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You searched for: Journal name Acta biologica Hungarica Remove constraint Journal name: Acta biologica Hungarica Publication Year 2017 Remove constraint Publication Year: 2017
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1. Alpha-tocopherol-dependent salt tolerance is more related with auxin synthesis rather than enhancement antioxidant defense in soybean roots

Author:
Seda Sereflioglu; Burcu Seckin Dinler; Eda Tasci
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 115-125
ISSN:
1588-256X
Subject:
alpha-tocopherol; antioxidant activity; ascorbate peroxidase; enzyme activity; hydrogen peroxide; indole acetic acid; isozymes; leaves; malondialdehyde; peroxidase; proline; roots; salinity; salt stress; salt tolerance; soybeans; superoxide anion; superoxide dismutase
Abstract:
... In this paper, we describe the alleviated effects of alpha-tocopherol (α-T) on oxidative damage and its possible role as a signal transmitter in plants during salt stress. The results show that exogenously applied α-T under salt stress increased root length and weight, but reduced hydrogen peroxide (H ₂O ₂), superoxide anion radical (O ₂.—) and malondialdehyde (MDA) content in soybean roots. The p ...
DOI:
10.1556/018.68.2017.1.10

2. Chemical composition and antimicrobial activity of the commercial Origanum onites L. oil against nosocomial carbapenem resistant extended spectrum beta lactamase producer Escherichia coli isolates

Author:
Banu Kaskatepe; Serap Suzuk Yildiz; Merve Eylul Kiymaci; Ayse Nur Yazgan; Salih Cesur; Sinem Aslan Erdem
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 466-476
ISSN:
1588-256X
Subject:
Escherichia coli; Origanum onites; antibiotic resistance; antimicrobial properties; bacteria; carbapenems; carvacrol; chemical composition; cross infection; drugs; enzymes; essential oils; gamma-terpinene; gas chromatography-mass spectrometry; humans; linalool; microbial growth; multiple drug resistance; p-cymene; toxicity; yeasts
Abstract:
... In recent years rapidly growing antibiotic resistance has increased interest toward natural products, especially essential oils because of their various effects. The aim of this study was to identify the chemical composition of the commercial Origanum onites essential oil (EO) and to investigate the antimicrobial activity by disc diffusion and dilution methods, against ten different ATCC strains, ...
DOI:
10.1556/018.68.2017.4.11

3. Comparison of the production and chemical constituents of five Perilla frutescens (L.) Britt. accessions

Author:
Péter Radácsi; Szilvia Sárosi; Lotti Ágnes Szomor; Éva Németh-Zámbori
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 453-465
ISSN:
1588-256X
Subject:
Elsholtzia; Perilla frutescens; antioxidant activity; biomass production; chemotypes; essential oils; field experimentation; leaves; lipid content; stems; trichomes; Hungary
Abstract:
... An open field experiment was carried out with five purple Perilla frutescens accessions (588P, GB, J3, JTD3, PS3) in 2014 and 2015. Morphological traits, production, total phenolic content (TPC), essential oil content (EOC) and composition as well as the antioxidant capacity (AOC) were investigated. Highest biomass was produced by JTD3 in both years. The antioxidant capacity and total phenolic con ...
DOI:
10.1556/018.68.2017.4.10

4. Electro-antennographic response of Helopeltis theivora to synthetic pesticides used in tea plantations

Author:
Kokkadan K. Srikumar; Sukumaran Smitha; Bastian S. Kumar; Balakrishnan Radhakrishnan
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 358-367
ISSN:
1588-256X
Subject:
Helopeltis theivora; bifenthrin; deltamethrin; insects; pests; plantations; quinalphos; tea; thiamethoxam
Abstract:
... Helopeltis theivora is considered as one of the major pest in tea plantations causing considerable economic damage. Recent control strategies against this notorious polyphagous pest mainly depend on the application of insecticides. The study is focused on the antennal response of H. theivora on exposure to different insecticides using electroantenogram (EAG). The result showed that the insects per ...
DOI:
10.1556/018.68.2017.4.2

5. Evaluation of antiproliferative and hepatoprotective effects of wheat grass (Triticum aestivum)

Author:
Anand Rajoria; Archana Mehta; Pradeep Mehta; Laxmi Ahirwal; Shruti Shukla; Vivek K. Bajpai
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 150-161
ISSN:
1588-256X
Subject:
Triticum aestivum; apoptosis; bilirubin; carotenes; chloroform; chlorophyll; cytotoxicity; enzymes; grasses; hepatoma; hepatoprotective effect; hexane; humans; methanol; protein content; shoots; wheat
Abstract:
... This study was aimed to evaluate the pharmacological potential of various extracts (hexane, chloroform, methanol and aqueous) of dried shoots of Triticum aestivum (wheat grass) in terms of antiproliferative and hepatoprotective potential of T. aestivum . The total chlorophyll content in dried shoots of T. aestivum was 0.54 ± 0.016 g/L (chlorophyll-a: 0.288 ± 0.05 g/L; and chlorophyll-b; 0.305 ± 0. ...
DOI:
10.1556/018.68.2017.2.3

