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Ecological functions of tetrodotoxin in a deadly polyclad flatworm.

Abstract：

:The deadly neurotoxin tetrodotoxin (TTX) is found in a variety of animal phyla and, because of its toxicity, is most often assumed to deter predation. On the tropical Pacific island of Guam, we found an undescribed flatworm (planocerid sp. 1) that contains high levels of TTX and its analogs. Through ecological experiments, we show that TTXs do not protect these flatworms from some predators but instead are used to capture mobile prey. TTX is known to have multiple ecological functions, which has probably led to its widespread presence among prokaryotes and at least 10 metazoan phyla.

journal_name

Proc Natl Acad Sci U S A

journal_title

Proceedings of the National Academy of Sciences of the United States of America

authors

Ritson-Williams R,Yotsu-Yamashita M,Paul VJ

doi

10.1073/pnas.0506093103

keywords:

subject

Has Abstract

pub_date

2006-02-28 00:00:00

pages

3176-9

issue

9

eissn

0027-8424

issn

1091-6490

pii

0506093103

journal_volume

103

pub_type

杂志文章

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