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Micron

Title:		Distribution patterns and morphology of sensilla on the antennae of Plutella xylostella (L.)-A scanning and transmission electron microscopic study
Author(s):		Yan XZ; Deng CP; Xie JX; Wu LJ; Sun XJ; Hao C;
Address:		"Agricultural College, Shanxi Agricultural University, Taigu 030801, PR China. Electronic address: yanxizhong80@163.com. Forestry College, Shanxi Agricultural University, Taigu 030801, PR China. Agricultural College, Shanxi Agricultural University, Taigu 030801, PR China. Agricultural College, Shanxi Agricultural University, Taigu 030801, PR China; Department of Exp. Oncology, University of Alberta, Cross Cancer Institute, Edmonton, T6G1Z2, Canada. Electronic address: xjsun@ualberta.ca. Agricultural College, Shanxi Agricultural University, Taigu 030801, PR China. Electronic address: sxauhc@163.com"
Journal Title:		Micron
Year:		2017
Volume:		20170906
Issue:
Page Number:		1 - 11
DOI:		10.1016/j.micron.2017.08.002
ISSN/ISBN:		1878-4291 (Electronic) 0968-4328 (Linking)
Abstract:		"The antennal morphology, types of antennal sensilla, fine structures and distributions of the sensilla in Plutella xylostella L. (Lepidoptera: Plutellidae) were studied by scanning (SEM) and transmission (TEM) electron microscopy. The antenna, scape, pedicel and flagellum were all longer in males than in females. A total of seventeen types of sensilla were identified on the antennae: trichodea (two subtypes), basiconica, coeloconica (three subtypes), Bohm's bristles (two subtypes), styloconica (two subtypes), squamiformia, auricillica, furcatea (three subtypes), cupuliform organs and terminal sensory pegs. Their numbers and distributions were studied in both male and female, and we found some of the sensilla exhibited various degrees of sexual dimorphisms. Sensilla trichodea were the most abundant of all sensillum types whereas terminal peg was present only once per antenna. Sensilla trichodea in males were bigger (subtype I) and more abundant than in females, however, sensilla basiconica and squamiformia were significantly smaller and less abundant in males than in females. Sensilla styloconica II was only found in females. Seven common sensillum types were studied with TEM to reveal its fine internal structure providing morphological evidences of their sensory functions. Sensilla trichodea I, basiconica and coeloconica III have porous walls suggesting olfactory functions. Combined with the sexual dimorphism, sensilla trichodea male P. xylostella might be involved in detecting sexual pheromones and sensilla basiconica of female might respond to host plant volatiles. Whereas sensilla coeloconica (subtype I and II) and Bohm's bristles have nonporous walls suggesting non-olfactory functions. The study presented a thorough inventory of sensilla on the antennae and laid a solid foundation for future functional studies of these sensilla in this important economical pest"
Keywords:		"Animals Arthropod Antennae/anatomy & histology/ultrastructure Female Male Microscopy, Electron, Scanning/methods Microscopy, Electron, Transmission/methods Moths/*anatomy & histology Sensilla/anatomy & histology/*ultrastructure Sex Characteristics Antenna;"
Notes:		"MedlineYan, Xi-Zhong Deng, Cai-Ping Xie, Jiao-Xin Wu, Lan-Jun Sun, Xue-Jun Hao, Chi eng England 2017/09/19 Micron. 2017 Dec; 103:1-11. doi: 10.1016/j.micron.2017.08.002. Epub 2017 Sep 6"