scholarly journals The effect of triacontanol on shoot multiplication and production of antioxidant compounds in shoot cultures of Salvia officinalis L.

2011 ◽  
Vol 75 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Izabela Grzegorczyk ◽  
Ireneusz Bilichowski ◽  
Elżbieta Mikiciuk-Olasik ◽  
Halina Wysokińska

This report describes the effect of triacontanol on shoot multiplication and production of antioxidant compounds (carnosic acid, carnosol and rosmarinic acid) in <em>S. officinalis</em> cultures grown on MS basal medium (agar solidified medium supplemented with 0.1 mg l<sup>-1</sup> IAA, 0.45 mg l<sup>-1</sup> BAP). It was found that shoot proliferation significantly increased when triacontanol at concentrations of 5, 10 or 20 µg l<sup>-1</sup> was added to the medium. HPLC analysis of acetone and methanolic extracts of sage shoots showed that the production of diterpenoids, carnosic acid/carnosol ratio, as well as, contents of rosmarinic acid were also affected by the treatment with triacontanol. The highest stimulation effect of triacontanol was observed on the production of carnosol, where the treatment with 20 µg l l<sup>-1</sup> increased the content of this diterpenoid 4.5-fold compared to that in the control (sage shoots growing on MS basal medium, only).

2011 ◽  
Vol 77 (2) ◽  
pp. 99-104 ◽  
Author(s):  
Izabela Grzegorczyk ◽  
Halina Wysokińska

Liquid shoot culture of <em>Salvia officinalis</em> L. in MS medium containing IAA (0.1 mg l<sup>-1</sup>) and BAP (0.45 mg l<sup>-1</sup>) was developed and evaluated in relation to shoot multiplication and antioxidant compound (carnosic acid, carnosol and rosmarinic acid) accumulation. In the liquid medium, on average, 3 new shoots per explant (shoot tip) were obtained within 3 weeks. The shoots produced 8.2±0.02 mg of diterpenoids and 31.2±0.29 mg of rosmarinic acid per gram of dry weight. Shoot proliferation and diterpenoid content increased when triacontanol (5, 10 or 20 pg l<sup>-1</sup>) was added to the liquid medium. In optimum conditions (at 20 pg l<sup>-1</sup> TRIA) almost 7 shoots were formed per explant after 3 weeks. An increase in diterpenoid production (expressed as the sum of carnosol and carnosic acid) ranged from 30% to 50% and dependended on triacontanol concentration tested. The level of diterpenoids in triacontanol-treated shoots was similar to the content of compounds in commercial herbal product (dried leaves of <em>S. officinalis</em>) (10-12 mg g<sup>-1</sup> dry wt). Triacontanol did not increase rosmarinic acid production, but the content of the phenolic as compound in shoots grown in liquid culture (31 mg g<sup>-1</sup> dry wt) was even 24 times higher compared to samples of dried leaves of <em>S. officinalis</em> plants. We also demonstrated that the highest amounts of CA, Car and RA were accumulated in young, top parts of sage shoots. This observation could be useful for improving the selection of material for the extraction of natural antioxidants from <em>S. officinalis</em>.


2006 ◽  
Vol 24 (1) ◽  
pp. 35-38 ◽  
Author(s):  
Wenhao Dai ◽  
Victoria A. Magnusson ◽  
Harlene Hatterman-Valenti ◽  
Jack F. Carter

Abstract A micropropagation method was developed for a cold hardy purple raspberry cultivar (Rubus occidentalis × R. idaeus ‘Amethyst’). In vitro shoot cultures were initiated from shoot tips of a 30-year old ‘Amethyst’ plant. The effects of basal medium, plant growth regulator, and temperature on shoot proliferation were investigated. Shoots were produced from explants in both Murashige and Skoog (MS) and Driver-Kuniyuki Walnut (DKW) media supplemented with different concentrations of thidiazuron (TDZ) and benzyladenine (BA), solely or combined. One micro molar TDZ gave rise to the maximum proliferation rate. Interactions between BA and medium or TDZ were significant. Shoots produced on media with 1.0 μM TDZ had thick stems and small, dark green leaves whether BA was absent or present. Shoots can be rooted both in vitro and ex vitro with or without IBA at 0 to 1.0 μM. However, combination of rooting and shoot multiplication by adding a low level of TDZ to rooting medium produced multi-cane plants resulting in shortening propagation time, increasing survival rate, and lowering the production cost.


