Comparative morphology and cytology of siphons and siphonal sensory organs in selected bivalve molluscs
Comparative morphology and cytology of siphons and siphonal sensory organs in selected bivalve molluscs
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选定双壳类软体动物虹吸管和虹吸感觉器官的比较形态和细胞学
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发表时间：
2000
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通讯作者：
L. Fishelson
中科院分区：
文献类型：
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作者：
L. Fishelson
本文 报道了红海一组双壳类软体动物中有管和无管种的水道形态、解剖学和细胞学特征（Callista佛罗里达、Circe currogata、C.crocea、Lucinia dentifera、Dosinia histrio、Pitar hebraea、Tridacna maxima、Pteria aegyptica），以及来自地中海本文对刺海蜇（Spondylus spinosus）、辐射珠母贝（Pinctada radiata）、金龟子（Pinna nobilis）、截断斧螺（Donax trunculus）、半条纹蛤蜊（D.semistriatus）、蛤蜊（Mactra stultorum）、十字纹螺（Tapes decussatus）、噬石岩蛛（Petricola lithophaga）、法老臂齿兽（Brachidontes pharaonis）等10种常见鱼类进行了光镜和电镜观察。在所研究的贻贝类、牡蛎类和牡蛎类中，水道被纤毛上皮覆盖，其开口周围的少数触手与在地幔边缘发现的触手相同。与此相反，在veneroids研究，虹吸管覆盖着微绒毛上皮和他们的触角，特别是吸入虹吸管，揭示特征分支。虹吸管上和虹吸管内的I型、II型和III型纤毛感觉器官与其他双壳类相似，但在纤毛的尺寸、数量和形式上彼此不同。在所研究的mytiloid物种中，只发现了I型和II型器官。虹吸管的形式和结构以及它们上传感器的分布可以用作生态学以及系统发育考虑的标记。
Abstract The form, anatomy and cytology of the water-passages in siphon-possessing and siphon-lacking species of a selected group of bivalve molluscs from the Red Sea (Callista florida, Circe currogata, C. crocea, Lucinia dentifera, Dosinia histrio, Pitar hebraea, Tridacna maxima, Pteria aegyptica), and from the Mediterranean Sea (Spondylus spinosus, Pinctada radiata, Pinna nobilis, Donax trunculus, D. semistriatus, Mactra stultorum, Tapes decussatus, Petricola lithophaga, Brachidontes pharaonis) were studied by means of light and electron microscopy. In the mytiloids, ostreoids and ptrioids studied, the water-passages are covered by a ciliated epithelium and the few tentacles around their openings are identical to those found on the mantle edges. Contrary to this, in the veneroids studied, the siphons are covered by a microvillar epithelium and their tentacles, especially of the inhalant siphon, reveal characteristic branching. The so-called Type I, Type II and Type III ciliated sensory organs on and within the siphons are similar to those observed in other bivalves, differing from each other in the dimension, number and form of cilia. In the studied mytiloid species only Type I and Type II organs were found. The form and structure of the siphons and the distribution of sensors on them can be used as markers for ecological as well as phylogenetic considerations.