{"title":"日本石蟹(Petrolisthes japonicus)自切肢后肢体运动","authors":"K. Hamasaki, Yuuki Wachi, Shigeki Dan","doi":"10.1080/03949370.2021.1936653","DOIUrl":null,"url":null,"abstract":"Post-autotomy appendage movement has evolved independently in several vertebrate and invertebrate taxa. Moving appendage may divert a predator’s attention away from the body, allowing the prey to escape. Decapod crustaceans, particularly anomuran and brachyuran crabs, have been well studied in terms of autotomy; however, no studies have focused on post-autotomy limb behaviour. We first found post-autotomy limb movement in decapod crustaceans using the porcellanid crab Petrolisthes japonicus. Porcellanid crabs possess large chelipeds. The porcellanid crab autotomizes the cheliped readily when a predator crab grasps it by the cheliped, enabling it to escape. Our laboratory observations revealed that autotomized chelipeds of P. japonicus moved voluntarily: they repeated closing and stretching movements of the chela and remaining parts on the propodus-carpus joint. The number of strokes (a single sequential closing and stretching movement) and the total stroke duration of the chelipeds were about 28 times and 17 sec on average, respectively. Post-autotomy cheliped movement may further improve the anti-predator defence efficacy of large chelipeds with a hair-trigger autotomy response in porcellanid crabs.","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2021-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Post-autotomy limb movement in the porcellanid crab Petrolisthes japonicus\",\"authors\":\"K. Hamasaki, Yuuki Wachi, Shigeki Dan\",\"doi\":\"10.1080/03949370.2021.1936653\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Post-autotomy appendage movement has evolved independently in several vertebrate and invertebrate taxa. Moving appendage may divert a predator’s attention away from the body, allowing the prey to escape. Decapod crustaceans, particularly anomuran and brachyuran crabs, have been well studied in terms of autotomy; however, no studies have focused on post-autotomy limb behaviour. We first found post-autotomy limb movement in decapod crustaceans using the porcellanid crab Petrolisthes japonicus. Porcellanid crabs possess large chelipeds. The porcellanid crab autotomizes the cheliped readily when a predator crab grasps it by the cheliped, enabling it to escape. Our laboratory observations revealed that autotomized chelipeds of P. japonicus moved voluntarily: they repeated closing and stretching movements of the chela and remaining parts on the propodus-carpus joint. The number of strokes (a single sequential closing and stretching movement) and the total stroke duration of the chelipeds were about 28 times and 17 sec on average, respectively. Post-autotomy cheliped movement may further improve the anti-predator defence efficacy of large chelipeds with a hair-trigger autotomy response in porcellanid crabs.\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2021-07-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"99\",\"ListUrlMain\":\"https://doi.org/10.1080/03949370.2021.1936653\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1080/03949370.2021.1936653","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Post-autotomy limb movement in the porcellanid crab Petrolisthes japonicus
Post-autotomy appendage movement has evolved independently in several vertebrate and invertebrate taxa. Moving appendage may divert a predator’s attention away from the body, allowing the prey to escape. Decapod crustaceans, particularly anomuran and brachyuran crabs, have been well studied in terms of autotomy; however, no studies have focused on post-autotomy limb behaviour. We first found post-autotomy limb movement in decapod crustaceans using the porcellanid crab Petrolisthes japonicus. Porcellanid crabs possess large chelipeds. The porcellanid crab autotomizes the cheliped readily when a predator crab grasps it by the cheliped, enabling it to escape. Our laboratory observations revealed that autotomized chelipeds of P. japonicus moved voluntarily: they repeated closing and stretching movements of the chela and remaining parts on the propodus-carpus joint. The number of strokes (a single sequential closing and stretching movement) and the total stroke duration of the chelipeds were about 28 times and 17 sec on average, respectively. Post-autotomy cheliped movement may further improve the anti-predator defence efficacy of large chelipeds with a hair-trigger autotomy response in porcellanid crabs.
期刊介绍:
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.