scholarly journals In vitro plant regeneration of lotus (Nelumbo nucifera)

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Xia Yu ◽  
Jiajing Sheng ◽  
Lingling Zhao ◽  
Ying Diao ◽  
Xingwen Zheng ◽  
...  

AbstractIn this study, an efficient and reproducible plant regeneration system for lotus (Nelumbo nucifera Gaertn.) was established using shoot apical meristems from the buds and one-week-old aseptically germinated embryos as explants. Multiple shoot clumps were induced on Murashige and Skoog (MS) basal medium supplemented with various combinations of N6-Benzylaminopurine (6-BA) and α-Naphthalene acetic acid (NAA). The maximum response was obtained with 2.22 μM 6-BA, and produced 21.33 shoots per explant after four weeks. After five subcultures, multiple shoot clumps were transferred to MS basal medium supplemented with various combinations of 3-Indolebutyric acid (IBA), NAA and sucrose for root induction. After four weeks, plantlets with well-developed roots were achieved on MS basal medium supplemented with 0.54 μM NAA and 30 g/L sucrose with 100% rooting rate. The successfully acclimated plantlets were transferred to pots with the addition of 2 g/L KMnO4 into the soils, and finally fertile plants with much bigger leaves were obtained in the greenhouse. The survival rate was 97.33%.

2018 ◽  
Vol 13 (1) ◽  
pp. 34-41
Author(s):  
Zhou Yu-qing ◽  
Zhang Meng-jie ◽  
Zhang Deng ◽  
Zhang Jun-jie ◽  
Li Jing-jian ◽  
...  

AbstractZenia insignis Chun is a large, fast-growing deciduous tree. In this study, we successfully developed a reliable and efficient protocol for the regeneration of fertile plants via callus induction from leaf segments of young Z. insignis seedlings. The best results were obtained with a medium containing 11.00 μM 6-benzyladenine (6-BA), 1.20 μM indole-3-butytric acid (IBA), and 0.45 μM 2,4-dichlorophenoxyacetic acid (2,4-D), which yielded morphogenic callus within 2 weeks at a frequency of 62.23%. We tested the effect of IBA alone and in combination with 6-BA on the bud differentiation response of Z. insignis callus. Shoots differentiated normally when cultured on differentiation medium containing 6.00 μM 6-BA and 1.20 μM IBA. Regenerated buds elongated successfully in medium containing 1.20 μM gibberellic acid (GA3). The elongated shoots were then transferred to Murashige and Skoog basal medium supplemented with various combinations of naphthalene acetic acid (NAA) for root induction; well-developed roots were achieved on MS basal medium supplemented with 0.01 μM NAA at a rooting rate of 89.23%. Rooted plantlets were successfully acclimatised to a greenhouse at a survival rate exceeding 90.00%.


2010 ◽  
Vol 20 (1) ◽  
pp. 73-79 ◽  
Author(s):  
M. F. Hasan ◽  
B. Sikdar

An efficient protocol for plant regeneration through multiple shoots induction from shoot tips of Polygonum hydropiper (L.) was established. The highest percentage (96.6) of multiple shoot induction and number of shoots (9.0) per culture were found on MS supplemented with 2.0 mg/l Kn. The induced shoots were excised and inoculated on to MS contains different concentrations of IBA or NAA for rooting. The highest percentage (90.0) of root induction and the highest number of roots per shoot (12.0) was found on MS having 1.0 mg/l IBA. Well rooted plantlets were acclimated properly and transplanted in the soil under natural condition, where cent per cent plantlets survived and grew successfully. Key words:  Polygonum hydropiper, Shoot tips, In vitro propagation D.O.I. 10.3329/ptcb.v20i1.5970 Plant Tissue Cult. & Biotech. 20(1): 73-79, 2010 (June)


2018 ◽  
Vol 17 (5) ◽  
pp. 405-411
Author(s):  
Jiraporn PALEE

To evaluate an efficient protocol for the micropropagation of Tupistra albiflora K. Larsen, the effects of N6-benzylaminopurine (BA) and naphthalene acetic acid (NAA) concentrations on multiple shoot and root induction were examined. In vitro shoots were used as the explant materials which were cultured on Murashige and Skoog (MS) agar medium supplemented with 0, 1, 2, 3 and 4 mg/L BA for 4 weeks to induce multiple shoots. It was found that the MS medium containing 3 mg/L BA induced 100 % shoot formation with the highest number of 3.2 shoots per explant (2.4-fold significantly higher than the control). For root induction, in vitro shoots were cultured on MS agar medium supplemented with 0, 1, 2, 3 and 4 mg/L NAA for 8 weeks. The results showed that the MS medium containing 1 mg/L NAA induced 100 % root formation with the highest number of 6.6 roots per explant (1.8-fold significantly higher than the control).


