نتایج جستجو برای: somaclonal variation

تعداد نتایج: 296663  

Journal: :Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas 2002
M Maraschin J A Sugui K V Wood C Bonham D F Buchi M P Cantao S G Carobrez P S Araujo M L Peixoto R Verpoorte J D Fontana

Cell cultures of Mandevilla velutina have proved to be an interesting production system for biomass and secondary metabolites able to inhibit the hypotensive activity of bradykinin, a nonapeptide generated in plasma during tissue trauma. The crude ethyl acetate extract of cultured cells contains about 31- to 79-fold more potent anti-bradykinin compounds (e.g., velutinol A) than that obtained wi...

2013
Mayra Rodríguez María C González Elizabeth Cristo Osvaldo Oliva Merardo Pujol Orlando Borrás-Hidalgo

Soil salinization causes negative effects on plant productivity and poses an increasingly serious threat to the sustainability of agriculture. Improving salt and drought tolerance is one of the most diffi cult tasks for cereal breeders. A breeding program using somaclonal variation through biotechnological techniques has been used in rice to improve drought and salinity tolerance for increasing...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2009
Li-Qin Li Chun-Hua Fu Chun-Fang Zhao Juan Xia Wen-Juan Wu Long-Jiang Yu

A simple, quick and efficient method for isolating total RNA from heavy browning cells was developed by adding polyvinylpyrrolidone, mercaptoethanol and 3 M NaAc during the process of the Trizol (a kind of a widely used RNA extraction buffer) method. High-quality total RNA was isolated and synthesized to cDNA. Transcript levels of four paclitaxel biosynthetic pathway genes: dxr, hmgr, ggpps and...

2008
Lucymeire Souza Morais-Lino Janay Almeida dos Santos-Serejo Sebastião de Oliveira e Silva José Raniere Ferreira de Santana Adilson Kenji Kobayashi

The objective of this study was to establish cell suspension culture and plant regeneration via somatic embryogenesis of a Brazilian plantain, cultivar Terra Maranhão, AAB. Immature male fl owers were used as explant source for generating highly embryogenic cultures 45 days after inoculation, which were used for establishment of cell suspension culture and multiplication of secondary somatic em...

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