Concentrations of cytokinins

An efficient regeneration protocol was established for a rare plant species, Begonia coptidifolia. Using leaf explants, adventitious shoots were induced on Murashige and Skoog (MS) basal medium using various concentrations (1.0–10.0 mM) of three cytokinins, 6-benzyladenine (BA), thidiazuron (TDZ) and kinetin (KIN). However, adventitious shoots could not be induced on MS medium supplemented with auxins [α-naphthaleneacetic acid (NAA) or 2,4-dichlorophenoxyacetic acid (2,4-D)] tested in the 1.0–10.0 mM range.

8p hanthienngao 30-11-2021 11 1   Download

The present investigation was carried out to study the influence of antioxidants on in vitro culture of Gliricidia sepium. Soft nodal stem segments were inoculated on MS medium supplemented with desired concentrations plant growth regulator such as cytokinins (BAP/Kinetin) and different antioxidants. Antioxidants viz., activated charcoal, ascorbic acid, citric acid and polyvinylpyrollidone were used to control the accumulation of phenolic compounds in the culture medium and enhance the rate of micropropagation.

6p trinhthamhodang1218 26-02-2021 11 1   Download

In vitro regeneration through seeds were studied in lime (Citrus aurantifolia) by culturing lime seeds on MS media supplemented with BAP (1, 3 and 5 mg/l), Kinetin (1, 3 and 5 mg/l) and their combination with NAA (0.1, 0.5 and 1 mg/l). In reference to increased germination percentage, mean shoot length, mean number of leaves per explant and mean root length, among BAP and Kinetin concentrations, BAP 3 mg/l was found to be the best treatment. In terms of cytokinins and NAA combine effect, BAP 5 mg/l + NAA 0.5 mg/l and Kinetin 3 mg/l + NAA at 0.1 mg/l were found to be the best combinations.

8p caygaocaolon7 18-09-2020 28 3   Download

Coconut (Cocos nucifera L.), is an important perennial crop cultivated across the globe. The demand for quality planting materials is increasing across the world for the establishment of new orchards, rejuvenation of existing orchards and production of quality nuts. Plant tissue culture is an alternate approach for the production of quality planting material. In this investigation, influence of auxin and cytokinin on somatic embryogenesis in coconut is studied using sliced mature embryos as explants in modified Y3 media supplemented with various concentrations of 2,4-D and kinetin.

8p gaocaolon5 14-06-2020 15 2   Download

Five maize lines prevalently used by breeders in the maize program were screened for their ability to form type II callus. Mature seeds were used as explant for in vitro culturing. One inbred line showed high embryogenic response and formed friable, type II calli and also exhibited successful plant regeneration. Ten culture media compositions based on Murashige and Skoog (1962) salts thus investigated differed with respect to the combinations of concentrations of auxins (IBA, NAA, picloram, 2, 4-D) and cytokinins (BAP, kinetin) were used.

9p angicungduoc5 14-06-2020 4 0   Download

An investigation was carried out to isolate bacterial endophytes from small millets that have the ability to produce phytohormones like indole-3-acetic acid (IAA), gibberellic acid (GA), cytokinin and1-aminocyclopropane-1-carboxylate (ACC) deaminase. Thirty two bacterial endophytes are isolated from small millets and among thirty two isolates, twenty isolates produced indole-3-acetic acid (IAA) in the range of 96.70 μg to 254.95 μg and the isolate KMS1 produced significantly highest concentration of IAA (254.95 μg) followed by FMR3 (231.87μg).

11p kethamoi5 03-06-2020 15 1   Download

Cytokinins are known to play an important role in fruit set and early fruit growth, but their involvement in later stages of fruit development is less well understood. Recent reports of greatly increased cytokinin concentrations in the flesh of ripening kiwifruit (Actinidia deliciosa (A. Chev.) C.F. Liang & A.R. Ferguson) and grapes (Vitis vinifera L.) have suggested that these hormones are implicated in the control of ripening-related processes.

15p vihashirama2711 21-05-2020 15 0   Download

Banana (Musa spp.) cv. Rajapuri Bale (AAB) is a popular cultivar of banana grown in Northern parts of Karnataka especially in Bagalkot, Bijapur and Belgaum. The demand for the planting material of this cultivar is high and tissue cultured plantlets is not available because of the inherent problem in the initial establishment of the culture and multiplication rate is also low.

11p trinhthamhodang5 16-05-2020 12 0   Download

Anther Culture or microspore culture is a very important and useful tool in plant breeding for efficient production of haploids and subsequent doubled haploid plants in many species, limited research has been conducted with Brassica –rapaas it is more recalcitrant in cell and tissue culture than other Brassicas. In order to access the effect of genotype on microspore embryogenesis in B –rapa, two high yielding brown Sarsoon cultivars (KS-101 and KOS-1) were studied for their response to haploid plant regeneration through Anther culture. Flower buds of 2.2 mm to 2.

