scholarly journals In vitro Plant Regeneration in Banana (Musa sp.) cv. Grand Nain

Author(s):  
Aiman Yousif ◽  
Muhammad Ijaz ◽  
Hamza Iftikhar ◽  
Aqsa Mustafa ◽  
Nerum Tasneem ◽  
...  

This study was conducted at the tissue culture laboratory in Pakistan. Suckers obtained from the banana cv. Grand Nain to explore the effects of different concentrations of BAP and IAA. After inoculation with Murashige and Skoog (MS) medium supplemented with different concentrations of 6-Benzylaminopurine (BAP) and the Indole-3- acetic acid (IAA) the suckers first turn into the brown after 5-10 days then turned into a green mass-like structure after 30 days. From this mass-like structure shoots and roots were developed. Among the different concentrations, BAP 7.5 mg/l and IAA 0.5 mg/l showed the highest number of shoots 0.75, 2.75 and 6.25 per explant and shows the highest shoot lengths which 1.03 cm, 2.45 cm and 3.40 cm respectively. IAA is essential for only roots proliferation. The roots of different lengths were produced when the concentration of IAA 0.5 mg/l was used and 2.93 cm, 4.63 cm and 5.88 cm roots length produced at 15, 30 and 45 days after occultation respectively. Then these plants were transferred to the greenhouse for hardening acclimatization with the environment, the hardening process took place, and the established plantlets are ready for planting.

HortScience ◽  
2017 ◽  
Vol 52 (7) ◽  
pp. 1000-1005 ◽  
Author(s):  
Ilse-Yazmín Arciniega-Carreón ◽  
Carmen Oliver-Salvador ◽  
María-Guadalupe Ramírez-Sotelo ◽  
Carlos Edmundo Salas

Ibervillea sonorae is a medicinal plant mainly used to treat diabetes, ulcers, and other metabolic disorders. A regeneration protocol using internode segments containing axillary buds grown on Gamborg medium (B5) supplemented with 0.5 mg·L−1 α-naphthalene-acetic acid (NAA), 0.5 mg·L−1 N6-benzyladenine (BA), and 1.0 mg·L−1 indole-3-acetic acid (IAA) successfully regenerated shoots in I. sonorae explants. The induction of organogenic calli attained 100% efficiency. The highest percent shoot production was 87.5% with a mean of 9.17 shoots per explant on day 15, and the maximum length of 5.8 cm was observed on day 21. Regenerated shoots induced roots in B5 medium supplemented with 0.5–3.0 mg·L−1 indole-3-butyric acid (IBA). The maximum rooting frequency observed in the medium containing 2.0 mg·L−1 IBA was 83.3% which promoted long, thick roots on day 21. The plantlets with emerging roots grown at the culture facility attained 50% survival after acclimatization for 30 d. The account describes a simple and efficient protocol for in vitro plant regeneration, and this micropropagation procedure offers an alternative for preservation of this medicinal plant.


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


HortScience ◽  
2017 ◽  
Vol 52 (4) ◽  
pp. 622-624 ◽  
Author(s):  
Hua Q. Zhao ◽  
Qing H. He ◽  
Li L. Song ◽  
Mei F. Hou ◽  
Zhi G. Zhang

The procedure for Heuchera villosa ‘Caramel’ propagation was investigated, which involves shoot regeneration, rooting of regenerated shoots, and acclimation of regenerated plantlets. Petioles, as explants, were cultured on MS medium supplemented with 1-naphthylacetic acid (NAA), benzylaminopurine (BA), thidiazuron (TDZ) and callus formed on all media. Shoots were observed to proliferate from callus on media with BA and NAA, whereas no shoots regenerated on media with TDZ and NAA. On media containing 0.5 or 1.0 mg·L−1 BA in combination with NAA, the regenerated shoots showed severe hyperhydricity, whereas on media containing 0.1 mg·L−1 BA in combination with NAA, the regenerated shoots grew normally. The highest shoot induction rate, 90.6%, was obtained on media containing 0.1 mg·L−1 BA and 0.01 mg·L−1 NAA. The effects of indole-3-acetic acid (IAA), indole-3-butyric acid (IBA), and NAA on rooting of H. villosa ‘Caramel’ was explored. The highest rooting rate (95%) was obtained on 1/2 MS medium containing 0.2 mg·L−1 NAA. In the subsequent acclimation experiments, about 85% of rooted plantlets survived and grew normally.


