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Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins
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| Zeitschriftentitel: | Archives of Insect Biochemistry and Physiology |
|---|---|
| Personen und Körperschaften: | , |
| In: | Archives of Insect Biochemistry and Physiology, 30, 1995, 4, S. 383-400 |
| Format: | E-Article |
| Sprache: | Englisch |
| veröffentlicht: |
Wiley
|
| Schlagwörter: |
| author_facet |
Braun, R. P. Wyatt, G. R. Braun, R. P. Wyatt, G. R. |
|---|---|
| author |
Braun, R. P. Wyatt, G. R. |
| spellingShingle |
Braun, R. P. Wyatt, G. R. Archives of Insect Biochemistry and Physiology Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins Insect Science General Medicine Biochemistry Physiology |
| author_sort |
braun, r. p. |
| spelling |
Braun, R. P. Wyatt, G. R. 0739-4462 1520-6327 Wiley Insect Science General Medicine Biochemistry Physiology http://dx.doi.org/10.1002/arch.940300407 <jats:title>Abstract</jats:title><jats:p>The participation of juvenile hormone (JH) in the regulation of growth and protein synthesis in the accessory reproductive gland of male <jats:italic>Locusta migratoria</jats:italic> has been investigated. After elimination of endogenous JH with ethoxyprecocene, the accessory gland failed to grow, but growth was restored by a single application of the JH analog, pyriproxyfen. Pyriproxyfen appeared to stimulate total protein synthesis by 3 h, with a significant effect by 12 h, in contrast to 24 h observed in fat body. The dose curve for stimulation of protein synthesis 12 h after applying pyriproxyfen gave an ED<jats:sub>50</jats:sub> of 0.1 μg; the dose curve for gland growth at 72 h was biphasic, with steps at about 0.01 μg and 10 μg, suggesting two phases in JH action. SDS‐PAGE analysis showed several components that were stimulated by pyriproxyfen, the effect being strongest in an 11 kDa band. A 5 kDa component was enhanced in the soluble and reduced in the particulate fraction after precocene treatment. The accessory gland contained JH esterase activity at levels about 100 times those in fat body or hemolymph, and was higher in precocene treated locusts. Binding activity for [<jats:sup>3</jats:sup>H]10<jats:styled-content>R</jats:styled-content>‐JH III was high in cytosolic and nuclear fractions, and was identified immunologically as due to the previously described hemolymph JH binding protein. The results indicate that the mode of action of JH in the accessory gland may differ from that in the fat body. The presence of intracellular JH binding protein suggests a direct action of JH within the gland, that may be modulated by JH esterase. © 1995 Wiley‐Liss, Inc.</jats:p> Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins Archives of Insect Biochemistry and Physiology |
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Wiley, 1995 |
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Archives of Insect Biochemistry and Physiology |
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| title |
Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_unstemmed |
Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_full |
Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_fullStr |
Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_full_unstemmed |
Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_short |
Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_sort |
growth of the male accessory gland in adult locusts: roles of juvenile hormone, jh esterase, and jh binding proteins |
| topic |
Insect Science General Medicine Biochemistry Physiology |
| url |
http://dx.doi.org/10.1002/arch.940300407 |
| publishDate |
1995 |
| physical |
383-400 |
| description |
<jats:title>Abstract</jats:title><jats:p>The participation of juvenile hormone (JH) in the regulation of growth and protein synthesis in the accessory reproductive gland of male <jats:italic>Locusta migratoria</jats:italic> has been investigated. After elimination of endogenous JH with ethoxyprecocene, the accessory gland failed to grow, but growth was restored by a single application of the JH analog, pyriproxyfen. Pyriproxyfen appeared to stimulate total protein synthesis by 3 h, with a significant effect by 12 h, in contrast to 24 h observed in fat body. The dose curve for stimulation of protein synthesis 12 h after applying pyriproxyfen gave an ED<jats:sub>50</jats:sub> of 0.1 μg; the dose curve for gland growth at 72 h was biphasic, with steps at about 0.01 μg and 10 μg, suggesting two phases in JH action. SDS‐PAGE analysis showed several components that were stimulated by pyriproxyfen, the effect being strongest in an 11 kDa band. A 5 kDa component was enhanced in the soluble and reduced in the particulate fraction after precocene treatment. The accessory gland contained JH esterase activity at levels about 100 times those in fat body or hemolymph, and was higher in precocene treated locusts. Binding activity for [<jats:sup>3</jats:sup>H]10<jats:styled-content>R</jats:styled-content>‐JH III was high in cytosolic and nuclear fractions, and was identified immunologically as due to the previously described hemolymph JH binding protein. The results indicate that the mode of action of JH in the accessory gland may differ from that in the fat body. The presence of intracellular JH binding protein suggests a direct action of JH within the gland, that may be modulated by JH esterase. © 1995 Wiley‐Liss, Inc.</jats:p> |
