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Gross morphology and ultrastructure of the salivary glands of the stink bug predator Eocanthecona furcellata (Wolff)
Author(s) -
Gao Ping,
Liao Xianbin,
Wu Guoxing,
Li Lifang,
Lan Mingxian,
Hussain Mehboob,
Chen Bin,
Tang Guowen,
Xie Yonghui,
Gao Xi
Publication year - 2021
Publication title -
microscopy research and technique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.536
H-Index - 118
eISSN - 1097-0029
pISSN - 1059-910X
DOI - 10.1002/jemt.23581
Subject(s) - ultrastructure , biology , salivary gland , anatomy , endoplasmic reticulum , saliva , myoepithelial cell , cytoplasm , lobe , parenchyma , microbiology and biotechnology , immunohistochemistry , biochemistry , botany , immunology
Eocanthecona furcellata Wolff (Hemiptera: Pentatomidae) is a native generalist predator which attacks and kills its prey by first inserting its stylet into the prey's body and then injecting saliva into it. Here, we describe the histology and ultrastructure of its salivary glands. The study showed that the salivary glands were made up of pairs of principal and tubular accessory salivary glands. The principal salivary glands were bilobed and consisted of a smaller anterior lobe and a larger elongated posterior lobe. The ducts of the principal and accessory salivary glands were located in a narrow region between the anterior and posterior lobe known as the hilum. The principal salivary gland was lined with a single‐layered epithelium. The cells cytoplasm was enriched with rough endoplasmic reticulum and secretory, and the nucleus showed a higher level of uncondensed chromatin. The basal region of the cell had plasma membrane infoldings. The cytoplasm of the accessory gland was rich in rough endoplasmic reticulum and many large cavities. The ducts of the principal salivary gland were made up of a single layer of flattened cells which had a thin cuticle lining the apical portion. Variation in the lumen content of the different lobes, which made up the principal gland suggested that their chemical products also varied. These results indicate that these two salivary glands produce the proteins found in the saliva.