Triterpenes induced by young apple fruits in response to herbivore attack

ABSTRACT Apples Malus domestica, known as a rich source of triterpene acids, induced more variety and quantity of triterpene acids in response to herbivory or mechanical damage. There were 3 major induced compounds: pomaceic acid and euscaphic acid, both of which are known apple triterpene acids, an...

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Published in:Bioscience, biotechnology, and biochemistry biotechnology, and biochemistry, 2021-06, Vol.85 (7), p.1594-1601
Main Authors: Ohata, Yuto, Tetsumoto, Yuuki, Morita, Sayo, Mori, Naoki, Ishiguri, Yoichi, Yoshinaga, Naoko
Format: Article
Language:English
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Summary:ABSTRACT Apples Malus domestica, known as a rich source of triterpene acids, induced more variety and quantity of triterpene acids in response to herbivory or mechanical damage. There were 3 major induced compounds: pomaceic acid and euscaphic acid, both of which are known apple triterpene acids, and 2α,19α-dihydroxy-3-oxours-12-en-28-oic acid (named eriobotoric acid), which was first identified in apples. In this study, the 3 compounds’ induction curves after damage, varietal differences in induction amounts, and physiological roles against pest insects were further investigated. Eriobotoric acid showed clear antifeedant activity against lepidopteran insect Spodoptera litura but not against apple pests. Graphical Abstract Graphical Abstract Three apple triterpenes induced by insect feeding showed antifeedant activity against some lepidopteran insects but not against apple fruit feeders such as Carposina sasakii.
ISSN:1347-6947
1347-6947
DOI:10.1093/bbb/zbab077