6. Fine structure and synaptology of the nitrergic neurons in medial septum of the rat brain

Author:
Katalin Halasy; Balázs Szőke; Gergely Janzsó
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 1-13
ISSN:
1588-256X
Subject:
NAD(P)H dehydrogenase (quinone); NADP (coenzyme); brain; electron microscopy; enkephalin; gamma-aminobutyric acid; immunohistochemistry; leucine; neuronal nitric oxide synthase; neurons; rats; staining; synapse
Abstract:
... The nitrergic neuron population and certain aspects of their connectivity (peptidergic inputs, co-localization with GABA, synaptic target distribution) were studied in the medial septum of the rat brain. The histochemical localization of NADPH diaphorase and immunohistochemical identification of nNOS at light and electron microscopic level was applied. Double-labeling experiments with galanin and ...
DOI:
10.1556/018.68.2017.1.1

7. HPLC method for measurement of human salivary α-amylase inhibition by aqueous plant extracts

Author:
István Takács; Ákos Takács; Anikó Pósa; Gyöngyi Gyémánt
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 127-136
ISSN:
1588-256X
Subject:
Camellia sinensis; Cinnamomum verum; Laurus nobilis; Ribes nigrum; Syzygium aromaticum; Vaccinium macrocarpon; alpha-amylase; bark; bioactive properties; freeze drying; glucose; herbs; humans; hydrolysis; hyperglycemia; hypoglycemic agents; inhibitory concentration 50; leaves; noninsulin-dependent diabetes mellitus; obesity; plant extracts; polysaccharides; reversed-phase high performance liquid chromatography
Abstract:
... Control of hyperglycemia is an important treatment in metabolic disorders such as type II diabetes and obesity. α-Amylase, as the first enzyme of glucose release from dietary polysaccharides, is a potential target to identify new sources of novel anti-obesity and anti-diabetic drugs. In this work, different herbal extracts as α-amylase inhibitors were studied by measuring the rate of the cleavage ...
DOI:
10.1556/018.68.2017.2.1

8. How arbuscular mycorrhizal fungi influence the defense system of sunflower during different abiotic stresses

Author:
Zoltán Mayer; Nguyen Hong Duc; Zita Sasvári; Katalin Posta
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 376-387
ISSN:
1588-256X
Subject:
Helianthus annuus; abiotic stress; catechol oxidase; defense mechanisms; energy; enzyme activity; genes; glutathione transferase; mechanical stress; mycorrhizal fungi; peroxidase; plants (botany); polyphenols; temperature; vesicular arbuscular mycorrhizae
Abstract:
... The association between terrestrial plants and arbuscular mycorrhizal (AM) fungi is one of the most common and widespread mutualistic plant-fungi interaction. AM fungi are of beneficial effects on the water and nutrient uptake of plants and increase plant defense mechanisms to alleviate different stresses. The aim of this study was to determine the level of polyphenol oxidase (PPO), guaiacol perox ...
DOI:
10.1556/018.68.2017.4.4

9. Hydrogen peroxide induced oxidative damage on mechanical properties of the articular cartilage

Author:
Ekrem Cicek
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 368-375
ISSN:
1588-256X
Subject:
cartilage; cattle; hydrogen peroxide; mechanical properties; mechanical testing; physicochemical properties
Abstract:
... Articular cartilage has unique mechanical and physicochemical properties which are responsible for its load carrying capabilities. This work investigates the effects of hydrogen peroxide induced oxidative damage on mechanical properties of articular cartilage. Bovine articular cartilage was exposed to hydrogen peroxide for a week. Dynamic and static mechanical tests applied to calculate articular ...
DOI:
10.1556/018.68.2017.4.3

10. Hydrogen peroxide prolongs mitotic arrest in a dose dependent manner and independently of the spindle assembly checkpoint activity in Saccharomyces cerevisiae

Author:
Pinar Buket Atalay; Oyku Asci; Fatih Oner Kaya; Bilge Guvenc Tuna
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 477-489
ISSN:
1588-256X
Subject:
Saccharomyces cerevisiae; aneuploidy; chromosome segregation; chromosomes; dose response; hydrogen peroxide; mitosis; monitoring; mutants; neoplasm cells; neoplasms; oxidative stress; therapeutics
Abstract:
... Oxidative stress and chromosome missegregation are important factors that are linked to aneuploidy. A major reason for chromosome missegragation is the inappropriate activity of the spindle assembly checkpoint (SAC), a conserved surveillance mechanism that monitors the state of kinetochore-microtubule attachments to ensure equal chromosome segregation in mitosis. SAC-activation induces a prolonged ...
DOI:
10.1556/018.68.2017.4.12

11. In silico characterisation of novel rice transcripts differentially expressed in phosphorus dificient conditions suggests a role of these transcripts in multiple abiotic stresses

Author:
Julia S. Yumnam; Mayank Rai; Wricha Tyagi
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 398-411
ISSN:
1588-256X
Subject:
DNA; F-box proteins; abiotic stress; cell walls; chloroplasts; gene expression regulation; genes; genotype; messenger RNA; microRNA; phosphorus; prediction; rice
Abstract:
... Phosphorus deficiency adversely affects crop productivity. The mechanism of tolerance in plants is not well understood. The current study successfully annotated a set of highly significant (Log₂ RPKM ≥3) nine novel sequences up-regulated in P deficient condition identified from a low P tolerant rice genotype. Sequence annotation identified two transcripts (Os01g37260 and Os02g11060) carrying known ...
DOI:
10.1556/018.68.2017.4.6