2018 ◽  
Vol 53 (2) ◽  
pp. 133-138 ◽  
Author(s):  
S Khan ◽  
TA Banu ◽  
S Akter ◽  
B Goswami ◽  
M Islam ◽  
...  

An efficient in vitro regeneration system was developed for Rauvolfia serpentina L. through direct and indirect organogenesis from nodal and leaf explants. Among the different growth regulators, MS medium supplemented with 2.0 mg/l BAP, 0.5mg/l IAA and 0.02mg/l NAA found best for the multiple shoot formation from nodal segments. In this combination 98% explants produced multiple shoots and the average number of shoots per explants is 13∙4. The frequency of callus induction and multiple shoot induction from leaves was highest 88% in MS medium supplemented with 2.0 mg/l BAP, where mean number of shoots/explants was 12.5. The highest frequency of root induction (80%) and mean number of roots/plantlets (10) were obtained on half strength of MS medium containing 0.2 mg/l IBA. The rooted plantlets were transferred for hardening following acclimatization and finally were successfully established in the field.Bangladesh J. Sci. Ind. Res.53(2), 133-138, 2018


HortScience ◽  
2008 ◽  
Vol 43 (7) ◽  
pp. 2138-2142 ◽  
Author(s):  
Chiu-Yueh Hung ◽  
Jiahua Xie

A method of in vitro plant regeneration for both the selenium-hyperaccumulator Astragalus racemosus ‘Cream Milkvetch’ and the nonaccumulator Astragalus canadensis ‘Canadian Milkvetch’ was developed with two induction media, M1 and M2. The M1 and M2 contain Murashige and Skoog basal medium plus vitamins, 8.07 μm N-(2-chloro-4-pyridyl)-N′-phenylurea, 2.5% (w·v−1) sucrose, 0.7% (w·v−1) agar (pH 5.7), and 0.89 μm or 3.12 μm a-naphthaleneacetic acid, respectively. In vitro cultures were initiated on these two types of media with three types of explants: cotyledons, hypocotyls, and roots. More than 93% of cultured explants from both species could form calli or calli with shoots. With regard to shoot formation, A. canadensis could produce multiple shoots from all types of explants more efficiently than A. racemosus. The highest shoot induction was approximately three shoots per explant in A. racemosus, whereas A. canadensis could reach ≈10 shoots per explant. M1 could induce more shoots than M2 no matter what type of explant was used, but the overall induction rates were no significant difference. Among the three types of explants used, the cotyledons were the best explants for shoot induction in A. canadensis, whereas hypocotyls were the best in A. racemosus. In A. racemosus, shoots could also be obtained from calli on the rooting medium containing Murashige and Skoog basal plus vitamins, 2.84 μm indole-3 acetic acid, 2.5% (w·v−1) sucrose, and 0.7% (w·v−1) agar (pH 5.7). Approximately 43% of A. canadensis shoots and 19% of A. racemosus shoots could be rooted on the rooting medium.


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.


1970 ◽  
Vol 7 (2) ◽  
pp. 253-258 ◽  
Author(s):  
A Ferdausi ◽  
UK Nath ◽  
BL Das ◽  
MS Alam

Brinjal is the second most important vegetable crop after potato in Bangladesh in respect of total areas and third in production. It also plays a vital role in the national economy as a cash crop. An experiment was conducted with two cultivars of brinjal namely Jhumky and Islampuri to observe the callus induction ability of different explants-shoot tip, hypocotyl and midrib in MS basal media supplemented with different concentrations and combinations of growth regulators. The rate of callus induction from shoot tip, hypocotyl and midrib were 82.78%, 74.88% and 78.71%, respectively. Highest rate of callus induction was found in shoot tip. Variety Islampuri showed higher rate of callus induction (80.62%). Among the treatments 2mg/l NAA showed the best performance in callus proliferation. Cytokinin (0.5 mg/l BAP) showed highest percentage of shoot regeneration (57.13%). For root induction, MS basal medium was proved to be better treatment for average number (12-15) of roots. The survival rate of transferred regenerated plantlets after hardening was higher in Jhumky (80%). Regenerated plantlets from callus of both the varieties exhibited 4-9 times higher proline, 2-3 times lower vitamin C and 2-3 times higher iron (Fe) content compared to their seed derived seedlings. This experiment showed that it is possible to develop shoot and fruit borer tolerance brinjal genotypes through somatic embryogenesis that was selected based on biochemical markers within the very short period of time. These findings will be helpful for further selection of the selected variants in field condition in the next phase of the study. Keywords: Somaclonal variants; Biochemical markers; Brinjal DOI: 10.3329/jbau.v7i2.4731 J. Bangladesh Agril. Univ. 7(2): 253-258, 2009


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