Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae)
Friesella schrottkyi is a small stingless bee (3-mm long) important for agricultural and native forest pollination. This study describes the morphology and morphometry of the midgut in F. schrottkyi forager workers. The F. schrottkyi midgut presents a single-layered epithelium with digestive, regene...
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doaj-3d70498a285640509e28de8eddcac63c2020-11-25T00:02:00ZengMDPI AGInsects2075-44502019-03-011037310.3390/insects10030073insects10030073Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae)André H. Oliveira0Wagner G. Gonçalves1Kenner M. Fernandes2Marcelo S. Barcellos3Wagner M. S. Sampaio4Marcos P. Lopes5Gustavo F. Martins6José E. Serrão7Department of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilDepartment of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilDepartment of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilInstituto Federal de Mato Grosso-IFMT. Campus avançado Diamantino, 78400-970 Diamantino, MT, BrazilDepartment of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilDepartment of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilDepartment of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilDepartment of General Biology, Universidade Federal de Viçosa, 36570-000 Viçosa, MG, BrazilFriesella schrottkyi is a small stingless bee (3-mm long) important for agricultural and native forest pollination. This study describes the morphology and morphometry of the midgut in F. schrottkyi forager workers. The F. schrottkyi midgut presents a single-layered epithelium with digestive, regenerative and endocrine cells. The digestive cells are similar along the entire midgut length with a spherical nucleus, apex with long striated border, cytoplasmic granules in the apical region and well-developed basal labyrinth associated with mitochondria, suggesting they are multifunctional, synthesizing digestive enzymes and peritrophic matrix compounds and absorbing nutrients. Regenerative cells are located around the basal region organized in nests with some cells with a spherical nucleus. Phe-Met-Arg-Phe-NH2-amide (FMRFamide) positive endocrine cells are restricted to the posterior midgut region, suggesting a paracrine function in the midgut. This is the first morphological description of the F. schrottkyi midgut contributing to the comprehension of the digestive process of this bee.http://www.mdpi.com/2075-4450/10/3/73digestive cellsdigestive tractparacrine function |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
André H. Oliveira Wagner G. Gonçalves Kenner M. Fernandes Marcelo S. Barcellos Wagner M. S. Sampaio Marcos P. Lopes Gustavo F. Martins José E. Serrão |
spellingShingle |
André H. Oliveira Wagner G. Gonçalves Kenner M. Fernandes Marcelo S. Barcellos Wagner M. S. Sampaio Marcos P. Lopes Gustavo F. Martins José E. Serrão Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae) Insects digestive cells digestive tract paracrine function |
author_facet |
André H. Oliveira Wagner G. Gonçalves Kenner M. Fernandes Marcelo S. Barcellos Wagner M. S. Sampaio Marcos P. Lopes Gustavo F. Martins José E. Serrão |
author_sort |
André H. Oliveira |
title |
Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae) |
title_short |
Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae) |
title_full |
Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae) |
title_fullStr |
Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae) |
title_full_unstemmed |
Morphology and Morphometry of the Midgut in the Stingless Bee Friesella schrottkyi (Hymenoptera: Apidae) |
title_sort |
morphology and morphometry of the midgut in the stingless bee friesella schrottkyi (hymenoptera: apidae) |
publisher |
MDPI AG |
series |
Insects |
issn |
2075-4450 |
publishDate |
2019-03-01 |
description |
Friesella schrottkyi is a small stingless bee (3-mm long) important for agricultural and native forest pollination. This study describes the morphology and morphometry of the midgut in F. schrottkyi forager workers. The F. schrottkyi midgut presents a single-layered epithelium with digestive, regenerative and endocrine cells. The digestive cells are similar along the entire midgut length with a spherical nucleus, apex with long striated border, cytoplasmic granules in the apical region and well-developed basal labyrinth associated with mitochondria, suggesting they are multifunctional, synthesizing digestive enzymes and peritrophic matrix compounds and absorbing nutrients. Regenerative cells are located around the basal region organized in nests with some cells with a spherical nucleus. Phe-Met-Arg-Phe-NH2-amide (FMRFamide) positive endocrine cells are restricted to the posterior midgut region, suggesting a paracrine function in the midgut. This is the first morphological description of the F. schrottkyi midgut contributing to the comprehension of the digestive process of this bee. |
topic |
digestive cells digestive tract paracrine function |
url |
http://www.mdpi.com/2075-4450/10/3/73 |
work_keys_str_mv |
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