12. In vitro activity of calcium channel blockers in combination with conventional antifungal agents against clinically important filamentous fungi

Author:
Mónika Homa; Kinga Hegedűs; Ádám Fülöp; Vanessza Wolfárt; Shine Kadaikunnan; Jamal M. Khaled; Naiyf S. Alharbi; Csaba Vágvölgyi; László Galgóczy
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 334-344
ISSN:
1588-256X
Subject:
amphotericin B; antifungal properties; fungi; itraconazole; minimum inhibitory concentration; mortality; myocardial depressants; patients; synergism; verapamil
Abstract:
... Despite the current therapeutic options, filamentous fungal infections are associated with high mortality rate especially in immunocompromised patients. In order to find a new potential therapeutic approach, the in vitro inhibitory effect of two antiarrhythmic agents, diltiazem and verapamil hydrochloride were tested against different clinical isolates of ascomycetous and mucoralean filamentous fu ...
DOI:
10.1556/018.68.2017.3.10

13. In vivo screening of diterpene alkaloids using bdelloid rotifer assays

Author:
Tivadar Kiss; Lilla Mácsai; Dezső Csupor; Zsolt László Datki
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 443-452
ISSN:
1588-256X
Subject:
Rotifera; alkaloids; cardiovascular system; cell lines; chemistry; diterpenoids; in vivo studies; medicinal properties; neoplasm cells; nervous system; screening; toxicity
Abstract:
... The group of diterpene alkaloids contains numerous compounds with complex chemistry and diverse pharmacological activities. Beside toxicity, these compounds possess activity on the cardiovascular system, tumor cell lines and nervous system. The pharmacological properties have been described using in vitro and in vivo techniques; however, the bioactivities of many compounds have not thoroughly been ...
DOI:
10.1556/018.68.2017.4.9

14. Indoleacetic acid production and plant growth promoting potential of bacterial endophytes isolated from rice (Oryza sativa L.) seeds

Author:
Raheem Shahzad; Muhammad Waqas; Abdul Latif Khan; Khadija Al-Hosni; Sang-Mo Kang; Chang-Woo Seo; In-Jung Lee
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 175-186
ISSN:
1588-256X
Subject:
Enterobacter; Leclercia adecarboxylata; Micrococcus luteus; Oryza sativa; Pantoea dispersa; Staphylococcus epidermidis; biofertilizers; biomass; chlorophyll; endophytes; gas chromatography-mass spectrometry; growth traits; indole acetic acid; metabolites; phyllosphere; phylogeny; plant growth; rhizosphere; ribosomal RNA; rice; roots; seeds; shoots
Abstract:
... Bacterial endophytes from the phyllosphere and rhizosphere have been used to produce bioactive metabolites and to promote plant growth. However, little is known about the endophytes residing in seeds. This study aimed to isolate and identify seed-borne bacterial endophytes from rice and elucidate their potential for phytohormone production and growth enhancement. The isolated endophytes included M ...
DOI:
10.1556/018.68.2017.2.5

15. Isolation and quantitative analysis of physalin D in the fruit and calyx of Physalis alkekengi L.

Author:
Eszter Laczkó-Zöld; Péter Forgó; István Zupkó; Eşianu Sigrid; Judit Hohmann
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 300-309
ISSN:
1588-256X
Subject:
Physalis alkekengi; calyx; cell lines; fruits; high performance liquid chromatography; methanol; neoplasms; nuclear magnetic resonance spectroscopy; quantitative analysis; spectral analysis
Abstract:
... Physalin D was isolated from the methanol extract of Physalis alkekengi L. fruits by combination of different chromatographic methods (CPC, TLC, HPLC). The structure was elucidated based on ¹H and ¹³C NMR spectral analysis with the aid of 2D-correlation spectroscopy (¹H, ¹H-COSY, HSQC and HMBC) and comparison with literature data. The quantity of physalin D in mature and immature fruits and calyce ...
DOI:
10.1556/018.68.2017.3.7

16. Morphometric characteristics and COI haplotype diversity of Arctodiaptomus spinosus (Copedoda) populations in soda pans in Hungary

Author:
László Forró; Judit Nédli; Enikő Csata; Virág Krízsik; Csilla Balogh; László G.-Tóth
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 279-289
ISSN:
1588-256X
Subject:
animals; biogeography; haplotypes; models; morphometry; population growth; salt lakes; zooplankton; Armenia; Hungary; Iran; Turkey (country); Ukraine
Abstract:
... Arctodiaptomus spinosus (Daday, 1891) is a characteristic species of the soda pan zooplankton in the Great Hungarian Plain. The biogeographical distribution of the species is interesting, since its range expands from the Pannonian Biogeographic region to the other side of the Carpathians, occurring in saline lakes in Eastern Anatolia, Armenia, Iran and in temporary waters in Ukraine. Our investiga ...
DOI:
10.1556/018.68.2017.3.5

