نتایج جستجو برای: callus

تعداد نتایج: 5408  

2014
Yongtai Yin Yuchi He Wei Liu Lu Gan Chunhua Fu Haibo Jia Maoteng Li

Capparis spinosa is one of the most important eremophytes among the medicinal plants, and continued destruction of these plants poses a major threat to species survival. The development of methods to extract compounds, especially those of medicinal value, without harvesting the whole plant is an issue of considerable socioeconomic importance. On the basis of an established system for culture of...

Journal: :The Journal of clinical investigation 1989
R E Brenner U Vetter A Nerlich O Wörsdorfer W M Teller P K Müller

We analyzed tissue and cells from a stationary and a rapidly growing hyperplastic callus from a patient with osteogenesis imperfecta (OI) type IV and compared the results with those of compact bone and skin fibroblasts of an age-matched control. Collagen and protein contents per cell were low in the callus tissues and collagen I and III were overmodified as evidenced by an elevated level of hyd...

Journal: :The Journal of bone and joint surgery. British volume 1999
S Tsubota H Tsuchiya Y Shinokawa K Tomita H Minato

We carried out limb lengthening in rabbits and then transplanted osteoblast-like cells derived from the tibial periosteum to the centres of distracted callus immediately after distraction had been terminated. Two weeks later the transaxial area ratio at the centre of the distracted callus and the bone mineral density (BMD) were significantly higher in the transplanted group, by 21% and 42%, res...

Journal: :Indian journal of experimental biology 2006
Kamlesh Vaishnav Shaily Goyal K G Ramawat

Isoflavonoid contents of different plant parts and callus tissues of the Indian Kudzu, Pueraria tuberosa (Roxb.ex.Willd.) DC are presented. The initial cultures were slow growing, associated with browning of the tissues. The production of four isoflavonoids (puerarin, genistin, genistein and daidzein) in the callus cultures of P. tuberosa was studied by manipulating the plant growth regulators ...

2011
and Sivaraj

The antimicrobial activity of plant extracts were found in folk medicine as essential oils or isolated compounds. Some of these compounds were isolated or obtained by bio-guided isolation after previously detecting antimicrobial activity on the part of the plant. Petunia is an imporant medicinal and ornamental plant.The in vitro callus induction and antibacterial activity of Petunia leaf and ca...

Journal: :journal of plant molecular breeding 2013
abdoreza bagheri vali ollah ghasemi omraan samira hatefi

establishment of an efficient and reproducible regeneration protocol is one of the basic prerequisites for genetic transformation of any crop plant. in vitro culture of lentil has proven to be difficult. in spite of a number of reports on the regeneration of this plant, very few satisfying and reproducible protocol has yet been reported. this study carried out for investigation of different hor...

Journal: :The Journal of bone and joint surgery. British volume 1953
G HILTON

The case here recorded was first described (Hilton 1934) under the title “ Familial Chondrodystrophy with Rheostosis Treated by X-ray Therapy. ‘ ‘ It is thought appropriate, in giving this up-to-date further account of the progress of the case, to substitute the description ‘ ‘ hyperplastic callus, ‘ ‘ because the main features of the present case conform with those observed in hyperplastic cal...

Journal: :BioImpacts : BI 2011
Ahmad Yari Khosroushahi Hossein Naderi-Manesh Henrik Toft Simonsen

INTRODUCTION To control the tissue browning phenomenon, callus growth, total phenolics and paclitaxel production, in the current investigation, we evaluated the effects of citric acid and ascorbic acid (as antioxidants) and glucose, fructose and sucrose in callus cultures of Taxus brevifolia. METHODS To obtain healthy callus/cell lines of Taxus brevifolia, the effects of two antioxidants asco...

2013
R. E. Brenner U. Vetter A. Nerlich P. K. Muller

We analyzed tissue and cells from a stationary and a rapidly growing hyperplastic callus from a patient with osteogenesis imperfecta (OI) type IV and compared the results with those of compact bone and skin fibroblasts of an age-matched control. Collagen and protein contents per cell were low in the callus tissues and collagen I and III were overmodified as evidenced by an elevated level of hyd...

Journal: :Plant physiology 2005
Blazena Koukalova Miloslava Fojtova Kar Yoong Lim Jaroslav Fulnecek Andrew Rowland Leitch Ales Kovarik

Epigenetic changes accompanying plant cell dedifferentiation and differentiation are reported in 35S ribosomal DNA (rDNA) of tobacco (Nicotiana tabacum). There was a reduction of CG and CNG methylation in both intergenic and genic regions of the rDNA cistron in fully dedifferentiated callus and root compared to leaf. The rDNA hypomethylation was not random, but targeted to particular rDNA gene ...

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