scholarly journals The Host Fruit Amplifies Mutualistic Interactions between Ceratitis Capitata Larvae and Associated Bacteria

2018 ◽  
Author(s):  
Doron Shalom Yishai Zaada ◽  
Michael Ben-Yosef ◽  
Boaz Yuval ◽  
Edouard Jurkevitch

AbstractBackground:The Mediterranean fruit fly Ceratitis capitata is a major pest in horticulture. The development of fly larvae is mediated by bacterial decay in the fruit tissue. Despite the importance of bacteria on larval development, very little is known about the interaction between bacteria and larvae in their true ecological context. Understanding their relationship and inter-dependence in the host fruit is important for the development of new pest control interfaces to deal with this pest.Results:We find no negative effects on egg hatch or larval development brought about by the bacterial isolates tested. The various symbionts inhabiting the fly’s digestive system differ in their degree of contribution to the development of fly larvae depending on the given host and their sensitivity to induced inhibition caused by female produced antimicrobial peptides. These differences were observed not only at the genus or species level but also between isolates of the same species. We demonstrate how the microbiota from the mother’s gut supports the development of larvae in the fruit host and show that larvae play a major role in spreading the bacterial contagion in the infected fruit itself. In addition, we present (for the first time) evidence for horizontal transfer of bacteria between larvae of different maternal origin that develop together in the same fruit.Conclusions:Larvae play a major role in the spread and shaping of the microbial population in the fruit. The transfer of bacteria between different individuals developing in the same fruit suggests that the infested fruit serves as a microbial hub for the amplification and spread of bacterial strains between individuals.

2019 ◽  
Vol 19 (S2) ◽  
Author(s):  
Doron Shalom Yishai Zaada ◽  
Michael Ben-Yosef ◽  
Boaz Yuval ◽  
Edouard Jurkevitch

Abstract Background The Mediterranean fruit fly Ceratitis capitata is a major pest in horticulture. The development of fly larvae is mediated by bacterial decay in the fruit tissue. Despite the importance of bacteria on larval development, very little is known about the interaction between bacteria and larvae in their true ecological context. Understanding their relationship and inter-dependence in the host fruit is important for the development of new pest control interfaces to deal with this pest. Results We find no negative effects on egg hatch or larval development brought about by the bacterial isolates tested. The various symbionts inhabiting the fly’s digestive system differ in their degree of contribution to the development of fly larvae depending on the given host and their sensitivity to induced inhibition caused by female produced antimicrobial peptides. These differences were observed not only at the genus or species level but also between isolates of the same species. We demonstrate how the microbiota from the mother’s gut supports the development of larvae in the fruit host and show that larvae play a major role in spreading the bacterial contagion in the infected fruit itself. In addition, we present (for the first time) evidence for horizontal transfer of bacteria between larvae of different maternal origin that develop together in the same fruit. Conclusions Larvae play a major role in the spread and shaping of the microbial population in the fruit. The transfer of bacteria between different individuals developing in the same fruit suggests that the infested fruit serves as a microbial hub for the amplification and spread of bacterial strains between individuals.


Nativa ◽  
2019 ◽  
Vol 7 (5) ◽  
pp. 513
Author(s):  
Michele Emily Souza da Silva ◽  
Michel Ariquenes Wochner ◽  
Maria do Socorro Miranda de Sousa ◽  
Marliton Rocha Barreto ◽  
Ricardo Adaime da Silva

As moscas-das-frutas estão presentes em todas as regiões do Brasil e são responsáveis por grandes perdas econômicas em pomares comerciais. Este trabalho teve o objetivo de determinar a riqueza de espécies de moscas-das-frutas, suas respectivas plantas hospedeiras e seus parasitoides em municípios da região norte de Mato Grosso. Foram realizadas coletas de frutos de 34 espécies vegetais, de julho de 2016 a novembro de 2017. Os frutos coletados foram acondicionados em recipientes plásticos para observar a emergência das moscas-das-frutas e parasitoides. Foram obtidos 2.709 espécimes de moscas-das-frutas (cinco espécies) e 179 espécimes de parasitoides (três espécies). Este trabalho apresenta os primeiros registros de hospedeiros de moscas-das-frutas para o Mato Grosso. Adicionalmente, os parasitoides Utetes anastrephae Viereck e Asobara anastrephae (Muesebeck) são relatados pela primeira vez no Estado.Palavras-chave: Anastrepha; Ceratitis capitata; Relação tritrófica; Amazônia Meridional. FRUIT FLIES, THEIR HOST PLANTS AND PARASITOIDS IN THE NORTHERN STATE OF MATO GROSSO, BRAZIL ABSTRACT: Fruit flies are present in all regions of Brazil and are responsible for large economic losses in commercial orchards. This work aimed to determine the richness of fruit fly species, their host plants and their parasitoids in municipalities in the northern region of Mato Grosso. We collected fruits from 34 plant species, from July 2016 to November 2017. The collected fruits were packed in plastic containers to observe the emergence of fruit flies and parasitoids. We obtained 2,709 specimens of fruit flies (five species) and 179 specimens of parasitoids (three species). This work presents the first records of hosts of fruit flies for Mato Grosso. In addition, the parasitoids Utetes anastrephae Viereck and Asobara anastrephae (Muesebeck) are reported for the first time in the State.Keywords: Anastrepha; Ceratitis capitata; Tritrophic relationship; Southern Amazon.