17. Physico-chemical changes in karkade (Hibiscus sabdariffa L.) seedlings responding to salt stress

Author:
Abdelnasser Galal
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 73-87
ISSN:
1588-256X
Subject:
Hibiscus sabdariffa; biosynthesis; carotenoids; chlorophyll; chloroplasts; dry matter content; germination; ions; leaf area; lipid peroxidation; molecular weight; osmotic pressure; peroxidase; pigments; polyacrylamide gel electrophoresis; potassium; proline; protective effect; proteins; salinity; salt stress; seedling growth; seedlings; sodium; sodium chloride; vegetative growth
Abstract:
... Salinity is one of the major abiotic stress factors affecting series of morphological, physiological, metabolic and molecular changes in plant growth. The effect of different concentrations (0, 25, 50, 100 and 150 mM) of NaCl on the vegetative growth and some physiological parameters of karkade (Hibiscus sabdariffa var. sabdariffa) seedling were investigated. NaCl affected the germination rate, de ...
DOI:
10.1556/018.68.2017.1.7

18. Physiological role of exogenous nitric oxide in improving performance, yield and some biochemical aspects of sunflower plant under zinc stress

Author:
Samia Ageeb Akladious; Heba Ibrahim Mohamed
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 101-114
ISSN:
1588-256X
Subject:
Helianthus annuus; antioxidants; ascorbic acid; enzyme activity; glutathione; glutathione peroxidase; glutathione-disulfide reductase; nitric oxide; nitroprusside; oils; photosynthesis; pigments; plant growth; roots; saturated fatty acids; seed yield; shoots; single nucleotide polymorphism; soil; superoxide dismutase; toxicity; unsaturated fatty acids; yield components; zinc
Abstract:
... The present study was undertaken to examine the possible roles of sodium nitroprusside in protection against oxidative damage due to zinc toxicity in sunflower plants. Physiochemical parameters in sunflower plants exposed to Zn ²⁺ (100, 200 and 300 mg/kg soil) alone or combined with SNP were measured. The results showed that excess of Zn decreased plant growth, seed yield components and photosynth ...
DOI:
10.1556/018.68.2017.1.9

19. Salinity tolerance of grafted watermelon seedlings

Author:
Viktória Bőhm; Dávid Fekete; Gábor Balázs; László Gáspár; Noémi Kappel
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 412-427
ISSN:
1588-256X
Subject:
Cucurbita maxima; Cucurbita moschata; Lagenaria siceraria; grafting (plants); irrigation; leaf area; leaves; photosynthesis; phytomass; rootstocks; salinity; salt stress; salt tolerance; seedlings; sodium; sodium chloride; squashes; stress tolerance; transpiration; watermelons
Abstract:
... In order to evaluate the salinity tolerance of grafted watermelon, two sets of experiments were conducted in a growing chamber where ‘Esmeralda’ varieties were grafted onto interspecific squash (Cucurbita maxima Duch. × Cucurbita moschata Duch.) and Lagenaria siceraria rootstocks. Both non-grafted and self-garfted plants were used for control. For salt stress, 2.85 and 4.28 mM/l substrate doses of ...
DOI:
10.1556/018.68.2017.4.7

20. Viability of SH-SY5Y cells is associated with purinergic P2 receptor expression alterations

Author:
Arda Örçen; Vuslat Yilmaz; Murat Giriş; Uğur Akcan; Erdem Tüzün; Gaye Erten
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 22-34
ISSN:
1588-256X
Subject:
Western blotting; antagonists; brain; cell death; cell viability; flow cytometry; gene expression regulation; humans; messenger RNA; mice; quantitative polymerase chain reaction; receptors; suramin
Abstract:
... To investigate the role of metabotrophic purinergic P2Y receptors in neuroblastoma cell survival, expression of P2 receptors by normal mouse (C57BL/6) brain and human neuroblastoma SH-SY5Y cells was investigated by Western blot and real time PCR studies. Viability of SH-SY5Y cells treated with purinergic receptor antagonists suramin and pyridoxal-phosphate-6-azophenyl-2′,4′-disulfonate (PPADS) was ...
DOI:
10.1556/018.68.2017.1.3

21. The chemical inducer, BTH (benzothiadiazole) and root colonization by mycorrhizal fungi (Glomus spp.) trigger resistance against white rot (Sclerotinia sclerotiorum) in sunflower

Author:
Rita Bán; Gellért Baglyas; Ferenc Virányi; Balázs Barna; Katalin Posta; József Kiss; Katalin Körösi
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 50-59
ISSN:
1588-256X
Subject:
Glomus; Helianthus annuus; Sclerotinia sclerotiorum; additive effect; disease severity; genotype; histology; host plants; hybrids; hyphae; induced resistance; mycorrhizae; mycorrhizal fungi; pathogens; plant diseases and disorders
Abstract:
... White rot caused by Sclerotinia sclerotiorum (SS) is one of the most devastating plant diseases of sunflower. Controlling this pathogen by available tools hardly result in acceptable control. The aim of this study was to elucidate the effects of plant resistance inducers, BTH (benzothiadiazole in Bion 50 WG) and arbuscular mycorrhizal fungi (AMF) on disease development of white rot in three sunflo ...
DOI:
10.1556/018.68.2017.1.5

22. Acetaldehyde suppresses growth, changes conidia morphology and reduces the production of adenosine 3’,5’-cyclic monophosphate in a dose dependent manner in Alternaria alternata

