A simplified method for the control of bacterial contamination in woody plant tissue culture

1991 ◽  
Vol 27 (1) ◽  
pp. 42-42 ◽  
Author(s):  
Peter R. Viss ◽  
Edward M. Brooks ◽  
John A. Driver
2018 ◽  
Vol 28 (1) ◽  
pp. 99-108 ◽  
Author(s):  
Mohammad Ali ◽  
Shefali Boonerjee ◽  
Mohammad Nurul Islam ◽  
Mihir Lal Saha ◽  
M Imdadul Hoque ◽  
...  

The endogenous bacterial contamination of plant tissue culture materials and their possible control was studied. Nine bacterial isolates were isolated from the contaminated tissue culture materials viz. potato and tea. On the basis of morphology and biochemical characters of nine isolates, seven were identified as Gram positive belonging to Bacillus alcalophilus, B. circulans, B. infantis, B. lentus, B. schlegelii, B. pumilus and B. subtilis. Remaining two were Gram negative and identified as Enterobacter cloacae sub. sp. dissolvens and Pantoea agglomerans. Molecular analysis was conducted on the basis of 16S rDNA sequence to confirm three isolates. Culture and sensitivity test was carried out to screen out the antibiotic sensitivity where streptomycin (S-10), polymyxin (PB-300) and gentamicin (CN-120) antibiotics were found to be effective against all bacterial isolates. The culture and sensitivity test reflected the feasibility to control or eliminate the contaminant bacteria during in vitro culture of plant which is very much required in the commercial tissue culture production.Plant Tissue Cult. & Biotech. 28(1): 99-108, 2018 (June)


Author(s):  
Yash Sharma ◽  
Manish Bhardwaj ◽  
Anshita Nagar ◽  
Neeta Bhagat

Objective: The purpose of the present study was to isolate and characterize bacterial contamination from in vitro culture of Bacopa monniera callus culture.Methods: The two selected isolates (1 and 2) were identified by morphological, biochemical and molecular (16S rRNA gene sequencing) methods. Beside this antibiotic resistance was also determined.Results: The isolates were identified as closely related to Enterobacter cloacae (KU350623) (Isolate 1) and Myroides odoratimimus (KU382740) (Isolate 2). The isolate 1 and 2 were found to be resistant to streptomycin (25 mcg), dapsone (10 mcg), erythromycin (15 mcg), chloroamphenicol (25 mcg) and ampicillin (10 mcg). Supplementation of the natural extract was tested to control the contamination due to these multi drug resistant bacteria. Aqueous and alcoholic leaf extracts of Azadirachta indica was added to plant tissue culture media i.e. MS media in order to control contamination.Conclusion: The present studies suggest using natural extracts supplementation as a promising strategy to control the in vitro bacterial contamination in plant tissue culture.


Planta Medica ◽  
2013 ◽  
Vol 79 (05) ◽  
Author(s):  
M Mujeeb ◽  
M Amir ◽  
AS Nadeem ◽  
M Aqil ◽  
AK Najmi ◽  
...  

2016 ◽  
Vol 128 (2) ◽  
pp. 437-446 ◽  
Author(s):  
Siham Esserti ◽  
Mohamed Faize ◽  
Lalla Aicha Rifai ◽  
Amal Smaili ◽  
Malika Belfaiza ◽  
...  

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