In vitro induction of multiple shoots and plant regeneration inVigna

1998 ◽  
Vol 34 (4) ◽  
pp. 276-280 ◽  
Author(s):  
Jayanti Sen ◽  
Sipra Guha-Mukherjee
Keyword(s):  
Plant Regeneration ◽  
Multiple Shoots ◽  
In Vitro Induction

In vitro induction of multiple shoots and plant regeneration in cotton (Gossypium hirsutum L.)

1997 ◽  
Vol 16 (9) ◽  
pp. 647-652 ◽  
Author(s):  
D. C. Agrawal ◽  
A. K. Banerjee ◽  
R. R. Kolala ◽  
A. B. Dhage ◽  
A. V. Kulkarni ◽  
...  
Keyword(s):  
Plant Regeneration ◽  
Gossypium Hirsutum ◽  
Multiple Shoots ◽  
Gossypium Hirsutum L ◽  
In Vitro Induction

In vitro induction of multiple shoots and plant regeneration in cotton (Gossypium hirsutum L.)

1997 ◽  
Vol 16 (9) ◽  
pp. 647-652
Author(s):  
D. C. Agrawal ◽  
A. K. Banerjee ◽  
R. R. Kolala ◽  
A. B. Dhage ◽  
A. V. Kulkarni ◽  
...  
Keyword(s):  
Plant Regeneration ◽  
Gossypium Hirsutum ◽  
Multiple Shoots ◽  
Gossypium Hirsutum L ◽  
In Vitro Induction

scholarly journals In vitro Propagation of Polygonum hydropiper L. from Shoot Tips

2010 ◽  
Vol 20 (1) ◽  
pp. 73-79 ◽  
Author(s):  
M. F. Hasan ◽  
B. Sikdar
Keyword(s):  
Plant Regeneration ◽  
In Vitro Propagation ◽  
Multiple Shoots ◽  
Multiple Shoot ◽  
Shoot Tips ◽  
Root Induction ◽  
Shoot Induction ◽  
Multiple Shoot Induction ◽  
Polygonum Hydropiper

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)

scholarly journals Development of an Efficient Plant Regeneration System for the Selenium-hyperaccumulator Astragalus racemosus and the Nonaccumulator Astragalus canadensis

HortScience ◽  
2008 ◽  
Vol 43 (7) ◽  
pp. 2138-2142 ◽  
Author(s):  
Chiu-Yueh Hung ◽  
Jiahua Xie
Keyword(s):  
Plant Regeneration ◽  
Basal Medium ◽  
Multiple Shoots ◽  
Shoot Formation ◽  
Naphthaleneacetic Acid ◽  
Shoot Induction ◽  
Regeneration System ◽  
Rooting Medium ◽  
Significant Difference

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.

scholarly journals Micropropagation of Anubias barteri var. Nana from Shoot Tip Culture and the Analysis of Ploidy Stability

2012 ◽  
Vol 40 (2) ◽  
pp. 148 ◽  
Author(s):  
Kantamaht KANCHANAPOOM ◽  
Panyaros CHUNUI ◽  
Kamnoon KANCHANAPOOM
Keyword(s):  
Plant Regeneration ◽  
Multiple Shoots ◽  
Shoot Tip ◽  
Ms Medium ◽  
Shoot Tip Culture ◽  
Ploidy Stability ◽  
Flow Cytometric ◽  
Regenerated Plants ◽  
Mother Plants

Plant regeneration of Anubias barteri var. Nana was achieved through organogenesis in shoot tip cultures. Multiple shoots were induced from cultured shoot tips on a modified MS (Murashige and Skoog, 1962) medium supplemented with BA and kinetin. The maximum green shoot numbers were best obtained on MS medium containing 3 mg/L BA with 5 shoots. Rooting in all regenerated shoots was promoted on MS medium devoid of plant growth regulators or kinetin singly. Acclimatization and survival when transferred to field conditions were shown to be 100% in the regenerated plants. Cytological and flow cytometric analyses of the mother plants and in vitro grown plants derived from 5 years old cultures showed no differences in ploidy level, they were all diploid (2n = 2x = 48) with a 2C peak indicating that ploidy alteration did not occur.

scholarly journals PLANT REGENERATION IN VITRO FROM THE EMBRYONIC AXIS OF COMMON AND TEPARY BEANS

