Influencing in vitro clonal propagation of Chonemorpha fragrans (moon) Alston by culture media strength, plant growth regulators, carbon source and photo periodic incubation

2018 ◽  
Vol 31 (1) ◽  
pp. 27-43 ◽  
Author(s):  
Tasiu Isah ◽  
Shahid Umar
2019 ◽  
Vol 15 (1) ◽  
pp. 1-7
Author(s):  
Daniele Camargo Nascimento ◽  
Maximiliano Dini ◽  
Norton Victor Sampaio ◽  
Márcia Wulff Schuch

2020 ◽  
Vol 23 (1) ◽  
pp. 178-190
Author(s):  
Jeillan Hussein ◽  
Diaa ibraheam

Marumi kumquat (Fortunella Japonica) is culture for its valuable nutritional value and medicinal importance in many regions of the world. The current study aimed to evaluate the effect of two types of media enriched with different concentrations of fructose and different plant growth regulators and different fructose concentration on in vitro propagation of Fortunella Japonica. The findings showed that the most effective treatment for explant surface sterilization was by using 0.1% HgCl2 for ten minutes which give best results for production contamination-free explants at the initiation cultures. At multiplication stage, WPM medium gave better results at all tested BA levels as compared with MS medium. No significant differences were showed by using BA alone or in combination with GA3 in the measured parameters. It has been observed that WPM medium supplemented with 0.5mgl-1 BA with the presence of 30mgl-1 fructose was able to give the highest shoot length (1.56cm) with maximum shoots number/explant 9.0 and highest leaves number/explant (21.0). The proliferated shoots were exposed to full strength MS medium salts supplemented with 2mgl-1 NAA which showed the highest ratio of rooting. In vitro rooted plantlets were gradually acclimatized and transferred to open air conditions, which recorded a high survive rate reached to 92%


2017 ◽  
Vol 48 (5) ◽  
Author(s):  
Al-Obaidy & Khierallah

This research was conducted to study the effect of some plant growth regulators on in vitro shoots multiplication of stevia (Stevia rebaudiana Bertoni). The experiments included tests of various combinations of KIN with IBA or IAA in the shoot multiplication. Results indicated that KIN at 1.0 mg. L-1 plus 0.3 mg. L-1 of IBA produced the highest number of shoots (3.5 shoots) while KIN at 1.5 mg. L-1 plus IBA at 1.0 mg. L-1 produced the lowest shoot length (1.14 cm).  Hormone free medium produced the highest rate of the leaves number reached 28.56 leaves. KIN and IBA interaction increased fresh and dry weight significantly.   Treatment contained 2.0 mg -1 KIN plus 0.3 mg. L-1 IBA produced the highest fresh weight (1.739 g) while 0.5 mg. L-1 KIN and 0.3 mg. L-1 IBA produced the highest dry weight (0.822 g). As for the effect of interaction between the IAA and KIN it was significant in the number of shoots formed. Interaction between 1.0 mg. L-1 KIN with 0.1 mg. L-1IAA produced the highest number of shoots (3.8 shoots). Shoots length reached 8.10 cm in the media with 0.3 mg. L-1 IAA only. The highest fresh weight (1.267 g) was achieved with the interaction between 1.0 mg. L-1 KIN and 0.3 mg. L-1 IAA while 0.5 mg. L-1IAA without KIN produced the highest dry weight reached 0.138 g.  Shoots multiplication was improved by incorporation of the cytokinin TDZ in culture media. Shoots number, fresh and dry weights were increased significantly by adding 0.05 mg. L-1 of TDZ at present of 0.3 mg. L-1 of IBA giving 6.6 shoots, 0.974 g and 0.144 g respectively while shoots length decreased significantly as media without TDZ produced the highest shoots length reached 9.32 cm. The above results can adopt for the successful in vitro shoot multiplication of Stevia plants. 


2015 ◽  
Vol 7 (1) ◽  
pp. 30-37 ◽  
Author(s):  
Sunil Kumar ◽  
Virendra Kumar ◽  
Manoj Kumar Sharma ◽  
Narendra Kumar ◽  
Anil Kumar ◽  
...  

