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| DOI | 10.1016/j.jtherbio.2024.103795 |
| Morphological and biochemical responses of a neotropical pest insect to low temperatures | |
| 发表日期 | 2024 |
| ISSN | 0306-4565 |
| EISSN | 1879-0992 |
| 起始页码 | 119 |
| 卷号 | 119 |
| 英文摘要 | As traditionally cold areas become warmer due to climate change, temperature could no longer be a barrier to the establishment of non-native insects. This is particularly relevant for pest insects from warm and tropical areas, mainly those with some tolerance to moderately low temperatures, which could expand their range into these new locations. From this perspective, in this work we studied the morphological and biochemical responses of the Neotropical pest Paysandisia archon to low temperatures, as part of a possible strategy to colonize new areas. To that end, wild larvae were exposed for 7 days to either low (1 and 5 degree celsius) or ambient (23 degree celsius) temperatures. We then quantified the inner and outer morphological changes, by X-Ray Computer Tomography and Digital Holographic Microscopy, as well as the accumulation of metabolites acting as potential endogenous cryoprotectants, by Spectrophotometry. We found that Paysandisia archon developed a cold-induced response based on different aspects. On the one hand, morphological changes occurred with a significant reduction both in fluids susceptible to freezing and fat body, together with the thickening, hardening and increased roughness of the integument. On the other hand, we found an increase in the hemolymph concentration of cryoprotective substances such as glucose (6-fold) and glycerol (2-fold), while trehalose remained unchanged. Surprisingly, this species did not show any evidence of cold-induced response unless the environmental temperature was remarkably low (1 degree celsius). These results could be useful to improve models predicting the possible spread of such a pest, which should incorporate parameters related to its resistance to low temperatures. |
| 英文关键词 | Paysandisia archon; Climate change; Pest insect; Cold-hardening; Low-molecular weight cryoprotectants |
| 语种 | 英语 |
| WOS研究方向 | Life Sciences & Biomedicine - Other Topics ; Zoology |
| WOS类目 | Biology ; Zoology |
| WOS记录号 | WOS:001174092500001 |
| 来源期刊 | JOURNAL OF THERMAL BIOLOGY
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/289711 |
| 作者单位 | Universidad Miguel Hernandez de Elche; Universidad Miguel Hernandez de Elche; Universidad Miguel Hernandez de Elche; Universidad Miguel Hernandez de Elche; Universidad Miguel Hernandez de Elche |
| 推荐引用方式 GB/T 7714 | . Morphological and biochemical responses of a neotropical pest insect to low temperatures[J],2024,119. |
| APA | (2024).Morphological and biochemical responses of a neotropical pest insect to low temperatures.JOURNAL OF THERMAL BIOLOGY,119. |
| MLA | "Morphological and biochemical responses of a neotropical pest insect to low temperatures".JOURNAL OF THERMAL BIOLOGY 119(2024). |
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