Abstract
Summary Ipomeamarone, a furanosesquiterpenoid stress metabolite of sweet potato root, accumulated in slices treated with 5 mM HgCl 2 . A fivefold increase in HgCl 2 -induction of ipomeamarone accumulation was observed in tissue treated with either ethylene (100 ppm), cyanide (10 mM) or carbon monoxide (1 mM) in the dark. Ethylene and its analogues did not induce ipomeamarone accumulation in the absence of mercuric chloride. Potassium isothiocyanate (10 mM) and 8-hydroxyquinoline sulfate (10mM), known inhibitors of cyanide-insensitive respiration, repressed HgCl 2 and HgCl 2 -cyanide induction of ipomeamarone. Also, induction of ipomeamarone formation by HgCl 2 was potentiated by aging tissue slices 24 hours prior to treatment. These data are consistent with the hypothesis that ethylene and ethylene analogues potentiate ipomeamarone accumulation by evoking the cyanide-insensitive respiratory pathway.
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.
