نتایج جستجو برای: explants

تعداد نتایج: 7790  

2013
Karina Basso Fernando Gomes Ana Paula Loureiro Bracarense

Fusariotoxins such as fumonisin B1 (FB1) and deoxynivalenol (DON) cause deleterious effects on the intestine of pigs. The aim of this study was to evaluate the effect of these mycotoxins, alone and in combination, on jejunal explants from piglets, using histological, immunohistochemical and ultrastructural assays. Five 24-day old pigs were used for sampling the explants. Forty-eight explants we...

2016
Xiaolu Chen Dongliang Li Junjie Zhang Qingling Li Yuesheng Yang Hong Wu

The plant growth regulator diethyl aminoethyl hexanoate (DA-6) has proved highly effective on micropropagation of the medicinal plant purple coneflower (Echinacea purpurea (L.) Moench), however, sharp variation of the effects existed among explants in the same treatment, making the application of DA-6 in micropropagation difficult. In order to clarify factors that influencing the treating resul...

Journal: :Investigative ophthalmology & visual science 1987
B Ebato J Friend R A Thoft

Past attempts to grow human corneal epithelium in culture had limited success, with confluence rarely attained. This work is to determine whether different areas of human corneal epithelium grow better in tissue culture. We compared the extent, the mitotic rates, and morphology of outgrowths and histology of explants from central and peripheral human corneas in culture. Explants, 2 mm in diamet...

2013
Shastri P. Shukla G. Padmaja

An efficient regeneration protocol was developed from shoot tip and nodal explants of Simarouba glauca DC, a promising biodiesel plant. Nodal explants appeared to have better regeneration capacity than shoot tip explants (40%) in the tested media. The highest regeneration frequency (90%) and shoot number (7.00 ± 1.00 shoots per explants) were obtained in nodal explants in Murashige and Skoog’s ...

The aim of present study was to investigate the effect of explants types, in light and darkness condition on propagation of lateral plantlets and also to investigate the effect of type and concentrations of carbohydrates on the regeneration of Catasetum orchid plantlets in two experiments. First experiment for propagation of lateral plantlets was done with two types of explants, shoot tips and ...

Journal: :علوم گیاهان زراعی ایران 0
لیلی هنرمند دانش آموخته کارشناسی ارشد اصلاح نباتات، دانشگاه محقق اردبیلی ناصر زارع دانشیار، گروه زراعت و اصلاح نباتات، دانشگاه محقق اردبیلی، اردبیل رسول اصغری زکریا دانشیار، گروه زراعت و اصلاح نباتات، دانشگاه محقق اردبیلی، اردبیل پریسا شیخ زاده مصدق استادیار، گروه زراعت و اصلاح نباتات، دانشگاه محقق اردبیلی، اردبیل

the growing demand for animal products has made importance of the utilization of biotechnological techniques in improvement of forage crops such as sainfoin. in this research, the effects of different levels of auxin (naa and iba) and cytokinin (bap, zeatin and tdz) on in vitro growth response of shoot apex explants of shahrkord and khansar cultivars of sainfoin were investigated. for this, sho...

2013
Keitaro Oki Yoshiki Miyata Arata Shimada Terumasa Nagase Yoshiya Katsura Hiroshi Kosano

PURPOSE We aimed to establish a novel screening system for identifying potential therapeutic agents for treating proliferative vitreoretinal diseases (PVDs). In this study, we focused on vitreous explants from chicken embryos and evaluated the usefulness of quantitatively analyzing the effects of potential candidates on cell-mediated vitreous contraction, which leads to blindness in PVDs. MET...

Journal: :Journal of animal science 1989
D J Jerry R K Stover R S Kensinger

A system was developed to quantitate prolactin-dependent responses in porcine mammary tissue obtained from pregnant gilts. Metabolic responses to prolactin (Prl) and cortisol (C) in the presence of varying doses of insulin (I) were examined in mammary explants cultured on the surface of the medium or submerged in medium, under an atmosphere of humidified air. Explants suspended on grids at the ...

2010
Jiehao Zhou Shikun He Ning Zhang Christine Spee Peng Zhou Stephen J. Ryan Ram Kannan David R. Hinton

We hypothesized that neutrophils and their secreted factors mediate breakdown of the integrity of the outer blood-retina-barrier by degrading the apical tight junctions of the retinal pigment epithelium (RPE). The effect of activated neutrophils or neutrophil cell lysate on apparent permeability of bovine RPE-Choroid explants was evaluated by measuring [3H] mannitol flux in a modified Ussing ch...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2001
M A Ibanez G Gu R B Simerly

Neural pathways between sexually dimorphic forebrain regions develop under the influence of sex steroid hormones during the perinatal period, but how these hormones specify precise sex-specific patterns of connectivity is unknown. A heterochronic coculture system was used to demonstrate that sex steroid hormones direct development of a sexually dimorphic limbic-hypothalamic neural pathway throu...

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