-Tanackov
Keyword(s):  
Saccharomyces Cerevisiae ◽  
Growth Rate ◽  
Specific Growth Rate ◽  
Guar Gum ◽  
Specific Growth ◽  
Living Cells ◽  
Optimal Conditions ◽  
Intact Cells ◽  
Respiration Intensity ◽  
The Mean

Doughs were prepared with different concentrations of carboxymethylcellulose, xanthan, and guar-gum (0.1, 0.2 and 0.3% in doughs), freezed at -20?C and analyzed after 0, 7, 15 and 30 days. Pure Saccharomyces cerevisiae culture was isolated from dough and was cultivated under optimal conditions during 24 hrs to determine the following parameters: specific growth rate, fermentative activities and cytochromes contents in intact cells with the aim of determining the respiration intensity. During freezing of dough for 30 days, the percentage of living cells from dough surface was 53.11% and from the middle 54.95%. Carboxymethylcellulose in concentration of 0.3 and 0.5% increased number of survived cells on the surface to 70.64, and 70.28% and in the middle to 74.79, and 76.54%, respectively. Guar-gum increased number of survived cells only in concentration of 0.1% on the surface to 70.17% and in the middle of the dough to 75.26%. The mean specific growth rate decreased by approximately 10% during 30 days of storage at -20?C. Content of cytochromes in intact cells decreased in all samples during freezing.

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