Rice striped stem borer, Chilo suppressalis Walker (Lepidoptera: Crambidae) is considered the major pest of rice in Iran. Because of the serious damage on rice in Northern Iran, the present study was conducted to investigate genetic diversity within populations of C. suppressalis , from Mazandaran using a template of cytochrome oxidase I gene, 750 bps, ( COI ). Later the haplotypes from Iran were compared with those found in other countries. According to the results of this study, there is very low genetic diversity (two haplotypes) among different populations of this pest in populations of Northern Iran. The genetic similarity and low levels of genetic diversity of these populations suggest that the pest colonization occurred relatively recently and there is high gene flow between these populations of the province. In addition, haplotypes of Mazandaran province are different with those found in other countries. The similarity of Iranian population (Simorgh) with one population from China indicated that China might be the origin of C. suppresalis .
{"title":"Genetic diversity of rice stem borer (Chilo suppressalis Walker) from Northern Iran and comparison with other countries","authors":"M. Shayanmehr, E. Yoosefi-Lafooraki","doi":"10.4081/JEAR.2016.5507","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5507","url":null,"abstract":"Rice striped stem borer, Chilo suppressalis Walker (Lepidoptera: Crambidae) is considered the major pest of rice in Iran. Because of the serious damage on rice in Northern Iran, the present study was conducted to investigate genetic diversity within populations of C. suppressalis , from Mazandaran using a template of cytochrome oxidase I gene, 750 bps, ( COI ). Later the haplotypes from Iran were compared with those found in other countries. According to the results of this study, there is very low genetic diversity (two haplotypes) among different populations of this pest in populations of Northern Iran. The genetic similarity and low levels of genetic diversity of these populations suggest that the pest colonization occurred relatively recently and there is high gene flow between these populations of the province. In addition, haplotypes of Mazandaran province are different with those found in other countries. The similarity of Iranian population (Simorgh) with one population from China indicated that China might be the origin of C. suppresalis .","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"360-365"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5507","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Samuel, D. Ramesh, V. Thenmozhi, J. Nagaraj, M. Muniaraj, N. Arunachalam
An entomological monitoring of Japanese encephalitis vectors from the Cuddalore district, Tamil Nadu was undertaken at biweekly intervals for 1 hr after dusk for five years to find out the abundance and JE virus activity longitudinally in three villages. A total of 95,644 vectors belonging to 31 species constituted predominantly by Culex vishnui subgroup and Culex gelidus 98.5%. JE virus was identified from Cx. tritaeniorhynchus (18), Cx. vishnui (1) and Cx. gelidus (6) giving infection rate of 0.482, 0.608 and 0.221 respectively. Abundance of Cx. tritaeniorhynchus and Cx. gelidus differed significantly by area, season and year (P<0.05) whereas Cx. vishuni differed significantly by season and year (P<0.05). Transmission was not observed throughout all the seasons and the infection rate was recorded maximum during Hot-Wet season 0.46 (confidence interval: 0.17-1.02). Culex tritaeniorhynchus dominated the catch and the Culex gelidus steadily increased in its abundance during this period compared to the earlier studies conducted from these areas which acts as a secondary vector along with the major vector, Cx. tritaeniorhynchus.