Author:
Mivuyo S. Mbovane; Venkata S. R. Gangireddygari; Hlengilizwe Nyoni; Khayalethu Ntushelo
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 490-492
ISSN:
1588-256X
Subject:
Alternaria alternata; acetaldehyde; adenosine; conidia; dose response; fungal growth; plant pathogenic fungi
Abstract:
... One-day-old cultures of the plant pathogenic fungus Alternaria alternata were exposed to 0%, 5% and 10% acetaldehyde mixed with distilled water. Fungal growth data showed that, overall, the 5% and the 10% acetaldehyde treatments significantly inhibited the growth of A. alternata, and that acetyldehyde also facilitated maturity and multicellularity of fungal conidia. The increase of the acetyldehyd ...
DOI:
10.1556/018.68.2017.4.13

23. Anti-mutagenic potential of algal extracts on chromosomal aberrations in Allium cepa L.

Author:
Hoda Anwer Mansour; Hala Mahfouz; Nesma Maher
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 137-149
ISSN:
1588-256X
Subject:
2,2-diphenyl-1-picrylhydrazyl; Allium cepa; Dictyopteris; Laurencia obtusa; Polysiphonia; antioxidants; carotenoids; chlorophyll; chromosome aberrations; dose response; fucose; galactose; genotoxicity; hydroquinone; macroalgae; mannitol; methanol; mitosis; mutagens; photosynthesis; pigments; polyphenols; polysaccharides; screening; sodium azide; xylose
Abstract:
... In the present study, sodium azide (SA) toxicity and the anti-mutagenic effects of different algal extracts at 0.1% and 0.2% concentrations were studied on the mitotic index (MI), chromosomal and nuclear aberrations using Allium cepa L. root assay. Moreover, phytochemical screening of photosynthetic pigments, antioxidants compounds, total antioxidant, DPPH scavenging activity, polysaccharides, and ...
DOI:
10.1556/018.68.2017.2.2

24. Biological changes of green pea (Pisum sativum L.) by selenium enrichment

Author:
Farzaneh Garousi; Béla Kovács; Éva Domokos-Szabolcsy; Szilvia Veres
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 60-72
ISSN:
1588-256X
Subject:
Pisum sativum; biofortification; chlorophyll; crop production; greenhouse experimentation; lipid peroxidation; magnesium; peas; phosphorus; photosystem II; protein sources; seeds; selenates; selenium; selenium fertilizers; sodium selenite; toxicity
Abstract:
... Supplement of common fertilizers with selenium (Se) for crop production will be an effective way to produce selenium-rich food and feed. The value of green pea seeds and forages as alternative protein source can be improved by using agronomic biofortification. Therefore, biological changes of green pea (Pisum sativum L.) and influences of inorganic forms of Se (sodium selenite and sodium selenate) ...
DOI:
10.1556/018.68.2017.1.6

25. Changes in expression of neuropeptides and their receptors in the hypothalamus and gastrointestinal tract of calorie restricted hens

Author:
Ádám Simon; János Oláh; István Komlósi; András Jávor; József Németh; Zoltán Szilvássy; Dóra Reglődi; Andrea Tamás; Levente Czeglédi
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 237-247
ISSN:
1588-256X
Subject:
feed intake; gene expression; genes; hens; hypothalamus; jejunum; low calorie diet; mammals; messenger RNA; neuropeptides; polypeptides; proventriculus; quantitative polymerase chain reaction; radioimmunoassays; receptors; restricted feeding
Abstract:
... The list of orexigenic and anorexigenic peptides, those are known to alter feed intake, is continuously growing. However, most of them are studied in mammalian species. We aimed to investigate plasma level and mRNA expression of the pituitary adenylate cyclase-activating polypeptide (PACAP), gene expression of its receptor (PAC1), furthermore the gene expression of galanin (GAL), neuromedin U (NMU ...
DOI:
10.1556/018.68.2017.3.1

26. Chemical composition and antifungal activity of Hedera helix leaf ethanolic extract

Author:
Oana Roşca-Casian; Cristina Mircea; Laurian Vlase; Ana-Maria Gheldiu; Delia Tania Teuca; Marcel Pârvu
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 196-207
ISSN:
1588-256X
Subject:
Aspergillus niger; Botrytis cinerea; Fusarium oxysporum; Hedera helix; Penicillium; Sclerotinia sclerotiorum; agar; antifungal properties; chemical analysis; chemical composition; ethanol; fluconazole; humans; hydrolysis; kaempferol; leaf extracts; leaves; minimum inhibitory concentration; ornamental plants; plant pathogenic fungi; polyphenols; quercetin; rutin; screening; stigmasterol; vegetables
Abstract:
... The 50% ethanol extract obtained from Hedera helix leaves was investigated regarding the presence and quantity of polyphenols, sterols and in vitro antifungal activity against phytopathogenic fungi. The chemical analysis revealed the presence of rutin, quercetin and kaempferol in the non-hydrolysed sample and quercetin and kaempferol in the hydrolysed sample and stigmasterol in the ivy leaf extrac ...
DOI:
10.1556/018.68.2017.2.7

27. Cinnamic acid and fish flour affect wheat phenolic acids and flavonoid compounds, lipid peroxidation, proline levels under salt stress

