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

    Yildiztekin, Mahmut / Tuna, Atilla Levent / Kaya, Cengiz

    Acta biologica Hungarica. 2018 Sept., v. 69, no. 3

    2018  

    Abstract: 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 ...

    Abstract 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. Besides, the treatment of seaweed (SW) and humic acid (HA) improved vegetative growth in the plant at all concentration levels applied under salinity conditions. Leaf fresh and dry weight was increased by all SW and HA applications in salinity stressed plant compared to those of control. Furthermore, there was a significant improvement in antioxidant enzyme activity, such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) activities in the plant under salt stress and treated with SW and HA compounds. It suggests that seaweed and humic acid can enhance salt stress tolerance and leads to conservation of pepper plant against oxidative stress.
    Keywords Ascophyllum nodosum ; Capsicum annuum ; antioxidants ; catalase ; enzyme activity ; fruit yield ; humic acids ; leaves ; lipid peroxidation ; macroalgae ; oxidative stress ; pepper ; peroxidase ; plant extracts ; proline ; salinity ; salt stress ; stress tolerance ; superoxide dismutase ; vegetative growth
    Language English
    Dates of publication 2018-09
    Size p. 325-335.
    Publishing place Akadémiai Kiadó
    Document type Article
    ZDB-ID 803005-4
    ISSN 1588-256X ; 0001-5288 ; 0236-5383
    ISSN (online) 1588-256X
    ISSN 0001-5288 ; 0236-5383
    DOI 10.1556/018.68.2018.3.8
    Database NAL-Catalogue (AGRICOLA)

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    Zs.B 1927: Show issues Location:
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  2. Article: Physiological effects of the brown seaweed Ascophyllum nodosum) and humic substances on plant growth, enzyme activities of certain pepper plants grown under salt stress.

    Yildiztekin, Mahmut / Tuna, Atilla Levent / Kaya, Cengiz

    Acta biologica Hungarica

    2018  Volume 69, Issue 3, Page(s) 325–335

    Abstract: 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 ...

    Abstract 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. Besides, the treatment of seaweed (SW) and humic acid (HA) improved vegetative growth in the plant at all concentration levels applied under salinity conditions. Leaf fresh and dry weight was increased by all SW and HA applications in salinity stressed plant compared to those of control. Furthermore, there was a significant improvement in antioxidant enzyme activity, such as superoxide dismutase (SOD), peroxidase (POD), catalase (CAT) activities in the plant under salt stress and treated with SW and HA compounds. It suggests that seaweed and humic acid can enhance salt stress tolerance and leads to conservation of pepper plant against oxidative stress.
    MeSH term(s) Ascophyllum ; Capsicum/drug effects ; Capsicum/enzymology ; Capsicum/growth & development ; Gene Expression Regulation, Enzymologic/drug effects ; Gene Expression Regulation, Plant/drug effects ; Humic Substances ; Plant Proteins/genetics ; Plant Proteins/metabolism ; Sodium Chloride/toxicity
    Chemical Substances Humic Substances ; Plant Proteins ; Sodium Chloride (451W47IQ8X)
    Language English
    Publishing date 2018-09-19
    Publishing country Hungary
    Document type Journal Article
    ZDB-ID 803005-4
    ISSN 1588-256X ; 0236-5383 ; 0001-5288
    ISSN (online) 1588-256X
    ISSN 0236-5383 ; 0001-5288
    DOI 10.1556/018.68.2018.3.8
    Database MEDical Literature Analysis and Retrieval System OnLINE

    Full text online

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  3. Article ; Online: Green Synthesis of Silver Nanoparticles from

    Baran, Mehmet Fırat / Keskin, Cumali / Baran, Ayşe / Hatipoğlu, Abdulkerim / Yildiztekin, Mahmut / Küçükaydin, Selçuk / Kurt, Kadri / Hoşgören, Hülya / Sarker, Md Moklesur Rahman / Sufianov, Albert / Beylerli, Ozal / Khalilov, Rovshan / Eftekhari, Aziz

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 5

    Abstract: The present work deals with the green synthesis and characterization of silver nanoparticles (AgNPs) ... ...

