scholarly journals Micropropagation of Liriope muscari via leaf explant

1969 ◽  
Vol 83 (3-4) ◽  
pp. 169-173
Author(s):  
Keithley L. Amory ◽  
John M. Gill

Young leaves of Liriope muscari provide an ample source of explants for in vitro propagation in tropical countries where flowering is scarce. Leaves were induced to form calli on a solid medium containing Murashige and Skoog (MS) salts and vitamins, 3% sucrose, 0.7% agar, 1 mg/L 2,4-dichlorophenoxy- acetic acid (2, 4-D) and 1 mg/L 6-furfurylaminopurine (kinetin). Only the proximal segments of the leaves produced calli. These calli were induced to produce multiple plantlets on MS medium, 3% sucrose, 0.7% agar, and 10 mg/L N6 (2-isopentenyl) adenine (2 ip). It is possible to use leaf explants for in vitro mass production of Liriope. However, in variegated varieties, only green or white plants were produced, because of a chimera in the original tissue.

2020 ◽  
Author(s):  
Nurşen Çördük ◽  
Cüneyt Aki

Digitalis trojana Ivanina is a member of the Plantaginaceae family and known by its common name, Helen of Troy foxglove. It is perennial endemic to Çanakkale and Balıkesir, northwestern Turkey. In order to develop an efficient shoot regeneration protocol, the leaf explants of D. trojana were cultured on Murashige and Skoog (MS) medium containing 6-benzyl adenine (0.1, 0.5, 1.0, 3.0, 5.0 mg/L) and α-naphthalene acetic acid (0.1, 0.5, 1.0 mg/L), 3% (w/v) sucrose and 0.8% (w/v) agar. The highest number of regenerated shoots was obtained from leaf explants that were cultured on MS medium with 3.0 mg/L BA+0.1 mg/L NAA. Regenerated shoots were rooted on MS medium without plant growth regulators. Rooted plants (2–3 cm) were separately transferred to pots containing a mixture of peat and perlite (2:1 v/v) and acclimatized successfully in a growth chamber.


2016 ◽  
Vol 8 (1) ◽  
pp. 412-415 ◽  
Author(s):  
Archana Rani ◽  
M. Kumar ◽  
Sanjeev Kumar

An efficient protocol for callus induction of Withania somnifera through in vitro culture of shoot apex and leaf explant was standardized. Of the various combinations of phytohormones evaluated, MS media supplemented with 6-furfuryl aminopurine (KIN) 0.5 mg/l + 2,4-dichlorophenoxy acetic acid (2, 4-D) 2.0 mg/l was found to be bestfor mean callus induction (86%) in leaf explants after 6 weeks of culture and in case of shoot apex expant the best response and growth of callusing was observed on MS medium supplemented with 2,4-D 1.0 mg/l + BAP 2.0 mg/l (77%).The response of callus growth increases gradually with the reductions in concentration of KIN in culturemedium of both the explants. This protocol might be used in further research for mass propagation of W. somnifera via indirect regeneration methods.


Plants ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 246
Author(s):  
Shipra Rani Jha ◽  
Ruphi Naz ◽  
Ambreen Asif ◽  
Mohammad K. Okla ◽  
Walid Soufan ◽  
...  

An efficient protocol of plant regeneration through indirect organogenesis in Viola serpens was developed in the present study. Culture of leaf explants on MS (Murashige and Skoog) medium supplemented with 2.0 mg/L 6-benzyladenine and 0.13 mg/L 2,4-dichloro phenoxy acetic acid. Adventitious shoot formation was observed when calli were transferred on to MS medium containing 0.5 mg/L α-naphthalene acetic acid and 2.25 mg/L kinetin, which showed the maximum 86% shoot regeneration frequency. The highest root frequency (80.92%) with the 5.6 roots per explant and 1.87 cm root length was observed on MS medium supplemented with 2 mg/L indole-3-butyric acid. The plantlets were transferred to the mixture of sand, coffee husk and soil in the ratio of 1:2:1 in a pot, and placed under 80% shade net for one month. It was then transferred to 30% shade net for another one month, prior to transplantation in the field. These plantlets successfully acclimatized under field conditions. A Sequence Characterized Amplified Region (SCAR) marker was also developed using a 1135 bp amplicon that was obtained from RAPD (Random Amplification of Polymorphic DNA) analysis of six accessions of V. serpens. Testing of several market samples of V. serpens using the SCAR marker revealed successful identification of the genuine samples of V. serpens. This study, therefore, provides a proficient in vitro propagation protocol of V. serpens using leaf explants and a SCAR marker for the authentic identification of V. serpens. This study will be helpful for conservation of authentic V. serpens.


