Novel metabolites from Bacillus safensis and their antifungal property against Alternaria alternata

2021 ◽  
Author(s):  
Jai Prakash ◽  
Naveen Kumar Arora
Keyword(s):  
Alternaria Alternata ◽  
Antifungal Property ◽  
Bacillus Safensis

scholarly journals Novel Metabolites Identified From Bacillus Safensis and Their Antifungal Property Against Alternaria Alternata 

2021 ◽  
Author(s):  
Jai Prakash ◽  
Naveen Arora
Keyword(s):  
Alternaria Alternata ◽  
Alkyl Halide ◽  
Agar Plate ◽  
Stevia Rebaudiana ◽  
Plant Growth Promoting Rhizobacteria ◽  
Gas Chromatography Mass Spectrometry ◽  
Mycelium Growth ◽  
Antifungal Metabolites ◽  
Conidia Germination ◽  
Bacillus Safensis

Abstract Plant growth promoting rhizobacteria offer an effective and eco-sustainable solution to protect crops against phytopathogens. In the present study, Bacillus safensis STJP (NAIMCC-B-02323) from the rhizospheric soil of Stevia rebaudiana showed strong biocontrol activity against phytopathogen, Alternaria alternata. B. safensis STJP produced antifungal volatile organic compounds (AVOC). In the presence of AVOC, there was no conidia germination, mycelium growth was inhibited, and hyphae ruptured as observed by scanning electron microscopy (SEM). When mycelium of the fungus from bacterial treated plate was transferred into fresh potato dextrose agar plate, A. alternata could not grow. Extracted AVOC from B. safensis STJP were identified by thin-layer chromatography (TLC), fourier-transform-infrared spectroscopy (FT-IR) and gas-chromatography-mass spectrometry (GC-MS). In total 25 antifungal metabolites were identified by GC-MS analysis having alcohol, alkane, phenol, alkyl halide and aromatic compounds. Five compounds (phenol, 2,4-bis (1,1-dimethylethyl)-, 3-hexadecanol, pyrrolo(1,2-a)pyrazine-1,4-dione, 5,10-diethoxy-2,3,7,8-tetrahydro-1H,6H-dipyrrolo(1,2-a:1',2'-d)pyrazine and hexadecanoic acid) completely inhibited the mycelium growth, controlling spore formation and conidia germination of A. alternata. This study concluded that AVOC producing B. safensis can be used as a green-fungicide against A. alternata. Bacterial metabolites could pave the way for the development of next generation biopesticide. This can be a reliable technology to enhance the quality and reliability of biopesticides.

Case Report. Keratomycosis due to Alternaria alternata in a diabetic patient - Fallbericht. Keratomykose durch Alternaria alternata bei einem Diabetiker

Mycoses ◽  
2002 ◽  
Vol 45 (11-12) ◽  
pp. 512-514
Author(s):  
Loranne Vella Zahra ◽  
D. Mallia ◽  
J. Grech Hardie ◽  
A. Bezzina ◽  
T. Fenech
Keyword(s):  
Case Report ◽  
Diabetic Patient ◽  
Alternaria Alternata

Crossreactivity Between Curvularia lunata and Alternaria alternata

2006 ◽  
Vol 18 (06) ◽  
pp. 224-229
Author(s):  
Naveen Arora ◽  
Bhanu Singh ◽  
Ratna Gupta ◽  
Susheela Sridhara ◽  
Raphael Panzani
Keyword(s):  
Alternaria Alternata ◽  
Curvularia Lunata

Characterization of α-D-manosidase activity from Bacillus safensis MA-01

2015 ◽  
Vol 7 (1) ◽  
pp. 11-18
Author(s):  
Bo Mi Lee ◽  
Joo Won Kim ◽  
Jae Kweon Park
Keyword(s):  
Bacillus Safensis

How Does Alternaria alternata-Derived Alternariol Affect Our Health?

2017 ◽  
Vol 13 (6) ◽  
pp. 465-472
Author(s):  
Manaf AlMatar ◽  
Isıl Var ◽  
Fatih Koksal
Keyword(s):  
Alternaria Alternata
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