Zinc tolerance and accumulation in stable cell suspension cultures and in vitro regenerated plants of the emerging model plant Arabidopsis halleri (Brassicaceae)

Planta ◽  
2009 ◽  
Vol 229 (4) ◽  
pp. 977-986 ◽  
Author(s):  
Rosario Vera-Estrella ◽  
Maria Cristina Miranda-Vergara ◽  
Bronwyn J. Barkla
Keyword(s):  
Cell Suspension ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Arabidopsis Halleri ◽  
Zinc Tolerance ◽  
Model Plant ◽  
Regenerated Plants

scholarly journals Antimicrobial activity of callus and cell suspension cultures extracts of Thevetia peruviana

2019 ◽  
Vol 8 (1) ◽  
pp. 45-56
Author(s):  
Juan Pablo Arias Echeverri ◽  
Isabel Cristina Ortega ◽  
Mariana Peñuela ◽  
Mario Arias
Keyword(s):  
Antimicrobial Activity ◽  
Cell Suspension ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Ornamental Plant ◽  
Thevetia Peruviana ◽  
Hexane Extracts ◽  
Ethanol Extracts ◽  
Different Parts

Thevetia peruviana is an ornamental plant considered source of biologically compounds with cardiac and antimicrobial activity. These compounds are normally extracted from different parts of the fully growth plants. In this work, extracts were obtained from callus and cell suspension cultures of T. peruviana and their antimicrobial activity was evaluated by disk diffusion tests against gram negative (Salmonella thipimurium and Escherichia coli) and gram positive (Staphylococcus aureus and Bacillus cereus) strains. Ethanol, methanol and hexane extracts from callus and cell suspension cultures showed biological activity. Methanolic cell suspension extract showed activity against B. cereus and S. aureus. Ethanolic cell suspension extract inhibit all the bacteria, especially S. thipimurium while hexanic extract showed resistance activity against S. thipimurium, S. aureus and B. cereus. In terms of the source of the extracts, hexane extracts obtained from cell suspension cultures showed a higher antimicrobial activity compared to callus, while ethanol extracts had an inverse behavior. These results outline in vitro cell culture of T. peruviana as a feasible biotechnological platform for the production of compounds with antimicrobial activity.

Über den Abbau von Flavonolen in pflanzlichen Zellsuspensionskulturen / Degradation of Flavonols in Plant Suspension Cultures

1972 ◽  
Vol 27 (8) ◽  
pp. 946-954 ◽  
Author(s):  
Wolfgang Hösel ◽  
Paul D. Shaw ◽  
Wolfgang Barz
Keyword(s):  
Salicylic Acid ◽  
Glycine Max ◽  
Cell Suspension ◽  
Cicer Arietinum ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Enzyme Preparations ◽  
Cicer Arietinum L

The flavonols kaempferol, quercetin and isorhamnetin were labelled with 14C by keeping seven day old Cicer arietinum L. plants in an atmosphere of 14CO2 for five days. The purified (U-14C) flavonols were applied to cell suspension cultures of Cicer arietinum L., Phaseolus aureus Roxb., Glycine max and Petroselinum hortense. Based on the rates of 14CO2 formation and distribution of radioactivity after fractionation of the cells, the flavonols were shown to be catabolized to a very high extent.All four cell suspension cultures possess the enzymatic activity transforming flavonols to the recently discovered 2,3-dihydroxyflavanones. Upon incubation of the flavonols datiscetin and kaempferol with enzyme preparations from Cicer arietinum L. cell suspension cultures, it was demonstrated that the enzymatically formed 2,3-dihydroxyflavanones are further transformed in an enzyme catalyzed reaction. Salicylic acid was found as a degradation fragment of ring B of the 2,3,5,7,2′-pentahydroxyflavanone derived from datiscetin. Neither phloroglucinol nor phloroglucinol carboxylic acid were observed as metabolites of ring A. These in vitro findings were further substantiated by in vivo data because the flavonols kaempferol, quercetin and datiscetin when applied to cell suspension cultures of Cicer arietinum L. and Glycine max gave rise to para-hydroxybenzoic acid, protocatechuic acid and salicylic acid, respectively. It was thus concluded that flavonols are catabolized via 2,3-dihydroxyflavanones with the B-ring liberated as the respective benzoic acid. The data are discussed in connection with earlier findings on the catabolism of chalcones, cinnamic and benzoic acids.

scholarly journals Extracts from Cell Suspension Cultures of Strawberry (Fragaria x ananassa Duch): Cytotoxic Effects on Human Cancer Cells

