Abstract
The distribution and translocation as well as the biosynthetic sites of 3-isobutyl-2-methoxypyrazine (IBMP) in bell pepper plants (Capsicum annuum) were examined. For IBMP-quantification, a stable-isotope dilution assay (SIDA) was developed, using headspace solid-phase microextraction (HS-SPME) combined with gas chromatography and time-of-flight mass spectrometry (ToF-MS). While IBMP was the most abundant MP in all aerial plant parts, IPMP was dominating in root tissues. The highest IBMP-levels were found in unripe bell pepper fruits. Moreover, feeding experiments with [2H10]-l-leucine revealed that IBMP is biosynthesized in all plant parts, while in roots and ripe bell pepper fruit tissues no incorporation of the labelled precursor was detectable. A potential phloem translocation of IBMP could not be detected.
Sign-in/Register to access full text options 
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.
