The effect of environmental factors on surfactin production of Bacillus subtilis

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NAZARI FAHIMEH; SAFAIE NASER; MOHAMMAD SOLTANI BAHRAM; SHAMS BAKHSH MASOUD; SHARIFI MOHSEN

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Journal: JOURNAL OF CROP PROTECTION Year:2017 | Volume:6 | Issue:1 Page(s): 89-97

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Title

The effect of environmental factors on surfactin production of Bacillus subtilis

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Keywords

SurfactinQ1

HPLCQ1

Bacillus spp.Q2

biocontrolQ2

Abstract

Surfactin is one of the most efficient biosurfactants excreted by Bacillus subtilis which displays the highest potential as induced systemic resistance elicitor among all metabolites produced by B. subtilis. Environmental factors have considerable effect on Surfactin production. In this study Surfactin production of two Bacillus subtilis strains were analyzed using high performance liquid chromatography (HPLC). C14 and C15 Surfactins were detected in the ethanol extract from acid-precipitated supernatant. HPLC analyses of different media including Nutrient Broth (NB) medium, NB plus 40g/l glucose, NB plus 10% soil extract and NB plus 10% plant extract medium, clearly showed that these bacteria produced different amounts of Surfactins C14 and C15 in these media. Surfactin production in NB/plant medium was relatively the highest in quantity. Microelements analysis of media containing plant and soil extract with atomic absorption spectrometry showed high amounts of Fe, Mn and Zn in medium containing plant extract compared with that of soil extract. Since these elements play an important role in Surfactin production, high amounts of Fe, Mn and Zn in NB/plant extract medium compared to the NB/soil extract medium could be the possible reason for relatively higher amounts of Surfactins C14 and C15 produced in NB/plant medium. So adding these important elements to soil may boost biocontrol effect of B. subtilis against plant pathogens.

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APA: Copy

NAZARI, FAHIMEH, SAFAIE, NASER, MOHAMMAD SOLTANI, BAHRAM, SHAMS BAKHSH, MASOUD, & SHARIFI, MOHSEN. (2017). The effect of environmental factors on surfactin production of Bacillus subtilis. JOURNAL OF CROP PROTECTION, 6(1 ), 89-97. SID. https://sid.ir/paper/239051/en

Vancouver: Copy

NAZARI FAHIMEH, SAFAIE NASER, MOHAMMAD SOLTANI BAHRAM, SHAMS BAKHSH MASOUD, SHARIFI MOHSEN. The effect of environmental factors on surfactin production of Bacillus subtilis. JOURNAL OF CROP PROTECTION[Internet]. 2017;6(1 ):89-97. Available from: https://sid.ir/paper/239051/en

IEEE: Copy

FAHIMEH NAZARI, NASER SAFAIE, BAHRAM MOHAMMAD SOLTANI, MASOUD SHAMS BAKHSH, and MOHSEN SHARIFI, “The effect of environmental factors on surfactin production of Bacillus subtilis,” JOURNAL OF CROP PROTECTION, vol. 6, no. 1 , pp. 89–97, 2017, [Online]. Available: https://sid.ir/paper/239051/en

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