2009 ◽  
Vol 36 (No. 4) ◽  
pp. 140-146 ◽  
Author(s):  
J.K. Kanwar ◽  
S. Kumar

The influence of growth regulators, explants and their interactions on in vitro shoot bud formation from callus was studied in <I>Dianthus caryophyllus</I> L. The leaf and internode explants were cultured on Murashige and Skoog (MS) medium containing different concentrations of growth regulators. The highest callus induction was observed with 2 mg/l 2,4-dichlorophenoxy acetic acid (2,4-D) and 1 mg/l benzyl adenine (BA). Out of twenty seven shoot regeneration media tested, only 2 mg/l thidiazuron (TDZ) and zeatin alone or in combination with naphthalene acetic acid (NAA) and/or indole acetic acid (IAA) could differentiate calli. The highest average number of shoots was observed with 2 mg/l TDZ and 1 mg/l IAA. Significant differences were observed in calli producing shoots and number of shoots per callus in the explants of leaf and internode. The shoots were elongated and multiplied on MS medium supplemented with 1 mg/l BA and solidified with 1% agar. The shoots were rooted and hardened with 76% survival success in pots after six weeks of transfer to the pots.


2020 ◽  
Vol 8 (1) ◽  
pp. 1
Author(s):  
Sadia Afrin Jui ◽  
Md. Mijanur Rahman Rajib ◽  
M. Mofazzal Hossain ◽  
Sharmila Rani Mallik ◽  
Iffat Jahan Nur ◽  
...  

The experiment was designed to evaluate the effect of growth regulators on leaf explant of Gerbera for callus induction. Various kinds of plant growth regulators such as 6-Benzylaminopurine (BAP), α-Naphthalene acetic acid (NAA), 2, 4-Dichlorophenoxyacetic acid (2, 4-D), Indole-3-acetic acid (IAA) were used to initiate cultures. These were added to Murashige and Skoog medium in different combinations and concentrations. Leaf explants cultured on MS medium supplemented with BAP+ 2, 4-D+ IAA in T4 treatment & BAP+ 2,4-D in T5 treatment showed the best results for callus induction. On the other hand callus was induced early in the combination of BA+ 2,4-D + IAA hormone in T5, T9 & T8 treatment respectively. The rate of callus induction was very low in BA + NAA combinations but it was much earlier.   


2016 ◽  
Vol 41 (3) ◽  
pp. 521-528
Author(s):  
MR Kabir ◽  
S Ahmed ◽  
MAY Akhond

Seedling-derived cotyledonary nodes and hypocotyl explants of BARI Dherosh- 1 were cultured in vitro on MS medium supplemented with varying concentrations of 2, 4-Dichlorophenoxy acetic acid (2, 4-D), 6- Benzylaminopurine (BAP), Thidiazuron (TDZ), BAP with 1-Nepthaleneacetic acid (NAA), BAP with Indole 3-butyric acid (IAA) and Zeatin with IAA along with a control. Shooting response (100%) with callus was only observed from cotyledonary nodes on thidiazuron (TDZ) where hypocotyls produced only callus or callus with roots on different concentrations of plant growth regulators. Considering the shooting response, the cotyledonary nodes of BARI Dherosh-1 were cultured on various concentrations of TDZ for regeneration. The highest percentage (64.0) with maximum number (6.8) of shoots per explant were observed in 0.044 ?M TDZ in 8.4 days. The regenerated shoots were rooted on ½ strength MS, MS supplemented with 2.46 ?M IBA and 0.53 ?M NAA. The highest percentage (83.3) and minimum days (9.7) required for root induction were recorded in 2.46 ?M IBA. The rooted plantlets were transferred to soil and hardened in the plastic pots under green house conditions. The rooted shoots grew normally under natural conditions following acclimatization.Bangladesh J. Agril. Res. 41(3): 521-528, September 2016


Biologia ◽  
2014 ◽  
Vol 69 (5) ◽  
Author(s):  
Ziba Bakhtiar ◽  
Mohammad Mirjalili ◽  
Ali Sonboli ◽  
Mahdi Farimani ◽  
Mahdi Ayyari