Author:
Bergüzar Karadağ; Nilgün Candan Yücel
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 388-397
ISSN:
1588-256X
Subject:
antioxidant activity; biosynthesis; cinnamic acid; fish; flavonoids; flour; lipid peroxidation; phenolic acids; proline; protective effect; salt stress; vigor; wheat
Abstract:
... To elucidate the physiological mechanism of salt stress mitigated by cinnamic acid (CA) and fish flour (FF) pretreatment, wheat was pretreated with 20, 50 and 100 ppm CA and 1 g/10 mL FF for 2 d and was then cultivated. We investigated whether exogenous CA + FF could protect wheat from salt stress and examined whether the protective effect was associated with the regulation of seed vigor, antioxid ...
DOI:
10.1556/018.68.2017.4.5

28. Diurnal variation of the melanin-concentrating hormone level in the hypothalamus

Author:
Balázs Gerics; Ferenc Szalay; Péter Sótonyi; Veronika Jancsik
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 14-21
ISSN:
1588-256X
Subject:
circadian rhythm; diurnal variation; food intake; gene expression; hypothalamus; neurons; neuropeptides; sleep
Abstract:
... Melanin-concentrating hormone (MCH), the neuropeptide produced mainly in the hypothalamus, plays an operative role in regulating food intake and the sleep/wake cycle. Considering that these physiological functions pursue diurnal variations, we checked whether the total hypothalamic MCH level depends on the time of the day. The aggregated MCH peptide content of the whole MCH neuron population was s ...
DOI:
10.1556/018.68.2017.1.2

29. Establishment of an efficient plant regeneration culture protocol and achievement of successful genetic transformation in Jatropha curcas L.

Author:
Ying Liu; Guoxuan Liu; Yali Yang; Sufang Niu; Fuguang Yang; Shaoxia Yang; Jianian Tang; Jianping Chen
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 428-442
ISSN:
1588-256X
Subject:
Agrobacterium radiobacter; Jatropha curcas; acclimation; buds; explants; genetic transformation; indole butyric acid; nitroprusside; petioles; plantlets; seedlings; shoots; transgenic plants
Abstract:
... An efficient and reproducible protocol is described for shoot-bud regeneration and Agrobacterium tumefaciens-mediated genetic transformation of J. curcas. Treating the explants with high concentrations (5–120 mg/L) of TDZ for short durations (5–80 min) before inoculation culture increased significantly the regeneration frequency and improved the quality of the regenerated buds. The highest shoot-b ...
DOI:
10.1556/018.68.2017.4.8

30. Examination of the effect of sodium nitrite on gap junction function during ischaemia and reperfusion in anaesthetized dogs

Author:
Gottfried Miskolczi; Márton Gönczi; Mária Kovács; Ágnes Végh
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 35-49
ISSN:
1588-256X
Subject:
sodium nitrite; ischemia; chloralose; nitric oxide; gap junctions; dogs; urethane; coronary vessels; arrhythmia
Abstract:
... It has previously been proved that sodium nitrite, infused prior to coronary artery occlusion or before reperfusion, results in marked antiarrhythmic effect in anaesthetized dogs. We have now examined whether this protection involves the modulation of gap junction (GJ) function by nitric oxide (NO), derived from nitrite administration under ischaemic conditions. Two groups of chloralose and uretha ...
DOI:
10.1556/018.68.2017.1.4

31. Exogenous ascorbic acid improves defence responses of sunflower (Helianthus annuus) exposed to multiple stresses

Author:
Armagan Kaya
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 290-299
ISSN:
1588-256X
Subject:
Helianthus annuus; antioxidants; ascorbic acid; carotenoids; chlorophyll; enzyme activity; glutathione; growth and development; malondialdehyde; pendimethalin; sodium chloride; stress response
Abstract:
... Ascorbic acid is an important antioxidant that plays role both on growth and development and also stress response of the plant. The purpose of this study was to determine the effect of ascorbate on physiological and biochemical changes of sunflower that was exposed to multiple stresses. Chlorophyll and carotenoid contents decreased and glutathione, ascorbate and malondialdehyde contents as well as ...
DOI:
10.1556/018.68.2017.3.6

32. Fusiform vateritic inclusions observed in European eel (Anguilla anguilla L.) sagittae

Author:
Zoltán Kern; Miklós Kázmér; Tamás Müller; András Specziár; Alexandra Németh; Tamás Váczi
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 267-278
ISSN:
1588-256X
Subject:
Anguilla anguilla; Raman spectroscopy; age structure; calcium carbonate; eel; lakes; metabolic diseases; otoliths; protein synthesis; scanning electron microscopes; vaterite; wild fish
Abstract:
... Microscopic inclusions have been observed in 7 out of 106 European eel (Anguilla anguilla L.) sagittae using polarizing microscope and scanning electron microscope meanwhile the annual increments were studied to characterize the age structure of the population living in Lake Balaton. The presence of vaterite, a rare calcium carbonate polymorph was observed in these inclusions using Raman spectrosc ...
DOI:
10.1556/018.68.2017.3.4

