Cnidarian internal stinging mechanism

被引：26
作者：
Schlesinger, Ami [1 ,2 ]
Zlotkin, Eliahu [3 ]
Kramarsky-Winter, Esti [1 ]
Loya, Y. [1 ]
机构：
[1] Tel Aviv Univ, Dept Zool, IL-69978 Tel Aviv, Israel
[2] Ruppin Acad Ctr, Sch Marine Sci, IL-40297 Michmoret, Israel
[3] Hebrew Univ Jerusalem, Dept Cell & Anim Biol, IL-91904 Jerusalem, Israel
来源：
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 2009年 / 276卷 / 1659期
关键词：
nematocyst; sea anemone; internal stinging mechanism; venom; digestion; SEA-ANEMONE; EFFERENT MECHANISMS; DISCHARGING CNIDAE; NEMATOCYST VENOM; AIPTASIA-PALLIDA; PHOSPHOLIPASE; SIPHONOPHORA; TENTACLE; HYDROZOA; PROTEIN;
D O I：
10.1098/rspb.2008.1586
中图分类号：
Q [生物科学];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
Stinging mechanisms generally deliver venomous compounds to external targets. However, nematocysts, the microscopic stinging organelles that are common to all members of the phylum Cnidaria, occur and act in both external and internal tissue structures. This is the first report of such an internal piercing mechanism. This mechanism identifies prey items within the body cavity of the sea anemone and actively injects them with cytolytic venom compounds. Internal tissues isolated from sea anemones caused the degradation of live Artemia salina nauplii in vitro. When examined, the nauplii were found to be pierced by discharged nematocysts. This phenomenon is suggested to aid digestive phagocytic processes in a predator otherwise lacking the means to masticate its prey.
引用
收藏
页码：1063 / 1067
页数：5
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