{"title":"Japanese Encephalitis vector abundance and infection frequency in Cuddalore District, Tamil Nadu, India: a five-year longitudinal study","authors":"P. Samuel, D. Ramesh, V. Thenmozhi, J. Nagaraj, M. Muniaraj, N. Arunachalam","doi":"10.4081/JEAR.2016.5630","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5630","url":null,"abstract":"An entomological monitoring of Japanese encephalitis vectors from the Cuddalore district, Tamil Nadu was undertaken at biweekly intervals for 1 hr after dusk for five years to find out the abundance and JE virus activity longitudinally in three villages. A total of 95,644 vectors belonging to 31 species constituted predominantly by Culex vishnui subgroup and Culex gelidus 98.5%. JE virus was identified from Cx. tritaeniorhynchus (18), Cx. vishnui (1) and Cx. gelidus (6) giving infection rate of 0.482, 0.608 and 0.221 respectively. Abundance of Cx. tritaeniorhynchus and Cx. gelidus differed significantly by area, season and year (P<0.05) whereas Cx. vishuni differed significantly by season and year (P<0.05). Transmission was not observed throughout all the seasons and the infection rate was recorded maximum during Hot-Wet season 0.46 (confidence interval: 0.17-1.02). Culex tritaeniorhynchus dominated the catch and the Culex gelidus steadily increased in its abundance during this period compared to the earlier studies conducted from these areas which acts as a secondary vector along with the major vector, Cx. tritaeniorhynchus.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"12 1","pages":"366-371"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5630","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The citrus leaf miner, Phyllocnistis citrella Stainton (Lep., Gracillariidae), is one of the most destructive pest of citrus and related Rutaceae and ornamental plants in Iran. Larvae damage leaves by creating serpentine feeding mines, which have been lead to reduce yield. Resistance and toxicity problems derived from synthetic insecticides have made it necessary to find more effective and healthier alternatives; therefore, bio-insecticides ( i.e ., Bacillus thuringiensis ) are becoming an important component in plant protection. The aim of the present study was to evaluate the efficiency of B. thuringiensis against P. citrella . Eight B. thuringiensis concentrations were used against P. citrella L3 on orange and mortality was recorded at 1, 4, 7 and 10 days after spraying. The results showed that B. thuringiensis significantly affected mortality of P. citrella . After 1, 4, 7 and 10 days of spraying 108 concentration of B. thuringiensis had significantly caused the highest mortality to the pest with 59.8, 68.4, 73.6 and 77.0%, respectively. Then the mortality percent decreased until it reached 6.5, 9.5, 39.3 and 46.7% at 101 concentration, respectively. In conclusion, the study indicated that B. thuringiensis is effective in controlling P. citrella under laboratory conditions.
{"title":"Bio-control efficiency of Bacillus thuringiensis (Berliner) against the citrus leaf miner, Phyllocnistis citrella Stainton (Lep., Gracillariidae) under laboratory conditions","authors":"K. Saeidi, E. Saeidi","doi":"10.4081/JEAR.2016.5403","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5403","url":null,"abstract":"The citrus leaf miner, Phyllocnistis citrella Stainton (Lep., Gracillariidae), is one of the most destructive pest of citrus and related Rutaceae and ornamental plants in Iran. Larvae damage leaves by creating serpentine feeding mines, which have been lead to reduce yield. Resistance and toxicity problems derived from synthetic insecticides have made it necessary to find more effective and healthier alternatives; therefore, bio-insecticides ( i.e ., Bacillus thuringiensis ) are becoming an important component in plant protection. The aim of the present study was to evaluate the efficiency of B. thuringiensis against P. citrella . Eight B. thuringiensis concentrations were used against P. citrella L3 on orange and mortality was recorded at 1, 4, 7 and 10 days after spraying. The results showed that B. thuringiensis significantly affected mortality of P. citrella . After 1, 4, 7 and 10 days of spraying 108 concentration of B. thuringiensis had significantly caused the highest mortality to the pest with 59.8, 68.4, 73.6 and 77.0%, respectively. Then the mortality percent decreased until it reached 6.5, 9.5, 39.3 and 46.7% at 101 concentration, respectively. In conclusion, the study indicated that B. thuringiensis is effective in controlling P. citrella under laboratory conditions.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"355-359"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5403","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The spinning apparatus and silk of Segestria senoculata were studied with the use of scanning electron microscopy and light microscopy, which confirmed the presence of four categories of spigots connected with four types of spinning glands ( i.e ., Glandulae ampullaceae major, Glandulae ampullaceae minor, Glandulae piriformes and Glandulae pseudaciniformes ). New data about the morphology of spinnerets and spigots were obtained for both the adults and nymphal stages of both sexes. For the first time the silken threads of retreats, signal threads and attachment discs of the members of Segestria were subjected to a detailed SEM study. The data resulting from studying the spinning apparatus of S. senoculata was compared to current knowledge of the silk producing systems of families belonging to the Dysderoidea superfamily. Silks that are emitted from spigots in the course of retreat construction are not (similarly to the other dysderoids) processed by the spider’s legs during the subsequent process of hardening. Apart from the major ampullate glands/spigots, segestriids also possess developed minor ampullate glands. Minor ampullate threads are used by S. senoculata spiders when making their signal threads.