33. Histological and antimicrobial study of Ononis arvensis L.

Author:
Tünde Dénes; Sámuel Gergely Bartha; Mónika Kerényi; Erzsébet Varga; Viktória Lilla Balázs; Rita Csepregi; Nóra Papp
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 321-333
ISSN:
1588-256X
Subject:
Candida albicans; Escherichia coli; Ononis; Pseudomonas aeruginosa; Ricinus; Salmonella Typhimurium; Staphylococcus aureus; aerial parts; anti-infective agents; antifungal properties; bacteria; calyx; chemical constituents of plants; corolla; fungi; histology; minimum inhibitory concentration; petioles; pollen; sclerenchyma; solvents; stem form; stomata; trichomes
Abstract:
... In this study field restharrow (Ononis arvensis) was investigated for histological and antimicrobial features. The aerial part and the root were embedded in synthetic resin and investigated following sectioning by a rotation microtome. The antimicrobial activity and minimum inhibitory concentration of the solvent fractions of the aerial part were studied against four bacterial strains and one fung ...
DOI:
10.1556/018.68.2017.3.9

34. Hydrogen peroxide and nitric oxide regulation of phenolic metabolism under water stress and ABA in wheat

Author:
Rattanpreet Kaur; Vikramjit Kaur Zhawar
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 162-174
ISSN:
1588-256X
Subject:
abscisic acid; cell walls; cultivars; drought; drought tolerance; flavonoids; hydrogen peroxide; lignin; metabolism; nitric oxide; peroxidase; polyphenols; roots; water stress; wheat
Abstract:
... Wheat cultivar PBW644 (drought tolerant) and PBW343 (drought sensitive) were found as ABA-higher sensitive and ABA-lesser sensitive, respectively, in the screen of six wheat cultivars. Both cultivars were studied for H ₂O ₂ (ROS)/nitric oxide (NO)-regulation of growth and phenolic metabolism under ABA and water stress (WS) by supplying ROS/NO producers as well as scavengers. Endogenous ROS/NO unde ...
DOI:
10.1556/018.68.2017.2.4

35. Inhibitory effects of four neonicotinoid active ingredients on acetylcholine esterase activity

Author:
János Győri; Anna Farkas; Oksana Stolyar; András Székács; Mária Mörtl; Ágnes Vehovszky
Source:
Acta biologica Hungarica 2017 v.68 no.4 pp. 345-357
ISSN:
1588-256X
Subject:
acetamiprid; acetylcholinesterase; active ingredients; bee diseases; clothianidin; eel; enzyme activity; honey bees; inhibitory concentration 50; learning; neurons; pollinators; thiacloprid; thiamethoxam; toxicity
Abstract:
... There is a great concern about the decline of pollinators, and neonicotinoids emerging bee disorders are assumed to play a significant role. Since changes in learning ability has been observed in honey bees exposed to some acetylcholine esterase (AChE) inhibitors, we therefore, tested in vitro the effect of four neonicotinoids on purified eel AChE. AChE activity was inhibited in a concentration-de ...
DOI:
10.1556/018.68.2017.4.1

36. Isolation and preliminary characterization of a bacteriocin-producer Bacillus strain inhibiting methicillin resistant Staphylococcus aureus

Author:
Ankit Kumar Chauhan; Dinesh Kumar Maheshwari; Vivek K. Bajpai
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 208-219
ISSN:
1588-256X
Subject:
Bacillus cereus; Listeria monocytogenes; agar; antimicrobial properties; bacteria; bacteriocins; drug resistance; enzymes; heat; metabolites; methicillin-resistant Staphylococcus aureus; minimum inhibitory concentration; molecular weight; pH; pathogens; polyacrylamide gel electrophoresis; proteolysis; ribosomal DNA; screening; soil
Abstract:
... In a multivalent approach to discover new antimicrobial substance, a total of 160 Bacilli were isolated from termitarium soil, characterized on the basis of their morphological and physiological characters and screened for their antimicrobial activity by agar well diffusion method against certain drug resistant pathogenic bacteria such as Staphylococcus aureus , Methicillin resistant Staphylococcu ...
DOI:
10.1556/018.68.2017.2.8

37. Jasmonic and salicylic acids enhanced phytochemical production and biological activities in cell suspension cultures of spine gourd (Momordica dioica Roxb)

Author:
Ill-Min Chung; Kaliyaperumal Rekha; Govindasamy Rajakumar; Muthu Thiruvengadam
Source:
Acta biologica Hungarica 2017 v.68 no.1 pp. 88-100
ISSN:
1588-256X
Subject:
Momordica dioica; antioxidants; bioactive properties; biological production; biomass production; carotenoids; cell suspension culture; coumaric acids; elicitors; flavonols; jasmonic acid; phytopharmaceuticals; salicylic acid
Abstract:
... In vitro cell suspension culture was established for the production of commercially valuable phytochemicals in Momordica dioica . The influence of elicitors in jasmonic acid (JA) and salicylic acid (SA) increased their effect on phytochemical production and biomass accumulation in M. dioica . The results indicate that compared with non-elicited cultures, JA- and SA-elicited cell suspension culture ...
DOI:
10.1556/018.68.2017.1.8

