scholarly journals Effects of N-Benzyl -9-(2-tetrahydropyranyl and Indole –3-Acetic Acid In Vitro Culture of Bauhinia purpurea L.

Author(s):  
Belai Meeta Suwal Singh

<p>Bauhinia purpurea L. is a leguminous plant moderate sized tree with multipurpose value. It is distributed in sub-Himalayan tracts. It has been cultivated in the plain region up to the elevation of 1350 m. Mature seeds of Bauhinia purpurea L. were cultured on half strength Murashige and Skoog (1962) (MS) medium. Nodal explants obtained from germinated seedlings were cultured on MS medium containing 0.5 M BAP produced multiple shoots which were used for experimental purposes. Nodal explants obtained from cultured were subcultured on different concentrations of N-Benzyl -9-(2-tetrahydropyranyl) (BPA) and Indole-3acetic acid (IAA). The best proliferation of nodes and shoots were observed on the MS medium supplemented with 0.5 M BPA and 0.1 M IAA. After 8 weeks of culture, the propagated plants were acclimatized and transferred to the sand box containing 1:1 soil and sand. Well rooted plants were then established in the field. All the data collected were worked out statistically with SPSS, a system of analytical procedure.</p>

2007 ◽  
Vol 7 ◽  
pp. 119
Author(s):  
Belai Meeta Singh ◽  
Cristoph Wawrosch ◽  
Sanu Devi Joshi ◽  
Brigitte Kopp

Mature seeds of Butea buteiformis were cultured on half strength Murashige and Skoog (1962) medium. Nodal cuttings were used as explants from in vitro growing plants for experimentation. Plants were well grown on the medium supplemented with benzylaminopurine (BAP) 0.5 µM / l and indole-3-acetic acid (IAA) 1.0 µM/ l. Such propagated plants were acclimatized very well and transferred to the field. All the collected data were worked out statistically with SPSS, a system of analytical procedure. <i>Nepal Journal of Science and Technology</i> Vol. 7, 2006


2009 ◽  
Vol 18 (1) ◽  
pp. 17-24
Author(s):  
Md. Nesawar Miah ◽  
Shahina Islam ◽  
Syed Hadiuzzaman

Efforts have been made to establish a protocol for direct multiple shoot regeneration from both in vitro grown seedlings and mature plants of Citrus macroptera. Both nodal and shoot tip explants taken from in vitro grown seedlings were cultured in MS supplemented with different concentrations of BAP and Kn either singly or in combinations. Both these explants are capable to regenerate and produce in vitro multiple shoots. Maximum number of shoots were obtained from nodal explants in MS supplemented with 1.0 mg/l BAP. BAP alone was found superior to Kn. On the other hand, only nodal explants from mature plants were used and 1.0 mg/1 BAP was also found best suitable for shoot induction and multiplication. Ex vitro rooting in pot soil (mixed with biogas slurry derived from cow-dung) was most successful compared to in vitro rooting in half strength of MS supplemented with different concentrations of NAA and IBA. Key words: In vitro, Shoot regeneration, Citrus macroptera D.O.I. 10.3329/ptcb.v18i1.3246 Plant Tissue Cult. & Biotech. 18(1): 17-24, 2008 (June)


2010 ◽  
Vol 5 (12) ◽  
pp. 1934578X1000501
Author(s):  
Sanjog T. Thul ◽  
Arun K. Kukreja

A simple, repeatable and efficient protocol for direct multiple shoot regeneration from internodal explants has been defined in peppermint ( Mentha x piperita var. Indus). In vitro regenerated shoots of peppermint were excised into 4 to 8 mm long internodes and cultured on Murashige and Skoog's medium supplemented with different cytokinins. In the hormonal assay, 3.0 mg L-l zeatin or 6-isopentenyl adenine independently supplemented to half strength MS medium exhibited multiple shoot regeneration, while thiaduzorn (0.1-3.0 mg L−1) showed no morphogenetic effect. A maximum of 85% in vitro cultured explants showed multiple shoot formation with an average of 7 shoots per explant on MS medium supplemented with zeatin. Multiple shoots were initiated within three weeks of cultivation. Internodes with regenerated multiple shoots were transferred to half - strength MS medium without supplementing with any plant growth hormone for shoot elongation and rhizogenesis. Rooted plants acclimatized and grew to maturity under glasshouse conditions. The plantlets developed were phenotypically identical to the parent plant and exhibited 96 % survival.


