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Titolo:
Postembryonic proliferation in the spiny lobster antennular epithelium: Rate of genesis of olfactory receptor neurons is dependent on molt stage
Autore:
Harrison, PJH; Cate, HS; Swanson, ES; Derby, CD;
Indirizzi:
Georgia State Univ, Dept Biol, Atlanta, GA 30302 USA Georgia State Univ Atlanta GA USA 30302 Dept Biol, Atlanta, GA 30302 USA
Titolo Testata:
JOURNAL OF NEUROBIOLOGY
fascicolo: 1, volume: 47, anno: 2001,
pagine: 51 - 66
SICI:
0022-3034(200104)47:1<51:PPITSL>2.0.ZU;2-J
Fonte:
ISI
Lingua:
ENG
Soggetto:
OUTER OPTIC LOBES; CELL-DEATH; VOMERONASAL EPITHELIUM; PANULIRUS-ARGUS; CRAYFISH BRAIN; MANDUCA-SEXTA; ADULT RETINA; SENSE-ORGANS; STEM-CELLS; NEUROGENESIS;
Keywords:
olfaction; olfactory receptor neuron; neurogenesis; development; turnover; proliferation; invertebrate; crustacean; lobster; molt;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Citazioni:
46
Recensione:
Indirizzi per estratti:
Indirizzo: Harrison, PJH Georgia State Univ, Dept Biol, POB 4010, Atlanta, GA 30302 USA Georgia State Univ POB 4010 Atlanta GA USA 30302 A 30302 USA
Citazione:
P.J.H. Harrison et al., "Postembryonic proliferation in the spiny lobster antennular epithelium: Rate of genesis of olfactory receptor neurons is dependent on molt stage", J NEUROBIOL, 47(1), 2001, pp. 51-66

Abstract

Olfactory systems undergo continuous growth and turnover in many animals. Many decapod crustaceans, such as lobsters and crayfish, have indeterminategrowth, and in these animals, turnover of both peripheral and central components of the olfactory system occurs continuously throughout life. In thisstudy, we examine the dynamics of olfactory receptor neuron (ORN) proliferation in the antennule of the Caribbean spiny lobster, Panulirus argus, using in vivo incorporation of the cell proliferation marker BrdU, We show that addition of ORNs occurs in a "proximal proliferation zone" (PPZ), which exists on the proximo-lateral margin of the existing ORN population. The PPZis spatially and temporally dynamic in that it travels as a wave in the proximal and lateral directions in the antennule, This wave results in continuous addition of ORNs throughout the molt cycle. The rate of proliferation,as measured by the size and shape of the PPZ, changes depending an the animal's molt stage. The rate is highest during premolt and lowest during intermolt, ORNs are the most prominent cell-type produced in the PPZ, but othercell types, including glia, are also produced, Patches of proliferating epithelial cells occur immediately proximal to the PPZ, suggesting that neuronal and glial precursors reside in this region. Possible mechanisms for peripheral and central modulation of ORN development are discussed, (C) 2001 John Wiley & Sons, Inc.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/06/20 alle ore 02:34:47