4p nguaconbaynhay5 11-05-2020 9 0   Download

Shoot apices of Physalis minima L. were cultured on fifteen full strength MS medium supplemented with various concentrations of cytokinins (BAP, KIN and TDZ). Tissue culture responses namely elongation of existing shoot and differentiation of multiple shoots were observed from the cultured explants. The establishment of cultured explants was not affected by the cytokinin concentration in the medium but overall shoot apices showed better establishment on medium supplemented with BAP than other cytokinins.

7p nguathienthan4 21-04-2020 20 1   Download

Present investigation was carried out to determine the optimum level of different plant growth regulators for rapid shoot multiplication, rooting and hardening of micropropagated plantlets of Aloe vera. The experiment was laid out using completely randomized design (CRD) with ten replications during 2018-19. Auxiliary shoot explants were inoculated on MS medium supplemented with various concentrations of cytokinin (BAP 0.5 – 6.0 mg/l) alone and BAP (0.5-6.0 mg/l) with auxin (NAA 0.1 – 0.6) in combination for direct shoot bud proliferation.

12p caygaocaolon4 04-04-2020 21 1   Download

Wheat is the second most produced staple food crop in world. An efficient method for in vitro micro propagation and genetic transformation of wheat are crucial for both basic and applied research. The present study was initiated with a view to develop a regeneration system in 4 genotypes of wheat cultivars HD2888, HD2329, DBW148, and DBW88 as a prerequisite to transformation. The mature embryos were excised from seeds and cultured on MS medium supplemented with high and low concentrations of cytokinins and auxins respectively.

8p nguaconbaynhay4 22-03-2020 16 2   Download

Organic inputs being bulky and concentrated in nature are capable of supplying plant nutrients and enhance soil physical environment. These manures containing organically bound macro and other micro-nutrients which influence plant growth and development, which further also play role in maintaining soil sustainability. The use of PGPR is steadily increased in agriculture and offers an attractive way to supplement and/or replace chemical inputs.

7p kethamoi2 15-12-2019 11 0   Download

Studies were carried out for rapid micropropagation of two sugarcane genotypes Co-86032 and CoVC-18061. The explants were surface sterilized with 75% alcohol for 30 minutes using cotton. The cultures were initiated by inoculating shoot apical meristem on MS (Murashige and Skoog, 1962) medium containing 1.0 mg/l kinetin. The multiplication response of two sugarcane genotypes was studied under five levels of 6-Benzylaminopurine (0, 0.5, 1, 1.5 and 2 mg/l) and five levels of kinetin (0, 0.25, 0.5, 1.0 and 1.5 mg/l) in completely randomized design with 5x5x2 factorial treatment combinations.

9p cothumenhmong1 08-12-2019 18 0   Download

Plant hormones are signal molecules produced within the plant, and occur in extremely low concentrations. Phytohormones determine the formation of flowers, stems, leaves, shedding of leaves, and development and ripening of fruits. They shape the plant, affecting seed growth, time of flowering, sex of flowers, senescence of leaves and fruits. Hormones are vital for plant growth and lacking them, plants would be mostly a mass of undifferentiated cells. Plant growth regulators include auxins, gibberellins, cytokinins, ethylene, growth retardants and growth inhibitors.

15p cothumenhmong1 08-12-2019 27 3   Download

Thidiazuron (TDZ) is among the most active cytokinin like substances and induces greater in vitro shoot proliferation than many other cytokinins in many plant species. Leaf, stem, stem node and cotyledonary node explants of 2 extensively cultivated Turkish lentil cultivars, Ali Dayi and Kayi 91, were cultured on Murashige and Skoog (MS) media supplemented with various concentrations of TDZ.

6p vineptune2711 31-10-2019 11 0   Download

Adventitious shoots were obtained from the diploid Diyarbakir watermelon cultivar "Sürme" by culturing cotyledons on shoot regeneration medium for 3 weeks. The effects of two cytokinins, benzyl amino purine (BA) and kinetine (Kin), on shoot organogenesis were examined. The number of shoots per explant were approximately more than 50% higher when 0.5 mg/l BA was used compared to the most effective kinetin concentration (1 mg/l).

5p vitamix 15-02-2019 8 0   Download

We established cell suspension culture on Panax vietnamensis and some attempts have been made to increase ginsenoside yield of ginseng cell culture through manipulation various culture factors and process variable. Half and full strength MS medium were found to be equally suitable for both biomass as well as ginsenoside production. The biomass production and ginsenoside yield were obtained 9.8 g/L DW and 6.81 mg/g DW, respectively. The effect of initial sucrose concentrations were also investigated in suspension cultures of P.

6p tuanloc_muido 11-12-2012 56 3   Download