2011 ◽  
Vol 39 (1) ◽  
pp. 84 ◽  
Author(s):  
Kantamaht KANCHANAPOOM ◽  
Suttinee JINGJIT ◽  
Kamnoon KANCHANAPOOM

A protocol for the regeneration of Gypsophila paniculata L. using nodal explants from 2-month-old field grown plants was established. The induction of multiple shoots was best obtained on Murashige and Skoog (MS) medium supplemented with 13.3 μM BA. Callus growth was observed on MS medium containing 44.3 μM BA. Calluses were transferred to MS medium supplemented with 2, 4-D (4.5, 13.5, 22.6 μM), NAA (5.3, 16.1, 26.8 μM) or BA (4.4, 13.3, 22.1 μM) for 2 months to induce shoot formation. After 6 weeks of initial culture, multiple shoots were regenerated from calluses cultured on MS medium supplemented with 13.3 μM BA. All regenerated shoots produced roots on 16.1 μM NAA containing MS medium within 4 weeks. Rooted plantlets were hardened and established in pots at 100% survival. For induction of in vitro flowering, regenerated shoots could be induced to flower efficiently when cultured on MS medium containing 13.3 μM BA and 50 g/l sucrose.


Author(s):  
Bidyut Kumar Sarmah ◽  
Trishna Konwar ◽  
Borsha Borah ◽  
Arun Kumar Handique ◽  
Sumita Acharjee

An efficient and quick in vitro regeneration protocol was developed for black gram (Vigna mungo) using wounded embryonic axis with cotyledon as explant. Murashige and Skoog (MS) medium supplemented with 4.44 μM BAP and 2.32 μM Kinetin was found to be effective in producing maximum number (mean 7.80) of multiple shoots. The individual shoots elongated to 4.5 cm when MS medium was supplemented with 2.89 μM GA3 along with 0.44 μM BAP and 0.46 μM KIN. A novel in vitro rooting technique was also optimized for black gram using half-strength liquid MS medium supplemented with 1.34 μM NAA. The shoots in this medium produced the highest number (mean 7.50) of roots with root length of 6.02 cm. The plantlets were transferred to soil mixture and placed in greenhouse where more than 80% successfully grew to maturity. The same protocol was successfully used to generate transgenic black gram lines carrying Bt-Cry2Aa gene through Agrobacteriummediated transformation with a transformation efficiency of 0.42%. The rooted T0 plants grew to maturity and produced T1 seeds with the presence and expression of transgene in T1 plants. Thus, we have standardized an in vitro regeneration protocol suitable for generation of stable transgenic black gram plants.


1970 ◽  
pp. 08-12
Author(s):  
Sabina Yesmin, Mst Muslima Khatun, Tanzena Tanny ◽  
Anica Tasnim Protity ◽  
Md Salimullah ◽  
Iftekhar Alam

An in vitro regeneration protocol was developed for two high-yielding eggplant varieties (Solanum melongena L.) namely BARI begun-4 and BARI begun-6. Multiple shoots were regenerated from cotyledonary explants through organogenesis with growth regulators of different combinations and concentrations.  The best response towards multiple shoot regeneration was achieved from cotyledon explants on MS media complemented with 1 mg/l BAP + 0.2 mg/l IAA in both the two varieties of eggplant. Elongation of shoots was achieved on hormone free MS medium. Regenerated shoots of both the varieties produced   active in vitro root system on half strength of MS medium supplemented with 0.2 mg/l IBA.  The in vitro grown plantlets were acclimatized in soil, grew up to maturity, flowered, fruited and produced seeds as normal healthy plant like the control.


2017 ◽  
Vol 9 ◽  
Author(s):  
Rathnaprabha D ◽  
Muralikrishna N ◽  
Raghu E ◽  
Yashodhara V ◽  
Sadanandam A

<p class="Default"><span>An efficient and reproducible protocol is established for rapid <em>in vitro</em> multiplication of an endangered, valuable medicinal plant, <em>Butea monosperma </em>(Lam.) Taub. Var. <em>lutea</em>, through cotyledonary nodes of mature seeds. Among various cytokinins tested, high frequency of direct shoot regeneration was induced on Murashige and skoog (MS) medium supplemented with BAP, which found to be more effective and showed optimal response at 2 mg/L with a maximum number of </span><span>8.35±0.32 multiple shoots per explant. Proliferation of shoots was established by repeated subculturing on to same regeneration medium with 2-3 weeks of time interval. Rooting of regenerated shoots was achieved after 3 weeks of culture on MS medium containing 1 mg/L IBA. <em>In vitro</em> raised plantlets were transferred to pots containing sterilized soil and vermiculate mixture in 1:1 ratio and then shifted to greenhouse. Well established plantlets exhibited 75% survival rate.</span></p>