Jatropha (Jatropha curcas L.) is an oil bearing crop growing in tropical and subtropical parts of the world. The present study was undertaken to investigate the effects of different plant growth regulators on in vitro callus induction in physic nut (J. curcus). In the present study, it was observed that all the explants viz., leaf lamina, petioles, nodal segments and cotyledonary nodes showed good callus induction responses on various culture media thus tried. Leaf lamina and petioles showed 100.0% callus induction responses on different MS media supplemented with auxins and cytokinins alone or in combinations whereas, nodal segments and cotyledonary nodes showed maximum 89.6% and 83.9% callus induction respectively. The presence of 2, 4-D in culture media with auxins or cytokinins was essential for good callus growth. Among different explants tried, leaf lamina was the best responding explants and MS-13 media supplemented with 5×10-6 M NAA and 10-5 M 2, 4-D is the best callusing and growth supporting medium. However, the regenerative competence of the callus tissues can differ depending on the type of explants used because certain types of plant tissues have more favorable regeneration responses than others. Callus induction rate from all explant types was highest than other reports. The results obtained in the present study would facilitate the high callus induction and regeneration responses in J. curcus for its improvement using biotechnological tools.


Agronomy ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 1181
Author(s):  
María Eugenia Martinez ◽  
Lorena Jorquera ◽  
Paola Poirrier ◽  
Katy Díaz ◽  
Rolando Chamy

Taraxacum officinale (L.) Weber ex F.H. Wigg, commonly known as dandelion, is a cosmopolitan and perennial weed, which has medicinal properties. In vitro propagation methods are widely used on plants that have difficulties in cultivation and, consequently, low extraction yields of active metabolites. Thus, callus culture has been considered to be useful for the accumulation of several metabolites. In this study, we aimed to establish an efficient protocol for callus induction and maintenance of T. officinale, for which explant type, carbon source, light conditions, and nine different combinations of plant growth regulators (PGRs), such as 1-naphthaleneacetic acid (NAA) (from 0.05 to 0.5 mg/L) and 6-benzylaminopurine acid (BAP) (from 0.5 to 3.0 mg/L), were evaluated. The results showed that hypocotyls and roots from sterile seedlings are the best sources for callus induction, with 100% of callogenesis at every condition tested, and more than 95% of viability and friability. Complete darkness and a medium supplemented with sucrose at 2.3% (w/v) and 0.5 mg/L of NAA and 0.5 mg/L of BAP were the best conditions for callus induction, showing callus with low organogenesis and high friability. This study provides a basis for future studies on improving large-scale callus propagation and further establishment of suspension culture systems for commercial purposes.


2011 ◽  
Vol 2 (1) ◽  
pp. 8
Author(s):  
Daneshwar Puchooa ◽  
Vishwakalyan Bhoyroo ◽  
Vijayanthi Mala Sanmukhiya

<p><em>Beclardia macrostahya</em> is one of the rarest orchids in Mauritius. <em>In vitro</em> techniques are being used for mass propagating this orchid for subsequent restoration programs. Successful asymbiotic germination <em>of</em> <em>Beclardia macrostachya </em>was obtained through embryo rescue. Modified half MS media supplemented with 10% coconut milk was used as basal culture media and the effect of plant growth regulators at different concentrations on embryo development was assessed through qualitative and quantitative parameters. Diameter of embryos, length of protocorm-like bodies (PLBs) and length of developing shoots were calculated using digital photography. Maximal growth was obtained in treatments without any plant growth regulators and 0.5mg/l N<sup>6</sup> Benzyl Amino Purine (BAP). Higher levels of Thiadurazon/TDZ (0.3mg/l) and BAP (1.0 mg/l) though they stimulated embryo development faster, yielded higher level of necrosis later. The results also suggest that plant growth regulator treatments that stimulate fastest embryo development from immature embryos/ovules need not be reliable for further development to PLB and plantlet regeneration.</p>


2015 ◽  
Vol 22 (2) ◽  
pp. 69-73
Author(s):  
Kumud Saklani ◽  
Hem Pant ◽  
Vinod Bisht ◽  
Arun Singh ◽  
Vijay Rawat

The present study was conducted to improve upon the micropropagation protocol of Rose cultivars by modification of the MS medium through variations in sucrose and agar concentrations thereby enhancing the shoot multiplication and rooting efficiency of the nodal explants. High sucrose concentrations and low agar concentrations favoured shoot mutiplication during the in vitro stages. Enhanced multiplcation and growth was observed on sub culturing the mother explants with regenerated shoots on fresh MS medium containing sucrose (3.5%, w/v) and agar (0.6%, w/v), supplemented with lower concentrations cytokinin combination of BAP and KN (2.5 mgl-1+1.5 mgl-1) respectively. Half strength MS medium containing sucrose (2.0%, w/v) and agar (0.3%, w/v) with NAA and BAP (2.0 mgl-1+0.5 mgl-1) in combination was most effective for rooting.


