responses of basophilic cells of the digestive gland of mussels to petroleum hydrocarbon exposure
responses of basophilic cells of the digestive gland of mussels to petroleum hydrocarbon exposure
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DOI：
10.3354/dao009221
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发表时间：
1990
影响因子：
1.4
通讯作者：
M. Cajaraville;G. Díez;I. Marigómez;E. Angulo
中科院分区：
文献类型：
--
作者：
M. Cajaraville;G. Díez;I. Marigómez;E. Angulo
对贻贝（Mytilus galloprovincialis Lmk）的消化腺进行了体视学研究。，暴露于两种原油和一种商业润滑油（每种油的3种不同浓度）的水容纳部分。分别于暴露21、35、77、91 d后取贻贝标本，石蜡切片采用点计数法测定嗜碱性细胞体积密度（VD）。暴露于石油碳氢化合物导致嗜碱性细胞体积密度显著的剂量依赖性增加。这是由于每个消化小管中存在较多的嗜碱性细胞，而嗜碱性细胞的大小明显保持不变。结果被解释为增强的上皮细胞再生，这可能与基本的消化过程有关。事实上，在嗜碱性细胞VD和分解小管的百分比之间存在显著的正线性相关。
A stereological study was conducted on the digestive gland of mussels Mytilus galloprovincialis Lmk., exposed to the water accomodated fraction of 2 crude oils and a commercial lubricant oil (3 hfferent concentrations of each). Mussels were sampled after 21, 35, 77 and 91 d exposures, and the volume density (VD) of basophllic cells was determined in paraffin sections by a point-counting method. Exposure to petroleum hydrocarbons resulted in a significant dose-dependent increase in basophilic cell volume density. This was due to the presence of higher numbers of basophilic cells per digestive tubule, while the size of basophlic cells remained apparently unchanged. Results are interpreted in terms of an enhanced epithelia] cell regeneration that might be linked to fundamental digestive processes. Indeed, a significant positive linear correlation exists between basophilic cell VD and the percentage of disintegrating tubules.