2013 ◽  
Vol 47 (4) ◽  
pp. 433-436
Author(s):  
Balasundaram Janarthanam ◽  
Sumathi Ethiraj

A protocol for multiple shoot induction and plant regeneration from nodal explants of Ocimum citriodorum has been developed. Nodal explants inoculated on Murashige and Skoog (MS) medium supplemented with 1.0 mg/l Benzyl adenine (BAP) and 0.025 mg/l indole -3- acetic acid (IAA) showed better growth response (80%) and produced 15.2 ± 1.28 shoots per explant with an average length of 6.17 ± 0.29 cm after 35 days. Roots were induced after transfer to half strength MS medium supplemented with 0.5 mg/l Indole -3- butyric acid (IBA) produced 6.0 ± 1.0 roots with an average height of 4.9 ± 0.26 cm after 30 days. Plantlets with well developed root and shoot systems were successfully acclimated (80 %) and established in earthen pots containing mixture of soil, vermiculite and farm yard manure (1:1:1). Bangladesh J. Sci. Ind. Res. 47(4), 433-436, 2012 DOI: http://dx.doi.org/10.3329/bjsir.v47i4.8547


2016 ◽  
Vol 4 (2) ◽  
pp. 1-8 ◽  
Author(s):  
P Saha ◽  
M Afrin ◽  
AKM Mohiuddin ◽  
AM Shohael

In vitro regeneration protocol for grass pea (Lathyrus sativus L.) was optimized using different concentrations and combinations of growth regulators. Direct shoot regeneration obtained through shoot organogenesis from different explants of grass pea cultured on MS medium supplemented with Gamborg B5 vitamin containing 6-benzylaminopurine (BAP), Thidiazuron (TDZ) and ?-naphthalene acetic acid (NAA). Highest percentage of shoots were obtained at 4.0 mg/l of BAP on nodal explants. Stunted multiple shoots were developed from nodal explants while 1.5 mg/l TDZ was used. About 56% of direct shoots were also obtained, while the combination of BAP (4.0 mg/l) and NAA (0.5 mg/l) were used. Regenerated plantlets were rooted most effectively (40%) in rooting medium containing half strength of MS basal medium containing 1.0 mg/l NAA. Well rooted plantlets were further successfully acclimatized to ambient humidity level and grown in controlled environment until hardening.Jahangirnagar University J. Biol. Sci. 4(2): 1-8, 2015 (December)


2021 ◽  
Vol 15 ◽  
pp. 44-51
Author(s):  
R. Devendra Prasad ◽  
Shreeti Pradan ◽  
Mukti Ram Poudel ◽  
Bijaya Pant

Pholidota articulata is an epiphytic orchid mostly used in ornamental cut/pot flower and in traditional medicine. As it has high ornamental and medicinal values, its population from natural habitats is decreasing, therefore, it is listed in the Appendix-II of Convention on International Trade in Endangered Species (CITES). The objective of the present study is to obtain the in vitro plants of P. articulata from seed culture to conserve its germplasm. The in vitro seed germination was carried out in different strengths of Murashige and Skoog (MS) and Knudson C (KnC) medium supplemented with various plant hormones. On the half-strength of MS medium, seeds were started to germinate after 4 weeks of primary culture and they were developed into protocorms with first leaf primordium earlier than on the other medium. Therefore, in vitro developed protocorms were sub-cultured on the half-strength of MS medium supplemented with different concentrations of 6-benzylaminopurine (BAP), gibberellic acid (GA3) and α-naphtalene acetic acid (NAA). They were successfully developed into shoots on the 1.5 mg/l BAP supplemented half-strength of MS medium. Later, they were inoculated on the half-strength of MS medium supplemented with different concentration of α-napthalene acetic acid (NAA), indole-3-acetic acid (IAA) and indole-3-butyric acid (IBA) for the root formation, where IBA supplemented medium was found effective for the development of roots. Thus, this study provides a reliable protocol for non-symbiotic seed germination and plant production, and reveals that seed-derived protocorms are good explants for the in vitro mass propagation for conservation and sustainable utilization in horticulture.


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