2016 ◽  
Vol 8 (2) ◽  
pp. 161-163
Author(s):  
Owk ANIEL KUMAR ◽  
Songa RAMESH ◽  
Sape SUBBA TATA

Physalis angulata L. is an important medicinal herb. An efficient direct adventitious plant regeneration protocol was developed for large scale propagation using leaf disc as explants. The explants were cultured on MS basal medium supplemented with 0.25-3.0 mg/L 6-benzyl amino purine (BAP) for primary shoot proliferation. Inclusion of indole-3-acetic acid (IAA) and gibberellic acid (GA3) in the culture medium along with BAP promoted a higher rate of shoot multiplication. The maximum number of shoots was produced in MS + BAP (1.0 mg/L) + IAA (0.5 mg/L) + GA3 (0.20 mg/L) after the third subculture. An average of 152.8 ± 0.40 shoots were produced from each leaf disc. For root induction the shootlets were transferred to MS medium supplemented with different concentrations of indole-3-butyric acid (IBA). The highest percentage of root induction was observed in 1.0 mg/L (IBA). Rooted plants were successfully established in the soil after hardening. The survival percentage of rooted plants on soil was found to be 85%. This result will facilitate the conservation and propagation of the important medicinal herb Physalis angulata L.


2015 ◽  
Vol 37 (8) ◽  
pp. 1693-1701 ◽  
Author(s):  
Margareta Kračun-Kolarević ◽  
Slavica Dmitrović ◽  
Biljana Filipović ◽  
Marija Perić ◽  
Danijela Mišić ◽  
...  

HortScience ◽  
1992 ◽  
Vol 27 (6) ◽  
pp. 693b-693
Author(s):  
Xiaoling Yu ◽  
Barbara M. Reed

Multiplication and elongation of shoot cultures established from mature trees of hazelnut cvs. Nonpareil and Tonda Gentile Romana were affected by changes in basal medium, carbon source and concentration, cytokinin and agar concentration. Explants on DKW medium produced significantly more shoots than those on Anderson medium or modified woody plant medium for chestnut. Explants on DKW medium with 3% glucose or fructose gave more and longer shoots than those with the other carbon sources. Cytokinins 6 benzylaminopurine (BA) and zeatin were more effective in producing shoots than kinetin and 2iP. On BA supplemented medium, the best multiplication rate was obtained with 1.5 - 2.0 mg/l. Explants grown on 0.4% agar produced more shoots than those on 0.6%, however, prolonged culture on 0.4% agar caused vitrification of lower parts of the plants. Shoot multiplication rates of these two cultivars were similar, but `Nonpareil' produced longer shoots than `Tonda Gentile Romana'.


2011 ◽  
Vol 74 (1) ◽  
pp. 17-21 ◽  
Author(s):  
Izabela Grzegorczyk ◽  
Ireneusz Bilichowski ◽  
Elżbieta Mikiciuk-Olasik ◽  
Halina Wysokińska

The concentrations of carnosic acid, carnosol and rosmarinic acid in different materials from differentiated (multiple shoot cultures and regenerated plants) and undifferentiated (callus and cell suspension) in vitro cultures of <em>Salvia officinalis</em> were determined by HPLC. The results suggested that diterpenoid (carnosic acid and carnosol) production is closely related to shoot differentiation. The highest diterpenoid yield (11.4 mg g<sup>-1</sup> for carnosic acid and 1.1 mg g<sup>-1</sup> for carnosol) was achieved in shoots of 10-week-old micropropagated plants. The levels were comparable to those found in shoots of naturally growing plants. Undifferentiated callus and cell suspension cultures produced only very low amounts of carnosol (ca. 0.05 mg g<sup>-1</sup> of dry weight). In contrast, content of rosmarinic acid in callus and suspension cultures as well as shoots growing in vitro and in vivo was similar and ranged between 11.2 and 18.6 mg g<sup>-1</sup> of dry weight.


1970 ◽  
Vol 43 (2) ◽  
pp. 215-222 ◽  
Author(s):  
AKM Sayeed Hassan ◽  
Farhana Afroz ◽  
Laila Shamroze Bari ◽  
John Liton Munshi ◽  
Miskat Ara Akhter Jahan ◽  
...  

