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Role of Maxilla 2 and Its Setae during Feeding in the Shrimp Palaemon adspersus (Crustacea: Decapoda)
The movements of the basis of maxilla 2 in Palaemon adspersus were examined using macro-video recordings, and the morphology of its setae was examined using both scanning and transmission electron microscopy. The basis of maxilla 2 performs stereotypical movements in the latero-medial plane and gent...
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Published in: | The Biological bulletin (Lancaster) 2003-04, Vol.204 (2), p.126-137 |
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description | The movements of the basis of maxilla 2 in Palaemon adspersus were examined using macro-video recordings, and the morphology of its setae was examined using both scanning and transmission electron microscopy. The basis of maxilla 2 performs stereotypical movements in the latero-medial plane and gently touches the food with a frequency of 3-5 Hz. The medial rim of the basis of maxilla 2 carries three types of seta. Type 1 is serrate, type 2 and 3 are serrulate, and type 2 has a prominent terminal pore. Type 2 is innervated by 18-25 sensory cells whose cilia protrude through the terminal pore and are in direct contact with the external environment. The structure of type 2 setae indicates that they are mainly gustatory, although still bimodal due to their innervation by presumed chemosensory and mechanosensory neurons. Distally, the three types of setae have a complex arrangement of the cuticle involving water-filled canals, which may serve to improve flexibility. Type 1 and 3 setae have fewer sensory cells (4-9) but probably also have a bimodal sensory function. The function of type 1 setae is probably to protect type 2 setae, while type 3 setae might serve to groom the ventral side of the basis of maxilla 1. |
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Distally, the three types of setae have a complex arrangement of the cuticle involving water-filled canals, which may serve to improve flexibility. Type 1 and 3 setae have fewer sensory cells (4-9) but probably also have a bimodal sensory function. The function of type 1 setae is probably to protect type 2 setae, while type 3 setae might serve to groom the ventral side of the basis of maxilla 1.</description><identifier>ISSN: 0006-3185</identifier><identifier>EISSN: 1939-8697</identifier><identifier>DOI: 10.2307/1543548</identifier><identifier>PMID: 12700143</identifier><language>eng</language><publisher>United States: Marine Biological Laboratory</publisher><subject>Analysis ; Animal Structures - innervation ; Animal Structures - ultrastructure ; Animals ; Biologi ; Biological research ; Biological Sciences ; Biology, Experimental ; Biomechanical Phenomena ; Canals ; Cells ; Cilia ; Crustaceans ; Developmental biology ; Electron microscopy ; Extracellular matrix ; Feeding Behavior - physiology ; Food movements ; Insect morphology ; Lobsters ; Maxilla ; Microscopy, Electron ; Morphology ; Morphology (Biology) ; Mouthparts ; Natural Sciences ; Naturvetenskap ; Neurobiology and Behavior ; Palaemon adspersus ; Palaemonidae - anatomy & histology ; Palaemonidae - physiology ; Physiological aspects ; Sensilla ; Shellfish ; Shrimps ; Shrimps (Animals) ; Zoologi ; Zoology</subject><ispartof>The Biological bulletin (Lancaster), 2003-04, Vol.204 (2), p.126-137</ispartof><rights>Copyright 2003 The Marine Biological Laboratory</rights><rights>COPYRIGHT 2003 University of Chicago Press</rights><rights>COPYRIGHT 2003 University of Chicago Press</rights><rights>Copyright Marine Biological Laboratory Apr 2003</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c776t-b79ef1f34fbe84469e16b07976a934f419ee80111cda79e6913e16a9df59d9f13</citedby><cites>FETCH-LOGICAL-c776t-b79ef1f34fbe84469e16b07976a934f419ee80111cda79e6913e16a9df59d9f13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.jstor.org/stable/pdf/1543548$$EPDF$$P50$$Gjstor$$H</linktopdf><linktohtml>$$Uhttps://www.jstor.org/stable/1543548$$EHTML$$P50$$Gjstor$$H</linktohtml><link.rule.ids>230,314,780,784,885,27924,27925,58238,58471</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12700143$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink><backlink>$$Uhttps://lup.lub.lu.se/record/312834$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Garm, A.</creatorcontrib><creatorcontrib>Hallberg, E.</creatorcontrib><creatorcontrib>Høeg, J. T.</creatorcontrib><title>Role of Maxilla 2 and Its Setae during Feeding in the Shrimp Palaemon adspersus (Crustacea: Decapoda)</title><title>The Biological bulletin (Lancaster)</title><addtitle>Biol Bull</addtitle><description>The movements of the basis of maxilla 2 in Palaemon adspersus were examined using macro-video recordings, and the morphology of its setae was examined using both scanning and transmission electron microscopy. The basis of maxilla 2 performs stereotypical movements in the latero-medial plane and gently touches the food with a frequency of 3-5 Hz. The medial rim of the basis of maxilla 2 carries three types of seta. Type 1 is serrate, type 2 and 3 are serrulate, and type 2 has a prominent terminal pore. Type 2 is innervated by 18-25 sensory cells whose cilia protrude through the terminal pore and are in direct contact with the external environment. 