Effects of Precocene and Low Protein Diet on Reproductive Behavior in &lt;I&gt;Drosophila melanogaster&lt;/I&gt; (Diptera: Drosophilidae)

Ringo, John; Talyn, Becky; Brannan, Michael

doi:10.1603/0013-8746(2005)098[0601:eopalp]2.0.co;2

Cited by 20 publications

(19 citation statements)

References 30 publications

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“…Precocenes-I and -II (7 methoxy-2,2-dimethylchromene and 6,7-dimethoxy-2,2-dimethylchromene, respectively) are chromene derivatives of plant origin (Bowers, 1976;Soderlund et al, 1980;Haunerland and Bowers, 1985) that have been shown to have multiple effects on metamorphosis during the pre-adult stages of different non-social insect species (Nemec et al, 1978;Unnithan and Nair, 1979;Kozhanova and Nemec, 1991;Khan and Kumar, 2000;Khan and Kumar, 2005;Gaur and Kumar, 2009) and on reproduction in adults of several insect orders where they prevent normal vitellogenic development of the oocytes, leading to sterility (Pratt and Bowers, 1977;Deb and Chakravorty, 1982;Bradley and Haynes, 1991;Kozhanova and Nemec, 1991;Kumar and Khan, 2004;Ringo et al, 2005;Amiri et al, 2010). In these non-social insect species, precocenes also affect several aspects of behavior such as aggression (Chen et al, 2005a), mating behavior (Walker, 1978), flight behavior (Rankin, 1980), maternal defensive behavior (Kight, 1998) and sexual behavior (Pathak and Bhandari, 2002;Ringo et al, 2005). In most cases the physiological, but not all the behavioral effects, were reversible by JH replacement therapy (Walker, 1978;Masner et al, 1979;Unnithan and Nair, 1979;Rankin, 1980;Li et al, 1993;Kight, 1998;Pathak and Bhandari, 2002;Chen et al, 2005a).…”

Section: Introductionmentioning

confidence: 99%

Precocene-I inhibits juvenile hormone biosynthesis, ovarian activation, aggression and alters sterility signal production in bumble bee (Bombus terrestris) workers

Amsalem

Teal

Grozinger

et al. 2014

Journal of Experimental Biology

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Juvenile hormone (JH) is an important regulator of development and physiology in insects. While in many insect species, including bumble bees, JH functions as gonadotropin in adults, in some highly eusocial insects its role has shifted to regulate social behavior including division of labor, dominance and aggression. Studying JH functions across social insect species is important for understanding the evolution of sociality; however, these studies have been limited because of the inability to reduce JH levels without surgically removing its glandular source, the corpora allata. Precocene is known to inhibit JH biosynthesis in several non-social insects, but has been poorly studied in social insects. Here, we tested whether precocene-I can effectively reduce JH levels in Bombus terrestris workers, and examined its effects on their physiology and behavior. Precocene-I treatment of three-worker groups decreased JH titer and ovarian activation, irrespective of the bees' dominance rank within the group, and was remedied by JH replacement therapy. Precocene-I also decreased aggressiveness and increased ester-sterility signal production; these changes were rank-dependent, and affected mainly the most reproductive and the least aggressive workers, respectively, and could not be remedied by JH replacement therapy. These results clearly confirm the role of JH as a gonadotropin and mediator of aggression in B. terrestris, and indicate that JH effects are associated with worker dominance rank. The ability to chemically reduce JH titer provides us with a non-intrusive method to probe the evolutionary changes associated with JH and the hormonal mechanisms that are associated with reproduction and behavior in social insects.

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Section: Introductionmentioning

confidence: 99%

Precocene-I inhibits juvenile hormone biosynthesis, ovarian activation, aggression and alters sterility signal production in bumble bee (Bombus terrestris) workers

Amsalem

Teal

Grozinger

et al. 2014

Journal of Experimental Biology

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“…This result was, to a great extent, in conformity with the reported results of inhibited oviposition efficiency of some insects by various IGRs, such as S. littoralis by flufenoxuron (Bakr et al, 2010) and novaluron (Ghoneim et al, 2014); S. gregaria by flufenoxuron and lufenuron (Soltani-Mazouni and Soltani, 1994) or tebufenozide (Al-Dali et al, 2008); the Indian meal moth Plodia interpunctella by RH-5849 (Smagghe and Degheele, 1994); the bean beetle Callosobruchas maculates by cyromazine (Al-Mekhlafi et al, 2011); P. gossypiella by novaluron (Hassan et al, 2017) and P. unionalis by methoxyfenozide . Exposure of D. melanogaster females to 0.14 μmol of PI resulted in remarkably regressed oviposition rate (Ringo et al, 2005). Larval treatment of E. integriceps with PI led to decreasing egg laying rate (Amiri et.…”

Section: Reduction Of Oviposition Efficiencymentioning

confidence: 99%

Impairment of Development and Reproductivity of the Egyptian cotton leafworm Spodoptera littoralis Boisduval (Noctuidae: Lepidoptera) by Cycloheximide.

