Evaluate the collective function of references cited together in a given text segment.
Classify their combined role into one of the following categories: 'method', 'background', or 'result'.

Text:…2010b), jasmonic acid (JA) (Truman et al., 2007), azeleic acid (AA) (Jung et al., 2009), a CDR1-derived peptide (Xia et al., 2004), plastid glycerolipids (Nandi et al., 2004; Chaturvedi et al., 2008), G3P (Chanda et al., 2011) and an abietane diterpenoid, dehydroabietinal (Chaturvedi et al., 2012).
Category: