Desiccation tolerance in diapausing spider mites Tetranychus urticae and T. kanzawai (Acari : Tetranychidae)
Desiccation tolerance in diapausing spider mites Tetranychus urticae and T. kanzawai (Acari : Tetranychidae)
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滞育叶螨 Tetranychus urticae 和 T. kanzawai（螨虫：Tetranychidae）的干燥耐受性
DOI：
10.1007/s10493-013-9760-0
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发表时间：
2014
影响因子：
2.2
通讯作者：
Ghazy N. A. and T. Suzuki
中科院分区：
文献类型：
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作者：
Roel R;Suralta;Mana Kano-Nakata;Thiem Thi Tran Akira Yamauchi;Ghazy N. A. and T. Suzuki
本文研究了蒸汽压差（VPD）的变化对滞育（冬季）和非滞育（夏季）叶螨（螨目：叶螨科）的生存的影响。在25℃条件下，分别在0.0、0.4、0.7、1.5、1.9、2.7 kPa的vpd下饲养3、6、9、12、15 d。两种物种的滞育雌虫在≥0.4 kPa的VPD条件下保持≥6天，均能明显耐受干燥。在不发生干燥的水饱和条件下（VPD = 0.0 kPa），滞育雌虫表现出较高的饥饿耐受性：90%的滞育雌虫存活达15天。在大多数条件下，对干燥和饥饿的耐受性没有种间差异。这些结果表明，滞育功能增加了对干燥和饥饿的耐受性。这种对恶劣环境的多重耐受性可能支持了蜘蛛螨的冬季生存。
We investigated the effects of changes in vapor pressure deficit (VPD) on the survival of diapausing (winter form) and non-diapausing (summer form) spider mitesTetranychus urticaeKoch andTetranychus kanzawaiKishida (Acari: Tetranychidae). Adult females of both species were kept without food at VPDs of 0.0, 0.4, 0.7, 1.5, 1.9, or 2.7 kPa for 3, 6, 9, 12, or 15 days at 25 °C. Diapausing females of both species kept at a VPD of ≥0.4 kPa for ≥6 days clearly tolerated desiccation. Under water-saturated conditions (VPD = 0.0 kPa), in which no desiccation occurred, diapausing females showed high starvation tolerance: 90 % survived for up to 15 days. No interspecific differences in tolerance to desiccation or starvation were observed under most conditions. These results indicate that diapause functions increase tolerance to desiccation and starvation. Such multiple tolerances to harsh environments might support winter survival in spider mites.