Triterpenes induced by young apple fruits in response to herbivore attack

2021 ◽  
Author(s):  
Yuto Ohata ◽  
Yuuki Tetsumoto ◽  
Sayo Morita ◽  
Naoki Mori ◽  
Yoichi Ishiguri ◽  
...  
Keyword(s):  
Malus Domestica ◽  
Spodoptera Litura ◽  
Mechanical Damage ◽  
Antifeedant Activity ◽  
Varietal Differences ◽  
Triterpene Acids ◽  
Lepidopteran Insect ◽  
Pest Insects ◽  
Herbivore Attack ◽  
Apple Fruits

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 three 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 three 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.

Antifeedant Activity of Camptothecin and its Semisynthetic Derivatives Against Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae) Larvae

2012 ◽  
Vol 8 (3) ◽  
pp. 291-295 ◽  
Author(s):  
Wen-Qun Li ◽  
Ying-Qian Liu ◽  
Yong-Long Zhao ◽  
Xing-Wen Zhou ◽  
Liu Yang ◽  
...  
Keyword(s):  
Spodoptera Litura ◽  
Antifeedant Activity ◽  
Lepidoptera Noctuidae

scholarly journals Biochemical composition of scab-immune apple fruits varieties (Malus domestica B.) as a valuable component of healthy dietary

2021 ◽  
Vol 30 ◽  
pp. 01018
Author(s):  
Natalia Saveleva ◽  
Nadezhda Borzykh ◽  
Vladislav Chivilev ◽  
Andrey Yushkov ◽  
Aleksander Zemisov ◽  
...  
Keyword(s):  
Malus Domestica ◽  
Biochemical Composition ◽  
Food Production ◽  
Soluble Solids ◽  
Valuable Component ◽  
Apple Varieties ◽  
Apple Fruits ◽  
Long Term Studies

The article presents an analysis of the biochemical composition of apple varieties (Malus domestica B.) with immunity to scab. Domestic and foreign apple varieties are used as research objects. Variability in fruits in the content of ascorbic acid (AA), soluble solids (SDS), P-active compounds, and titratable acids was noted. The high content of AA is noted in Uspenskoe, Skala, Bylina, Flagman, Yubilyar apple varieties. Long-term studies have revealed intervarietal differences in biochemical composition and variation of this trait over the years in apples. Varieties with valuable biochemical composition and immunity to scab can be used in organic food production, as well as in further breeding work to improve the quality of fruits.

scholarly journals Biphasic Dose–Response of Components From Coptis chinensis on Feeding and Detoxification Enzymes of Spodoptera litura Larvae

Dose-Response ◽  
2020 ◽  
Vol 18 (3) ◽  
pp. 155932582091634
Author(s):  
Houhui Jiang ◽  
Yin Chen ◽  
Juan Ni ◽  
Jia Song ◽  
Li Li ◽  
...  
Keyword(s):  
Dose Response ◽  
Spodoptera Litura ◽  
Detoxification Enzymes ◽  
Low Doses ◽  
Antifeedant Activity ◽  
Glutathione S Transferase ◽  
Coptis Chinensis ◽  
Defensive Role ◽  
High Doses ◽  
Biphasic Dose Response

Due to long-term coevolution, secondary metabolites present in plants apparently function as chemical defense against insect feeding, while various detoxification enzymes in insects are adaptively induced as a prosurvival mechanism. Coptis chinensis, a medicinal plant used in traditional Chinese medicine for a thousand years, was found to be less prey to insects in our earlier field observations. Herein, 4 crude extracts obtained from sequential partition of aqueous extract of Rhizoma coptidis with petroleum ether, ethyl acetate, and n-butanol exhibited antifeedant activity against Spodoptera litura (Fabricius) larvae at high doses and inducing activity at low doses. Furthermore, a similar biphasic dose–response of the antifeedant activity against S litura larvae was also observed for jateorhizine, palmatine, and obakunone in Coptis chinensis. Notably, the enzyme activities of glutathione-S-transferase and carboxyl esterase in S litura larvae affected by the different components (jateorhizine, palmatine, obakunone, berberine, and coptisine) of C chinensis also showed a biphasic dose–response with an increasing trend at low doses and a decreasing trend at high doses. Together, our study suggests that the components of C chinensis may play a chemical defensive role against S litura larvae in a hormetic manner.

Antifeedant activity and toxicity of leaf extracts from Porteresia coarctata Takeoka and their effects on the physiology of Spodoptera litura (F.)

2007 ◽  
Vol 81 (2) ◽  
pp. 79-84 ◽  
Author(s):  
Christian Ulrichs ◽  
Inga Mewis ◽  
Sujit Adhikary ◽  
Atanu Bhattacharyya ◽  
Arunava Goswami
Keyword(s):  
Spodoptera Litura ◽  
Antifeedant Activity ◽  
Leaf Extracts ◽  
Porteresia Coarctata

Antifeedant Activity of Some Pentacyclic Triterpene Acids and Their Fatty Acid Ester Analogues

2003 ◽  
Vol 51 (7) ◽  
pp. 1952-1955 ◽  
Author(s):  
Uppuluri V. Mallavadhani ◽  
Anita Mahapatra ◽  
S. Sabitha Raja ◽  
C. Manjula
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Ester ◽  
Acid Ester ◽  
Antifeedant Activity ◽  
Pentacyclic Triterpene ◽  
Triterpene Acids

Distribution and metabolism of ascorbic acid in apple fruits (Malus domestica Borkh cv. Gala)

Plant Science ◽  
2008 ◽  
Vol 174 (6) ◽  
pp. 606-612 ◽  
Author(s):  
Ming-Jun Li ◽  
Feng-Wang Ma ◽  
Min Zhang ◽  
Fei Pu
Keyword(s):  
Ascorbic Acid ◽  
Malus Domestica ◽  
Malus Domestica Borkh ◽  
Apple Fruits
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