    Abstract The present work deals with the green synthesis and characterization of silver nanoparticles (AgNPs) using
    MeSH term(s) Antioxidants/chemistry ; Staphylococcus aureus ; Cholinesterase Inhibitors/pharmacology ; Silver/chemistry ; Onions ; Metal Nanoparticles/chemistry ; Butyrylcholinesterase/pharmacology ; Acetylcholinesterase/pharmacology ; Anti-Bacterial Agents/pharmacology ; Plant Extracts/chemistry
    Chemical Substances Antioxidants ; Cholinesterase Inhibitors ; Silver (3M4G523W1G) ; Butyrylcholinesterase (EC 3.1.1.8) ; Acetylcholinesterase (EC 3.1.1.7) ; Anti-Bacterial Agents ; Plant Extracts
    Language English
    Publishing date 2023-03-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28052310
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: The Investigation of the Chemical Composition and Applicability of Gold Nanoparticles Synthesized with

    Baran, Mehmet Fırat / Keskin, Cumali / Baran, Ayşe / Eftekhari, Aziz / Omarova, Sabina / Khalilov, Rovshan / Adican, Mehmet Tevfik / Rosić, Gvozden / Selakovic, Dragica / Yıldıztekin, Mahmut / Kurt, Kadri / Aytuğ Ava, Canan / Atalar, Mehmet Nuri

    Molecules (Basel, Switzerland)

    2023  Volume 28, Issue 6

    Abstract: The current work's main objective was to determine the chemical composition ... ...

    Abstract The current work's main objective was to determine the chemical composition of
    MeSH term(s) Humans ; Gold/pharmacology ; Gold/chemistry ; Prunus dulcis ; Caco-2 Cells ; Tandem Mass Spectrometry ; Metal Nanoparticles/chemistry ; Anti-Infective Agents/pharmacology ; Anti-Infective Agents/chemistry ; Anti-Bacterial Agents/chemistry ; Antineoplastic Agents/pharmacology ; Antineoplastic Agents/chemistry ; Plant Extracts/pharmacology ; Plant Extracts/chemistry ; Green Chemistry Technology
    Chemical Substances Gold (7440-57-5) ; Anti-Infective Agents ; Anti-Bacterial Agents ; Antineoplastic Agents ; Plant Extracts
    Language English
    Publishing date 2023-03-07
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 1413402-0
    ISSN 1420-3049 ; 1431-5165 ; 1420-3049
    ISSN (online) 1420-3049
    ISSN 1431-5165 ; 1420-3049
    DOI 10.3390/molecules28062428
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Biosynthesis, characterization, and investigation of antimicrobial and cytotoxic activities of silver nanoparticles using

    Xu, Jiajun / Yıldıztekin, Mahmut / Han, Dayong / Keskin, Cumali / Baran, Ayşe / Baran, Mehmet Fırat / Eftekhari, Aziz / Ava, Canan Aytuğ / Kandemir, Sevgi İrtegün / Cebe, Deniz Bariş / Dağ, Beşir / Beilerli, Aferin / Khalilov, Rovshan

    Heliyon

    2023  Volume 9, Issue 8, Page(s) e19061

    Abstract: Metallic nanoparticle biosynthesis is thought to offer opportunities for a wide range of biological uses. The green process of turning biological waste into utilizable products gaining attention due to its economical and eco-friendly approach in recent ... ...

    Abstract Metallic nanoparticle biosynthesis is thought to offer opportunities for a wide range of biological uses. The green process of turning biological waste into utilizable products gaining attention due to its economical and eco-friendly approach in recent years. This study reported the ability of
    Language English
    Publishing date 2023-08-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 2835763-2
    ISSN 2405-8440
    ISSN 2405-8440
    DOI 10.1016/j.heliyon.2023.e19061
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article ; Online: Antioxidant, anticholinesterase and tyrosinase inhibition activities, and fatty acids of Crocus mathewii - A forgotten endemic angiosperm of Turkey.

