Role of maxilla 2 and its setae during feeding in the shrimp Palaemon adspersus (Crustacea : Decapoda)
(2003) In Biological Bulletin 204(2). p.126-137- 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... (More)
- 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 I and 3 setae have fewer sensory cells (4-9) but probably also have a bimodal sensory function. The function of type I 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. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/312834
- author
- Garm, A ; Hallberg, Eric LU and Hoeg, JT
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Biological Bulletin
- volume
- 204
- issue
- 2
- pages
- 126 - 137
- publisher
- Marine Biological Laboratory
- external identifiers
-
- pmid:12700143
- wos:000182460500003
- scopus:0242668862
- ISSN
- 0006-3185
- language
- English
- LU publication?
- yes
- id
- 3229d1bb-04ab-47a1-bb37-09dda8c1bb0a (old id 312834)
- alternative location
- http://www.biolbull.org/cgi/content/abstract/204/2/126
- date added to LUP
- 2016-04-01 16:19:16
- date last changed
- 2022-03-07 05:06:02
@article{3229d1bb-04ab-47a1-bb37-09dda8c1bb0a,
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 I and 3 setae have fewer sensory cells (4-9) but probably also have a bimodal sensory function. The function of type I 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.}},
author = {{Garm, A and Hallberg, Eric and Hoeg, JT}},
issn = {{0006-3185}},
language = {{eng}},
number = {{2}},
pages = {{126--137}},
publisher = {{Marine Biological Laboratory}},
series = {{Biological Bulletin}},
title = {{Role of maxilla 2 and its setae during feeding in the shrimp Palaemon adspersus (Crustacea : Decapoda)}},
url = {{http://www.biolbull.org/cgi/content/abstract/204/2/126}},
volume = {{204}},
year = {{2003}},
}