2015 ◽  
Vol 4 (4) ◽  
pp. 208
Author(s):  
Hanifah - Aini ◽  
Mansyurdin - Mansyurdin ◽  
Suwirmen - Suwirmen

The study about PLB induction of wild Vanda sumatrana Schltr. on MS media suplement with BAP and NAA and ploidisation by colchicine treatment was conducted from December 2014 until November 2015 at the Laboratory of Genetics and Cell Biology and Laboratory of Plant Physiology and Tissue Culture, Biology department, Faculty of Mathematic and Natural Science, Andalas University, Padang. The study aimed to 1) knowing the best concentration of 6-Benzyl amino purin (BAP) and α-Naphtalene acetic acid (NAA) for Protocorm Like Bodies (PLB)  induction from shoot tip of V. sumatrana, 2) knowing the PLB response of V. sumatrana to concentrations and soak period of colchicine and 3) find the effective concentrations and soak period of colchicine to induce tetraploid on PLB of V. sumatrana. Shoot tips from in-vitro cultured of V. sumatrana  were subcultured on Murashinge and Skoog (MS) medium supplement with 3 mg/l BAP + 0,5 mg/l NAA, 3 mg/l BAP and 1,5 mg/l BAP. PLB of diploid V. sumatrana from the best treatment were soaked in 0.05% and 0.1% colchicine for 24 and 48 hours respectively in MS liquid medium, as control were set PLB without colchicine treatment. The results showed that MS medium supplemented with 1.5 mg/l BAP was the best formula to induce PLB. The highest percentage of survival rate of PLB and percentage of survived PLB regenerated shoot was obtained from 0.05% colchicine with 24 hours soak period treatment. The effective treatment to induce tetraploid on PLB of V. sumatrana Schltr. was obtained from 0.05% colchicine solution for 24 hours soak period.


HortScience ◽  
2010 ◽  
Vol 45 (6) ◽  
pp. 934-938 ◽  
Author(s):  
Oscar García-Rubio ◽  
Guadalupe Malda-Barrera

A rapid shoot multiplication protocol was established for the endangered cactus Mammillaria mathildae to reintroduce it to its natural habitat. In vitro-germinated seedlings were used as the source of explants. Three explant sources (apical, lateral, and basal excised from in vitro-germinated seedlings) were tested. Shoot multiplication was induced in Murashige and Skoog (MS) medium supplemented with different 6-benzylaminopurine/indole-3-acetic acid (BA/IAA) combinations (0, 22.19, 44.39 and 0, 1.43, 2.85, 5.71, respectively). Explants developed abundant callus in the presence of any BA/IAA concentration, whereas hormone-free media produced 0.59 ± 0.11 new shoots (with a 41% callus development) from basal explants. Apical and lateral explants produced 1.14 ± 0.07 and 4.09 ± 0.13 new shoots, respectively, without callus generation. Plantlets originating from lateral explants developed a vigorous rooting system after 2 months growing on MS medium supplemented with 30 g·L−1 sucrose. Under greenhouse conditions, 98% of micropropagated M. mathildae survived. Plantlets were reintroduced in an experimental plot near to Juriquilla's wild population of M. mathildae; over 52% of the outplanted M. mathildae lot declined after 5 months. Water availability was associated with the decline of outplanted populations during the first month (43%).