38. Linalool-induced oxidative stress processes in the human pathogen Candida albicans

Author:
Gábor Máté; Dominika Kovács; Zoltán Gazdag; Miklós Pesti; Árpád Szántó
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 220-231
ISSN:
1588-256X
Subject:
Candida albicans; acute toxicity; animal pathogens; catalase; dose response; germ tube; glutathione; glutathione-disulfide reductase; linalool; lipids; oxidative stress; peroxides; superoxide dismutase; toxicity testing; virulence
Abstract:
... The present study investigated the linalool (Lol)-induced effects in acute toxicity tests in the human pathogen Candida albicans (C. albicans). Lol treatments induced reduced germ tube formation of the pathogen, which plays a crucial role in the virulence. In comparison with the untreated control, the exposure of 107 cells ml ⁻¹ to 0.7 mM or 1.4 mM Lol for one hour induced 20% and 30% decrements, ...
DOI:
10.1556/018.68.2017.2.9

39. Optimised selenium enrichment of Artemia sp. feed to improve red drum (Sciaenops ocellatus) larvae rearing

Author:
Péter Juhász; Szvetlana Lengyel; Zsolt Udvari; Alex Nagy Sándor; László Stündl
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 255-266
ISSN:
1588-256X
Subject:
Artemia; Rotifera; Sciaenops ocellatus; adverse effects; antioxidant activity; enzyme activity; fish feeds; fish larvae; foods; glutathione peroxidase; rearing; selenium; survival rate; toxicity; zooplankton
Abstract:
... Selenium is an essential microelement for the normal functioning of life processes. Moreover, it is a component of enzymes with antioxidant effects. However, it has the smallest window of any micronutrient between requirement and toxicity. Selenium is a regularly used element in fish feeds; moreover, enriching zooplankton with selenium to rear larvae is also a well-known technology. It is accepted ...
DOI:
10.1556/018.68.2017.3.3

40. Phytochemical investigation of Rumex thyrsiflorus Fingerh.

Author:
Orsolya Orbán-Gyapai; Peter Forgo; Judit Hohmann; Andrea Vasas
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 232-236
ISSN:
1588-256X
Subject:
Rumex thyrsiflorus; antibacterial properties; basins; beta-sitosterol; chloroform; ethyl acetate; methanol; procyanidins; roots; screening; xanthine oxidase
Abstract:
... In the course of our pharmacological screening of Polygonaceae species occurring in the Carpathian Basin the extracts prepared from the roots of Rumex thyrsiflorus showed promising antiproliferative, xanthine oxidase inhibitory and antibacterial activities. The present work deals with the isolation of compounds from the root of the plant. After multistep separation process, four compounds were obt ...
DOI:
10.1556/018.68.2017.2.10

41. Phytotoxic property of the invasive plant Tithonia diversifolia and a phytotoxic substance

Author:
Masahiko Suzuki; Arihiro Iwasaki; Kiyotake Suenaga; Hisashi Kato-Noguchi
Source:
Acta biologica Hungarica 2017 v.68 no.2 pp. 187-195
ISSN:
1588-256X
Subject:
Echinochloa crus-galli; Lolium multiflorum; Phleum pratense; Tithonia diversifolia; allelochemicals; allelopathy; chromatography; corn; cowpeas; crops; invasive species; leaves; lettuce; methanol; perennials; phytotoxicity; rice; spectral analysis; weeds; wild plants
Abstract:
... Tithonia diversifolia (Hermsl.) A. Gray is a perennial invasive plant and spreads quickly in the invasive areas. The extracts of T. diversifolia were found to be toxic to several crop plant species such as rice, maize, sorghum, lettuce and cowpea, and several putative allelopathic substances were identified. However, there is limited information available for the effects of T. diversifolia on wild ...
DOI:
10.1556/018.68.2017.2.6

42. Protective effect of thymoquinone against lead-induced antioxidant defense system alteration in rat liver

Author:
Aymen Mabrouk
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 248-254
ISSN:
1588-256X
Subject:
Nigella sativa; acetates; active ingredients; adults; antioxidant activity; antioxidants; catalase; drinking water; enzyme activity; glutathione; glutathione peroxidase; glutathione-disulfide reductase; hepatotoxicity; lead; liver; males; oils; protective effect; quinones; rats; seeds; superoxide dismutase
Abstract:
... Alteration of the antioxidant system may be related to lead (Pb) hepatotoxicity. This study was carried out to investigate the possible beneficial effect of thymoquinone (TQ), the major active ingredient of volatile oil of Nigella sativa seeds, against Pb-induced liver antioxidant defense system impairment. Adult male rats were randomized into four groups: control group received no treatment, Pb g ...
DOI:
10.1556/018.68.2017.3.2

43. Screening of some biological activities of Alyssum fulvescens var. fulvescens known as ege madwort

Author:
Cennet Ozay; Ramazan Mammadov
Source:
Acta biologica Hungarica 2017 v.68 no.3 pp. 310-320
ISSN:
1588-256X
Subject:
2,2-diphenyl-1-picrylhydrazyl; Artemia salina; Gram-negative bacteria; aerial parts; antioxidant activity; chlorogenic acid; cytotoxicity; flavonoids; high performance liquid chromatography; mortality; screening; Turkey (country)
Abstract:
... In this research, the phenolic composition, antioxidant, antibacterial and cytotoxic activities of the methanolic extracts obtained from Alyssum fulvescens var. fulvescens aerial parts known as Ege kuduzotu in western Turkey, were firstly investigated. The antioxidant activity of the extract was determined by DPPH, metal chelating, phosphomolybdenum, β-carotene/linoleic acid and ferric reducing po ...
DOI:
10.1556/018.68.2017.3.8