Back to Search
Start Over
Sperm ultrastructure of the honey bee (Apis mellifera) (L) (Hymenoptera, Apidae) with emphasis on the nucleus-flagellum transition region
- Source :
- LOCUS Repositório Institucional da UFV, Universidade Federal de Viçosa (UFV), instacron:UFV, Repositório Institucional da UnB, Universidade de Brasília (UnB), instacron:UNB
- Publication Year :
- 2001
-
Abstract
- The flagellum of Apis mellifera (Hymenoptera, Apidae) consists of two mitochondrial derivatives, an axoneme and two accessory bodies. The mitochondrial derivatives are of unequal size and lie parallel to the axoneme. In the larger derivative four regions can be distinguished while in the smaller, only three. The region occurring only in the larger derivative consists of paracystalline material. The smaller mitochondrial derivative terminates anterior to the larger one. An extremely long centriolar adjunct is observed between the nucleus and the smaller mitochondrial derivative. This adjunct is compact, very electron dense and gradually tapers from base toward apex, finishing at the anterior extremity of the axonemal microtubules. In this flagellar region, there is only one accessory body present between the larger mitochondrial derivative and the axoneme. Anteriorly, the tips of the axonemal microtubules are inserted in a well developed mass of granular appearance. This material surrounds the nuclear base, separating it from the anterior end of the larger mitochondrial derivative. We believe that the structure identified here as a centriolar adjunct is homologous to that observed in Formicidae, Ichneumonoidea and Symphyta. Therefore, very probably, it is common to most Hymenoptera.
- Subjects :
- Axoneme
Male
Honey bee
Abelha - espermatozóides
Centriole
Biology
Mitochondrion
Flagellum
Centriolar adjunct
Microtubules
Mitochondrial derivative
medicine
Animals
Centrioles
Cell Nucleus
Cell Biology
General Medicine
Anatomy
Bees
Spermatozoa
Sperm
Cell biology
Apex (geometry)
Mitochondria
medicine.anatomical_structure
Espermatozóides - inseto
Ultrastructure
Sperm Tail
Nucleus
Developmental Biology
Subjects
Details
- ISSN :
- 00408166
- Volume :
- 32
- Issue :
- 4
- Database :
- OpenAIRE
- Journal :
- Tissuecell
- Accession number :
- edsair.doi.dedup.....3aa859dacd3041035ccce3f3fd504a8d