HortScience ◽  
1990 ◽  
Vol 25 (9) ◽  
pp. 1070c-1070
Author(s):  
Mohamed F. Mohamed ◽  
P. E. Read ◽  
D. P. Coyne
Keyword(s):  
Plant Regeneration ◽  
White Light ◽  
Multiple Shoots ◽  
Continuous Cool ◽  
Embryonic Axis ◽  
The Other ◽  
Single Shoot ◽  
Regeneration In Vitro

Regeneration in vitro from the embryonic axis in Phaseolus sp. has not been reported. Two embryo sizes, 0.3-0.4 mm and 0.6-0.7 mm long at 10-12 and 21 days after pollination, respectively, were excised from 4 P. vulgaris (P.v.) and 2 P. acutifolius (P.a.) genotypes. The embryonic leaves and radicale were removed, and 0.1-0.2 mm of the embryonic axis was cultured on Gamborg's B5 medium with 0, 5, 10 and 20μ MBA. The cultures were incubated in the dark at 25°C for 2 weeks followed by 1 week in continuous cool white light (25μ MS-1m2) before transferring to the second medium (0, 2μ MBA and 2μ MBA + 4μ MGA3). The tissues from the larger embryos initiated a single shoot without PGR in 30% of 1 P.v. explants and 30-60% in 2 P.a. The other 3 P.v. formed roots only. Multiple shoots were initiated in all P.v. (15-60%) and in 2 P.a. (60 and 70%) with 5 or 10μ MBA. The tissues from the smaller embryos had single shoots for all genotypes (30-60%) without PGR. Multiple shoots were initiated in 50-80% and 75-90% of the explants from P.v. and P.a., respectively, with 5 or 10μ MBA. Excess callus formed with 20μ MBA and regeneration decreased. After 3 weeks on the second medium, 6-8 shoot s/P. v. and up to 15-20 shoots/Pa. explants were observed.

scholarly journals Organogenesis and Ultrastructural Features ofIn VitroGrownCanna indicaL.

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Sharifah Nurashikin Wafa ◽  
Rosna Mat Taha ◽  
Sadegh Mohajer ◽  
Noraini Mahmad ◽  
Bakrudeen Ali Ahmed Abdul
Keyword(s):  
Plant Regeneration ◽  
Multiple Shoots ◽  
Ms Medium ◽  
Canna Indica ◽  
Ultrastructural Studies ◽  
Complete Plant ◽  
Mother Plants ◽  
Rhizome Explants

An efficient protocol for micropropagation ofCanna indicaL., an economically and pharmaceutically important plant, was standardized using rhizome explants, excised from two-month-old aseptic seedlings. Complete plant regeneration was induced on MS medium supplemented with 3.0 mg/L BAP plus 1.5 mg/L NAA, which produced the highest number of shoots (73.3 ± 0.5%) and roots (86.7 ± 0.4%) after 2 weeks. Furthermore, the optimum media for multiple shoots regeneration were recorded on MS enriched with 7.0 mg/L BAP (33.0 ± 0.5%). Plantlets obtained were transplanted to pots after two months and acclimatized in the greenhouse, with 75% survival. In addition, ultrastructural studies showed that rhizomes ofin vitrogrown specimens were underdeveloped compared to thein vivospecimens, possibly due to the presence of wide spaces. Meanwhile, the leaves ofin vivospecimens had more open stomata compared toin vitrospecimens, yet their paracytic stomata structures were similar. Hence, there were no abnormalities or major differences betweenin vitroregenerants and mother plants.

In Vitro Induction of Crystals of MT Protein by Vinblastine-Colcemid in Mouse Spermatids

1974 ◽  
Vol 32 ◽  
pp. 132-133
Author(s):  
John J. Wolosewick ◽  
John H. D. Bryan
Keyword(s):  
Endoplasmic Reticulum ◽  
Smooth Endoplasmic Reticulum ◽  
Nuclear Ring ◽  
Rough Er ◽  
Distal Direction ◽  
In Vitro Induction

Early in spermiogenesis the manchette is rapidly assembled in a distal direction from the nuclear-ring-densities. The association of vesicles of smooth endoplasmic reticulum (SER) and the manchette microtubules (MTS) has been reported. In the mouse, osmophilic densities at the distal ends of the manchette are the organizing centers (MTOCS), and are associated with the SER. Rapid MT assembly and the lack of rough ER suggests that there is an existing pool of MT protein. Colcemid potentiates the reaction of vinblastine with tubulin and was used in this investigation to detect this protein.

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