About: A role for ecdysteroids in the phase polymorphism of the desert locust

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About: A role for ecdysteroids in the phase polymorphism of the desert locust Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Locusts show density-dependent continuous phase polymorphism; they appear in two forms or phases, gregarious and solitary, and there is a continuous range of intermediates between the extreme phases. Although earlier studies showed that there are no major phase-dependent differences in the titres of ecdysteroid in the haemolymph of desert locusts, Schistocerca gregaria , recent studies showed some minor differences in the timing of the main peak of ecdysteroids. In crowded penultimate- and last-instar hoppers, peak titres were lower but longer-lasting, whereas in isolated hoppers they were higher but of shorter duration. The major component of the haemolymph peak of ecdysteroid was 20-hydroxyecdysone in both isolated and crowded hoppers, but differences were found in the relative amounts of two minor components (makisterone A-like compound and highly polar products). In S. gregaria adults, the regression of the prothoracic glands was irregular and subject to high individual variations, but phase-depen Locusts show density-dependent continuous phase polymorphism; they appear in two forms or phases, gregarious and solitary, and there is a continuous range of intermediates between the extreme phases. Although earlier studies showed that there are no major phase-dependent differences in the titres of ecdysteroid in the haemolymph of desert locusts, Schistocerca gregaria , recent studies showed some minor differences in the timing of the main peak of ecdysteroids. In crowded penultimate- and last-instar hoppers, peak titres were lower but longer-lasting, whereas in isolated hoppers they were higher but of shorter duration. The major component of the haemolymph peak of ecdysteroid was 20-hydroxyecdysone in both isolated and crowded hoppers, but differences were found in the relative amounts of two minor components (makisterone A-like compound and highly polar products). In S. gregaria adults, the regression of the prothoracic glands was irregular and subject to high individual variations, but phase-depen (en) Role ekdysosteroidů v polymorfismu fází u sarančat (cs)
Title	Role ekdysosteroidů v polymorfismu fází u sarančat (cs) A role for ecdysteroids in the phase polymorphism of the desert locust A role for ecdysteroids in the phase polymorphism of the desert locust (en)
skos:prefLabel	Role ekdysosteroidů v polymorfismu fází u sarančat (cs) A role for ecdysteroids in the phase polymorphism of the desert locust A role for ecdysteroids in the phase polymorphism of the desert locust (en)
skos:notation	RIV/60076658:12310/03:00008618!RIV08-MSM-12310___
http://linked.open.../vavai/riv/strany	19-24
http://linked.open...avai/riv/aktivita	V Z
http://linked.open...avai/riv/aktivity	V, Z(AV0Z5007907)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Sehnal, František
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Jihočeská univerzita v Českých Budějovicích / Přírodovědecká fakulta
http://linked.open...dnocenehoVysledku	597121
http://linked.open...ai/riv/idVysledku	RIV/60076658:12310/03:00008618
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	SCHISTOCERCA-GREGARIA FORSKAL; AGGREGATION PHEROMONE SYSTEM; OVARIAN DEVELOPMENT; HEMOLYMPH ECDYSTEROIDS; PROTHORACIC GLANDS; JUVENILE-HORMONE; MIGRATORIA; ECDYSONE; TITERS; 20-HYDROXYECDYSONE (en)
http://linked.open.../riv/klicoveSlovo	20-HYDROXYECDYSONE AGGREGATION PHEROMONE SYSTEM ECDYSONE HEMOLYMPH ECDYSTEROIDS JUVENILE-HORMONE MIGRATORIA OVARIAN DEVELOPMENT PROTHORACIC GLANDS SCHISTOCERCA-GREGARIA FORSKAL TITERS
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[D3D5D0DFABBF]
http://linked.open...i/riv/nazevZdroje	Physiological Entomology
http://linked.open...in/vavai/riv/obor	EB
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2003
http://linked.open...v/svazekPeriodika	28
http://linked.open...iv/tvurceVysledku	Sehnal, František Tawfik, Amer I.
http://linked.open...n/vavai/riv/zamer	The use of insects for quality assessment and possible management of the ecosystems in Central Europe
issn	0307-6962
number of pages	6 (xsd:int)
http://localhost/t...ganizacniJednotka	12310

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