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Anatomy, Histology, and Ultrastructure of Salivary Glands of the Burrower Bug, Scaptocoris castanea (Hemiptera: Cydnidae)

Published online by Cambridge University Press:  01 October 2019

Jamile Fernanda Silva Cossolin
Affiliation:
Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais 36570-900, Brazil
Luis Carlos Martínez
Affiliation:
Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais 36570-900, Brazil
Monica Josene Barbosa Pereira
Affiliation:
Department of Agronomy, State University of Mato Grosso, Tangará da Serra, Mato Grosso 78300-000, Brazil
Lucia Madalena Vivan
Affiliation:
Fundação de Apoio a Pesquisa Agropecuária de Mato Grosso, Rondonópolis, Mato Grosso 78750-360, Brazil
Hakan Bozdoğan
Affiliation:
Department of Plant and Animal Production, Vocational School of Technical Sciences, Kirsehir Ahi Evran University, 40100 Kirsehir, Turkey
Muhammad Fiaz
Affiliation:
Department of Entomology, Federal University of Viçosa, Viçosa, Minas Gerais 36570-900, Brazil
José Eduardo Serrão*
Affiliation:
Department of General Biology, Federal University of Viçosa, Viçosa, Minas Gerais 36570-900, Brazil
*
*Author for correspondence: José Eduardo Serrão, E-mail: [email protected]
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Abstract

The burrower bug Scaptocoris castanea Perty, 1830 (Hemiptera: Cydnidae) is an agricultural pest feeding on roots of several crops. The histology and ultrastructure of the salivary glands of S. castanea were described. The salivary system has a pair of principal salivary glands and a pair of accessory salivary glands. The principal salivary gland is bilobed with anterior and posterior lobes joined by a hilus where an excretory duct occurs. The accessory salivary gland is tubular with a narrow lumen that opens into the hilus near the excretory duct, suggesting that its secretion is stored in the lumen of the principal gland. The cytoplasm of the secretory cells is rich in the rough endoplasmic reticulum, secretory vesicles with different electron densities and mitochondria. At the base of the accessory gland epithelium, there were scattered cells that do not reach the gland lumen, with the cytoplasm rich in the rough endoplasmic reticulum, indicating a role in protein production. Data show that principal and accessory salivary glands of S. castanea produce proteinaceous saliva. This is the first morphological description of the S. castanea salivary system that is similar to other Hemiptera Pentatomomorpha, but with occurrence of basal cells in the accessory salivary gland.

Type
Micrographia
Copyright
Copyright © Microscopy Society of America 2019 

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