AbstractThymus persicus (Ronniger ex Rech. f.) Jalas is a valuable and endangered natural source of antitumor pentacyclic triterpenoids, i.e., betulinic acid, oleanolic acid and ursolic acid, which grows in northwest Iran. As the plant has a low propagation rate in nature, a suitable method for in vitro-propagation is needed. With the aim of identifying a suitable system for regenerating T. persicus via direct organogenesis, Murashige & Skoog (MS) medium supplemented with different plant growth regulators (PGRs) was tested. In vitro-grown shoot tips were exposed to the cytokinins 6-benzylaminopurine (BAP), kinetin (KN), and thidiazuron (TDZ), alone or in combination with the auxins 1-naphthalene-acetic acid (NAA), 2,4-dichlorophenoxyacetic (2,4-D), indole-3-butyric acid (IBA) and indole-3-acetic acid (IAA). The highest shoot formation (7.1 ± 0.9) was obtained with a medium fortified with 8.9 μM BAP plus 2.7 μM NAA. Regenerated shoots were easily rooted on the different tested media, with the most abundant (16.6 ± 1.4) and strongest roots obtained on half-strength MS medium containing 2.5 μM IBA. The rooted plantlets were successfully acclimatized (76.6%) in a greenhouse before transference to natural conditions. Homogeneity and phytochemical productivity of the in vitro regenerated plantlets were confirmed by random amplified polymorphic DNA (RAPD) profiles and high performance liquid chromatography (HPLC), respectively.


2019 ◽  
Vol 6 (49) ◽  
Author(s):  
A. S. Abubakar ◽  
R. N. Pudake

Sterilization procedure, media composition, explants selection and control of physical environment are critical for successful cultures and callus induction with surface sterilization being very challenging in most plants. Five different sterilization methods were evaluated to come up with the best for subsequent use to establish an in vitro regeneration method for the induction of callus in Curcuma caesia using excised leaf and rhizome explants. Murashige and Skoog (MS) media supplemented with various concentration of 2,4-Dichlorophenoxy acetic acid (2,4-D)/Indole-3-acetic acid (IAA) (0.5- 5.0mg/L), singly or in combination with Benzyl aminopurine (BAP)/Kinetin (KIN) (0.1-5.0mg/L), 0.3% sucrose and 0.08% agar were used. The result of the sterilization procedures showed 15% NaHClO3 (5min) + 70% Ethanol (30s) + 0.1% HgCl2 (5min) to be the most effective in controlling contamination in C. caesia among all the treatments tested. The response to callus induction was found to depend on the type of explants used and growth regulators combination. Leaf explants gave the highest percentage of callus induction. Highest percentage of callus induction (66.70%) was obtained in the growth regulator combination of 2, 4-D (0.5mg/L) + BAP (0.1mg/L) and least (14.29%) in IAA (2.0mg/L) + BAP (0.5mg/L). Equal and higher concentration of 2, 4-D + BAP of 5.0mg/L each also provided better result (40.00%). No callus was obtained in all the single concentration of 2, 4-D used.


2007 ◽  
Vol 44 (07) ◽  
pp. 514-519 ◽  
Author(s):  
Ved Prakash Pandey ◽  
Jose Kudakasseril ◽  
Elizabeth Cherian ◽  
George Patani ◽  

Two different methods of in vitro multiplication of Rauwolfia serpentina from nodal explants were compared viz. multiplication via callus morphogenesis and that via shoot proliferation from axillary buds. The second method was found to be far better. The optimum shoot proliferation occurred on Murashige and Skoog (MS) medium supplemented with 1 mg/L naphthalene acetic acid (NAA) and 2 mg/L of benzyl aminopurine (BAP). The best rooting of shoots occurred on MS medium containing 4% sucrose and 1 mg/L of NAA. Solid and liquid MS media were found to be similar in supporting shoot proliferation. The plants produced were successfully hardened and established in soil. An easy, reliable and reproducible protocol was developed for in vitro micropropagation of Rauwolfia serpentina from nodal explants.


2019 ◽  
Vol 11 (1) ◽  
pp. 45-50 ◽  
Author(s):  
Ashutosh PATHAK ◽  
Aruna JOSHI ◽  
Asha SHARMA

Portulaca quadrifida (Portulacaceae) is an annual succulent herb having medicinal value and is consumed as a vegetable or salads in India. In the present study, leaf explants were inoculated on Murashige and Skoog’s (MS) medium fortified with sucrose (3%) and combinations of N6-benzyladenine (6-BA) and kinetin (KIN) individually and in combination with 1-naphtalene acetic acid (NAA). Rapid regeneration was observed in medium fortified with combinations of 6-BA (8 µM) and NAA (1 µM) which formed 19.40 ± 0.64 shoots with 100% response. Variation in sucrose concentrations (4-6%) was tried but it failed to increase the shoot number. When the optimized medium was fortified with different carbon sources viz. dextrose, glucose and maltose, they could not evoked better response and sucrose proved to be more effective for regeneration. Rooting of in vitro shoots was achieved in ½MS + sucrose (1%) + indole-3-butyric acid (IBA, 2 µM).


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