1,577 results match your criteria Acta Biologica Hungarica[Journal]


An improved light dark box test by using a real-time video tracking system.

Acta Biol Hung 2018 Dec;69(4):371-384

Department of Physiology, Melaka Manipal Medical College (Manipal Campus), Manipal University , Manipal 576104 , India.

In the behavioral science field, many of the oldest tests have still most frequently been used almost in the same way for decades. The subjective influence of human observer and the large inter-observer and interlab differences are substantial among these tests. This necessitates the possibility of using technological innovations for behavioral science to obtain new parameters, results and insights as well. Read More

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December 2018

The application of Magnetic Resonance Imaging (mri) to the examination of plant tissues and water barriers.

Acta Biol Hung 2018 Dec;69(4):423-436

3 Institute of Geological and Geochemical Research, MTA Research Centre for Astronomy and Earth Sciences , Budaörsi út. 45, H-1112 Budapest , Hungary.

The aim of the present study is to extend the applicability of MRI measurements similar to those used in human diagnostics to the examination of water barriers in living plants, thus broadening their use in natural sciences. The cucumber, Cucumis sativus, and Phillyrea angustifolia, or false olive, were chosen as test plants. The MRI measurements were carried out on three samples of each plant in the same position vis-a-vis the MRI apparatus using a Siemens Avanto MRI scanner. Read More

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December 2018

In vitro pharmacological effects of Astragalus eremophilus and Melilotus parviflora.

Acta Biol Hung 2018 Dec;69(4):411-422

1 Department of Biotechnology, University of Science and Technology Bannu-28100, KPK , Pakistan.

Traditional medicines are composed of herbal formulations and their active ingredients and constituents which play a crucial role in the treatment of various human ailments. Astragalus eremophilus and Melilotus indicus (L.) All. Read More

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December 2018

Comparative toxicity evaluation of targeted anticancer therapeutics in embryonic zebrafish and sea urchin models.

Acta Biol Hung 2018 Dec;69(4):395-410

1 Institute of Molecular Genetics and Genetic Engineering, University of Belgrade , Vojvode Stepe 444a, 11010, Belgrade , Serbia.

Cancer drug resistance and poor selectivity towards cancer cells demand the constant search for new therapeutics. PI3K-Akt-mTOR and RAS-MAPK-ERK signaling pathways are key mechanisms involved in cell survival, proliferation, differentiation, and metabolism and their deregulation in cancer can promote development of therapy resistance. We investigated the effects of targeted inhibitors (wortmannin, GSK690693, AZD2014 and tipifarnib) towards these two pathways on early zebrafish and sea urchin development to assess their toxicity in normal, fast proliferating cells. Read More

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December 2018

Inhibition of the formation of amyloid-like fibrils with spices, especially cloves.

Acta Biol Hung 2018 Dec;69(4):385-394

3 Department of Biology, Pedagogical Faculty, Selye János University , Bratislavská cesta 3322, SK-94501 Komarno , Slovak Republic.

During the study of inhibition of amyloid fibril formation, α-chymotrypsin protein was developed in 55% ethanol at pH 7.0. We investigated the inhibitory effect of different spices on amyloid fibril formation using turbidity measurements and Congo red binding assays. Read More

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December 2018

Effects of drought stress on hybrids of Vigna radiata at germination stage.

Acta Biol Hung 2018 Dec;69(4):481-492

1 College of Life Sciences, Shaanxi Normal University , Xi'an , China.

Drought is one the critical abiotic factors that reduces the germination, growth and yield of crops. Therefore the present project was designed with the objective to screen the best drought tolerant hybrid of Vigna radiata. Genetic variations for drought tolerance among these hybrids were assessed by simple and efficient technique. Read More

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December 2018

Biochemical changes in ears of wheat genotypes subjected to Fusarium spp. attack.