{"title":"Spinnerets and silk-producing system of Segestria senoculata (Araneae, Araneomorphae, Segestriidae)","authors":"S. Karschová, J. Hajer","doi":"10.4081/JEAR.2016.5934","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5934","url":null,"abstract":"The spinning apparatus and silk of Segestria senoculata were studied with the use of scanning electron microscopy and light microscopy, which confirmed the presence of four categories of spigots connected with four types of spinning glands ( i.e ., Glandulae ampullaceae major, Glandulae ampullaceae minor, Glandulae piriformes and Glandulae pseudaciniformes ). New data about the morphology of spinnerets and spigots were obtained for both the adults and nymphal stages of both sexes. For the first time the silken threads of retreats, signal threads and attachment discs of the members of Segestria were subjected to a detailed SEM study. The data resulting from studying the spinning apparatus of S. senoculata was compared to current knowledge of the silk producing systems of families belonging to the Dysderoidea superfamily. Silks that are emitted from spigots in the course of retreat construction are not (similarly to the other dysderoids) processed by the spider’s legs during the subsequent process of hardening. Apart from the major ampullate glands/spigots, segestriids also possess developed minor ampullate glands. Minor ampullate threads are used by S. senoculata spiders when making their signal threads.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"388-394"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5934","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70241123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mosquitoes are potential vectors of some important diseases for humans and animals. Apart from mosquito borne diseases, mosquitoes cause nuisances for both humans and animals when they are abundant. The objective of this study was to determine the fauna of mosquitoes (Diptera: Culicidae) in Farashband County, southwest of Iran. The study was carried out from April to September 2012. Four collection sites, were selected randomly with regard to existing facilities in Farashband County. Sampling was carried out by dipping technique for collecting larvae and pyrethrum space spray collection (PSSC) for adult mosquitoes. Mean temperature was recorded for every month. A total of 1152 adults and 1505 larvae of Culicidae mosquitoes were collected, of which 3 genera and 7 species of Culicidae were recognized, namely, Anopheles superpictus , An. dthali, Culex sitaiticus, Cx. theileri, Cx. pipiens, Cx. tritaeniorhynchus and Culiseta longiareolata . Cs. longiareolata was the most frequent Culicidae mosquito collected at Farashband, with a total of 513, and 249 specimens, by larval and PSSC collection, respectively. The highest numbers of mosquitoes were collected in July (34.9%) and the lowest in April (3.8%), respectively. Regarding this research, there are some potential vectors in medical and veterinary importance in Farashband County and they are more active in July and June.
{"title":"Species composition of mosquitoes (Diptera: Culicidae) in Farashband district, southwest of Iran","authors":"Z. Soltani, D. Keshavarzi","doi":"10.4081/JEAR.2016.6268","DOIUrl":"https://doi.org/10.4081/JEAR.2016.6268","url":null,"abstract":"Mosquitoes are potential vectors of some important diseases for humans and animals. Apart from mosquito borne diseases, mosquitoes cause nuisances for both humans and animals when they are abundant. The objective of this study was to determine the fauna of mosquitoes (Diptera: Culicidae) in Farashband County, southwest of Iran. The study was carried out from April to September 2012. Four collection sites, were selected randomly with regard to existing facilities in Farashband County. Sampling was carried out by dipping technique for collecting larvae and pyrethrum space spray collection (PSSC) for adult mosquitoes. Mean temperature was recorded for every month. A total of 1152 adults and 1505 larvae of Culicidae mosquitoes were collected, of which 3 genera and 7 species of Culicidae were recognized, namely, Anopheles superpictus , An. dthali, Culex sitaiticus, Cx. theileri, Cx. pipiens, Cx. tritaeniorhynchus and Culiseta longiareolata . Cs. longiareolata was the most frequent Culicidae mosquito collected at Farashband, with a total of 513, and 249 specimens, by larval and PSSC collection, respectively. The highest numbers of mosquitoes were collected in July (34.9%) and the lowest in April (3.8%), respectively. Regarding this research, there are some potential vectors in medical and veterinary importance in Farashband County and they are more active in July and June.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"372-377"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.6268","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70241379","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Bocchi, D. Cinquanta, M. Negri, P. Dioli, L. Limonta
Quinoa ( Chenopodium quinoa Willd.) (Family: Amaranthaceae – APG classification) is an Andean grain recently introduced on the European market and cultivated in experimental fields. In one of these experimental fields, in San Giorgio Piacentino (Italy), a heavy bug infestation was observed. The species was identified as Nysius cymoides (Spinola) (Heteroptera Lygaeidae), a polyphagous species known as a pest of different crops. It occurs in the Mediterranean area from the sea level to the alpine meadows.