Basiouny

Ghoneim

2018

Egyptian Academic Journal of Biological Sciences. A, Entomology

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The Egyptian cotton leafworm, Spodoptera littoralis, is destructive pest of cotton and various crops in Egypt and some parts of the world. The present study was carried out aiming to assess the disruptive effects of cycloheximide on survival, growth, development, metamorphosis and reproductive potential of this pest. Four doses: 180, 120, 60 and 30 µg/larva had been topically applied (once) onto the newly moulted last instar larvae. cycloheximide exhibited toxic effect on larvae, pupae and adults. Unexpectedly, no mortality was observed at the highest dose. LD 50 was estimated at 0.013 µg/larva. The maximal weights of the treated larvae increased and the larval growth was remarkably enhanced. The larval and pupal durations were shortened. Some larvae appeared as 'giant larvae', only at the lower two doses. They enlarged in size and appeared heavier than other treated and control larvae. They survived 2-times longer period than of the control larvae and perished without pupation. Topical treatment of larvae only with the lower two doses induced a state of suspended development, 'permanent prepupae' which failed to pupate. Cycloheximide exerted an inhibitory action on the pupation rate after treatment only with the lower three doses. Some deformed pupae were produced. The adult emergence was considerably blocked at lower three doses. The oviposition was completely prevented, at the higher two doses, but partially inhibited at the lower two doses. No fecundity could be determined at the higher two doses because no oviposition was carried out. At the lower two doses, fecundity was dramatically reduced. All eggs failed to hatch indicating complete sterility of S. littoralis.

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“…However, very few studies have examined the effects of anti-JH compounds on this important reproductive parameter. Exposure of D. melanogaster females to 0.14 μmol of PI resulted in remarkably regressed oviposition rate (Ringo et al, 2005). Larval treatment of the Sunn pest Eurygaster integriceps with PI led to decreasing egg laying rate (Amiri et.…”

Section: Inhibited Oviposition Efficiency Of Adult Femalesmentioning

confidence: 99%

“…On reproduction in adults of several insect orders, precocenes have been shown to prevent normal vitellogenic development of the oocytes or disturb the embryonic development leading to sterility (Staal, 1986;Kumar and Khan, 2004;Ringo et al, 2005;Amiri et al, 2010). The present study was carried out aiming to assess the effects of Precocene I (PI) on the most important parameters of adult performance and reproductive potential of S. littoralis.…”

Section: Introductionmentioning

confidence: 99%

Disruptive Impact of Precocene I (juvenile hormone-antagonist) on the Adult Performance and Reproductive Potential of the Egyptian Cotton Leafworm Spodoptera littoralis Boisduval (Lepidoptera: Noctuidae)

Ghoneim

Bosly

2017

Egyptian Academic Journal of Biological Sciences. A, Entomology

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The cotton leafworm, Spodoptera littoralis is destructive pest of cotton and various crops all over the year. The present study was carried out aiming to assess the effects of Precocene I (PI) on the most important parameters of adult performance and reproductive potential of this pest. Five sublethal doses: 150, 120, 90, 30 and 15 µg/larva had been topically applied (once) onto 1-day old larvae of 5 th (penultimate) instar and 6 th (last) instar. The adult emergence was slightly, or drastically, blocked, depending on the dose level and larval instar under treatment. PI exhibited a slightly extended toxic effect on the adult females only with the higher two doses. Some adult deformities were produced after treatment of 6 th instar larvae with PI. With regard to the adult longevity, the major effect of PI was the promotion of adult females to live longer lifetime. Both preoviposition and oviposition periods had been slightly, or considerably, shortened. After topical application of PI onto 5 th instar larvae, the oviposition rate was drastically regressed only at the lower two doses. After treatment of 6 th instar larvae with PI, the oviposition rate was drastically regressed in a dose-dependent course. Both fecundity and fertility were dramatically reduced. Complete sterility was recorded after treatment of 5 th instar larvae with PI but complete sterility had been recorded after treatment of 6 th instar larvae only with 150 and 30 µg/larva. The incubation period was remarkably prolonged.

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Effects of Precocene and Low Protein Diet on Reproductive Behavior in <I>Drosophila melanogaster</I> (Diptera: Drosophilidae)

Cited by 20 publications

References 30 publications

Precocene-I inhibits juvenile hormone biosynthesis, ovarian activation, aggression and alters sterility signal production in bumble bee (Bombus terrestris) workers

Precocene-I inhibits juvenile hormone biosynthesis, ovarian activation, aggression and alters sterility signal production in bumble bee (Bombus terrestris) workers

Impairment of Development and Reproductivity of the Egyptian cotton leafworm Spodoptera littoralis Boisduval (Noctuidae: Lepidoptera) by Cycloheximide.

Disruptive Impact of Precocene I (juvenile hormone-antagonist) on the Adult Performance and Reproductive Potential of the Egyptian Cotton Leafworm Spodoptera littoralis Boisduval (Lepidoptera: Noctuidae)

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