2015 ◽  
Vol 23 (1) ◽  
pp. 57-64 ◽  
Author(s):  
Maliheh Fallahpour ◽  
Seied Mehdi Miri ◽  
Naser Bouzari

AbstractThe purpose of the presented study was to determine the best mineral composition of media and plant growth regulators in the micropropagation of the ‘Gisela 5’ (Prunus cerasus×P.canescens) dwarf sweet cherry rootstock. Nodal explants from young healthy shoots were excised and cultured on Murashige and Skoog medium without growth regulators.In vitroraised shoot tips were transferred to three culture media including Murashige and Skoog (MS), Driver and Kuniyuki (DKW) and Lloyd and McCown (WPM) containing benzyl adenine (BA) (0.5, 1 or 2 mg·l−1) in combination with kinetin (Kin) at 0 or 0.5 mg·l−1. WPM and DKW media were proving to be the most effective, resulting in a higher percentage of shoot multiplication and shoot number as compared to MS. BA in concentration 2 mg·l−1resulted in the highest number of microshoots per explant (3.1). For rooting, 0, 0.5, 1 or 2 mg·l−1indole-3-butyric acid (IBA) on MS, DKW and WPM media were tested. WPM medium containing 2 mg·l−1IBA was most effective for rooting (93.7%) in comparison to MS (53.1%) and DKW (14.0%). Rooted plantlets were successfully hardened and established in pots.


Author(s):  
D.S. Sparjanbabu ◽  
P. Naveen Kumar ◽  
M.S.R. Krishna ◽  
D. Ramajayam ◽  
B. Kalyana Babu ◽  
...  

Oil palm (Elaeis guineensis Jacq.) has become the largest traded vegetable oil in the world due to its innumerable uses and its huge economic importance. Which increases the requirement of quality seedling but the conventional seed production limits the commercial seed production with its long germination period and low germination rate. In this context in vitro germination of zygotic embryo could be a promising alternative. Hence in this study the effect of culturing media, plant growth regulators and genotypes were assessed on in vitro regeneration and plantlet development of oil palm zygotic embryos. Zygotic embryos of four elite genotypes were cultured on MS, N6 and Y3 media, with or without plant growth regulators (NAA, BA and GA3-0.2mg/lt). There was no effect of culture media, plant growth regulators and genotypes on germination of zygotic embryos. Whereas on the growth and development of in vitro plantlets, there was a significant effect of culture media and genotypes. Where culture media N6 performs well and Y3 has shown more abnormality. In case of genotypes, genotypes G1 and G2 shown better performance when compared to genotypes G3 and G4. The effect of plant growth regulators on germination and plant growth was non significant.


HortScience ◽  
2006 ◽  
Vol 41 (4) ◽  
pp. 1024D-1024
Author(s):  
Guochen Yang ◽  
Zhongge (Cindy) Lu ◽  
Carl E. Niedziela

This research was initiated to study different culture media and plant growth regulators for their influences on callus initiation and production, with a research goal of developing an efficient in vitro callus regeneration protocol for guava (Psidium guajava L.). Guava is an important tropical fruit species that is rich in vitamins and vitamin precursors, minerals, organic acids, and pectins. Seventy-nine phytochemicals provide guava with many unique properties and actions, including anti-microbial, astringent, bactericidal, cicatrizant, emmenagogue, hypoglycemic, laxative, nutritive, and spasmolytic. Different concentrations of various plant growth regulators (PGR), such as 6-benzyladenine (BA), kinetin, or 2,4-dichlorophenoxyacetic acid (2,4-D), and naphthaleneacetic acid (NAA) were added to basic Murashige and Skoog (MS) and woody plant medium (WPM) and tested for their influences. Differences in callus initiation and morphology were noticed between MS and WPM, and among PGR concentration treatments.


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