Home / Advanced Search

  • Title/Keywords

  • Author/Affliations

  • Journal

  • Article Type

  • Start Year

  • End Year

Update SearchingClear
  • Articles
  • Online
Search Results (184)
  • Open Access

    ARTICLE

    Alleviation of Drought Stress in Wheat Using Exogenous Ulva prolifera Extract Produced by Enzymatic Hydrolysis

    Feiyu Li1, Siqi Zuo1, Yongzhou Chi1, Chunying Du1, Zhaopeng Shen1, Xihong Han2,3, Xiaohui Wang2,*, Peng Wang1,*

    Journal of Renewable Materials, Vol.8, No.11, pp. 1519-1529, 2020, DOI:10.32604/jrm.2020.011453 - 28 September 2020

    Abstract Drought is one of the major abiotic stresses that affect plant growth and reduce agricultural productivity. Use of algal extract as a biostimulant is gaining increased attention from researchers. This study aimed to investigate the potential of Ulva prolifera extract (UE) as a biostimulant when enzymatically extracted under conditions of water deficit. UE treatments (0.02%, 0.06%, and 0.1%) significantly improved the shoot length, root length, and dry weight of roots after 120 h of drought stress relative to that in treatment with the negative control. An increase in catalase (CAT) and peroxidase (POD) activity was also More >

  • Open Access

    ARTICLE

    Differential Effects of Ammonium and Nitrate on Growth Performance of Glechoma longituba under Heterogeneous Cd Stress

    Yanwei Feng1, Wen Lei2, Rui Gu3, Ping Zhao4, Shijun Ni1,*, Ningfei Lei3,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 667-679, 2020, DOI:10.32604/phyton.2020.010160 - 22 June 2020

    Abstract Water, minerals, nutrients, etc., can be shared by physiological integration among inter-connected ramets of clonal plants. Nitrogen plays an important role in alleviating cadmium (Cd) stress for clonal plants. But how different forms of nitrogen affect growth performance of clonal plants subjected to heterogeneous Cd stress still remains poorly understood. A pot experiment was conducted to investigate the differential effects of ammonium and nitrate on growth performance of Glechoma longituba under heterogeneous Cd stress. In the experiment, parent ramets of Glechoma longituba clonal fragments were respectively supplied with modified Hoagland solution containing 7.5 mM ammonium, 7.5… More >

  • Open Access

    ARTICLE

    Salt-Induced Changes in Physio-Biochemical and Antioxidant Defense System in Mustard Genotypes

    Md. Shakhawat Hossain1, Md. Daud Hossain1, Abdul Hannan2, Mirza Hasanuzzaman3, Md. Motiar Rohman4,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 541-559, 2020, DOI:10.32604/phyton.2020.010279 - 22 June 2020

    Abstract Salinity stress is a major factor limiting plant growth and productivity of many crops including oilseed. The present study investigated the identification of salt tolerant mustard genotypes and better understanding the mechanism of salinity tolerance. Salt stresses significantly reduced relative water content (RWC), chlorophyll (Chl) content, K+ and K+ /Na+ ratio, photosynthetic rate (PN), transpiration rate (Tr), stomatal conductance (gs), intercellular CO2 concentration (Ci) and increased the levels of proline (Pro) and lipid peroxidation (MDA) contents, Na+ , superoxide (O2•− ) and hydrogen peroxide (H2O2) in both tolerant and sensitive mustard genotypes. The tolerant genotypes maintained higher Pro and lower MDA… More >

  • Open Access

    ARTICLE

    Enhancing Drought Tolerance in Wheat through Improving MorphoPhysiological and Antioxidants Activities of Plants by the Supplementation of Foliar Silicon

    Zahoor Ahmad1,*, Ejaz Ahmad Waraich2, Celaleddin Barutçular1, Akbar Hossain3, Murat Erman4, Fatih ÇIĞ4, Hany Gharib5, Ayman EL Sabagh4, 5, *