藜麦(Chenopodium Quinoa wild .)(科:苋科- APG分类)是最近引进欧洲市场并在试验田种植的安第斯谷物。在意大利圣乔治·皮亚琴蒂诺(San Giorgio Piacentino)的一个试验田中，观察到严重的虫害。经鉴定，该虫属多食性害虫，属异翅目Lygaeidae科。它发生在地中海地区，从海平面到高山草甸。
{"title":"Nysius cymoides (Spinola) on Chenopodium quinoa Willd. cultivated in Italy","authors":"S. Bocchi, D. Cinquanta, M. Negri, P. Dioli, L. Limonta","doi":"10.4081/JEAR.2016.5897","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5897","url":null,"abstract":"Quinoa ( Chenopodium quinoa Willd.) (Family: Amaranthaceae – APG classification) is an Andean grain recently introduced on the European market and cultivated in experimental fields. In one of these experimental fields, in San Giorgio Piacentino (Italy), a heavy bug infestation was observed. The species was identified as Nysius cymoides (Spinola) (Heteroptera Lygaeidae), a polyphagous species known as a pest of different crops. It occurs in the Mediterranean area from the sea level to the alpine meadows.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"332-334"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5897","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240827","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. N. Akono, C. Tonga, O. N. Hondt, M. Nsangou, R. Ngaha, G. T. Magne, L. Y. Enga, A. Y. Kayoum, P. N. Mache, L. A. Djomi, F. A. Mbouangouro, L. Lehman
Baseline entomological information should be collected before the implementation of industrial projects in malaria endemic areas. This allows for subsequent monitoring and evaluation of the project impact on malaria vectors. This study aimed at assessing the vectorial system and malaria transmission in two ecologically different villages of the South-Cameroon forest bloc targeted for the creation of an agro-industrial complex. For four consecutive seasons in 2013, adult mosquitoes were captured using Human Landing Catch in NDELLE village (located along a main road in a degraded forest with many fish ponds) and KOMBO village (located 5km far from the main road in a darker forest and crossed by the Mvobo River). Morpho-taxonomic techniques were used alongside molecular techniques for the identification of mosquito species. ELISA test was used for the detection of circumsporozoite protein antigen of Plasmodium falciparum . Mosquito biting rate was higher in NDELLE than in KOMBO (28.18 versus 17.34 bites per person per night). Mosquitoes had a strong tendency to endophagy both in NDELLE (73.57%) and KOMBO (70.21%). Three anophelines species were identified; An. gambiae , An. funestus s.s and An. moucheti s.s.. An. gambiae and An. funestus s.s. represented the bulk of aggressive mosquitoes in NDELLE (n=10,891; 96.62%). An. gambiae was responsible for 62.6% and 77.72% of malaria transmission in KOMBO and NDELLE respectively. Mean entomological inoculation rate recorded in KOMBO and NDELLE were 4.82 and 2.02 infective bites per person per night respectively. Vector control was mainly based on the use of long-lasting insecticidal nets and indoor residual spraying. The degraded forest environment added to the presence of fishponds resulted in the increase of aggressive mosquito density but not of malaria transmission. The managers should use these data for monitoring and evaluation of the impact of their project; malaria control strategies should be included in their project in order to mitigate the risk of increased malaria transmission as a result of the implementation of their projects.