2019 ◽  
Vol 41 (1) ◽  
Author(s):  
Ricardo Falcão de Sá ◽  
Alessandro da Silva Oliveira ◽  
Rita de Cassia Costa de Oliveira ◽  
José Carlos Marques dos Santos ◽  
Aldenise Alves Moreira ◽  
...  

Abstract Brazil is the fourth world’s largest banana (Musa spp.) producer and largest consumer. Mediterranean fruit fly Ceratitis capitata (Wiedemann, 1824) (Diptera: Tephritidae) is the main pest of quarantine importance in the exploration of fresh fruits. This species has shown wide ecological plasticity, with adaptation in several native and exotic hosts and different edaphoclimatic conditions. In November 2017 and March 2018, banana samples of AAB subgroup, Prata Anã, Prata Pacovan and Prata BRS Princesa, were collected from orchards located in the fruit producing region of São Francisco, Juazeiro, Bahia, Brazil. Fruits were sent to the laboratory for processing aimed at obtaining adults. A total of 177 tephritid pupae were obtained in Prata Anã variety, emerging 106 C. capitata adults. The total infestation rates in puparia kg fruit-1 and puparia fruit-1 were 7.45 and 0.70, respectively. Thus, the association between banana and C. capitata was recorded for the first time in Brazil and the probable implications related to this bitrophic association will be discussed.


2009 ◽  
Vol 76 (5) ◽  
pp. 1320-1327 ◽  
Author(s):  
C. Alfonso Molina ◽  
Juan F. Ca�a-Roca ◽  
Antonio Osuna ◽  
Susana Vilchez

ABSTRACT Ceratitis capitata (Wiedemann) (Diptera: Tephritidae), the Mediterranean fruit fly (medfly), is one of the most important fruit pests worldwide. The medfly is a polyphagous species that causes losses in many crops, which leads to huge economic losses. Entomopathogenic bacteria belonging to the genus Bacillus have been proven to be safe, environmentally friendly, and cost-effective tools to control pest populations. As no control method for C. capitata based on these bacteria has been developed, isolation of novel strains is needed. Here, we report the isolation of 115 bacterial strains and the results of toxicity screening with adults and larvae of C. capitata. As a result of this analysis, we obtained a novel Bacillus pumilus strain, strain 15.1, that is highly toxic to C. capitata larvae. The toxicity of this strain for C. capitata was related to the sporulation process and was observed only when cultures were incubated at low temperatures before they were used in a bioassay. The mortality rate for C. capitata larvae ranged from 68 to 94% depending on the conditions under which the culture was kept before the bioassay. Toxicity was proven to be a special characteristic of the newly isolated strain, since other B. pumilus strains did not have a toxic effect on C. capitata larvae. The results of the present study suggest that B. pumilus 15.1 could be considered a strong candidate for developing strategies for biological control of C. capitata.


2016 ◽  
Vol 83 (0) ◽  
Author(s):  
Sônia Maria Forti Broglio ◽  
Jakeline Maria dos Santos ◽  
Nivia da Silva Dias-Pini ◽  
Daniel Gonçalves Lima Borges da Silva ◽  
Simone Silva da Costa ◽  
...  

