Abstract
Fourier transform infrared spectroscopy was used to characterise highland and lowland populations of Polygonum minus Huds. grown in different controlled environments. A thermal perturbation technique of two- dimensional correlation infrared spectroscopy (2D-IR) cor- relation spectra was applied to establish differences between the populations. The absorption peaks at 3,480 cm -1 (hydroxyl group), 2,927 cm -1 (methyl group), 1,623 cm -1 (carbonyl group), and 1,068 cm -1 (C-O group) were par- ticularly powerful in separating the populations. These peaks, which indicate the presence of carbohydrate, terp- enes, amide and flavonoids were more intense for the high- land populations than lowland populations, and increased in environments with a higher temperature. Wavenumbers (1,634, 669 cm -1 ) and (1,634, 1,555 cm -1 ) in the 2D-IR correlation spectra provided fingerprint signals to differen- tiate plants grown at different temperatures. This study demonstrates that IR fingerprinting, which combines mid-IR spectra and 2D-IR correlation spectra, can directly discrim- inate different populations of P. minus and the effects of temperature.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
