Abstract
Tenuazonic acid (TeA), a member of representative natural tetramic acids, is a phytotoxin produced by the fungus Alternaria alternata isolated from diseased Croftonweed (Eupatorium adenophorum). TeA strongly inhibits photosynthesis, especially photosystem II (PSII) activity. Evidence from fast chlorophyll fluorescence induction transients of host plant shows that the most important action site of TeA is that it interrupts electron transport beyond QA, on the acceptor side of PSII, and this is due to its binding at the QB-site. On the basis of competition experiments with [14C]atrazine, it is further confirmed that TeA does not share the same binding environment as atrazine, despite their common action target: the QB-site.KeywordsTenuazonic acidChl a fluorescence induction transientsJIP-testPSII inhibitorReaction center
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.
