Morphological and histochemical characterization of the digestive tract of the puffer fish Sphoeroides testudineus (Linnaeus 1758) (Tetraodontiformes: Tetraodontidae)
Morphological and histochemical characterization of the digestive tract of the puffer fish Sphoeroides testudineus (Linnaeus 1758) (Tetraodontiformes: Tetraodontidae)
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DOI：
10.1590/0001-3765201620150167
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发表时间：
2016-01-01
期刊：
影响因子：
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通讯作者：
MARI, RENATA B.
中科院分区：
文献类型：
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作者：
FAGUNDES, KAINÃ R.C.;ROTUNDO, MATHEUS M.;MARI, RENATA B.
对Sporoides testudineus消化道的形态学分析显示，其食道具有前部和后部以及腹袋。腹袋和肠之间未观察到胃。肠分为三段两环，远端有直肠通向肛门。组织化学分析表明，食道分泌酸性粘液分泌物，并且从肠的近端到远端区域杯状细胞有质的增加。直肠显示细胞分泌酸性和中性粘液。鉴于这些特征，该物种呈现出一种在其生态和行为之间建立联系的形态。
Morphological analysis of the digestive tract of Sphoeroides testudineus showed an esophagus with an anterior and a posterior portion, the abdominal pouch. No stomach was observed between the abdominal pouch and the intestine. The intestine was arranged in three segments and two loops, and the distal portion had the rectum opening into the anus. Histochemical analyses showed that the esophagus secreted acid mucosecretions, and that there was a qualitative increase in goblet cells from the proximal to distal area of the intestine. The rectum showed cells secreting acid and neutral mucus. Given these features, this species presents a morphology which creates a link between its ecology and behavior.