Acta Biol Hung 2018 Dec;69(4):493-504

2 Agricultural Institute Osijek , Južno predgrađe 17, HR-31000 Osijek , Croatia.

In wheat, Fusarium fungus promotes the appearance of destructive disease named as Fusarium head blight (FHB) that can cause grain yield reduction and mycotoxin accumulation. The focus of this research was to verify the influence of Fusarium graminearum and F. culmorum on wheat genotypes with different susceptibility to FHB: "Super Žitarka" (susceptible), "Lucija" (moderately resistant) and "Apache" (resistant). Read More

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December 2018

Comparison of the responses to NaCl stress of three tomato introgression lines.

Acta Biol Hung 2018 Dec;69(4):464-480

1 Unité de Physiologie et Biochimie de la Réponse des Plantes aux Contraintes Abiotiques, Département de Biologie, Faculté des Sciences de Tunis, Université Tunis El Manar , 1068 Tunis , Tunisie.

We aimed to examine the response of three tomato introgression lines (IL925.3, IL925.5 and IL925. Read More

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December 2018

Diurnal changes in tomato glutathione transferase activity and expression.

Acta Biol Hung 2018 Dec;69(4):505-509

1 Department of Plant Biology, Faculty of Science and Informatics, University of Szeged , Közép fasor 52, H-6726 Szeged , Hungary.

Although the participation of glutathione transferases (GSTs) in light-dependent pathways and the circadian changes in the whole detoxification system have been studied, there are fewer results regarding the exact daily fluctuation of GSTs. In the present study, it was demonstrated that light up-regulated, while dark period decreased the plant GST activity and the expression of the selected tau group GST genes in tomato. These findings provide additional information on our current knowledge on the circadian rhythm of GSTs in plants and could help in further defining detoxification processes. Read More

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December 2018

Transcriptional profiling of catalase genes in juglone-treated seeds of maize (Zea mays L.) and wheat (Triticum aestivum L.).

Acta Biol Hung 2018 Dec;69(4):449-463

1 Department of Biochemistry and Molecular Biology, University of Natural Sciences and Humanities , Prusa 14, 08-110 Siedlce , Poland.

The major aim of the present study was to investigate the influence of juglone (JU; 5-hydroxy-1,4-naphthoquinone) treatments on the expression level of Cat1, Cat2 and Cat3 genes, encoding the respective catalase isozymes in maize (Zea mays L.) and wheat (Triticum aestivum L.) seeds. Read More

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December 2018

Sodium nitroprusside stimulated production of tropane alkaloids and antioxidant enzymes activity in hairy root culture of Hyoscyamus reticulatus L.

Acta Biol Hung 2018 Dec;69(4):437-448

Department of Horticultural Science, Urmia University , Urmia 165 , Iran.

Hyoscyamus reticulatus L. is a herbaceous biennial belonging to the solanaceae family. Hyoscyamine and scopolamine as main tropane alkaloids accumulated in henbane are widely used in medicine to treat diseases such as parkinson's or to calm schizoid patients. Read More

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December 2018

Isolation of lytic bacteriophages infecting Salmonella Typhimurium and Salmonella Enteritidis.

Acta Biol Hung 2018 Sep;69(3):350-369

Niğde Ömer Halisdemir University , Faculty of Engineering, Department of Food Engineering, Niğde , Turkey.

The objectives of this study were to isolate, purify and determine host range of lytic bacteriophages infecting foodborne the pathogen Salmonella Typhimurium and S. Enteritidis. River/stream water, sewage, raw foods, wastewater from food processing plants, slaughterhouse and fish farms and water from troughs were used for the screening of bacteriophages. Read More

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September 2018

Corchorus olitorius and Urtica pilulifera extracts alleviate copper induced oxidative damage and genotoxicity in tomato.

Acta Biol Hung 2018 Sep;69(3):300-312

1 Institute of Transplantation and Gene Sciences, Baskent University , Ankara , Turkey.

Copper cause oxidative damage in plant cells, and plant extracts are the sources of free radical scavengers. We tested the hypothesis that whether Corchorus olitorius (jute) and Urtica pilulifera (Roman nettle) seed extract treatments of germinated seeds affect copper induced oxidative and genotoxic damage or antioxidant response in tomato. Seedlings were exposed to toxic copper concentration (30 ppm) for 7 days. Read More

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September 2018

Changes in photosynthetic pigments, osmolytes and antioxidants of Indian mustard by drought and exogenous polyamines.

