نتایج جستجو برای: and embryogenic callus

تعداد نتایج: 16828255  

2005
Rui Ma Seppo Pulli

Rye is an important crop in Northern and Eastern Europe. However, the application of various biotechnologies in rye breeding has been limited duo to its recalcitrant in tissue culture. In order to improve somatic tissue effi ciency, key factors affecting somatic embryogenesis and reproducible green plant regeneration of rye (Secale cereale L.) were evaluated and optimised. In this study, a tota...

2014
Stella A. G. D. Salvo Candice N. Hirsch C. Robin Buell Shawn M. Kaeppler Heidi F. Kaeppler

Embryogenic tissue culture systems are utilized in propagation and genetic engineering of crop plants, but applications are limited by genotype-dependent culture response. To date, few genes necessary for embryogenic callus formation have been identified or characterized. The goal of this research was to enhance our understanding of gene expression during maize embryogenic tissue culture initia...

2009
Nasser Zare Mostafa Valizadeh Masoud Tohidfar Seyed Abolghasem Mohammadi Mohammad Ali Malboobi Ali Akbar Habashi

The objectives of this work were to evaluate in vitro response of Iranian alfalfa cultivars and select high regenerative genotypes. Somatic embryogenesis response of leaf and petiole explants from five alfalfa cultivars and landraces was studied using six regeneration protocols. Cultivars and landraces exhibited protocol, and explant-specific response and somatic embryo formation occurred only ...

2007
Klaus-Thomas Haensch

This long-term study demonstrates for the first time that it is possible to propagate embryogenic cultures in pelargoniums and to subsequently initiate the differentiation of embryos using the cultivar Madame Layal (Pelargonium x domesticum). Propagation of callus was only possible with combinations of 2,4dichlorophenoxyacetic acid (2,4-D) and 6benzylaminopurine (BAP), which gave rise to embryo...

2017
Misbah Naz Faisal Hayat

The present study was carried out to build up an efficient protocol for various concentrations of 2, 4D for “Callus formation and somatic embryogenesis in sugarcane (Saccharum spp L.) using various concentrations of 2, 4-D and RAPD analysis of regenerated plants in the laboratory of Biotechnology Nuclear Institute of Agriculture, Tandojam during the year 2015 to 2016. Three sugarcane varieties ...

Journal: :Journal of experimental botany 2012
M Savona R Mattioli S Nigro G Falasca F Della Rovere P Costantino S De Vries B Ruffoni M Trovato M M Altamura

The genetic basis of stem cell specification in somatic embryogenesis and organogenesis is still obscure. SOMATIC EMBRYOGENESIS RECEPTOR-LIKE KINASE (SERK) genes are involved in embryogenesis and organogenesis in numerous species. In vitro culture of Cyclamen persicum immature ovules provides a system for investigating stem cell formation and maintenance, because lines forming either organs or ...

2015
Aarón Barraza José L. Cabrera-Ponce Roberto Gamboa-Becerra Francisco Luna-Martínez Robert Winkler Raúl Álvarez-Venegas

Common bean is the most important grain legume in the human diet. Bean improvement efforts have been focused on classical breeding techniques because bean is recalcitrant to both somatic embryogenesis and in vitro regeneration. This study was undertaken to better understand the process of somatic embryogenesis in the common bean. We focused on the mechanisms by which somatic embryogenesis in pl...

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