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Arthropod Struct Dev

Title:		"Sternal gland structures in males of bean flower thrips, Megalurothrips sjostedti, and Poinsettia thrips, Echinothrips americanus, in comparison with those of western flower thrips, Frankliniella occidentalis (Thysanoptera: Thripidae)"
Author(s):		Krueger S; Subramanian S; Niassy S; Moritz GB;
Address:		"Institute of Biology, Faculty of Natural Sciences, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Str. 4, 06120 Halle, Germany. Plant Health Division, International Centre of Insect Physiology and Ecology (icipe), PO Box 30772-00100, Nairobi, Kenya. Institute of Biology, Faculty of Natural Sciences, Martin Luther University Halle-Wittenberg, Heinrich-Damerow Str. 4, 06120 Halle, Germany. Electronic address: gerald.moritz@zoologie.uni-halle.de"
Journal Title:		Arthropod Struct Dev
Year:		2015
Volume:		20150726
Issue:		5
Page Number:		455 - 467
DOI:		10.1016/j.asd.2015.07.002
ISSN/ISBN:		1873-5495 (Electronic) 1467-8039 (Linking)
Abstract:		"Sternal pores are important features for identification of male thrips, especially within the subfamily Thripinae. They vary in shape, size and distribution even between species of one genus. Their functional role is speculated to be that of sex- and/or aggregation pheromone production. Yet, sexual aggregations are not reported in Echinothrips americanus, known to have sternal pores, while we observed aggregations in Megalurothrips sjostedti, previously reported to lack them. We examined the sternal glands and pores of the thripine species E. americanus and M. sjostedti males, in comparison with those of Frankliniella occidentalis using light microscopy, as well as scanning and transmission electron microscopy. Pore plates of F. occidentalis were ellipsoid and medial on sternites III-VII, while in E. americanus they were distributed as multiple micro pore plates on sternites III-VIII. In M. sjostedti they appeared as an extremely small pore in front of the posterior margin of each of sternites IV-VII. Pore plate and pore plate area were distributed similarly on sternites III-VII in F. occidentalis. However, in E. americanus the total pore plate area increased significantly from sternites III to VIII. Ultrastructure of cells associated with sternal glands showed typical characteristics of gland cells that differ in size, shape and number. The function of sternal glands is further discussed on the basis of morphological comparisons with other thrips species"
Keywords:		"Animals Exocrine Glands/*anatomy & histology/ultrastructure Male Microscopy, Electron, Scanning Microscopy, Electron, Transmission Thysanoptera/*anatomy & histology/ultrastructure Echinothrips americanus Frankliniella occidentalis Megalurothrips sjostedti;"
Notes:		"MedlineKrueger, Stephanie Subramanian, Sevgan Niassy, Saliou Moritz, Gerald B eng Research Support, Non-U.S. Gov't England 2015/07/29 Arthropod Struct Dev. 2015 Sep; 44(5):455-67. doi: 10.1016/j.asd.2015.07.002. Epub 2015 Jul 26"