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| author | Braun, R. P., Wyatt, G. R. |
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| description | <jats:title>Abstract</jats:title><jats:p>The participation of juvenile hormone (JH) in the regulation of growth and protein synthesis in the accessory reproductive gland of male <jats:italic>Locusta migratoria</jats:italic> has been investigated. After elimination of endogenous JH with ethoxyprecocene, the accessory gland failed to grow, but growth was restored by a single application of the JH analog, pyriproxyfen. Pyriproxyfen appeared to stimulate total protein synthesis by 3 h, with a significant effect by 12 h, in contrast to 24 h observed in fat body. The dose curve for stimulation of protein synthesis 12 h after applying pyriproxyfen gave an ED<jats:sub>50</jats:sub> of 0.1 μg; the dose curve for gland growth at 72 h was biphasic, with steps at about 0.01 μg and 10 μg, suggesting two phases in JH action. SDS‐PAGE analysis showed several components that were stimulated by pyriproxyfen, the effect being strongest in an 11 kDa band. A 5 kDa component was enhanced in the soluble and reduced in the particulate fraction after precocene treatment. The accessory gland contained JH esterase activity at levels about 100 times those in fat body or hemolymph, and was higher in precocene treated locusts. Binding activity for [<jats:sup>3</jats:sup>H]10<jats:styled-content>R</jats:styled-content>‐JH III was high in cytosolic and nuclear fractions, and was identified immunologically as due to the previously described hemolymph JH binding protein. The results indicate that the mode of action of JH in the accessory gland may differ from that in the fat body. The presence of intracellular JH binding protein suggests a direct action of JH within the gland, that may be modulated by JH esterase. © 1995 Wiley‐Liss, Inc.</jats:p> |
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| imprint | Wiley, 1995 |
| imprint_str_mv | Wiley, 1995 |
| institution | DE-Gla1, DE-Zi4, DE-15, DE-Pl11, DE-Rs1, DE-105, DE-14, DE-Ch1, DE-L229, DE-D275, DE-Bn3, DE-Brt1, DE-D161 |
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| physical | 383-400 |
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| spelling | Braun, R. P. Wyatt, G. R. 0739-4462 1520-6327 Wiley Insect Science General Medicine Biochemistry Physiology http://dx.doi.org/10.1002/arch.940300407 <jats:title>Abstract</jats:title><jats:p>The participation of juvenile hormone (JH) in the regulation of growth and protein synthesis in the accessory reproductive gland of male <jats:italic>Locusta migratoria</jats:italic> has been investigated. After elimination of endogenous JH with ethoxyprecocene, the accessory gland failed to grow, but growth was restored by a single application of the JH analog, pyriproxyfen. Pyriproxyfen appeared to stimulate total protein synthesis by 3 h, with a significant effect by 12 h, in contrast to 24 h observed in fat body. The dose curve for stimulation of protein synthesis 12 h after applying pyriproxyfen gave an ED<jats:sub>50</jats:sub> of 0.1 μg; the dose curve for gland growth at 72 h was biphasic, with steps at about 0.01 μg and 10 μg, suggesting two phases in JH action. SDS‐PAGE analysis showed several components that were stimulated by pyriproxyfen, the effect being strongest in an 11 kDa band. A 5 kDa component was enhanced in the soluble and reduced in the particulate fraction after precocene treatment. The accessory gland contained JH esterase activity at levels about 100 times those in fat body or hemolymph, and was higher in precocene treated locusts. Binding activity for [<jats:sup>3</jats:sup>H]10<jats:styled-content>R</jats:styled-content>‐JH III was high in cytosolic and nuclear fractions, and was identified immunologically as due to the previously described hemolymph JH binding protein. The results indicate that the mode of action of JH in the accessory gland may differ from that in the fat body. The presence of intracellular JH binding protein suggests a direct action of JH within the gland, that may be modulated by JH esterase. © 1995 Wiley‐Liss, Inc.</jats:p> Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins Archives of Insect Biochemistry and Physiology |
| spellingShingle | Braun, R. P., Wyatt, G. R., Archives of Insect Biochemistry and Physiology, Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins, Insect Science, General Medicine, Biochemistry, Physiology |
| title | Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_full | Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_fullStr | Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_full_unstemmed | Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_short | Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| title_sort | growth of the male accessory gland in adult locusts: roles of juvenile hormone, jh esterase, and jh binding proteins |
| title_unstemmed | Growth of the male accessory gland in adult locusts: Roles of juvenile hormone, JH esterase, and JH binding proteins |
| topic | Insect Science, General Medicine, Biochemistry, Physiology |
| url | http://dx.doi.org/10.1002/arch.940300407 |