{"title":"Aggressive mosquito fauna and malaria transmission in a forest area targeted for the creation of an agro-industrial complex in the south of Cameroon","authors":"P. N. Akono, C. Tonga, O. N. Hondt, M. Nsangou, R. Ngaha, G. T. Magne, L. Y. Enga, A. Y. Kayoum, P. N. Mache, L. A. Djomi, F. A. Mbouangouro, L. Lehman","doi":"10.4081/JEAR.2016.5930","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5930","url":null,"abstract":"Baseline entomological information should be collected before the implementation of industrial projects in malaria endemic areas. This allows for subsequent monitoring and evaluation of the project impact on malaria vectors. This study aimed at assessing the vectorial system and malaria transmission in two ecologically different villages of the South-Cameroon forest bloc targeted for the creation of an agro-industrial complex. For four consecutive seasons in 2013, adult mosquitoes were captured using Human Landing Catch in NDELLE village (located along a main road in a degraded forest with many fish ponds) and KOMBO village (located 5km far from the main road in a darker forest and crossed by the Mvobo River). Morpho-taxonomic techniques were used alongside molecular techniques for the identification of mosquito species. ELISA test was used for the detection of circumsporozoite protein antigen of Plasmodium falciparum . Mosquito biting rate was higher in NDELLE than in KOMBO (28.18 versus 17.34 bites per person per night). Mosquitoes had a strong tendency to endophagy both in NDELLE (73.57%) and KOMBO (70.21%). Three anophelines species were identified; An. gambiae , An. funestus s.s and An. moucheti s.s.. An. gambiae and An. funestus s.s. represented the bulk of aggressive mosquitoes in NDELLE (n=10,891; 96.62%). An. gambiae was responsible for 62.6% and 77.72% of malaria transmission in KOMBO and NDELLE respectively. Mean entomological inoculation rate recorded in KOMBO and NDELLE were 4.82 and 2.02 infective bites per person per night respectively. Vector control was mainly based on the use of long-lasting insecticidal nets and indoor residual spraying. The degraded forest environment added to the presence of fishponds resulted in the increase of aggressive mosquito density but not of malaria transmission. The managers should use these data for monitoring and evaluation of the impact of their project; malaria control strategies should be included in their project in order to mitigate the risk of increased malaria transmission as a result of the implementation of their projects.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"380-387"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5930","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240920","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
H. Dieng, F. Abang, A. H. Ahmad, I. Ghani, Tomomitsu Satho, F. Miake, H. Ahmad, W. F. Zuharah, A. Majid, R. Morales, N. P. Morales, C. N. Hipolito, G. Noweg
Body size is a physical factor of crucial importance underlying important traits of the reproductive dynamics of both sexes in mosquitoes. Most studies on the influence of body size in mating success of dengue vectors addressed sperm transfer to females and did not consider egg production, a prerequisite for population maintenance; male body size impact on reproduction has attracted little research interest with respect to sterile insect technique. In experiments involving differently sized adults, we examined whether the body size of the mates is a source of variation in reproductive outcome in Aedes aegypti . In the absence of male partners, large females (LF) showed better fecundity than small females (SF). In intraclass mating trials, egg production was much greater in largesized than smallsized pairs. There were comparable fecundities in large females mated with small males and large pairs. [SF•SM] and [SF•LM] pairs showed equivalent fecundity. Nonmating did not result in the production of viable eggs by either small or large females. We also observed that eggs produced by largesized females mated with small males had better hatching success than those from either small or large pairs. Mating between small females and large males resulted in poor egg viability.
