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פותח על ידי קלירמאש פתרונות בע"מ -
Ecdysone and juvenile hormone activity in the larvae of the cockroach Periplaneta americana
Year:
1978
Source of publication :
Insect Biochemistry
Authors :
שעיה, אלי
;
.
Volume :
8
Co-Authors:
Shaaya, E., Laboratory of Insect Physiology, The Hebrew University, Jerusalem, Israel
Facilitators :
From page:
193
To page:
195
(
Total pages:
3
)
Abstract:
Changes in ecdysone and juvenile hormone titre during the 6th larval stage of the cockroach Periplaneta americana were studied. Juvenile hormone is secreted mainly in the second quarter of the instar, while the ecdysone titre increases gradually in the third quarter and reaches a maximum shortly before ecdysis. Following this period the titre of ecdysone drops rapidly and it is very low at the time of ecdysis. The increase in ecdysone concentration is correlated to the synthesis of the new cuticle and when the titre of juvenile hormone is at a low level. The maximal concentration of ecdysone and juvenile hormone were similar, about 30-35 ng per gram insect. In the larval stage, juvenile hormone exerts its effect at the beginning of the instar while ecdysone acts later. © 1978.
Note:
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More details
DOI :
10.1016/0020-1790(78)90073-2
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
30374
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:54
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Scientific Publication
Ecdysone and juvenile hormone activity in the larvae of the cockroach Periplaneta americana
8
Shaaya, E., Laboratory of Insect Physiology, The Hebrew University, Jerusalem, Israel
Ecdysone and juvenile hormone activity in the larvae of the cockroach Periplaneta americana
Changes in ecdysone and juvenile hormone titre during the 6th larval stage of the cockroach Periplaneta americana were studied. Juvenile hormone is secreted mainly in the second quarter of the instar, while the ecdysone titre increases gradually in the third quarter and reaches a maximum shortly before ecdysis. Following this period the titre of ecdysone drops rapidly and it is very low at the time of ecdysis. The increase in ecdysone concentration is correlated to the synthesis of the new cuticle and when the titre of juvenile hormone is at a low level. The maximal concentration of ecdysone and juvenile hormone were similar, about 30-35 ng per gram insect. In the larval stage, juvenile hormone exerts its effect at the beginning of the instar while ecdysone acts later. © 1978.
Scientific Publication
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