NEUROHORMONAL INDUCTION OF PHEROMONE BIOSYNTHESIS BY HELIOTHIS ZEA (BODDIE) DURING THE PHOTOPHASE

1989 ◽  
Vol 121 (1) ◽  
pp. 43-46 ◽  
Author(s):  
P.E.A. Teal ◽  
J.H. Tumlinson
Keyword(s):  
Heliothis Zea ◽  
Pheromone Biosynthesis ◽  
Subesophageal Ganglion ◽  
Pheromone Production ◽  
The Brain ◽  
Ratio Of Components

AbstractFemales of Heliothis zea (Boddie) were stimulated to produce pheromone by injection of brain – subesophageal ganglion homogenates. Females injected with this homogenate during the photophase produced the same amount of pheromone and same ratio of components as neck-ligated females injected during the peak of pheromone production. Decapitated females and isolated abdomens also produced pheromone when injected with the brain – subesophageal ganglion homogenate during the photophase. These data show that the neurohormone which stimulates pheromone production is not degraded by enzymes during the photophase and that pheromone is not metabolized at a greater rate during periods when the insect is not producing pheromones.

INDUCTION OF PHEROMONE PRODUCTION IN FEMALES OF HELIOTHIS VIRESCENS (F.) AND H. SUBFLEXA (GN.) (LEPIDOPTERA: NOCTUIDAE) DURING THE PHOTOPHASE

1993 ◽  
Vol 125 (2) ◽  
pp. 355-366 ◽  
Author(s):  
P.E.A. Teal ◽  
A. Oostendorp ◽  
J.H. Tumlinson
Keyword(s):  
Heliothis Virescens ◽  
Optimal Dose ◽  
Pheromone Biosynthesis ◽  
Subesophageal Ganglion ◽  
Pheromone Production ◽  
Synthetic Pheromone ◽  
Lepidoptera Noctuidae ◽  
The Brain ◽  
Stimulation Of

AbstractProduction of sex pheromone was induced during the photophase, a time during which pheromone is not normally produced, in females of Heliothis virescens (F.) and H. subflexa (Gn.) by injection of homogenates and partially purified extracts of the brain – subesophageal ganglion complex of conspecific females or H. zea (Boddie) females or synthetic pheromone biosynthesis activating neuropeptide (PBAN). The amount of (Z)-11-hexadecenal, the major component of the pheromone of both species, increased during the first 60 min after injection of PBAN then leveled off and declined in H. virescens. In H. subflexa, the amount of this aldehyde increased during the first 120 min and declined after 240 min. Studies indicated that extracts of the brain – subesophageal ganglion complex that did not contain neurally produced biogenic amines induced production of as much pheromone as did homogenates containing these compounds. Dose-response studies indicated that the optimal dose of synthetic PBAN for induction of pheromone during a 60-min incubation was 5.0 pmol. In vivo maintenance of pheromone production required continuous stimulation of the pheromone gland.

scholarly journals The Identification of Boll Weevil, Anthonomus grandis grandis (Coleoptera: Curculionidae), Genes Involved in Pheromone Production and Pheromone Biosynthesis

Insects ◽  
2021 ◽  
Vol 12 (10) ◽  
pp. 893
Author(s):  
Lindsey C. Perkin ◽  
Jose L. Perez ◽  
Charles P.-C. Suh
Keyword(s):  
Control Strategies ◽  
Boll Weevil ◽  
Pheromone Biosynthesis ◽  
Anthonomus Grandis ◽  
Pheromone Production ◽  
Rna Seq ◽  
Level Control ◽  
Production Development ◽  
Gene Level ◽  
One Step

Eradication programs for the boll weevil, Anthonomus grandis grandis Boheman (Coleoptera: Curculionidae), rely almost exclusively on pheromone traps to indicate the need for insecticide applications. However, the effectiveness of traps in detecting weevil populations is reduced during certain times of the year, particularly when cotton is actively fruiting. Consequently, this could result in fields becoming heavily infested with weevils. It is widely speculated that the lack of weevil captures in traps during this period is largely due to the overwhelming amount of pheromone released by weevils in the field, which outcompete the pheromone released from traps. Thus, this work sought to identify genes involved in pheromone production so that new control methods that target these genes can be explored. We conducted an RNA-seq experiment that revealed 2479 differentially expressed genes between pheromone-producing and non-pheromone-producing boll weevils. Of those genes, 1234 were up-regulated, and 1515 were down-regulated, and most had gene annotations associated with pheromone production, development, or immunity. This work advances our understanding of boll weevil pheromone production and brings us one step closer to developing gene-level control strategies for this cotton pest.

