Photoprotection in tadpoles of the common frog, Rana temporaria
Photoprotection in tadpoles of the common frog, Rana temporaria
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DOI：
10.1016/s1011-1344(00)00136-6
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发表时间：
2000-12-01
影响因子：
5.4
通讯作者：
Mokri, C
中科院分区：
文献类型：
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作者：
Hofer, R;Mokri, C
在海拔2600米以下产卵的普通青蛙-蛙，可能受到UVB辐射的威胁。在实验室实验中，我们发现了一个特定的紫外线吸收物质（紫外线）在皮肤的蝌蚪与290和300 nm之间的最大吸收。可见光和紫外线都能诱导WAS的产生。从该领域的蝌蚪中发现的紫外线吸收光谱的浓度是一样高的实验室实验中发现的蝌蚪在模拟仲夏条件下的UVB辐射。紫外线吸收和黑色素沉着是两种强防晒因子的存在，这可能解释了红曲霉的高抵抗力。在高海拔地区，对强烈的UVB辐射的影响。(C)2000 Elsevier Science B. V.保留所有权利。
The common frog, Rana temporaria, spawning at altitudes up to 2600 m, is potentially threatened by UVB radiation. In laboratory experiments we found a specifically WE absorbing substance (UVAS) in the skin of tadpoles with maximum absorption between 290 and 300 nm. The production of WAS is induced by both visible light and ultraviolet radiation. The concentrations of UVAS found in tadpoles from the field are about as high as those found in tadpoles from laboratory experiments with UVB radiation under simulated mid-summer conditions. The existence of two powerful sun screen factors (UVAS and melanin pigmentation) may explain the high resistance of R. temporaria tadpoles to the intensive UVB radiation at high altitudes. (C) 2000 Elsevier Science B.V. All rights reserved.