Morphology and ultrastructure of the infrabuccal pocket in S trumigenys ants

Morphology and ultrastructure of the infrabuccal pocket in S trumigenys ants

The morphology of the infrabuccal pocket has been studied with light and electron microscopy (SEM, TEM) in 19 species of Strumigenys ants. The structural organization is similar in workers, queens and males, and supports the involvement of the pocket in the filtration of food particles before they c...

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Veröffentlicht in:Ventricular Restraint Improves Outcomes in HF Patients with CRT. - 2011. - Amsterdam [u.a.]
1. Verfasser: Wang, Chu (VerfasserIn)
Weitere Verfasser: Cocco, Alessio (BerichterstatterIn), Lin, Chung-Chi (BerichterstatterIn), Billen, Johan (BerichterstatterIn)
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2022transfer abstract
Zugriff auf das übergeordnete Werk:Ventricular Restraint Improves Outcomes in HF Patients with CRT
Schlagworte:Formicidae Infrabuccal pocket gland Histology
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520 |a The morphology of the infrabuccal pocket has been studied with light and electron microscopy (SEM, TEM) in 19 species of Strumigenys ants. The structural organization is similar in workers, queens and males, and supports the involvement of the pocket in the filtration of food particles before they can enter the digestive tract. A carpet of posteriorly oriented bristle hairs on the hypopharynx first guide ingested food into the pocket, where large solid particles are compacted into a pellet that will be regurgitated. The remaining products enter the digestive tract through a filtering wall of parallel hair combs lining the pharynx interior that are directed against the food flow. This mechanical filtering allows only liquids and sufficiently small food particles to enter the digestive system. The wall of the infrabuccal pocket is differentiated into a conspicuous glandular epithelium, of which the ultrastructural characteristics can be understood as an adaptation against the frequent shape changes of the pocket. The gland elaborates a non-proteinaceous secretion, although its functional significance still remains unknown. 
520 |a The morphology of the infrabuccal pocket has been studied with light and electron microscopy (SEM, TEM) in 19 species of Strumigenys ants. The structural organization is similar in workers, queens and males, and supports the involvement of the pocket in the filtration of food particles before they can enter the digestive tract. A carpet of posteriorly oriented bristle hairs on the hypopharynx first guide ingested food into the pocket, where large solid particles are compacted into a pellet that will be regurgitated. The remaining products enter the digestive tract through a filtering wall of parallel hair combs lining the pharynx interior that are directed against the food flow. This mechanical filtering allows only liquids and sufficiently small food particles to enter the digestive system. The wall of the infrabuccal pocket is differentiated into a conspicuous glandular epithelium, of which the ultrastructural characteristics can be understood as an adaptation against the frequent shape changes of the pocket. The gland elaborates a non-proteinaceous secretion, although its functional significance still remains unknown. 
650 7 |a Formicidae  |2 Elsevier 
650 7 |a Infrabuccal pocket gland  |2 Elsevier 
650 7 |a Histology  |2 Elsevier 
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700 1 |a Lin, Chung-Chi  |4 oth 
700 1 |a Billen, Johan  |4 oth 
773 0 8 |i Enthalten in  |n Elsevier Science  |t Ventricular Restraint Improves Outcomes in HF Patients with CRT  |d 2011  |g Amsterdam [u.a.]  |w (DE-627)ELV015921530 
773 1 8 |g volume:68  |g year:2022  |g pages:0 
856 4 0 |u https://doi.org/10.1016/j.asd.2022.101154  |3 Volltext 
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