    Yildiztekin, Fatma / Nadeem, Said / Erol, Ebru / Yildiztekin, Mahmut / Tuna, Atilla L / Ozturk, Mehmet

    Pharmaceutical biology

    2016  Volume 54, Issue 9, Page(s) 1557–1563

    Abstract: Context We report the first ever chemical/biochemical study on Crocus mathewii Kerndorff (Iridaceae) - a Turkish endemic angiosperm. This plant has never been explored for its phytochemistry and bioactivities. Objective This study explores C. mathewii ... ...

    Abstract Context We report the first ever chemical/biochemical study on Crocus mathewii Kerndorff (Iridaceae) - a Turkish endemic angiosperm. This plant has never been explored for its phytochemistry and bioactivities. Objective This study explores C. mathewii corm and aerial parts for the chemical and biological properties of hexane, ethyl acetate, methanol and water fractions of the extracts. Material and methods Plant material (20 g) was extracted by methanol (250 mL × 5, 3 days each) and fractioned into hexane, ethyl acetate, methanol and water. All fractions were subjected to β-carotene-linoleic acid, DPPH(·), ABTS(·)(+), CUPRAC, metal chelating and tyrosinase inhibition activities. Hexane fractions were submitted to GC-MS analysis. Results Ethyl acetate fractions showed excellent IC50 values in DPPH(·) (aerial 36.21 ± 0.76 and corm 33.87 ± 0.02 mg/L) and ABTS(·)(+) (aerial 33.01 ± 0.79 and bulb 27.87 ± 0.33 mg/L); higher than the IC50 of the standard α-tocopherol (DPPH 116.25 ± 1.97; ABTS 52.64 ± 0.37 mg/L), higher than BHA in DPPH (57.31 ± 0.25 mg/L), but slightly lower in ABTS (19.86 ± 2.73 mg/L). Methanol extract of aerial parts also showed higher activity than α-tocopherol in DPPH (85.56 ± 11.51 mg/L) but slightly less (72.90 ± 3.66 mg/L) than both the standards in ABTS. Linoleic (aerial 53.9%, corm 43.9%) and palmitic (aerial 22.2%, corm 18%) were found as the major fatty acids. Discussion and conclusion Some fractions of C. mathewii showed higher antioxidant activities than the standards. There is a need to explore more about this plant.
    MeSH term(s) Antioxidants/isolation & purification ; Antioxidants/pharmacology ; Benzothiazoles/chemistry ; Biphenyl Compounds/chemistry ; Chelating Agents/isolation & purification ; Chelating Agents/pharmacology ; Cholinesterase Inhibitors/isolation & purification ; Cholinesterase Inhibitors/pharmacology ; Crocus/chemistry ; Fatty Acids/isolation & purification ; Fatty Acids/pharmacology ; Gas Chromatography-Mass Spectrometry ; Linoleic Acid/isolation & purification ; Linoleic Acid/pharmacology ; Monophenol Monooxygenase/antagonists & inhibitors ; Monophenol Monooxygenase/metabolism ; Palmitic Acid/isolation & purification ; Palmitic Acid/pharmacology ; Phytotherapy ; Picrates/chemistry ; Plant Components, Aerial ; Plant Extracts/isolation & purification ; Plant Extracts/pharmacology ; Plants, Medicinal ; Solvents/chemistry ; Sulfonic Acids/chemistry ; Turkey
    Chemical Substances Antioxidants ; Benzothiazoles ; Biphenyl Compounds ; Chelating Agents ; Cholinesterase Inhibitors ; Fatty Acids ; Picrates ; Plant Extracts ; Solvents ; Sulfonic Acids ; 2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid (28752-68-3) ; Palmitic Acid (2V16EO95H1) ; Linoleic Acid (9KJL21T0QJ) ; 1,1-diphenyl-2-picrylhydrazyl (DFD3H4VGDH) ; Monophenol Monooxygenase (EC 1.14.18.1)
    Language English
    Publishing date 2016-09
    Publishing country England
    Document type Journal Article
    ZDB-ID 1440131-9
    ISSN 1744-5116 ; 1388-0209
    ISSN (online) 1744-5116
    ISSN 1388-0209
    DOI 10.3109/13880209.2015.1107746
    Database MEDical Literature Analysis and Retrieval System OnLINE

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