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- W2179048175 abstract "2-Acetyl-1-pyrroline (2AP) is known as a principal basmati aroma compound. The present study aims at discriminating rhizobacteria isolated from soils cultivated with basmati and non-basmati rice for long duration. Volatile profiling was used as marker to discriminate the rhizobacterial isolates. Quantification of 2AP and other volatile compounds (VCs) produced by rhizobacteria was undertaken using HS-SPME coupled with GC-MS. Chemometrics tools such as hierarchical cluster analysis (HCA), principle component analysis (PCA) and multi dimensional scaling (MDS) were applied for volatile profiling of different isolates. Results showed significant discrimination of all 2AP producing (AP-P) and non-producing rhizobacterial isolates (AP-NP) on the basis of their VC profile. This was validated by bacterial identification data as well. The frequency distribution for 2AP levels indicates that basmati isolates had higher frequency for 2AP production as compared to non-basmati control. AP-P and AP-NP isolates have different VC profiling pattern irrespective of their origin. These isolates were found belonging to different groups when identified using 16S rDNA sequencing data. Chemometric analysis (PCA, HCA and MDS) helped to identify volatiles, which could be used as biomarker in discriminating the AP-P and AP-NP isolates. VC pattern of rhizobacteria could be used as volatile markers to distinguish between AP-P and AP-NP rhizobacterial isolates. Copyright © 2015 John Wiley & Sons, Ltd." @default.
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- W2179048175 date "2015-10-12" @default.
- W2179048175 modified "2023-10-02" @default.
- W2179048175 title "Discrimination between 2AP producing and non-producing rice rhizobacterial isolates using volatile profiling: a chemometric approach" @default.
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- W2179048175 doi "https://doi.org/10.1002/cem.2760" @default.
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