HIGH FREQUENCY PLANT REGENERATION AND IN VITRO FLOWERING OF REGENERATED PLANTLETS OF SPILANTHES ACMELLA MURR. - AN IMPORTANT THREATENED BIO-INSECTICIDE MEDICINAL PLANT

2007 ◽  
pp. 183-198 ◽  
Author(s):  
K.V. Saritha ◽  
C.V. Naidu
2016 ◽  
Vol 8 (1) ◽  
Author(s):  
K. Dakshayini ◽  
C. Vaman Rao ◽  
Anitha Karun ◽  
U. Bhavyashree ◽  
P. Ujwal

<p>An efficient in vitro propagation and in vitro flowering protocols were developed for the medicinal plant Cichorium intybus (Asteraceae) using leaf disc explants. Media supplemented with the growth regulator naphthalene acetic acid (NAA) (1.5 mg/l) + 6-benzyle adenine (0.25 mg/l) was used for the initial induction of the callus and further subcultured to the same media for the proliferation of the callus. Pale yellow and green calli were noticed, which depends on incorporation of the growth hormones and their varying concentrations. Murashige and Skoog medium in addition with 2 mg/l kinetin+ 0.5 mg/l indole-3-acetic acid (IBA) + 500 mg/l casein hydrolysate resulted in maximum regeneration. Media supplemented via IBA (0.5 mg/l) and NAA (0.5 mg/l) (98%) was found to be<br />optimum for rhizogenesis for in vitro regenerated plants. For acclimatization 5-6 weeks mature in vitro regenerated plants were transferred into the greenhouse for acclimatization. The histological study revealed the presence actively dividing meristematic cells in callus. The occurrence of the peripheral meristematic zone associated with callus was noticed in after 20 days, which formed the shoot meristems after 45 days of incubation. To our knowledge, this is the first report on high-frequency plant regeneration which was carried out indirectly from the<br />leaf explants which was grown in controlled environment with varying concentration of the growth regulators and histology of callus of different stages from leaf explants of C. intybus.</p>


2012 ◽  
Vol 47 (2) ◽  
pp. 187-190
Author(s):  
Chapol Kumar Roy ◽  
John Liton Munshia ◽  
Nadira Begum ◽  
Rahima Khatun ◽  
AKM Sayeed Hassanb

An efficient protocol was developed for in vitro plant regeneration of a popularly used anti-diabetic medicinal plant, Coccinea cordifolia (Linn.) Cogn.(Cucurbitaceae) through direct organogenesis using shoot tip and nodal explants. Best shoot induction was observed on MS basal medium supplemented with 0.5 mg/l BAP, in which 88.2% of nodal explants responded to produce maximum number (6.2 ± 0.58) of shoots per culture. In vitro raised shoots rooted on half strength MS medium with 0.5 mg/l IBA. The survival rate of regenerated plantlets was 85%.   DOI: http://dx.doi.org/10.3329/bjsir.v47i2.11450   Bangladesh J. Sci. Ind. Res. 47(2), 187-190, 2012  


2015 ◽  
Vol 3 (2) ◽  
pp. 202-209 ◽  
Author(s):  
R. Shashi Kumar ◽  
V. Krishna ◽  
. Venkatesh

High frequency plant regeneration protocol has been standardized from banana cultivar Musa paradisiaca cv. Karibale Monthan, an endemic cultivar of Malnad region of Karnataka. The fruits are used as glomerular protective to solve kidney problems. To minimize the microbial contamination and to promote healthy growth, explants were treated with 70 % absolute alcohol for 6 min, 0.1 % Mercuric chloride for 10 min and 0.2 % for 10 min, 1 % Sodium hypochlorite for 15 min, 0.1 % Cefotaxime for 5 min and 0.05 % Gentamicin for 5 min. The high frequency shoot initiation (93.33 %) was recorded at 5 mg/l BAP. The synergetic effect of BAP (4 to 6 mg/l), TDZ (0.1 to 1.2 mg/l) and coconut water (0.1 to 0.9 ml/l) induced multiple shoot buds and it was optimized at the concentration of 5 mg/l BAP, 0.5 mg/l TDZ and 0.5 ml/l coconut water with 15.90 ± 1.66 frequency of shoots per propagule. Supplementation of 1.0 mg/l IBA induced 5.33 ± 1.21 numbers of roots with a mean root length of 7.50 ± 1.87 roots. The 99% of plantlets with distinct roots and shoots were successfully acclimatized in the green house and transferred to the field to evaluate the agro-morphological variations. The weight of the bunch (kg), number of hands in a bunch, number of fingers in a hand, length of the finger (cm), girth of the finger (cm) and girth of the pseudostem (cm) exhibited by in vitro plants were higher than the in vivo plants.Int J Appl Sci Biotechnol, Vol 3(2): 202-209 DOI: http://dx.doi.org/10.3126/ijasbt.v3i2.12536 


2017 ◽  
Vol 11 (4) ◽  
pp. 134-141
Author(s):  
Packiaraj Gurusarava ◽  
Sadasivam Vinoth ◽  
Ganesan Prem Kumar ◽  
Pandiselvi .

Sign in / Sign up

Export Citation Format

Share Document