In vitro regeneration of loblolly pine and random amplified polymorphic DNA analyses of regenerated plantlets

2001 ◽  
Vol 20 (2) ◽  
pp. 163-168 ◽  
Author(s):  
W. Tang
2017 ◽  
Vol 28 (2) ◽  
pp. 100-108
Author(s):  
MS Haque ◽  
T Biswas ◽  
MS Islam ◽  
MS Hossain

Though direct systems of regeneration through culture of organized meristems usually produce true-to-type plants, variations in the progenies have widely been reported. Fiber producing kenaf plants (Hibiscus cannabinus L.) were regenerated from petiole, hypocotyls and cotyledonous petiole explants on MS medium containing BAP (benzyl amino purine) and NAA (?-napthaleneacetic acid) followed by assessment of regenerants by RAPD markers to detect somaclonal variation among them. Genomic DNA from twenty seven plants [three mother plants and two clones (clone 1 and 2) from each mother plant with three replications] was subjected to random amplified polymorphic DNA (RAPD) analysis. Fifteen polymorphic loci amplified by three decamer random primers were used to estimate genetic diversity and relatedness in mother plants and their regenerated plantlets. The results showed some degree of polymorphism between mother plants and their regenerated plantlets as well as between regenerated plantlets indicating somaclonal variation among the regenerants. These suggest that the RAPD technique could effectively be used to detect somaclonal variation in H. cannabinus and could be promising for the detection of markers associated with desirable traits.Progressive Agriculture 28 (2): 100-108, 2017


2017 ◽  
Vol 4 (2) ◽  
pp. 52-56
Author(s):  
Mallika Devi T

In the present study the protocol for callus induction and regeneration in Azima tetracantha has been developed in culture medium. The young apical leaf explants were used for callus induction on MS medium containing BAP and NAA at 1.0 and 0.4mgl-1 respectively showed maximum callus induction (73%). The amount of callus responded for shoot formation (74%) was obtained in the MS medium containing BAP (1.5 mgl-1) and NAA (0.3mgl-1).The elongated shoots were rooted on half strength medium supplemented with IBA (1.5 mgl-1) and Kn (0.4 mgl-1) for shoots rooted. Regenerated plantlets were successfully acclimatized and hardened off inside the culture and then transferred to green house with better survival rate.


HortScience ◽  
2016 ◽  
Vol 51 (4) ◽  
pp. 398-402 ◽  
Author(s):  
Mohammed Elsayed El-Mahrouk ◽  
Yaser Hassan Dewir ◽  
Yougasphree Naidoo

The present study reports a simple protocol for in vitro regeneration of Aglaonema ‘Valentine’ using axillary shoot explants for rapid multiplication and production of true-to-type plants. Different concentrations of benzyladenine (BA; 0, 1, 3, 5, and 7 mg·L−1), kinetin (Kin; 0, 1, 3, 5, and 7 mg·L−1), thidiazuron (TDZ; 0, 0.5, 1.0, 1.5, and 2.0 mg·L−1), naphthalene acetic acid (NAA; 0, 0.5, and 1.0 mg·L−1), and indole-3-butyric acid (IBA; 0, 0.5, and 1.0 mg·L−1) were used for shoot regeneration. The highest shoot proliferation (5.0) was obtained on Murashige and Skoog (MS) medium supplemented with 1.5 mg·L−1 TDZ and 1 mg·L−1 NAA. In vitro rooting was easily achieved with 100% at all concentrations of NAA and IBA supplemented to half- or full-strength MS medium. Regenerated plantlets were acclimatized in greenhouse with 100% survival rate. Randomly amplified polymorphic DNA (RAPD) analysis confirmed the genetic fidelity of the regenerated plantlets and mother plant.