{"title":"Physical characteristics and reproductive performance in Aedes (Diptera: Culicidae)","authors":"H. Dieng, F. Abang, A. H. Ahmad, I. Ghani, Tomomitsu Satho, F. Miake, H. Ahmad, W. F. Zuharah, A. Majid, R. Morales, N. P. Morales, C. N. Hipolito, G. Noweg","doi":"10.4081/JEAR.2016.5883","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5883","url":null,"abstract":"Body size is a physical factor of crucial importance underlying important traits of the reproductive dynamics of both sexes in mosquitoes. Most studies on the influence of body size in mating success of dengue vectors addressed sperm transfer to females and did not consider egg production, a prerequisite for population maintenance; male body size impact on reproduction has attracted little research interest with respect to sterile insect technique. In experiments involving differently sized adults, we examined whether the body size of the mates is a source of variation in reproductive outcome in Aedes aegypti . In the absence of male partners, large females (LF) showed better fecundity than small females (SF). In intraclass mating trials, egg production was much greater in largesized than smallsized pairs. There were comparable fecundities in large females mated with small males and large pairs. [SF•SM] and [SF•LM] pairs showed equivalent fecundity. Nonmating did not result in the production of viable eggs by either small or large females. We also observed that eggs produced by largesized females mated with small males had better hatching success than those from either small or large pairs. Mating between small females and large males resulted in poor egg viability.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"323-331"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5883","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240780","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Ramzi, A. Sahragard, Jalal Jalali Sendi, A. Aalami
The larvae of Ectomyelois ceratoniae Zeller were reared on the artificial diets containing 2% of Citrullus colocynthis L. (Cucurbitaceae) lectin and control to find any changes in gene expression of caspases. Specific primers were designed to amplify genes of six found caspases including Caspase 1, 2, 3, 4, 5 and 6. RNA of both treatments were extracted and cDNA molecules were synthesized prior to gene expression. Results of quantitative real-time polymerase chain reaction revealed that expression of all caspases in the fed larvae by 2% of lectin increased in comparison with control except for caspase 1 as 2.99, 5.7, 17.13, 23.18, 10.44-fold. These results are consistent with our previous studies on the lower activities of digestive enzymes that are due to death of midgut cells followed by binding of lectin molecule.
{"title":"Effect of Citrullus colocynthis L. (Cucurbitaceae) agglutinin on gene expression of caspases in Ectomyelois ceratoniae Zeller (Lepidoptera: Crambidae)","authors":"S. Ramzi, A. Sahragard, Jalal Jalali Sendi, A. Aalami","doi":"10.4081/JEAR.2016.5699","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5699","url":null,"abstract":"The larvae of Ectomyelois ceratoniae Zeller were reared on the artificial diets containing 2% of Citrullus colocynthis L. (Cucurbitaceae) lectin and control to find any changes in gene expression of caspases. Specific primers were designed to amplify genes of six found caspases including Caspase 1, 2, 3, 4, 5 and 6. RNA of both treatments were extracted and cDNA molecules were synthesized prior to gene expression. Results of quantitative real-time polymerase chain reaction revealed that expression of all caspases in the fed larvae by 2% of lectin increased in comparison with control except for caspase 1 as 2.99, 5.7, 17.13, 23.18, 10.44-fold. These results are consistent with our previous studies on the lower activities of digestive enzymes that are due to death of midgut cells followed by binding of lectin molecule.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"304-307"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5699","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Lobesia andereggiana (Herrich-Schaffer), Ancylis rhenana (Muller-Rutz), Eucosma agnatana (Christoph) and Lathronympha balearici Diakonoff (Lepidoptera, Olethreutinae) are reported for first time from the Italian fauna. The four species of Lepidoptera Tortricidae were collected from the Tuscan-Romagnol Appennines in the upper Acerreta Valley.
{"title":"Four Olethreutinae new to the Italian fauna from Tuscan-Romagnol Appennines (Lepidoptera, Tortricidae)","authors":"P. Trematerra, M. Colacci","doi":"10.4081/JEAR.2016.5856","DOIUrl":"https://doi.org/10.4081/JEAR.2016.5856","url":null,"abstract":"Lobesia andereggiana (Herrich-Schaffer), Ancylis rhenana (Muller-Rutz), Eucosma agnatana (Christoph) and Lathronympha balearici Diakonoff (Lepidoptera, Olethreutinae) are reported for first time from the Italian fauna. The four species of Lepidoptera Tortricidae were collected from the Tuscan-Romagnol Appennines in the upper Acerreta Valley.","PeriodicalId":37777,"journal":{"name":"Journal of Entomological and Acarological Research","volume":"48 1","pages":"335-338"},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4081/JEAR.2016.5856","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70240710","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：