Maurer M. M., Baker M. A., Volatile profiling of cacti: a preliminary assessment of the taxonomic and evolutionary significance of volatile compounds in Cylindropuntia, Grusonia, Consolea, Opuntia, Quiabentia, and Tacinga, Journal of Plant Research, 2021, 134(5):1095-1103, doi: 10.1007/s10265-021-01303-6
An analysis of volatile compounds from cut cactus stems using SPME–GC-MS. It compares chemical profiles of taxa with a distinct scent and the remaining samples, as well as hybrids and cytotypes. The authors identify compounds that distinguish the groups studied and discuss their possible systematic and ecological significance.