Rhamnolipid produced by Pseudomonas aeruginosa SS14 causes complete suppression of wilt by Fusarium oxysporum f. sp. pisi in Pisum sativum

Characterization and antifungal properties of rhamnolipids produced by mangrove sediment bacterium Pseudomonas aeruginosa strain KVD-HM52

“…However an important observation in this study is that, degree of purification obtained for biosurfactant revealed by inhibition zone diameters attributed to the zone produced by equal concentrations of purified compound was significantly larger and well defined than crude biosurfactant fraction. The antifungal activity of isolated biosurfactant against fungal phytopathogen is in accordance with the recent literature (Sha et al, 2012;Borah et al, 2015;Goswami et al, 2014;Lahkar et al, 2015). Rhamnolipids have been previously reported to have depicted antifungal activity against several phytopathogens including Botrytis sp., R.solani, Colletotrichum sp., Pythium sp., Fusarium sp., Phytophthora sp.…”

“…other glycolipid biosurfactants reported in literature also yielded similar IR absorption spectra (Dengle-Pulate et al, 2014). The glycolipid nature of the biosurfactant was confirmed by comparing the IR spectra of this fraction with the previous results obtained in literature (Heyd et al, 2008;Borah et al, 2015). Overall, the analysis of FTIR profiles confirmed that KVD-HM52 biosurfactant was probably a glycolipid biosurfactant.…”

Assaying the potential autotoxins and microbial community associated with Rehmannia glutinosa replant problems based on its ‘autotoxic circle’

“…W 12 (Wu et al 2015). Research has confirmed that F. oxysporum is the pathogenic pathogens of R. glutinosa disease (Li et al 2013) and that most strains of Pseudomonas showed antagonistic activity against F. oxysporum (Borah et al 2015;Chin-A-Woeng et al 2000;Srinivasan et al 2009). In this work, we found that some congeneric species showed a close interaction with allelochemicals.…”

Utilization of mango kernel oil for the rhamnolipid production by Pseudomonas aeruginosa DR1 towards its application as biocontrol agent

“…and Plasmopara sp.). Borah et al (2015) used mannitol, glucose as carbon source for the rhamnolipid production and later evaluated the antifungal activity of produced rhamnolipid. They reported higher antifungal activity with rhamnolipid produced from mannitol as carbon source.…”

“…Biosurfactants derived from microorganisms exhibit various benefits over their chemical counterparts such as lower toxicity, higher biodegradability, high specificity, stability at extremes of temperature, pH, salinity and their possible production from different renewable sources (Borah et al, 2015;Geys et al, 2014). This dynamic nature of biosurfactants have been employed in oil recovery, bioremediation (Chuang et al, 2010;Sajna et al, 2015), microbial fuel cells preparation (Zheng et al, 2015), agricultural, food and pharmaceutical industries (Anjum et al, 2016;Zhang et al, 2016).…”