Acta Biol Hung 2018 Sep;69(3):313-324

1 Department of Plant Eco-physiology, Faculty of Agriculture, University of Tabriz , Tabriz , Iran.

A pot experiment was performed as factorial based on randomized complete block design with three replications, to assess the effects of 1 mM spermidine (SPD) and 1 mM putrescine (PUT) on Indian mustard (Brassica Juncea L.) under different levels of watering (100, 75, 50 and 25% of field capacity). Chlorophyll a and b contents decreased, but the ratio of Chl a/b and carotenoid content increased with decreasing water supply. Read More

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September 2018

Physiological effects of the brown seaweed Ascophyllum nodosum) and humic substances on plant growth, enzyme activities of certain pepper plants grown under salt stress.

Acta Biol Hung 2018 Sep;69(3):325-335

3 Department of Soil Science and Plant Nutrition, Faculty of Agriculture, Harran University , Şanlıurfa-63000 , Turkey.

This study was aimed to examine the effects of seaweed extract (SW) and humic acid on the fruit yield, dry weight (DW%), protein, proline, lipid peroxidation (LPO) and antioxidative enzyme activity of pepper plants (Capsicum annuum L.) grown under saline conditions (100 mM). The obtained results indicated that salinity stress affected deleteriously plant growth and all other parameters. Read More

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September 2018

Physiological and structural modifications in snail medic (Medicago scutellata L.) plants exposed to salinity.

Acta Biol Hung 2018 Sep;69(3):336-349

1 Physiology and Biochemistry of Plant Response to Abiotic Stress, Faculty of Science of Tunis, Tunis El Manar University , 2092 Tunis , Tunisia.

Seeds of snail medic (Medicago scutellata L.) were assessed for their response to salt at the germination and seedling stages. NaCl at concentrations 86 and 170 mM decreased the final germination percentage. Read More

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September 2018

Assessment of sperm morphology, chromatin integrity, and catSper genes expression in hypothyroid mice.

Acta Biol Hung 2018 Sep;69(3):244-258

1 Department of Anatomy and Cellular Biology, Faculty of Medicine, Mashhad University of Medical Sciences , Mashhad , Iran.

There is an evident relationship between the fertilizing capacity of sperm and the normal morphology, quality chromatin, and motility of sperm. It is well known that thyroid hormones are the important regulators of testicular function. A correlation was found between the hypothyroidism and sperm damages. Read More

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September 2018

Isolation and identification of a growth inhibitory substance from Heliotropium indicum L.

Acta Biol Hung 2018 Sep;69(3):259-269

1 Department of Applied Biological Science, Faculty of Agriculture, Kagawa University , Miki, Kagawa 761-0795 , Japan.

Heliotropium indicum L. belongs to the family Boraginaceae. The plant has been used as a folk medicine because it contains substances of various biological activities. Read More

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September 2018

GmLEA2-1, a late embryogenesis abundant protein gene isolated from soybean (Glycine max (L.) Merr.), confers tolerance to abiotic stress.

Acta Biol Hung 2018 Sep;69(3):270-282

Key Laboratory of Soybean Biology in Chinese Ministry of Education/Key Laboratory of Biology and Genetics & Breeding for Soybean in Northeast China, Ministry of Agriculture ( Northeast Agricultural University ), Harbin , China.

Late embryonic proteins (LEA) gene family was abundant mainly in higher plant embryos, which could protect the embryos from the damage caused by abiotic stress, especially drought and salt stresses. In the present study, GmLEA2-1 was cloned from soybean leaf tissue treated by 10% polyethylene glycol 6000 (PEG6000). The results of quantitative real-time PCR (qRT-PCR) revealed a variety of expression patterns of GmLEA2-1 in various tissues of soybean (root, stem, leaf, flower, pod, early embryo and late embryo). Read More

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September 2018

ABA regulation of antioxidant activity during post-germination desiccation and subsequent rehydration in wheat.

Acta Biol Hung 2018 Sep;69(3):283-299

Department of Biochemistry, College of Basic Sciences & Humanities, Punjab Agricultural University , Ludhiana, 141004 , India.