2012 ◽  
Vol 47 (2) ◽  
pp. 211-216
Author(s):  
KK Paul ◽  
MA Bari

An efficient in vitro regeneration protocol was developed in medicinal aroid, Ghetkachu (Typhonium trilobatum Schott) using field grown corm bud explant. Highest percentage (75 %) of direct multiple shoot regeneration obtained in MS media supplemented with 5.0 mgL-1BAP + 1.5mg L-1NAA. Callus formation occur (80 %) in MS media containing 0.5mgL-1BAP + 2.0mgL-1NAA. The appearance of calli was white, creamy white light green in colour and the texture of calli were soft, friable and semi hard and compact. Shoot regeneration (85 %) obtained from calli in MS medium having 5.0mgL-1BAP +1.0mgL-1NAA. The regenerated plantlets were successfully acclimatized with loamy fertile soil and survived cent percentage in natural condition.   DOI: http://dx.doi.org/10.3329/bjsir.v47i2.11454   Bangladesh J. Sci. Ind. Res. 47(2), 211-216, 2012  


Biologia ◽  
2013 ◽  
Vol 68 (4) ◽  
Author(s):  
Sunil Senapati ◽  
Subhashree Aparajita ◽  
Gyana Rout

AbstractA highly efficient protocol for in vitro regeneration of an indigenous, endangered medicinal plant Celastrus paniculatus was achieved using nodal explants. Murashige and Skoog (MS) basal medium supplemented with 0.5 mg/L 6-benzylaminopurine (BAP) and 0.1 mg/L naphthaleneacetic acid (NAA) showed maximum percentage of shoot multiplication (83.4%) with 8.2 shoots/explants. Maximum rooting of 73.3% with 4.8 roots/shoot was achieved on half-strength MS media supplemented with 0.5 mg/L indole-3-acetic acid (IAA) and the percentage of survival was 91% after acclimatization. Random amplified polymorphic DNA (RAPD) and inter simple sequence repeat (ISSR) marker study confirmed genetic stability for in vitro raised explants by showing 100% monomorphism. High multiplication rate associated with genetic stability ensure the efficacy of the present in vitro clonal propagation protocol of this important medicinal plant species.


Author(s):  
Shikha Sharma ◽  
Geetika Gambhir ◽  
D. K. Srivastava

In vitro regeneration of pea explants (Pisum sativum L. var. ‘Lincon’) was done in 49 different combinations and concentrations of BAP, BAP and NAA, BAP and IBA, TDZ, TDZ and Adenine for shoot regeneration from hypocotyl, root, leaf and cotyledonary node. High frequency shoot regeneration was obtained in hypocotyl (81.43%), root(83.53%) and cotyledonary node(72.76%) on MS medium supplemented with 4.50 mg/l BAP and 1.86mg/l NAA, 2.00mg/l TDZ and4.50 mg/l BAP and 1.86mg/l NAA respectively. No shoot regeneration was obtained from leaf explants on any of the combination used. Shoot elongation was observed on the same medium used for shoot regeneration respectively.MS medium supplemented with 0.20 mg/l IBA was found best for root regeneration from in vitro raised shoots. The plantlets were able to regenerate within 6-7 weeks. The regenerated plantlets were acclimatized in pre-sterilized cocopeat.


1970 ◽  
Vol 35 (3) ◽  
pp. 465-473 ◽  
Author(s):  
MA Malek ◽  
MA Mannan ◽  
D Khanam ◽  
MH Molla ◽  
M Khatun

An efficient protocol was developed for in vitro plant regeneration and multiplication through callus culture in pointed gourd. Among the explants, highest percentage of cotyledon explants (92.00%) produced callus when this explant cultured in MS medium supplemented with NAA (0.1, 0.5, 1.0, 1.5, and 2.0 mg/l) and 2, 4-D (0.1, 0.5, 1.0, 1.5, and 2.0 mg/l). The highest number of shoots per explant was observed in MS + 0.5 mg/l BAP + 0.5 mg/l NAA followed by 1.0 mg/l BAP + 0.5 mg/l NAA when inter-node derived callus cultured in MS medium. Among the explants derived calli from leaf, inter-node and cotyledon in in vitro regeneration study, inter-node appeared as the most suitable explant for callusing and plant regeneration. The best response towards root induction was achieved on half MS medium supplemented with 0.5 mg/l NAA. The regenerated plantlets were successfully established in prepared earthen soil pot. Keywords: In vitro regeneration; pointed gourd. DOI: 10.3329/bjar.v35i3.6453Bangladesh J. Agril. Res. 35(3) : 465-473


