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Influence of Temperature and Host Plant on the Digestion of Frankliniella intonsa (Trybom) Revealed by Molecular Detection

文献类型： 外文期刊

作者： Yang, Keqing 1 ; Han, Dongyin 2 ; Wen, Jian 1 ; Liang, Changshou 2 ; Zhan, Canlan 2 ; You, Yiyangyang 1 ; Fu, Yueguan 2 ; Li, Lei 2 ; Ye, Zhengpei 2 ;

作者机构： 1.Hainan Univ, Sch Trop Agr & Forestry, Haikou 570228, Peoples R China

2.Chinese Acad Trop Sci, Environm & Plant Protect Inst, Key Lab Integrated Pest Management Trop Crops, Minist Agr & Rural Affairs, Haikou 571101, Peoples R China

3.Chinese Acad Trop Agr Sci, Sanya Res Inst, Sanya 572025, Peoples R China

4.Hainan Prov Engn Res Ctr Breeding & Industrializat, Haikou 571101, Peoples R China

关键词： thrip digestion; digestion rate; detectability half-lives; plant nutrient content; molecular diagnostic

期刊名称：INSECTS （ 影响因子：2.9； 五年影响因子：3.3 ）

ISSN：

年卷期： 2024 年 15 卷 10 期

页码：

收录情况： SCI

摘要： Simple Summary The effects of temperature and the host plant on the digestion rate of thrips, Frankliniella intonsa (Trybom), were assessed using a molecular diagnostic tool. The digestion rates of F. intonsa were determined as detectability half-lives of plant DNA in the gut content of thrips. Compared to the optimal temperature (26 degrees C), high and low temperatures (16 degrees C and 32 degrees C) both seem to accelerate the digestion in F. intonsa. The protein content of plants played an important role in the digestive response of F. intonsa to temperature changes. The results provide a direct insight and a better understanding of digestion in thrips.Abstract Frankliniella intonsa (Trybom) (Thysanoptera: Thripidae) is an important type of thrip and a polyphagous pest, which poses a serious threat to many crops, especially those in tropical regions of China. Its feeding behavior and the damage caused vary among different host plant species and are affected by ambient temperature and plant nutrients as well. The digestion rate is an important index for directly observing the digestion process, but there have been no studies directly measuring the digestion in thrips under the influence of different temperatures and host plants. Here, the digestion rate of F. intonsa was assessed by using a molecular diagnostic tool. We also determined the nutrient content in three host plant (mango, cowpea, and pepper), including soluble proteins, free fatty acids, soluble sugars, and water. The results showed that the high and low temperatures (16 degrees C and 32 degrees C) both seemed to accelerate the digestion of F. intonsa compared to the optimal temperature (26 degrees C) and the protein content of plants played an important role in the digestive response of F. intonsa to temperature changes. The findings can help reveal the feeding damage caused by F. intonsa to different plants and help to better understand its feeding ecology, according to its interaction with the host plant.

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