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Identification of sesquisabinene B in carrot (Daucus carota L.) leaves as a compound electrophysiologically active to the carrot psyllid (Trioza apicalis Forster)
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för kemiteknik.
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Institutionen för kemiteknik.
Lund university, Lund.
Lund university, Lund.
Vise andre og tillknytning
2019 (engelsk)Inngår i: Chemoecology, ISSN 0937-7409, E-ISSN 1423-0445, Vol. 29, nr 3, s. 103-110Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The Carrot psyllid, Trioza apicalis Forster (Homoptera: Psylloidea: Triozidae) is one of the major insect pests of carrots (Daucus carota L.) in parts of northern and central Europe. Gas chromatography-single-sensillum recording (GC-SSR) previously confirmed several active compounds in a carrot leaf extract, but the most active compound remained unidentified. Mass fragmentation patterns observed from the unidentified active compound when analyzed by gas chromatography and mass spectrometry (GC-MS) was used to propose -sesquiphellandrene and -cis-bergamotene to be candidates as the unidentified compound. The compounds were synthesized and their mass spectra were nearly identical with the unknown active compound. But, the retention times differed from the compound in the carrot leaf extract. Thus, to obtain the unidentified compound pure enough and in adequate amounts for nuclear magnetic resonance (NMR) analysis, preparative gas chromatography was applied to separate and concentrate this biologically active compound. Analysis by liquid chromatography quadrupole time of flight mass spectrometry (LC-QTOF) confirmed the unidentified compound to be a compound with theformula of C15H24 and together with GC-MS, H-1 and C-13 NMR analysis sesquisabinene B was identified as the unidentified compound in the extract. GC-SSR was then used to finally confirm the biological activity of sesquisabinene B isolated from the carrot leaf extract via preparative GC.

sted, utgiver, år, opplag, sider
2019. Vol. 29, nr 3, s. 103-110
Emneord [en]
Synthesis, beta-Sesquiphellandrene, alpha-cis-Bergamotene, Preparative gas chromatography, Single-sensillum recording, Analysis
HSV kategori
Identifikatorer
URN: urn:nbn:se:miun:diva-36651DOI: 10.1007/s00049-019-00280-6ISI: 000469799200002Scopus ID: 2-s2.0-85063037685OAI: oai:DiVA.org:miun-36651DiVA, id: diva2:1335832
Tilgjengelig fra: 2019-07-08 Laget: 2019-07-08 Sist oppdatert: 2019-10-16bibliografisk kontrollert
Inngår i avhandling
1. Structure elucidation of semiochemicals related to: Polygraphus poligraphus, Polygraphus punctifrons, Trioza apicalis, Whittleia retiella, Neodiprion edulicolus, Neodiprion scutellatus, Neodiprion knereri and Neodiprion virginianus
Åpne denne publikasjonen i ny fane eller vindu >>Structure elucidation of semiochemicals related to: Polygraphus poligraphus, Polygraphus punctifrons, Trioza apicalis, Whittleia retiella, Neodiprion edulicolus, Neodiprion scutellatus, Neodiprion knereri and Neodiprion virginianus
2019 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
sted, utgiver, år, opplag, sider
Sundsvall: Mid Sweden University, 2019. s. 60
Serie
Mid Sweden University doctoral thesis, ISSN 1652-893X ; 293
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Identifikatorer
urn:nbn:se:miun:diva-36850 (URN)978-91-88527-88-2 (ISBN)
Disputas
2019-03-12, O102, Sundsvall, 10:15 (engelsk)
Veileder
Merknad

Vid tidpunkten för disputationen var följande delarbeten opublicerade: delarbete 2 (accepterat), delarbete 3 (accepterat), delarbete 4 (inskickat), delarbete 5 (inskickat), delarbete 6 (manuskript).

At the time of the doctoral defence the following papers were unpublished: paper 2 (accepted), paper 3 (accepted), paper 4 (submitted), paper 5 (submitted), paper 6 (manuscript).

Tilgjengelig fra: 2019-08-14 Laget: 2019-08-14 Sist oppdatert: 2019-08-16bibliografisk kontrollert

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