ABA regulation of antioxidant activity during post-germination desiccation and subsequent rehydration was studied in two wheat cultivars PBW 644 (ABA-higher sensitive and drought tolerant) and PBW 343 (ABA-lesser sensitive and drought susceptible) where 1 d-germinated seeds were exposed to ABA/ PEG- 6000 for next 1 d, desiccated for 4 d and subsequently rehydrated for 4 d. Ascorbate, dehydrascorbate to ascorbate ratio, malondialdehyde (MDA), hydroxyl radicals, and activities of monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), alcohol dehydrogenase (AlcDH) and aldehyde dehydrogenase (AldDH) were measured in seedlings just before desiccation (2 d old), desiccated (6 d old) and rehydrated (10 d old) stages. ROS/NO signaling was studied under CT and ABA supply by supplying ROS and NO scavengers. Read More

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September 2018

Serotonergic regulation of the buccal (feeding) rhythm of the pond snail, Lymnaea stagnalis. An immunocytochemical, biochemical and pharmacological approach.

Acta Biol Hung 2018 Sep;69(3):225-243

2 Institute of Developmental Biology, Russian Academy of Sciences , Moscow 119334 , Russia.

Hatching is an important phase of the development of pulmonate gastropods followed by the adult-like extracapsular foraging life. Right before hatching the juveniles start to display a rhythmic radula movement, executed by the buccal complex, consisting of the buccal musculature (mass) and a pair of the buccal ganglia. In order to have a detailed insight into this process, we investigated the serotonergic regulation of the buccal (feeding) rhythm in 100% stage embryos of the pond snail, Lymnaea stagnalis, applying quantitative immunohistochemistry combined with the pharmacological manipulation of the serotonin (5-HT) synthesis, by either stimulating (by the 5-HT precursor 5-hydroxytryptophan, 5-HTP) or inhibiting (by the 5-HT synthesis blocker para-chlorophenylalanine, pCPA) it. Read More

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September 2018

Effects of the venom of the brown bullhead catfish (Ameiurus nebulosus) on isolated smooth muscles.

Acta Biol Hung 2018 Jun;69(2):135-143

2 Department of Pharmacognosy, Faculty of Pharmacy, University of Pécs , Rókus u. 2, H-7624 Pécs , Hungary.

Aqueous extract of the spines of the brown bullhead catfish (Ameiurus nebulosus Lesueur, 1819) caused contraction of the guinea-pig small intestine in vitro, a widely-used preparation in pharmacology. The action is dependent on extracellular Ca, and probably takes place on the smooth muscle cells. Mouse gastrointestinal preparations were also contracted by the extract. Read More

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Inhibition of the formation of amyloid-like fibrils using herbal extracts.

Acta Biol Hung 2018 Jun;69(2):125-134

3 Department of Biology, Pedagogical Faculty, Selye János University , Bratislavská cesta 3322, SK-94501 Komarno , Slovak Republic.

We tested the amyloid fibril formation inhibitory effect of seven teas diluted in 55% ethanol at pH 7.0 at a protein concentration of 0.15 mg/ml α-chymotrypsin. Read More

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Effect of capsaicin on the oxidative stress and dopamine content in the transgenic Drosophila model of Parkinson's disease.

Acta Biol Hung 2018 Jun;69(2):115-124

Drosophila Transgenic Laboratory, Section of Genetics, Department of Zoology, Aligarh Muslim University , Aligarh, Uttar Pradesh 202002 , India.

In the present study the effect of capsaicin was studied on PD model flies expressing human alpha synuclein. First the potential of scavenging superoxide anion and free radicals by capsaicin at doses of 20, 40, 80 and 100 μM was estimated. The PD flies were allowed to feed separately on the diet containg 20, 40, 80 and 100 μM of capsaicin, respectively, for 24 days. Read More

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24-epibrassinolide application enhances growth and biochemical aspects of squash under salt stress conditions.

Acta Biol Hung 2018 Jun;69(2):182-196

Department of Botany and Microbiology, Faculty of Science, Sohag University , 82524 Sohag , Egypt.

Brassinosteroids (BRs) are considered to possess protective activity in plants exposed to various stresses. The present study was conducted to evaluate the effects of 24-epibrassinolide (EBL) on salt stressed summer squash cv. Eskandrani seedlings, whether it can alleviate the deleterious effects of salt stress in growing seedlings or not. Read More

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Mycorrhiza-induced alleviation of plant disease caused by Clavibacter michiganensis subsp. michiganensis and role of ethylene in mycorrhiza-induced resistance in tomato.

Acta Biol Hung 2018 Jun;69(2):170-181

Institute of Genetics, Microbiology and Biotechnology, Szent István University , Páter Károly út 1, Gödöllő H-2100 , Hungary.

The protective role of arbuscular mycorrhizal fungi (AMF) against the phytopathogen Clavibacter michiganensis subsp. michiganensis (Cmm) was examined in tomato plants. Seven different AMF isolates were used to determine which ones were able to induce effectively resistance against Cmm. Read More

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Extractability of polyphenols from black currant, red currant and gooseberry and their antioxidant activity.

Acta Biol Hung 2018 Jun;69(2):156-169

1 Department of Pharmacognosy and Phytotherapy, University of Medicine and Pharmacy of Târgu Mureş , Gh. Marinescu nr. 38, 540139 Târgu Mureş , Romania.

In this study, we analyzed extracts of Ribes (black currant, red currant and gooseberry) fruits obtained with methanol, methanol 50% and water. For each extract total polyphenol content, total flavonoid content and total anthocyanin content was assessed. The antioxidant activity of extracts was evaluated by 1,1-Diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) radical scavenging capacity and by the photo-chemiluminescence (PCL) method. Read More

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Essential oil composition and in vitro antibacterial activity of Chenopodium album subsp. striatum.

Acta Biol Hung 2018 Jun;69(2):144-155

7 Phytochemistry Research Center, Shahid Beheshti University of Medicinal Sciences , Tehran , Iran.

The objective of this study was to identify the bioactive compounds of essential oil and evaluate the antibacterial activity of the essential oil extracted from Chenopodium album subsp. striatum against multidrug-resistant bacterial strains (MDR) which were isolated from clinical specimens by conventional methods. Furthermore, eight different Gram-negative and Gram-positive multidrug-resistant bacterial strains were used to investigate the antibacterial potential of the essential oil. Read More

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The effects of interspecific interactions between bloom forming cyanobacteria and Scenedesmus quadricauda (chlorophyta) on their photophysiology.

Acta Biol Hung 2018 Jun;69(2):210-223

Department of Hydrobotany, MTA Centre for Ecological Research, Balaton Limnological Institute , Klebelsberg Kuno u. 3, H-8237 Tihany , Hungary.

Eutrophication and enhanced external nutrient loading of lakes and seas are most clearly reflected by increased cyanobacterial blooms, which are often toxic. Freshwater cyanobacteria produce a number of bioactive secondary metabolites, some of which have allelopathic properties, significantly influencing the biological processes of other algae, thereby affecting species composition and succession of the phytoplankton. The goal of this work was to investigate the influence of bloom-forming cyanobacterial exudates on the photophysiology of the green alga Scenedesmus quadricauda by chlorophyll fluorescence analysis. Read More

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Sunflower seedlings hyperaccumulate Selenium.

Acta Biol Hung 2018 Jun;69(2):197-209

2 Faculty of Agricultural and Food Sciences and Environmental Management, Institute of Crop Sciences, Department of Agricultural Botany, Crop Physiology and Biotechnology, University of Debrecen , H-4032 Debrecen Böszörményi út 138 , Hungary.

Selenium (Se) is an essential element for animals and humans, but not plants. However, the capacity of some plants to accumulate and transform Se into bioactive compounds has important implications for human nutrition and health. In this study, sunflower (Helianthus annuus) and maize (Zea mays) seedlings were cultivated in soil to investigate the effect of different rates of sodium selenite (1-90 mg kg soil) and sodium selenate (1-30 mg kg soil) on absorption and translocation of Se and sulphur (S). Read More

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