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The function of type 1 setae is probably to protect type 2 setae, while type 3 setae might serve to groom the ventral side of the basis of maxilla 1.</description><subject>Analysis</subject><subject>Animal Structures - innervation</subject><subject>Animal Structures - ultrastructure</subject><subject>Animals</subject><subject>Biologi</subject><subject>Biological research</subject><subject>Biological Sciences</subject><subject>Biology, Experimental</subject><subject>Biomechanical Phenomena</subject><subject>Canals</subject><subject>Cells</subject><subject>Cilia</subject><subject>Crustaceans</subject><subject>Developmental biology</subject><subject>Electron microscopy</subject><subject>Extracellular matrix</subject><subject>Feeding Behavior - physiology</subject><subject>Food movements</subject><subject>Insect morphology</subject><subject>Lobsters</subject><subject>Maxilla</subject><subject>Microscopy, Electron</subject><subject>Morphology</subject><subject>Morphology (Biology)</subject><subject>Mouthparts</subject><subject>Natural Sciences</subject><subject>Naturvetenskap</subject><subject>Neurobiology and Behavior</subject><subject>Palaemon adspersus</subject><subject>Palaemonidae - anatomy & histology</subject><subject>Palaemonidae - physiology</subject><subject>Physiological aspects</subject><subject>Sensilla</subject><subject>Shellfish</subject><subject>Shrimps</subject><subject>Shrimps (Animals)</subject><subject>Zoologi</subject><subject>Zoology</subject><issn>0006-3185</issn><issn>1939-8697</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><recordid>eNqN0l9v0zAQAPAIgVgZiG-ALDT-9CHDl7hJzNtU2KhUGKLwbF3iS5oqjYOdiPHtcZVqU1ERk2VZsX8-Xc4XBM-Bn0cxT9_BTMQzkT0IJiBjGWaJTB8GE855EsaQzU6CJ85t_CePQDwOTiBKOQcRTwL6ZhpipmSf8aZuGmQRw1azRe_YinokpgdbtxW7JNK7tW5Zvya2Wtt627Gv2CBtTctQu46sGxx7O7eD67EgfM8-UIGd0Th9GjwqsXH0bL-eBj8uP36ffwqX11eL-cUyLNI06cM8lVRCGYsyp0yIRBIkOU9lmqD0mwIkUcYBoNDoaSIh9gKlLmdSyxLi02A5xnW_qBty1fks0f5WBmvVDJ2fuZ_KkYqjSGrIc8UF5kqkCCrP41RxqTVmhT_h6MO9HsN11vwcyPVqW7uCfJlaMoNTaQwyhST6L4Qsm0khYg9f_gU3ZrCtr4mKIi4z77hH4YgqbEjVbWl6i0VFLVlsTEtl7bcvgEOUgIDdX58f8X5o2tbF0QvTgwve9HTTVzg4pxarL_e22dXy0IbHbGGahipS_qnn14f-zegLa5yzVN4-GHC162u172svX-zrNuRb0ndu38gevBrBUKzrAivTWfIJ3lb3LtD0Pk51uvT2bLQb1xv7z9z-AG9KEec</recordid><startdate>20030401</startdate><enddate>20030401</enddate><creator>Garm, A.</creator><creator>Hallberg, E.</creator><creator>Høeg, J. 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T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Role of Maxilla 2 and Its Setae during Feeding in the Shrimp Palaemon adspersus (Crustacea: Decapoda)</atitle><jtitle>The Biological bulletin (Lancaster)</jtitle><addtitle>Biol Bull</addtitle><date>2003-04-01</date><risdate>2003</risdate><volume>204</volume><issue>2</issue><spage>126</spage><epage>137</epage><pages>126-137</pages><issn>0006-3185</issn><eissn>1939-8697</eissn><abstract>The movements of the basis of maxilla 2 in Palaemon adspersus were examined using macro-video recordings, and the morphology of its setae was examined using both scanning and transmission electron microscopy. The basis of maxilla 2 performs stereotypical movements in the latero-medial plane and gently touches the food with a frequency of 3-5 Hz. The medial rim of the basis of maxilla 2 carries three types of seta. Type 1 is serrate, type 2 and 3 are serrulate, and type 2 has a prominent terminal pore. Type 2 is innervated by 18-25 sensory cells whose cilia protrude through the terminal pore and are in direct contact with the external environment. The structure of type 2 setae indicates that they are mainly gustatory, although still bimodal due to their innervation by presumed chemosensory and mechanosensory neurons. Distally, the three types of setae have a complex arrangement of the cuticle involving water-filled canals, which may serve to improve flexibility. Type 1 and 3 setae have fewer sensory cells (4-9) but probably also have a bimodal sensory function. The function of type 1 setae is probably to protect type 2 setae, while type 3 setae might serve to groom the ventral side of the basis of maxilla 1.</abstract><cop>United States</cop><pub>Marine Biological Laboratory</pub><pmid>12700143</pmid><doi>10.2307/1543548</doi><tpages>12</tpages><oa>free_for_read</oa></addata></record> |
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subjects | Analysis Animal Structures - innervation Animal Structures - ultrastructure Animals Biologi Biological research Biological Sciences Biology, Experimental Biomechanical Phenomena Canals Cells Cilia Crustaceans Developmental biology Electron microscopy Extracellular matrix Feeding Behavior - physiology Food movements Insect morphology Lobsters Maxilla Microscopy, Electron Morphology Morphology (Biology) Mouthparts Natural Sciences Naturvetenskap Neurobiology and Behavior Palaemon adspersus Palaemonidae - anatomy & histology Palaemonidae - physiology Physiological aspects Sensilla Shellfish Shrimps Shrimps (Animals) Zoologi Zoology |
title | Role of Maxilla 2 and Its Setae during Feeding in the Shrimp Palaemon adspersus (Crustacea: Decapoda) |
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