2019 ◽  
Vol 29 (2) ◽  
pp. 151-159
Author(s):  
M. Naimur Rahman Sumon ◽  
Tanjina Akhtar Banu ◽  
Sanjida Rahman Mollika ◽  
Barna Goswami ◽  
Mousona Islam ◽  
...  

An efficient and reproducible in vitro regeneration protocol was established for two varieties of ginger (Z. officinale Roscoe) namely, BARI Ada-1 and Chinese ginger accession number SG876). In case of BARI Ada-1 best result was obtained on MS supplemented with 2.0 mg/l BAP, 0.5 mg/l Kn and 0.5 mg/l NAA. In this combination, 95% rhizome bud explants responded within 6 - 8 days and mean number of shoots per explant was 8.79 ± 0.42. On the other hand, Chinese ginger showed best (90%) shoot regeneration response from the same explants on the same medium and hormonal combinations but in exchange of 0.25 mg/l NAA. In this hormonal composition shoot initiation started within 7 - 8 days of culture and mean number of shoots/explant was 6.83 ± 0.71 after 24 - 27 days of culture. Maximum root induction (90 and 80%) was found on MS supplemented with 0.5 mg/l IBA and 0.5 mg/l NAA in case of BARI Ada-1 and Chinese ginger, respectively. The in vitro regenerated plantlets were successfully transplanted into the soil after acclimatization.


Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2820
Author(s):  
Ahmed A. Qahtan ◽  
Mohamad Faisal ◽  
Abdulrahman A. Alatar ◽  
Eslam M. Abdel-Salam

Ruta chalepensis L., an evergreen shrub in the citrus family, is well-known around the world for its essential oils and variety of bioactivities, indicating its potential medicinal applications. In this study, we investigated the effect of different culture conditions, including plant growth regulators, media types, pH of the medium, and carbon sources, on in vitro regeneration from nodal explants of R. chalepensis. Following 8 weeks of culture, the highest percentage of regeneration (96.3%) and maximum number of shoots (40.3 shoot/explant) with a length of 4.8 cm were obtained with Murashige and Skoog (MS) medium at pH 5.8, supplemented with 3.0% sucrose and 5.0 µM 6-Benzyladenine (BA) in combination with 1.0 µM 1-naphthaleneacetic acid (NAA). For rooting, individually harvested shootlets were transferred on ½ MS (half-strength) supplemented with IAA (indole-3-acetic acid), IBA (indole 3-butyric acid), or NAA, and the best response in terms of root induction (91.6%), number of roots (5.3), and root mean length (4.9 cm) was achieved with 0.5 µM IBA after 6 weeks. An average of 95.2 percent of healthy, in vitro regenerated plantlets survived after being transplanted into potting soil, indicating that they were effectively hardened. DNA assays (PCR-based markers) such as random amplification of polymorphic DNA (RAPD) and directed amplification of minisatellite-region (DAMD) were employed to assess in vitro cultivated R. chalepensis plantlets that produced a monomorphic banding pattern confirming the genetic stability. Additionally, no changes in the flow cytometric profile of ploidy between regenerated plantlets and donor plants were detected. Regeneration of this valuable medicinal plant in vitro will open up new avenues in pharmaceutical biotechnology by providing an unconventional steadfast system for mass multiplication and might be effectively used in genetic manipulation for enhanced bioactive constituents.


2017 ◽  
Vol 17 (6) ◽  
pp. 1-11
Author(s):  
Kamalakshi Devi ◽  
Manab Bikash Gogoi ◽  
Salvinder Singh ◽  
Bidyut Sarmah ◽  
Mahendra Modi ◽  
...  

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