Growth, Development and Reproduction of Meadow Moth Loxostege sticticalis Fed on Pea Seedlings Grown Under Elevated CO2

文献类型： 外文期刊

第一作者： Zhou, Jingxian

作者： Zhou, Jingxian;Xu, Zun;Yu, Zuoheng;Mai, Huirong;Huang, Jiacheng;Chen, Fajun;Chang, Xiaoli

作者机构：

关键词： elevated CO2; Loxostege sticticalis; pea; plant-insect interaction; insect physiology; climate change

期刊名称：AGRONOMY-BASEL （ 影响因子：3.4； 五年影响因子：3.8 ）

ISSN：

年卷期： 2025 年 15 卷 1 期

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收录情况： SCI

摘要： To comprehensively investigate the impacts of increased atmospheric CO2 concentrations on the growth, development and reproduction of the meadow moth Loxostege sticticalis when fed on pea plants (Pisum sativum), in this experiment, we simulated the two CO2 conditions: ambient CO2 (i.e., 400 mu L/L designated as aCO(2)) and elevated CO2 (i.e., 800 mu L/L designated as eCO(2)) by using light-CO2 climate chambers. Subsequently, the changes in several key nutrients and defensive compounds present in pea seedlings were assessed. Moreover, we assessed the growth, development, reproduction and changes in the nutritional components and enzyme activities of L. sticticalis as they fed on pea seedlings grown under aCO(2) and eCO(2). The results showed that the CO2 level significantly affected the measured indexes of pea seedlings and L. sticticalis. Host pea seedlings grown under eCO(2) exhibited significant increases in soluble sugar (SS), soluble protein (SP) and total amino acid (TAA) contents by 42.52%, 77.06% and 62.50%, respectively, relative to those grown under aCO(2). In addition, total phenol (TP), ethylene (ET) and jasmonic acid (JA) contents grown under eCO(2) increased significantly by 20.60%, 71.72% and 36.22%, respectively, under eCO(2) compared to aCO(2). Furthermore, the duration of egg, larva and pupa of L. sticticalis was significantly shortened by 16.63%, 10.66% and 10.12%, respectively, while the adult longevity was significantly prolonged by 19.07% after feeding on pea seedlings grown under eCO(2) in contrast to aCO(2). Furthermore, for L. sticticalis, the content of SS, SP, TAA and free fatty acid was significantly increased, by 60.02%, 77.06%, 91.67% and 27.19%, respectively. Moreover, the enzyme activity of CAT, POD, CarE and GST was also enhanced by 56.70%, 63.89%, 128.08% and 93.45%, respectively, as they fed on pea seedlings grown under eCO(2) in contrast to aCO(2). The findings of our study revealed that eCO(2) not only improved the nutritional quality but also altered the defensive compounds in the seedlings, which in turn affected the growth, development, reproduction and changes in the physiology of L. sticticalis.

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