Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis
Changes in the content of protein, glycogen, neutral lipids and sterols were investigated in locust eggs from oviposition until larval hatching. The content of all of these nutritional reserves was higher in the eggs of S. gregaria because of their larger size, although relative changes in utilizati...
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| Format: | Article |
| Language: | English |
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Institute of Entomology, Biology Centre, Czech Academy of Science
2002-12-01
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| Series: | European Journal of Entomology |
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| Online Access: | https://www.eje.cz/artkey/eje-200204-0023_Quantitative_changes_in_protein_glycogen_and_fat_content_in_the_eggs_of_the_locusts_Locusta_migratoria_migrat.php |
| _version_ | 1831634397000892416 |
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| author | Václav NĚMEC |
| author_facet | Václav NĚMEC |
| author_sort | Václav NĚMEC |
| collection | DOAJ |
| description | Changes in the content of protein, glycogen, neutral lipids and sterols were investigated in locust eggs from oviposition until larval hatching. The content of all of these nutritional reserves was higher in the eggs of S. gregaria because of their larger size, although relative changes in utilization or synthesis of these materials during embryogenesis showed a more or less parallel course. The amount of protein increased progressively during embryogenesis, while glycogen and neutral lipids were successively metabolized or utilized for development of the embryo. There appeared significant relative differences in the way of utilizing energetic reserves during embryogenesis between the two species. This was especially manifested by a larger relative decrease in the content of neutral lipids (mainly triglyceride) in the eggs of S. gregaria. Conversely, the eggs of L. migratoria showed a larger relative utilization of glycogen reserves. The content of steroids was higher in the eggs of S. gregaria during the initial 6 days of embryonic development. Later on, during advanced stages of pharate larval development, the steroids were rapidly utilized and decreased in both species. The described changes in utilization of the main energetic resources were correlated with periods of tissue growth and differentiation and with the cuticulogenesis of the growing embryo. |
| first_indexed | 2024-12-19T05:53:16Z |
| format | Article |
| id | doaj.art-46fdd497222142248bdf522cf88509b0 |
| institution | Directory Open Access Journal |
| issn | 1210-5759 1802-8829 |
| language | English |
| last_indexed | 2024-12-19T05:53:16Z |
| publishDate | 2002-12-01 |
| publisher | Institute of Entomology, Biology Centre, Czech Academy of Science |
| record_format | Article |
| series | European Journal of Entomology |
| spelling | doaj.art-46fdd497222142248bdf522cf88509b02022-12-21T20:33:32ZengInstitute of Entomology, Biology Centre, Czech Academy of ScienceEuropean Journal of Entomology1210-57591802-88292002-12-0199455755910.14411/eje.2002.072eje-200204-0023Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesisVáclav NĚMEC0Institute of Entomology, Czech Academy of Sciences, Branišovská 31, České Budějovice, 370 05, Czech Republic; e-mail: nemec@entu.cas.czChanges in the content of protein, glycogen, neutral lipids and sterols were investigated in locust eggs from oviposition until larval hatching. The content of all of these nutritional reserves was higher in the eggs of S. gregaria because of their larger size, although relative changes in utilization or synthesis of these materials during embryogenesis showed a more or less parallel course. The amount of protein increased progressively during embryogenesis, while glycogen and neutral lipids were successively metabolized or utilized for development of the embryo. There appeared significant relative differences in the way of utilizing energetic reserves during embryogenesis between the two species. This was especially manifested by a larger relative decrease in the content of neutral lipids (mainly triglyceride) in the eggs of S. gregaria. Conversely, the eggs of L. migratoria showed a larger relative utilization of glycogen reserves. The content of steroids was higher in the eggs of S. gregaria during the initial 6 days of embryonic development. Later on, during advanced stages of pharate larval development, the steroids were rapidly utilized and decreased in both species. The described changes in utilization of the main energetic resources were correlated with periods of tissue growth and differentiation and with the cuticulogenesis of the growing embryo.https://www.eje.cz/artkey/eje-200204-0023_Quantitative_changes_in_protein_glycogen_and_fat_content_in_the_eggs_of_the_locusts_Locusta_migratoria_migrat.phpembryogenesisproteinglycogenneutral lipidssterolslocusta migratoriaschistocerca gregaria |
| spellingShingle | Václav NĚMEC Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis European Journal of Entomology embryogenesis protein glycogen neutral lipids sterols locusta migratoria schistocerca gregaria |
| title | Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis |
| title_full | Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis |
| title_fullStr | Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis |
| title_full_unstemmed | Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis |
| title_short | Quantitative changes in protein, glycogen and fat content in the eggs of the locusts, Locusta migratoria migratorioides and Schistocerca gregaria (Orthoptera), during embryogenesis |
| title_sort | quantitative changes in protein glycogen and fat content in the eggs of the locusts locusta migratoria migratorioides and schistocerca gregaria orthoptera during embryogenesis |
| topic | embryogenesis protein glycogen neutral lipids sterols locusta migratoria schistocerca gregaria |
| url | https://www.eje.cz/artkey/eje-200204-0023_Quantitative_changes_in_protein_glycogen_and_fat_content_in_the_eggs_of_the_locusts_Locusta_migratoria_migrat.php |
| work_keys_str_mv | AT vaclavnemec quantitativechangesinproteinglycogenandfatcontentintheeggsofthelocustslocustamigratoriamigratorioidesandschistocercagregariaorthopteraduringembryogenesis |