A protocol was established for mass propagation of a valuable medicinal herb, Eclipta alba (Linn.) Hassk (Asteraceae) through in vitro culture. Apical and axillary buds of young sprouts from selected plants were used as explants. Best shoot induction was observed on MS basal medium supplemented with 0.5 mgl-1 BAP + 0.1 mgl-1 NAA, in which 94% of the explants produced 18 shoots per culture. Repeated subcultures in the same medium, resulted rapid shoot multiplication with 26 shoots per culture. In vitro raised shoots rooted on half strength MS medium with 1.0 mgl-1 IBA +1.0 mgl-1 NAA. For acclimatization and transplantation, the plantlets in the rooting culture tubes were kept in normal room temperature for 7 days before transplanting in pots where plantlets were reared for three weeks. The survival rate of regenerated plantlets was 80%. Key words: Eclipta alba, Medicinal plant, Shoot proliferation, Micropropagation, Acclimatization   DOI: 10.3329/bjsir.v43i2.965 Bangladesh J. Sci. Ind. Res. 43(2), 215-222, 2008 


2010 ◽  
Vol 19 (1) ◽  
pp. 71-78 ◽  
Author(s):  
A.K.M. Sayeed Hassan ◽  
Farhana Afroz ◽  
Miskat Ara Akhter Jahan ◽  
Rahima Khatun

A protocol was established for mass propagation of the valuable medicinal plant Ficus religiosa L. (Moraceae) through in vitro culture using apical and axillary buds of young sprouts from selected plants. Best shoot induction was observed on MS basal medium supplemented with 0.5 mg/l BAP + 0.1 mg/l IAA, in which 78 per cent of the explants produced 16 shoots per culture. Repeated subcultures in the same medium, resulted rapid shoot multiplication with 24 shoots per culture. In vitro raised shoots rooted on half strength MS supplemented with 2.0 mg/l IBA + 0.1 mg/l NAA. For acclimatization and transplantation, the plantlets in the rooting culture tubes were kept in normal room temperature for seven days before transplanting in pots where plantlets were reared for three weeks. The survival rate of regenerated plantlets was 85 per cent.  Key words: Ficus religiosa, Medicinal plant, Shoot proliferation, Regeneration,                   Acclimatization D.O.I. 10.3329/ptcb.v19i1.4987 Plant Tissue Cult. & Biotech. 19(1): 71-78, 2009 (June)


HortScience ◽  
1990 ◽  
Vol 25 (6) ◽  
pp. 687-689 ◽  
Author(s):  
Michael E. Kane ◽  
Edward F. Gilman ◽  
Matthew A. Jenks ◽  
Thomas J. Sheehan

Procedures for in vitro establishment, rapid shoot proliferation, and ex vitro plantlet acclimatization of Cryptocoryne lucens de Witt were determined. Shoot cultures were established from surface-sterilized shoot tips cultured on Linsmaier and Skoog salts and vitamins medium (LS) solidified with 0.8% (w/v) agar and supplemented with 2.0 μm BA and 0.5 μm NAA. The effect of BA (0 to 20 μm) and 0.5 μm NAA on shoot multiplication from single-node and clustered triple-node shoot explants was determined after 35 days. The most efficient shoot proliferation (7.7 shoots/explant) occurred from single-node shoot explants cultured on LS + 20 μm BA and 0.5 μm NAA. Maximum plantlet establishment was achieved by direct sticking of triple-node (cluster) microcuttings in either soilless planting medium or polyurethane foam cubes. Production of highly branched salable plants from microcuttings was possible within 18 weeks. Chemical names used: N-(phenylmethyl) -1H-purin-6-amine (BA); 1-naphthaleneacetic acid (NAA).


HortScience ◽  
1994 ◽  
Vol 29 (5) ◽  
pp. 431d-431
Author(s):  
Yan Ma ◽  
David H. Byrne ◽  
Jing Chen ◽  
Amanda Byrne

Several rose species (Rosa rugosa, R. wichuraiana, R. setigera, R. laevigata, R. banksiae, R. roxburghii, R. odorata and hybrids) were employed to establish the appropriate nutrient media for shoot multiplication and root initiation of cultured shoots and to describe a procedure for the successful transfer to soil of plants obtained in vitro. Cultured shoot tips and lateral buds from different genotypes proliferated multiple shoots on a basal medium (MS salt, vitamins, glycine, sucrose and agar) supplemented with 0mg/l to 6mg/l 6-benzylamino purine (BA) and 0mg/l to 0.5 mg/l naphthalene acetic acid (NAA). Most rose species cultured in a modified MS medium supplemented with 2mg/l BA showed good growth and shoot proliferation. The buds nearest the apex exhibited the slowest rate of bud development. Root development was enhanced and shoot development inhibited by lowering the concentration of MS salts to quarter- and half-strength. With difficult-to-root species, rooting was improved by supplementing the media with auxin or giving them 3-7days of dark treatment.


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