scholarly journals Characterization of non-aflatoxigenic strains of Aspergillus flavus as potential biocontrol agent for the management of aflatoxin contamination in groundnut

2017 ◽  
Vol 102 ◽  
pp. 21-28 ◽  
Author(s):  
Navya Hulikunte Mallikarjunaiah ◽  
Naveen Jayapala ◽  
Hariprasad Puttaswamy ◽  
Niranjana Siddapura Ramachandrappa
Keyword(s):  
Aspergillus Flavus ◽  
Biocontrol Agent ◽  
Aflatoxin Contamination ◽  
Potential Biocontrol Agent

Nannocystis exedens: A Potential Biocompetitive Agent against Aspergillus flavus and Aspergillus parasiticus

2001 ◽  
Vol 64 (7) ◽  
pp. 1030-1034 ◽  
Author(s):  
WILLIE J. TAYLOR ◽  
FRANCES A. DRAUGHON
Keyword(s):  
Aspergillus Flavus ◽  
Yeast Extract ◽  
Biocontrol Agent ◽  
Aspergillus Parasiticus ◽  
Extract Agar ◽  
Potential Biocontrol Agent ◽  
Aflatoxigenic Fungi ◽  
Close Proximity ◽  
Zones Of Inhibition ◽  
Yeast Extract Agar

This study examined the potential for controlling toxigenic Aspergillus flavus and Aspergillus parasiticus by biological means using a myxobacterium commonly found in soil. The ability of Nannocystis exedens to antagonize A. flavus ATCC 16875, A. flavus ATCC 26946, and A. parasiticus NRRL 3145 was discovered. Cultures of aflatoxigenic fungi were grown on 0.3% Trypticase peptone yeast extract agar for 14 days at 28°C. When N. exedens was grown in close proximity with an aflatoxigenic mold, zones of inhibition (10 to 20 mm) developed between the bacterium and mold colony. A flattening of the mold colony on the sides nearest N. exedens and general stunting of growth of the mold colony were also observed. When N. exedens was added to the center of the cross-streak of a mold colony, lysis of the colony by the bacterium was observed after 24 h. Microscopic observations revealed that N. exedens grew on spores, germinating spores, hyphae, and sclerotia of the molds. These results indicate that N. exedens may be a potential biocontrol agent against A. flavus and A. parasiticus.

Isolation and characterization of a potential biocontrol agent Bacillus KM5 from rhizosphere soil of a rice plant

2011 ◽  
Vol 44 (12) ◽  
pp. 1196-1212 ◽  
Author(s):  
K. Majumdar ◽  
M. Razdan ◽  
N. Aggarwal ◽  
K. K. Murali ◽  
R. C. Bhattacharya ◽  
...  
Keyword(s):  
Rice Plant ◽  
Biocontrol Agent ◽  
Rhizosphere Soil ◽  
Isolation And Characterization ◽  
Potential Biocontrol Agent

scholarly journals Phenotypic and molecular characterization of the causal agent of chafer beetle mortality in the wheat fields of the Kurdistan province, Iran

2015 ◽  
Vol 55 (3) ◽  
pp. 227-234 ◽  
Author(s):  
Keivan Karimi ◽  
Mahdi Arzanlou ◽  
Asadollah Babai Ahari ◽  
Mostafa Mansour Ghazi
Keyword(s):  
Field Experiments ◽  
Biocontrol Agent ◽  
Galleria Mellonella ◽  
Sequence Data ◽  
Biological Control Agent ◽  
Control Agent ◽  
Internal Transcribed Spacer Region ◽  
First Case ◽  
Potential Biocontrol Agent

AbstractWe report the first case of chafer beetle [Anisoplia austriaca(Herbst 1783)] mortality caused byActinomucor elegansvar.elegansin wheat fields of the Kurdistan province, Iran. For three years, dead larvae ofAnisoplia austriacawere collected from wheat fields of the Kurdistan province. Similar isolates of a fast-growing fungus were recovered from all samples. The fungal isolates were identified asA. elegansvar.elegansbased on morphological and cultural characteristics. The identity of the species was further confirmed using sequence data of the ITS (Internal Transcribed Spacer) region of ribosomal DNA. Koch’s postulates were fulfilled by the inoculation of the larvae ofA. austriacaandGalleria mellonella(Linnaeus, 1758) (as the model insect) using the spore suspension ofA. elegansvar.elegans. The viability of sporangiospores was evaluated using a spore dilution technique on germination medium. The results on the pathogenicity (100% mortality inA. austriacalarvae) and viability tests (germination: 95.45%) demonstrated thatA. elegansvar.eleganscan be considered as a potential biocontrol agent against the chafer beetle. Field experiments are still required to evaluate the capacity ofA. elegansas a biological control agent.

Characterization of potential biocontrol agent Bacillus sp.

2021 ◽  
Author(s):  
I. Santoso ◽  
Q. G. Fadhilah ◽  
A. E. Maryanto ◽  
Yasman
Keyword(s):  
Biocontrol Agent ◽  
Bacillus Sp ◽  
Potential Biocontrol Agent

scholarly journals Isolation and Characterization of phiLLS, a Novel Phage with Potential Biocontrol Agent against Multidrug-Resistant Escherichia coli

2017 ◽  
Vol 8 ◽  
Author(s):  
Luis Amarillas ◽  
Lucia Rubí-Rangel ◽  
Cristobal Chaidez ◽  
Arturo González-Robles ◽  
Luis Lightbourn-Rojas ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Biocontrol Agent ◽  
Multidrug Resistant ◽  
Isolation And Characterization ◽  
Potential Biocontrol Agent
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