蚂蚁的海绵状组织含有外分泌腺

IF 1.7 3区 农林科学 Q2 ENTOMOLOGY Arthropod Structure & Development Pub Date : 2023-03-01 DOI:10.1016/j.asd.2023.101246
Chu Wang , Fu-Ya Chung , Chung-Chi Lin , Joshua C. Gibson , Sara McGuire , Andrew V. Suarez , Johan Billen
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引用次数: 1

摘要

昆虫的角质层是多功能的,通常包括用于支撑、交流或保护的突起。在Strumigenys属蚂蚁表现出一种特殊的蜂窝状海绵状组织,覆盖其叶柄、叶柄后,有时也覆盖后介膜和第一胃段的前部。该组织在工蜂和蜂王中非常发达,而在雄蜂中则少得多。我们发现这种海绵状组织与一种新的外分泌腺有关,这种外分泌腺是由3级分泌细胞组成的,这些细胞聚集在角质层延伸的主要支柱下面,它们相关的狭窄导管进入这些延伸,并通过小毛孔在表面打开。这种分泌物的化学性质和功能尚不清楚。蜂窝状结构可能在腺体分泌物的储存和分散中起作用。除了海绵状组织腺外,叶柄和叶柄后区域还含有叶柄间腺和叶柄后腺,叶柄和叶柄后腺的导管通过叶柄间膜打开,形成与下一节的连接。未来的工作旨在识别这些腺体分泌的化学物质,将揭示这些不寻常结构的功能。
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The spongiform tissue in Strumigenys ants contains exocrine glands

The insect cuticle is multifunctional and often includes projections used for support, communication or protection. Ants in the genus Strumigenys exhibit a peculiar honeycomb-like spongiform tissue that covers their petiole, postpetiole and sometimes also the posterior mesosoma and anterior part of the first gastral segment. The tissue is abundantly developed in workers and queens, and much reduced in males. We found this spongiform tissue is associated with a novel exocrine gland that is made up by class-3 secretory cells that are clustered underneath the major pillars of the cuticular extensions, their associated narrow ducts enter these extensions and open at the surface through small pores. The chemical nature and function of the secretion are still unknown. The honeycomb texture may act in the storage and dispersion of the glandular secretions. In addition to the spongiform tissue gland, the posterior region of the petiole and postpetiole also contain intersegmental petiole and postpetiole glands, of which the ducts open through the intersegmental membrane that forms the connection with the next segment. Future work aimed at identifying the chemicals secreted by these glands will shed light onto the function of these unusual structures.

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来源期刊
CiteScore
3.50
自引率
10.00%
发文量
54
审稿时长
60 days
期刊介绍: Arthropod Structure & Development is a Journal of Arthropod Structural Biology, Development, and Functional Morphology; it considers manuscripts that deal with micro- and neuroanatomy, development, biomechanics, organogenesis in particular under comparative and evolutionary aspects but not merely taxonomic papers. The aim of the journal is to publish papers in the areas of functional and comparative anatomy and development, with an emphasis on the role of cellular organization in organ function. The journal will also publish papers on organogenisis, embryonic and postembryonic development, and organ or tissue regeneration and repair. Manuscripts dealing with comparative and evolutionary aspects of microanatomy and development are encouraged.
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