Sex pheromone components of the rice leaffolder, Cnaphalocrocis medinalis (Lepidoptera: Crambidae), in Indonesia

Kawazu, Kei; Adati, Tarô; Yosiyasu, Yutaka; Sumiartha, Ketut; Susila, Wayan R.; Sudiarta, I Putu; Purwanto, Hari; Tatsuki, Sadahiro

doi:10.1016/j.aspen.2009.01.001

Cited by 14 publications

(4 citation statements)

References 8 publications

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“…Apart from rice volatiles, acetate pheromones from sympatric insect species could also be substrates for these antennae specific CXEs. For example, the sex pheromone blend of the rice leaffolder, Cnaphalocrocis medinalis (Lepidoptera: Pyralidae), consists of (Z)-11-hexadecenyl acetate and (Z)-13-octadecenyl acetate ( Kawazu et al. 2009 ) and could possibly be degraded by antennal CXEs of C. suppressalis .…”

Section: Resultsmentioning

confidence: 99%

Identification of Putative Carboxylesterase and GlutathioneS-transferase Genes from the Antennae of theChilo suppressalis(Lepidoptera: Pyralidae)

et al. 2015

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In insects, rapid degradation of odorants in antennae is extremely important for the sensitivity of olfactory receptor neurons. Odorant degradation in insect antennae is mediated by multiple enzymes, especially the carboxylesterases (CXEs) and glutathione S-transferases (GSTs). The Asiatic rice borer, Chilo suppressalis, is an economically important lepidopteran pest which causes great economic damage to cultivated rice crops in many Asian countries. In this study, we identified 19 putative CXE and 16 GST genes by analyzing previously constructed antennal transcriptomes of C. suppressalis. BLASTX best hit results showed that these genes are most homologous to their respective orthologs in other lepidopteran species. Phylogenetic analyses revealed that these CXE and GST genes were clustered into various clades. Reverse-transcription quantitative polymerase chain reaction assays showed that three CXE genes (CsupCXE8, CsupCXE13, and CsupCXE18) are antennae-enriched. These genes are candidates for involvement in odorant degradation. Unexpectedly, none of the GST genes were found to be antennae-specific. Our results pave the way for future researches of the odorant degradation mechanism of C. suppressalis at the molecular level.

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Section: Resultsmentioning

confidence: 99%

Identification of Putative Carboxylesterase and GlutathioneS-transferase Genes from the Antennae of theChilo suppressalis(Lepidoptera: Pyralidae)

et al. 2015

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“…Cnaphalocrocis pilosa (= Marasmia latimarginalis ) (rice leaffolder) is a seasonal migratory, agricultural pest throughout Asia (Kawazu et al , 2001). In Japan, it is found as far north as the Kanto region (34°54′N–37°08′N, 138°23′E–140°53′E) and farther west and south in the country.…”

Section: Biotic Interactions Of M Sinensismentioning

confidence: 99%

The ecology and agronomy of Miscanthus sinensis, a species important to bioenergy crop development, in its native range in Japan: a review

et al. 2009

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Among several candidate perennial taxa, Miscanthus Â giganteus has been evaluated and promoted as a promising bioenergy crop. Owing to several limitations, however, of the sterile hybrid, both at the taxon and agronomic production levels, other options need to be explored to not only improve M. Â giganteus, which was originally collected in Japan, but to also consider the development of other members of its genus, including Miscanthus sinensis, as bioenergy crops. Indeed, there is likely much to be learned and applied to Miscanthus as a bioenergy crop from the long history of intensive interaction between humans and M. sinensis in Japan, which in some regions of the country spans several thousand years. Combined with its high amount of genetic variation, stress tolerance, biotic interactions with fauna, and function as a keystone species in diverse grasslands and other ecosystems within its native range, the unique and extensive management of M. sinensis in Japan as a forage grass and building material provides agronomists, agroecologists, and plant breeders with the capability of better understanding this species in terms of potential contribution to bioenergy crop development. Moreover, the studies described in this review may serve as a platform for future research of Miscanthus as a bioenergy crop in other parts of the world.

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“…Control measures target the elimination of adults to reduce crop damage and prevent their spread. However, despite extensive research on the sex pheromones and related techniques of behavioral manipulation of the rice leaf folder (Ganeswara Rao et al, 1993; Ganeswara Rao et al, 1995; Kawazu et al, 2000, 2002, 2005, 2009; Khan et al, 1989; Ramachandran et al, 1990), little is known of the physiology of the antenna1 sensory apparatus of this species. Insect antennae, which carry sensory sensilla, play an important role in the detection of various stimuli involved in finding suitable habitat and locating mates (Chapman, 1998; Godfray, 1994).…”

Section: Introductionmentioning

confidence: 99%

Ultrastructural observations on antennal sensilla of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae)

Sun

Wang

Zhang

2011

Microscopy Res & Technique

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The morphology and ultrastructure of the antennal sensilla of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae) was studied by scanning and transmission electron microscopic techniques. Eight morphological types of sensillum were recorded in both sexes: sensilla trichodea (S. trichodea), sensilla basiconc (S. basiconc), sensilla coeloconica (S. coeloconica), sensilla styloconica (S. styloconica), sensilla squamous (S. squamous), sensilla auricillica (S. auricillica), Böhm bristles (B. bristles), and sensilla cavity (S. cavity). S. trichodea were the most abundant sensilla and were distributed over the entire antennal surface. Four different types of S. trichodea and S. basiconc were observed. The number of S. basiconc and S. coeloconica of males were greater than those of females of C. medinalis. S. squamous formed on the dorsal part of the antenna, as a cluster in females and as in a line in males. Higher magnification revealed that S. basiconc had an olfactory function, while the character of longer length of these sensilla suggested that they also played a rolein sensing mechanical or other chemical stimuli. Transmission electron microscopy (TEM) of S. squamous revealed nonporous walls suggesting a non-olfactory function. S. coeloconica, S. styloconica, and S. cavity may be involved in the perception of humidity, temperature, heat, and CO₂. Because of their particular location, we infer that B. bristles may function in sensing the position and movements of the antennae, while the function of S. auricillica is as yet unknown. The results obtained provide direct morphological evidence that antennae possess structures that can play a role in finding mates and locating host plants.

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Sex pheromone components of the rice leaffolder, Cnaphalocrocis medinalis (Lepidoptera: Crambidae), in Indonesia

Cited by 14 publications

References 8 publications

Identification of Putative Carboxylesterase and GlutathioneS-transferase Genes from the Antennae of theChilo suppressalis(Lepidoptera: Pyralidae)

Identification of Putative Carboxylesterase and GlutathioneS-transferase Genes from the Antennae of theChilo suppressalis(Lepidoptera: Pyralidae)

The ecology and agronomy of Miscanthus sinensis, a species important to bioenergy crop development, in its native range in Japan: a review

Ultrastructural observations on antennal sensilla of Cnaphalocrocis medinalis (Lepidoptera: Pyralidae)

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