Patterns in Volatile Emission of Different Aerial Parts of Caper (Capparis spinosa L.)

Abstract

We analyzed the spontaneous volatile emission of different aerial parts of the caper (Capparis spinosa L.) by HS-SPME-GC/MS. We identified 178 different compounds of which, in different proportions based on the sample type, the main ones were (E)-β-ocimene, methyl benzoate, linalool, β-caryophyllene, α-guaiene, germacrene D, bicyclogermacrene, germacrene B, (E)-nerolidol, isopropyl tetradecanoate, and hexahydrofarnesyl acetone. The multivariate statistical analyses seem to point out that the parameter leading the emission patterns is the function of the analyzed sample; the flower samples showed differences in the emission profile between their fertile and sterile portions and between the other parts of the plant. The green parts emission profiles group together in a cluster and are different from those of seeds and fruits. We also hydrodistilled fully bloomed caper flowers, whose volatile oil showed significant differences in the composition from those of other parts of the plant reported.

A novel study approach on Scutellaria altissima L. cultivated at the Ghirardi Botanic Garden (Lombardy, Italy)

“…In contrast, the noticeable abundance of (E)-b-ocimene (12), exclusive to the floral profile, underlines the major attractant action of the reproductive organs. The differences in volatile emissions based on the ecological role of the plant organs has also been reported for Capparis spinosa L., showing the importance of these compounds in the planthabitat relationship (Ascrizzi et al, 2016). Moreover, these authors reported (E)-b-ocimene as the main compound emitted in the floral headspace analysis, confirming the pollinatorattraction role hypothesized for this volatile in the present study (Ascrizzi et al, 2016).…”

Phytochemical and Pharmacological Properties of Capparis spinosa as a Medicinal Plant

“…In a study investigating the spontaneous volatile emission of different aerial parts of C. spinosa , Ascrizzi et al [ 52 ] reported that 178 volatile organic compounds (VOCs) were determined by headspace solid-phase microextraction (HS-SPME) coupled with gas chromatography (GC)/MS. The major VOCs emitted by leaves of C. spinosa were germacrene D (20%) and decanal (15%) [ 52 ]. The flower bud of C. spinosa mainly emitted isopropyl tetradecanoate (26%), ( E )-nerolidol (17%) and hexahydrofarnesyl acetone (11%) [ 52 ].…”

“…The major VOCs emitted by leaves of C. spinosa were germacrene D (20%) and decanal (15%) [ 52 ]. The flower bud of C. spinosa mainly emitted isopropyl tetradecanoate (26%), ( E )-nerolidol (17%) and hexahydrofarnesyl acetone (11%) [ 52 ]. For the fruits of C. spinosa , the majority of the VOCs were β-caryophyllene (40%), α-guaiene (12%), bicyclogermacrene (11%) and macrene B (8%) [ 52 ].…”

“…Ascrizzi et al [ 52 ] reported that the seeds of C. spinosa emitted 99% of the total emission profile were sesquiterpene hydrocarbons with the most abundant compounds being β-caryophyllene (45%) followed by α-guaiene (15%), bicyclogermacrene (12%) and germacrene B (8%).…”

BiClusO: A Novel Biclustering Approach and Its Application to Species-VOC Relational Data

“…We collected species-VOC relationship data from the KNAp-SAcK metabolite ecology section of the KNApSAcK family databases [9]. We also collected additional data from different papers and journals using Google Scholar and other publication sites [24], [25], [26], [27], [28], [29], [30], [31], [32], [33], [34], [35], [36], [37], [38], [39], [40], [41], [42], [43], [44], [45], [46], [47], [48], [49], [50], [51], [52], [53], [54]. The final data consists of 12,410 species-VOC relations including 710 species and 1,740 different VOCs.…”