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  • Open Access

    ARTICLE

    Trichoderma spp. and Bacillus spp. as growth promoters in maize (Zea mays L.)

    López-Valenzuela BE1,2, Armenta-Bojórquez AD3, Hernández-Verdugo S4, Apodaca- Sánchez MA1, Samaniego-Gaxiola JA5, Valdez-Ortiz A6

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 37-46, 2019, DOI:10.32604/phyton.2019.04621

    Abstract Microbes that are beneficial to plants are used to enhance the crop growth, yield and are alternatives to chemical fertilizers. Trichoderma and Bacillus are the predominant plant growth-promoting fungi and bacteria. The objective of this study was select, characterize, and evaluate isolates of Trichoderma spp. and Bacillus spp. native from the northern region of Sinaloa, Mexico, and assess their effect on growth promotion in maize (Zea mays L.). In greenhouse conditions, four Trichoderma isolates and twenty Bacillus isolates, as well as two controls, were tested in a completely randomized design with three replicates. We selected… More >

  • Open Access

    ARTICLE

    Growth and production characters of elymus cylindricus in different shortening heading time

    Chengcheng Li1, Chan Zhou2, Yunfei Yang1

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 55-61, 2019, DOI:10.32604/phyton.2019.04577

    Abstract Ramet modules in a certain population differ in terms of functions, which accounts for different contributions of the same ramets. Shortening heading time brings about different contributions of such modules. Ramets heading one after another were treated as a continuum in respective cohorts of Elymus cylindricus aged two. The reproductive ramets that head earlier were marked with tags every four days during the whole heading stage from the beginning to the end, after which all the labeled ramets at the maturity period were gathered. The results showed that, the height and biomass of ramets, the… More >

  • Open Access

    ARTICLE

    Gene expression of 49 kDa apyrase, cytoskeletal proteins, ATPase, ADPase and amino acid contents of Pisum sativum (L.) cells germinated in Euryops arabicus (Steud. ex Jaub. & Spach) water extract

    Mahmoud MOUSTAFA1,2, Saad ALAMRI1, Hoida ZAKI2, Naglaa LOUTFY2, Tarek TAHA3, Ali SHATI1, Mohamed ALKAHTANI1, Sajda SIDDIQI1

    BIOCELL, Vol.43, No.2, pp. 81-88, 2019, DOI:10.32604/biocell.2019.06231

    Abstract The present research reports of quick and marked changes induced by plant extract of Euryops arabicus in the gene expression of 49-kDa apyrases, cytoskeletal proteins, ATPases, ADPase and amount of amino acid of pea (Pisum sativum L. var. Alaska). Pellets of cytoskeletals proteins (27000 xg) were probed with anti-apyrase antibody, biotinylated anti-rat, actin and alpha and beta-tubulin for Western blotting. ATPase and ADPase activities were determined based on the hydrolytic efficacy of adenine triphosphate and adenine diphosphate. By 72 hours, the abundance of apyrases, cytoskeletal proteins and amount of amino acid in pellets of 27000 xg… More >

  • Open Access

    ARTICLE

    Heterologous expression of bacteriocin E-760 in Chlamydomonas reinhardtii and functional analysis

    Quezada-Rivera JJ1, RE Soria-Guerra2, FS Pérez-Juárez2, L Martínez-González2, SE Valdés- Rodríguez3, NL Vasco-Méndez1, JF Morales-Domínguez1

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 25-35, 2019, DOI:10.32604/phyton.2019.04549

    Abstract The use of antimicrobial peptides (AMPs) synthesized by bacteria (bacteriocins) is an alternative for combating multidrug resistant bacterial strains and their production by recombinant route is a viable option for their mass production. The bacteriocin E-760 isolated from the genus Enterococcus sp. has been shown to possess inhibitory activity against Gram-negative and Gram-positive bacteria. In this study, the expression of a chimeric protein coding for E-760 in the nucleus of C. reinhardtii was evaluated, as well as, its antibacterial activity. The synthetic gene E-760S was inserted into the genome of C. reinhardtii using Agrobacterium tumefaciens.… More >

  • Open Access

    ARTICLE

    Mesenchymal stem cells are more effective than captopril in reverting cisplatin-induced nephropathy

    Entsar A. SAAD1, Reda S. EL-DEMERDASH2, Eman M. ABD EI-FATTAH1

    BIOCELL, Vol.43, No.2, pp. 73-80, 2019, DOI:10.32604/biocell.2019.07020

    Abstract Cisplatin is a powerful anticancer drug but its nephrotoxic effects limit its clinical use. We aimed to evaluate the effect of mesenchymal stem cells (MSCs) injection or of captopril to counteract the cisplatin-induction of nephropathy. MSCs isolation, preparation and tracking, transforming growth factor-β (TGF-β) and interleukin-10 (IL-10) expressions, kidney function tests, oxidative stress state, and histological examinations were done. Cisplatininduced nephropathy was indicated biochemically and confirmed histopathologically. MSCs treatment showed normal kidney architecture, and significantly decreased oxidative stress and TGF-β while increased IL-10 and improved kidney function tests. Rats treated with cisplatin + captopril More >

  • Open Access

    ARTICLE

    First report of Phytopythium vexans causing the “Avocado sadness” in Michoacan, Mexico

    Hernández Pérez A1, E Cerna Chávez2, JC Delgado Ortiz3, M Beltrán Beache4, LM Tapia Vargas5, YM Ochoa Fuentes2

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 11-13, 2019, DOI:10.32604/phyton.2019.04608

    Abstract Mexico is the main producer, consumer and exporter of avocado in the world, being Michoacan the main producer state contributing more than 80% of the national production. There are phytopathogens that decimate the production causing the death of the tree. Root samples were collected in avocado trees that showed the characteristic symptomatology of the disease known as avocado sadness, the sampling was carried out in four of the main avocado producing towns, in the state of Michoacan, Mexico. The isolation consisted in sowing root tissue in Petri dishes with V8®-PARPH culture medium, subsequently they were identified More >

  • Open Access

    REVIEW

    Active compounds of medicinal plants, mechanism for antioxidant and beneficial effects

    Orozco Montes F1, A Vázquez-Hernández2, B Fenton-Navarro1

    Phyton-International Journal of Experimental Botany, Vol.88, No.1, pp. 1-10, 2019, DOI:10.32604/phyton.2019.04525

    Abstract An increased interest in the antioxidant effects of medicinal plants has developed in recent years. Identifying antioxidant compounds present in medicinal plants and elucidating the mechanism by which they prevent oxidation have been the focus of the research community. We performed a systematic and exhaustive review aimed at analyzing the available data regarding the beneficial effects of secondary metabolites in plants. The result of this review is presented as a description of free radicals, as well as cellular and physiological oxidative stress, is provided. The origin and source of antioxidant compounds, and the cellular and More >

  • Open Access

    ARTICLE

    Prenatal exposure to the fluoride containing psychiatric drug fluoxetine and anti-oxidative alterations in the neonatal rat brain

    Ramesa Shafi BHAT1, Amina El GEZEERY2, Abir Ben BACHAN1, Mona Awad ALONAZI1, Leena Saleh ALSUHAIBANI1, Afaf El-ANSARY3,4

    BIOCELL, Vol.43, No.2, pp. 65-71, 2019, DOI:10.32604/biocell.2019.07012

    Abstract Fluoride is a key ingredient of many psychiatric drugs like fluoxetine (Prozac®, Fluoxetine®). Pregnant women frequently use this drug as they suffer from depression and anxiety disorders during this period. Fluoxetine is able to reach the fetus through the placenta and passes to the newborn through milk. In the present study, female Wistar rats were treated with 5, 10, and 20 mg/L fluoxetine (containing 94% fluorides) from pregnancy day 10 to day 20. After delivery, the levels of the enzymatic antioxidants in the brain of their offspring at postnatal day 2 were measured. The results More >

  • Open Access

    ARTICLE

    Non-Aligned Stagnation Point Flow of a Casson Fluid Past a Stretching Sheet in a Doubly Stratified Medium

    N. Vijaya1, G. Venkata Ramana Reddy1, *, Y. Hara Krishna1

    FDMP-Fluid Dynamics & Materials Processing, Vol.15, No.3, pp. 233-251, 2019, DOI:10.32604/fdmp.2019.03727

    Abstract This paper investigates the problem of oblique hydro magnetic stagnation point flow of an electrically conducting Casson fluid over stretching sheet embedded in a doubly stratified medium in the presence of thermal radiation and heat source/absorption with first order chemical reaction. It is assumed that the fluid impinges on the wall obliquely. Similarity variables were used to convert the partial differential equations to ordinary differential equations. The transformed ordinary differential equations are solved numerically using Runge-Kutta-Fehlberg method with shooting technique. It is observed that a boundary layer is formed when the stretching velocity of the… More >

  • Open Access

    ARTICLE

    Heat Absorption and Joule Heating Effects on Transient Free Convective Reactive Micropolar Fluid Flow Past a Vertical Porous Plate

    MD. Shamshuddin1, *, C. Balarama Krishna2

    FDMP-Fluid Dynamics & Materials Processing, Vol.15, No.3, pp. 207-231, 2019, DOI:10.32604/fdmp.2019.00449

    Abstract Mathematical model for an unsteady, incompressible, electrically conducting micropolar fluid past a vertical plate through porous medium with constant plate velocity has been investigated in the present study. Heat absorption, Joulian dissipation, and firstorder chemical reaction is also considered. Under the assumption of low Reynolds number, the governing transport equations are rendered into non-dimensional form and the transformed first order differential equations are solved by employing an efficient finite element method. Influence of various flow parameters on linear velocity, microrotation velocity, temperature, and concentration are presented graphically. The effects of heat absorption and chemical reaction More >

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