Characteristics of a neurohormone that controls sex pheromone production in Heliothis zea

1987 ◽  
Vol 33 (11) ◽  
pp. 809-814 ◽  
Author(s):  
A.K. Raina ◽  
H. Jaffe ◽  
J.A. Klun ◽  
R.L. Ridgway ◽  
D.K. Hayes
Keyword(s):  
Sex Pheromone ◽  
Heliothis Zea ◽  
Pheromone Production ◽  
Sex Pheromone Production

scholarly journals Transcriptome analysis identifies candidate genes in the biosynthetic pathway of sex pheromones from a zygaenid moth, Achelura yunnanensis (Lepidoptera: Zygaenidae)

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12641
Author(s):  
Shu-Mei Nuo ◽  
An-Jin Yang ◽  
Gen-Ceng Li ◽  
Hai-Yan Xiao ◽  
Nai-Yong Liu
Keyword(s):  
Sex Pheromones ◽  
Sex Expression ◽  
Fatty Acyl ◽  
Pheromone Biosynthesis ◽  
Pheromone Production ◽  
Sequencing Data ◽  
Related Information ◽  
Genes Encoding ◽  
Moth Species ◽  
First Time

In most moth species, sex pheromones responsible for mating and communication of both sexes are primarily produced by the pheromone glands (PGs) of female moths. Although the PG transcriptomes and pheromone production related genes from 24 moth species have been characterized, studies on the related information remain unknown in the Zygaenidae family. Here, we sequenced the PG transcriptome of a zygaenid moth, Achelura yunnanensis. Such the sequencing resulted in the yields of 47,632,610 clean reads that were assembled into 54,297 unigenes, coupled with RNA sequencing data from 12 other tissues. Based on the transcriptome, a total of 191 genes encoding pheromone biosynthesis and degradation enzymes were identified, 161 of which were predicted to have full-length sequences. A comparative analysis among 24 moth species of nine families indicated that the numbers of the genes were variable, ranging from 14 in two Grapholita species to 191 in A. yunnanensis. Phylogenetic analysis in parallel with the expression data highlighted some key genes, including three △9 and four △11 desaturases, four fatty acyl-CoA reductases (FARs) clustering in the pgFAR clade, and three significantly antennae-enriched aldehyde oxidases. An extensive tissue- and sex- expression profile revealed a broad distribution of the genes, in which 128 relatives were detected in the PGs and 127 in the antennae. This study reports, for the first time, the gene repertoires associated with the pheromone production in Zygaenidae, and provides a valuable resource for exploring putative roles of the PG-enriched genes in A. yunnanensis.

scholarly journals Octopamine-like immunoreactivity in the brain and subesophageal ganglion of the honeybee

1994 ◽  
Vol 348 (4) ◽  
pp. 583-595 ◽  
Author(s):  
Sabine Kreissl ◽  
Stefan Eichmüller ◽  
Gerd Bicker ◽  
Jürgen Rapus ◽  
Manfred Eckert
Keyword(s):  
Subesophageal Ganglion ◽  
The Brain

scholarly journals Octopamine-immunoreactive neurons in the brain and subesophageal ganglion of the hawkmothManduca sexta

2005 ◽  
Vol 488 (3) ◽  
pp. 255-268 ◽  
Author(s):  
Andrew M. Dacks ◽  
Thomas A. Christensen ◽  
Hans-J. Agricola ◽  
Leo Wollweber ◽  
John G. Hildebrand
Keyword(s):  
Subesophageal Ganglion ◽  
The Brain
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