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 529-539, 2020, DOI:10.32604/phyton.2020.09143 - 22 June 2020

    Abstract The main objective of the research is to assess the role of foliar application of silicon (Si) for enhancing the survival ability of wheat under drought stress through improving its morphology, physicochemical and antioxidants activities. Treatments were five doses of Si at the rate of 2, 4, 6 and 8 mM and a control. After completion of seeds germination, pots were divided into four distinct groups at various field capacity (FC) levels, such as 100% FC (well-irrigated condition), 75% FC (slight water deficit), 50% FC (modest water deficit) and 25% FC (severe water deficit stress… More >

  • Open Access

    ARTICLE

    Trichoderma-Induced Improvement in Growth, Photosynthetic Pigments, Proline, and Glutathione Levels in Cucurbita pepo Seedlings under Salt Stress

    Mona H. Soliman1, Taghreed S. Alnusaire2, Nessreen F. Abdelbaky3,4, Aisha A. M. Alayafi5, Mirza Hasanuzzaman6,*, Mohamed M. Rowezak2, Mohamed El-Esawi7, Amr Elkelish8

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 473-486, 2020, DOI:10.32604/phyton.2020.08795 - 22 June 2020

    Abstract Salt stress is one of the major abiotic stress in plants. However, traditional approaches are not always efficient in conferring salt tolerance. Experiments were conducted to understand the role of Trichoderma spp. (T. harzianum and T. viride) in growth, chlorophyll (Chl) synthesis, and proline accumulation of C. pepo exposed to salinity stress. There were three salt stress (50, 100, and 150 mM NaCl) lavels and three different Trichoderma inoculation viz. T. harzianum, T. viride, and T. harzianum + T. viride. Salt stress significantly declined the growth in terms of the shoot and root lengths; however, it was improved by the inoculation of Trichoderma spp.… More >

  • Open Access

    ARTICLE

    Oxidative Stress Tolerance Mechanism in Rice under Salinity

    Mahmuda Binte Monsur1, Nasrin Akter Ivy1, M. Moynul Haque2, Mirza Hasanuzzaman3, Ayman EL Sabagh4,5,*, Md. Motiar Rohman6,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.3, pp. 497-517, 2020, DOI:10.32604/phyton.2020.09144 - 22 June 2020

    Abstract The research was conducted to investigate comparative oxidative damage including probable protective roles of antioxidant and glyoxalase systems in rice (Oryza sativa L.) seedlings under salinity stress. Seedlings of two rice genotypes: Pokkali (tolerant) and BRRI dhan28 (sensitive) were subjected to 8 dSm−1 salinity stress for seven days in a hydroponic system. We observed significant variation between Pokkali and BRRI dhan28 in phenotypic, biochemical and molecular level under salinity stress. Carotenoid content, ion homeostasis, antioxidant enzymes, ascorbate and glutathione redox system and proline accumulation may help Pokkali to develop defense system during salinity stress. However, the activity More >

  • Open Access

    ARTICLE

    Tentative Identification of Phytochemicals and Antioxidant Activities during Fruit-Ripening on Chamaedorea radicalis Mart.

    Gerardo Montelongo-Ruíz1, Yolanda del Rocio Moreno-Ramírez1, María Cruz Juárez-Aragón1, Nohemí Niño-García2, Reyna Ivonne Torres-Acosta2, Torres-Castillo Jorge Ariel1,*

    Phyton-International Journal of Experimental Botany, Vol.89, No.2, pp. 361-373, 2020, DOI:10.32604/phyton.2020.08499 - 22 April 2020