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1738 ◽  
Author(s):  
Simona Lucioli ◽  
Fabio Pastorino ◽  
Paolo Nota ◽  
Giulia Ballan ◽  
Andrea Frattarelli ◽  
...  
Keyword(s):  
Cell Suspension ◽  
Cell Lines ◽  
Human Cancer ◽  
Mass Measurement ◽  
Human Fibroblasts ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Chromatographic Retention ◽  
Cervix Carcinoma

Natural compounds are emerging as agents for the treatment of malignant diseases. We previously showed that extracts from in vitro cell suspension cultures of strawberry reduced murine melanoma cell proliferation, as shown for fruit extracts. In this work, chromatographic, mass spectrometric, and spectrophotometric analyses were carried out to identify the bioactive compound exerting the detected cytotoxic activity. Moreover, aiming to confirm the anti-proliferative activity of the extracts against both paediatric and adult human tumors, cytotoxic experiments were performed on neuroblastoma, colon, and cervix carcinoma cell lines. Extracts from in vitro cell suspension cultures of strawberry induced a statistically significant reduction of cell growth in all the tumor cell lines tested. Interestingly, human fibroblasts from healthy donors were not subjected to this cytotoxic effect, highlighting the importance of further preclinical investigations. The accurate mass measurement, fragmentation patterns, and characteristic mass spectra and mass losses, together with the differences in chromatographic retention times and absorbance spectra, led us to hypothesize that the compound acting as an anti-proliferative agent could be a novel acetal dihydrofurofuran derivative (C8H10O3, molecular mass 154.0630 amu)

Acrylamide gel electrophoresis of proteins from intact and cultured plant tissues

1975 ◽  
Vol 53 (5) ◽  
pp. 517-519 ◽  
Author(s):  
R. K. Ibrahim ◽  
Emil Cavia
Keyword(s):  
Cell Suspension ◽  
Gel Electrophoresis ◽  
Callus Tissue ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Soluble Proteins ◽  
Plant Tissues ◽  
Improved Method ◽  
Electrophoresis Of Proteins

An improved method is described for the extraction of soluble proteins from intact and in-vitro-cultured plant tissues. Its main characteristics are the elimination of contaminants, concentration and stability of extracts, and suitability for acrylamide gel electrophoresis. The usefulness of the method was demonstrated by depicting the differences in protein complements of intact cotyledons, callus tissue, and cell suspension cultures of flax.

In vitro cyclization of squalene 2,3-epoxide to α-amyrin by microsomes from bramble cell suspension cultures

1977 ◽  
Vol 16 (4) ◽  
pp. 490-492 ◽  
Author(s):  
John W. Elder ◽  
Pierre Benveniste ◽  
Paul Fonteneau
Keyword(s):  
Cell Suspension ◽  
Cell Suspension Cultures ◽  
Suspension Cultures

In vitro synthesis of (13)---glucan (callose) and cellulose by detergent extracts of membranes from cell suspension cultures of hybrid aspen

Cellulose ◽  
2004 ◽  
Vol 11 (3/4) ◽  
pp. 313-327 ◽  
Author(s):  
Audrey Colombani ◽  
Soraya Djerbi ◽  
Laurence Bessueille ◽  
Kristina Blomqvist ◽  
Anna Ohlsson ◽  
...  
Keyword(s):  
Cell Suspension ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Hybrid Aspen ◽  
In Vitro Synthesis

scholarly journals STUDYING ON GROWTH OF STRAWBERRY (FRAGARIA ANANASSA L.) CELL SUSPENSION CULTURES FOR ANTHOCYANIN PRODUCTION

2012 ◽  
Vol 15 (2) ◽  
pp. 69-77
Author(s):  
Tram Thi My Pham ◽  
Tien Thi Thuy Le
Keyword(s):  
Cell Suspension ◽  
Light Condition ◽  
Cell Suspension Cultures ◽  
Suspension Cultures ◽  
Differential Method ◽  
Ms Medium ◽  
Initial Inoculum ◽  
Anthocyanin Production ◽  
Better Than

Cell suspension cultures were initated from calli derived from in vitro strawberry leaves on MS medium (Murashige and Skoog, 1962) supplemented with 30 g/l sucrose, 1.0 mg/l 2,4-D and 0.3 mg/l kinetin. There were many factors affected on cell suspension cultures growth (it was found that …). Cell suspension cultures grew better on MS medium with 30 g/l sucrose. 1 g (fresh weight) of cells in 20 ml of medium was the best initial inoculum cell density for cell suspension cultures to grow. A shaking speed of 100 rpm on rotary shaker was suitable for the cells. The growth of cell suspension in dark was better than that under light condition. Anthocyanin in the cells was determined by pH differential method.

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