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タイトル: | Factors affecting photoreactivation in UVB-irradiated herbivorous spider mite (Tetranychus urticae). |
著者: | Murata, Yasumasa Osakabe, Masahiro https://orcid.org/0000-0002-2246-3431 (unconfirmed) |
著者名の別形: | 村田, 康允 |
キーワード: | Photoenzymatic repair UV damage DNA lesion Environmental stress Acari Tetranychidae |
発行日: | Jun-2014 |
出版者: | Springer International Publishing |
誌名: | Experimental & applied acarology |
巻: | 63 |
号: | 2 |
開始ページ: | 253 |
終了ページ: | 265 |
抄録: | Ambient ultraviolet-B (UVB) radiation causes lethal damage to spider mites, and the extent of photochemical effects is determined by cumulative irradiance in the two-spotted spider mite, Tetranychus urticae. However, the LD50 values obtained using a UVB lamp were much lower than those elicited by solar UVB radiation. As solar radiation includes intense visible light and UVA, we assumed that a photoreactivation mechanism would play a role to survive under solar radiation. We assessed the capacity for photoreactivation in T. urticae eggs and larvae, and found that the efficacy of photoreactivation was determined by the cumulative irradiance of visible light (VIS) after exposure to UVB radiation. The wavelength range effective for photoreactivation went from UVA to green. Next, we found that an increased time lag between UVB and VIS radiation reduced the photoreactivation efficacy in eggs. In contrast, a time lag ≤4 h did not affect that in larvae. We discussed the possibility that the timing of photoreactivation occurs related with phase-specific UVB vulnerability and outbreak symptoms due to UVB-induced DNA damage. Our results suggest that T. urticae depends on a photoreactivation mechanism, and that the photoreactivation efficiency probably caused the divergence in UVB impact between UV lamp and solar radiation. |
著作権等: | The final publication is available at Springer via http://dx.doi.org/10.1007/s10493-014-9773-3. この論文は出版社版でありません。引用の際には出版社版をご確認ご利用ください。 This is not the published version. Please cite only the published version. |
URI: | http://hdl.handle.net/2433/199611 |
DOI(出版社版): | 10.1007/s10493-014-9773-3 |
PubMed ID: | 24509728 |
出現コレクション: | 学術雑誌掲載論文等 |
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