    Abstract This work aims to determine the phytochemical characterization of the pericarp of Chamaedorea radicalis Mart. fruit as a non-timber product with potential to obtain phytochemicals with potential applications in the industry. Fruit from C. radicalis were grouped in four ripening stages named as S1, S2, S3 and S4, according to maturity; S1 the most unripe stage and S4 the completely ripe stage. Determinations of total phenolic compounds, free radical scavenging activities and total flavonoid contents using spectrophotometric methods were done. Also, the tentative identification of phytochemicals during fruit ripening was done using UPLC-MS-MS. Total phenolic compound (TPC)… More >

  • Open Access

    ARTICLE

    Thyme oil and thymol abrogate doxorubicin-induced nephrotoxicity and cardiotoxicity in Wistar rats via repression of oxidative stress and enhancement of antioxidant defense mechanisms

    Osama M. AHMED1,*, Sanaa R. GALALY2, Mai RASLAN3, Mennah-Allah M. A. MOSTAFA1,*

    BIOCELL, Vol.44, No.1, pp. 41-53, 2020, DOI:10.32604/biocell.2020.08157 - 01 March 2020

    Abstract This study aimed to assess the preventive effects of thyme oil and thymol on doxorubicin (DOX)-induced renotoxicity, cardiotoxicity, and oxidative stress in Wistar rats. Thyme oil was subjected to GC-MS analysis, which indicated that thymol was the major constituent representing 33.896%. Rats intraperitoneally injected with DOX at a dose of 2 mg/kg b.w./one per week for 7 weeks were co-treated with thyme oil and its major constituent, thymol, at doses 250 and 100 mg/kg b.w./every other day, respectively, by oral gavage for the same period. Thyme oil and thymol markedly ameliorated the raised levels of… More >

  • Open Access

    ARTICLE

    Combinatory effect of hesperetin and mesenchymal stem cells on the deteriorated lipid profile, heart and kidney functions and antioxidant activity in STZ-induced diabetic rats

    Osama M. AHMED1, Mohamed A. HASSAN2, Ablaa S. SALEH2

    BIOCELL, Vol.44, No.1, pp. 27-29, 2020, DOI:10.32604/biocell.2020.08040 - 01 March 2020

    Abstract This study aimed to assess the effect of hesperetin and/or bone marrow-derived mesenchymal stem cells (BM-MSCs) on disturbed lipid profile, heart and kidney functions, oxidative stress and antioxidant defense system in streptozotocin (STZ)-induced diabetic rats. Type 1 diabetes mellitus (T1DM) was induced in male Wistar rats by injecting 40 mg/kg body weight (b.w.) STZ dissolved in citrate buffer (pH 4.5). The diabetic rats were treated with hesperetin orally administered at dose 20 mg/kg b.w., BM-MSCs intravenously injected at a dose of 1 x 106 cells/ rat/week and their combination for 6 weeks. The diabetic rats… More >

  • Open Access

    ARTICLE

    FCY-302, a Novel Small Molecule, Induces Apoptosis in Leukemia and Myeloma Cells by Attenuating Key Antioxidant and Mitochondrial Enzymes

    Prasanna Rajagopalan*†, Abdulrahim Hakami*†, Mohammed Ragab*, Ashraf Elbessoumy*‡

    Oncology Research, Vol.27, No.8, pp. 957-964, 2019, DOI:10.3727/096504019X15555428221646

    Abstract Arylidene analogs are well proven for biological activities. FCY-302, a novel small molecule belonging to this class, was screened for its biological efficacy in leukemia and myeloma cells. FCY-302 selectively inhibited proliferation of cancer cells with GI50 values of 395.2 nM, 514.6 Nm, and 642.4 nM in HL-60, Jurkat, and RPMI-8226 cells, respectively. The compound also increased sub-G0 peak in the cancer cell cycle and favored apoptosis determined by annexin V assay. The compound decreased the antiapoptotic Bcl-2 levels and increased proapoptotic Bax proteins in leukemia and myeloma cell lines. FCY-302 attenuated the mitochondrial membrane-bound Na+ More >

Displaying 151-160 on page 16 of 184. Per Page