2020 ◽  
Vol 44 (4) ◽  
pp. 641-648
Author(s):  
Bandita Deo ◽  
Bikram Keshari ◽  
Bikram Pradhan

The present experiment was conducted to optimize protocols for in vitro propagation of banana (Musa sp.) cv. ‘Patakpura’ (AAB), supplemented with different growth regulators. Shoot tips obtained from sword suckers were cultured aseptically on MS medium supplemented with different concentrations of cytokinins like 6-Benzylaminopurine (BAP) and Kinetin (KN) for multiplication of shootsand auxins such as indole acetic acid (IAA) and naphthalene acetic acid (NAA) for induction of roots. The best result from the initial culture was obtained from MS medium supplimented with 4 mg/l BAP + 0.5 mg/l IAA. The highest shoot fresh weight, shoot length and number of shoots per explant were recorded from MS medium supplemented with 4 mg/l BAP + 0.5 mg/l IAA + 0.25 mg/l NAA. Therefore, the MS medium supplemented with 4 mg/l BAP + 0.5 mg/l IAA + 0.25 mg/l NAA was found to be most effective and productive combination for shoot multiplication and proliferation of the culture in vitro. IAA at a concentration of 1 mg/l was found to be most suitable for rooting of the shoots. Bangladesh J. Agril. Res. 44(4): 641-648, December 2019


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.


HortScience ◽  
2005 ◽  
Vol 40 (6) ◽  
pp. 1832-1837 ◽  
Author(s):  
Donita L. Bryan ◽  
Michael A. Arnold ◽  
R. Daniel Lineberger ◽  
W. Todd Watson

Three spineless phenotypes of Acacia wrightii G. Bentham ex A. Gray were identified with aesthetic landscape potential. Experiments in seed, cutting, grafting, and tissue culture propagation were undertaken to perpetuate this desired spineless phenotype. Germination percentages for mechanically scarified seeds ranged from 33% to 94%, however yield of spineless seedlings was low (0% to 34%). Sulfuric acid scarification for 10, 20, 30, or 60 minutes hastened and unified germination compared to nontreated seeds by 7 to 8 days. Vegetative propagation was successful for softwood cuttings. Rooting measures increased with auxin (2:1 indole butyric acid to naphthalene acetic acid) concentrations from 0 to 15000 mg·L–1, with maximum rooting percentage (70%), root number (9.2), and root length (12.4 cm) per softwood cutting at 15000 mg·L–1 auxin 8 weeks after treatment. Rooting was not successful for semi-hardwood or hardwood cuttings. Whip-and-tongue or T-bud grafting was not successful. Tissue culture of shoots from in vitro germinated seedlings indicated that shoot proliferation was greatest in Murashige and Skoog (MS) medium with 15 μm zeatin. The number of shoots that rooted in vitro increased with increasing concentrations of indole-3-butyric acid from 0 to 25 μm.


2014 ◽  
Vol 8 (2) ◽  
pp. 90-94
Author(s):  
Hussein Abdullah Ahmed ◽  
Mortaza Hajyzadeh ◽  
Surendra Barpete ◽  
Sebahattin Ozcan

In plant tissue culture studies, obtaining new plantlets from different parts of plant is a very important feature with direct or indirect ways of regeneration. The plant show different regeneration capacities from species to species. In this present study, in-vitro direct shoots development from embryonic axis of cotton (Gossypium hirsutum L. cv. Lashata) were comparatively studied. Embryonic axis, embryonic hypocotyl and plumule obtained from five days old in-vitro grown seeds. All explants were cultured on MS media supplemented with 1- 4 mg/l Benzyl amino purine (BAP) + 0.1 mg/l Naphthalene acetic acid (NAA) and 3 mg/l activated charcoal. Cultured explants were kept at growth chamber with photoperiod for 16 hours light and 8 hours dark, at 25oC. Reproducible in-vitro plant regeneration was obtained from embryonic axis when cultured onto MS medium supplemented 1 mg/l BAP + 0.1 mg/l NAA and 3 g/l Activated charcoal. Shoot induction was to be noted 53.3%, 36.7% and 12.3 in embryonic axis, plumule and embryonic hypocotyl respectively. All these shoots were capable of rooting on MS medium supplemented with 0.1 mg/l NAA, and establishing in soil 3-4 weeks.


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