Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Lipovšek, S; Novak, T; Janžekovič, F; Pabst, MA.
Role of the fat body in the cave crickets Troglophilus cavicola and Troglophilus neglectus (Rhaphidophoridae, Saltatoria) during overwintering.
Arthropod Struct Dev. 2011; 40(1):54-63
Doi: 10.1016/j.asd.2010.09.002
Web of Science
PubMed
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- Co-Autor*innen der Med Uni Graz
- Pabst Maria-Anna
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- Abstract:
- The cave crickets Troglophilus cavicola and Troglophilus neglectus are the most widely distributed European species of the family Rhaphidophoridae. Their life cycles span two years. They overwinter twice in caves in 4-6 months lasting diapause, T. cavicola in warmer microhabitats. In caves, older T. cavicola undergo sexual maturation, while T. neglectus do not. We hypothesized that the use of energy-supplying compounds and reserve proteins in the fat body is more extensive in T. cavicola than in T. neglectus. We analyzed the contents and morphology of lipid droplets, glycogen rosettes and protein granula at the beginning, the middle and the end of overwintering applying optic, TEM and biochemical methods. In all individuals, the fat body is composed of about 40 oval ribbons consisted of gradually changing adipocytes and urocytes. T. cavicola use glycogen continuously, and stop using lipids in the middle of overwintering, while this is inverse in T. neglectus. Till the middle of overwintering, all individuals exploit proteins, afterwards they are unevenly exploited. We found that the fat body is differently engaged in metabolism of both cave crickets during overwintering, supporting a more glycogen-dependent metabolism in T. cavicola, and a more lipid-dependent one in T. neglectus. Copyright © 2010 Elsevier Ltd. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
- Adipocytes - cytology
- Animals -
- Ecosystem -
- Fat Body - anatomy & histology
- Fat Body - cytology
- Fat Body - metabolism
- Female -
- Glycogen - analysis
- Glycogen - metabolism
- Insect Proteins - analysis
- Insect Proteins - metabolism
- Lipid Metabolism -
- Lipids - analysis
- Male -
- Orthoptera - anatomy & histology
- Orthoptera - cytology
- Orthoptera - metabolism
- Seasons -
- Sex Factors -
- Sexual Maturation -
- Sexual Maturation -
- Species Specificity -
- Find related publications in this database (Keywords)
- Diapause
- Fat body
- Dynamics of reserve substances
- Adipocytes
- Urocytes