ABSTRACT: The aim of this study was to know and assess natural infestation of frugivorous flies (Diptera: Tephritidae and Lonchaeidae) and their parasitoids in Surinam cherry fruits. The survey was conducted in an organic orchard, located in the municipality of Maceió, Alagoas. From October 2010 to January 2011, mature green, half-ripe and ripe Surinam cherry were collected. Infestation index was higher for mature green and half-ripe fruits. Five species of frugivorous flies were identified: Anastrepha fraterculus , Anastrepha obliqua , Anastrepha sororcul , Ceratitis capitata (Diptera: Tephritidae), and Neosilba pendula (Diptera: Lonchaeidae). It were identified the parasitoids: Doryctobracon areolatus , Opius bellus, Utetes anastrephae and Asobara anastrephae (Hymenoptera: Braconidae), being D. areolatus with highest percentage of parasitism in all maturation stages. N . pendula was recorded in Brasil associated to Eugenia uniflora L. (Myrtaceae). O . bellus , U . anastrephae and A . anastrephae were also recorded for the first time in the State of Alagoas. Mature green and half-ripe Surinam cherries are the most fruit fly infested, and the parasitism rate is higher in half-ripe and ripe fruits.


2020 ◽  
Vol 113 (3) ◽  
pp. 1158-1175
Author(s):  
Orlando S Dolores ◽  
Javier M Layme ◽  
Carlos C Huaynate

Abstract The host status of sweet granadilla (Passifflora ligularis Juss.) to Ceratitis capitata (Wiedemann) and Anastrepha fraterculus (Wiedemann) in Peru was determined. Experiments were conducted in Pasco (Peru) in four different orchards, over 2 yr (2016 and 2017), two orchards per year. Choice (granadilla plus natural host) and no-choice foraging behavior trials were conducted using sleeves under field conditions, and forced infestation was examined in laboratory cages, with five females per fruit. The development time of C. capitata was determined, and the oviposition behavior of C. capitata and A. fraterculus was examined. Three fruit maturity stages of intact (n = 1,320) and punctured (n = 1,320) granadilla fruits were examined. Adult C. capitata (n = 4,418) and A. fraterculus (n = 2,484) were trapped in the orchards, and commercial granadilla fruits (n = 1,940) sampled and dissected. Fruit fly infestation was not found in any intact granadilla fruits. Larvae and pupae were found inside punctured granadilla only in fruits broken after 20 d, and adults only emerged when those pupae were removed from the fruit. Ceratitis capitata development time was longer in punctured granadilla than that in host fruit. In the oviposition test, A. fraterculus and C. capitata did not lay eggs in intact granadilla, and C. capitata laid eggs in punctured fruits but larvae were not found. Because of the resistance mechanisms of the pericarp, commercial fruits of Passiflora ligularis are not a natural host of C. capitata and A. fraterculus in Peru.


2018 ◽  
Vol 55 (No. 1) ◽  
pp. 54-60 ◽  
Author(s):  
Hasan Al-Khshemawee ◽  
Manjree Agarwal ◽  
Yonglin Ren

The use of stable isotopes to label an insect species, the Mediterranean fruit fly Ceratitis capitata (Diptera: Tephidae) (medfly) was investigated. Labelling allows mating and life history characteristics to be investigated experimentally. <sup>13</sup>C<sub>6</sub>-glucose was incorporated into the diet of medflies at various stages of development by adding it to larval media or providing adults with sugar water. Data was collected from egg hatching until the death of adults. The results show that stable isotopes successfully labelled medflies in laboratory conditions. There were significant differences between labelled and unlabelled treatments in terms of eggs hatching rates, larval development, pupae emergence, adult survival, and mating behaviour. Labelling during larval development, and combined labelling at the larval and adult stages, resulted in detectable values. Labelling in the larval stage had no effect on mating behaviour, but that in the adult stage did. This study demonstrates that it is possible to label adult medflies and to detect the label after mating.


2021 ◽  
Author(s):  
Marc De Meyer

Abstract C. rosa is a polyphagous African species. Its known distribution is mainly southern and eastern Africa. It is considered to be a major pest of a number of commercial fruits, including fruits that are grown in subtropical or more temperate environments (but see remark under host plants). It has similar environmental requirements to Ceratitis capitata except that it can withstand less dry conditions. It should be considered as a potential invasive species in other parts of Africa, outside its current range, and in other parts of the world (Tanga et al., 2018). The most likely pathway of dispersal and introduction is as larvae in infested fruits with commercial shipments or in the luggage of travellers. C. rosa is of quarantine significance for EPPO, JUNAC and OIRSA.


2017 ◽  
Vol 10 (3) ◽  
pp. 259-260 ◽  
Author(s):  
Ricardo Adaime ◽  
Rodrigo Souza Santos ◽  
Tatyane da Silva Azevedo ◽  
Adriana da Silva Vasconcelos ◽  
Maria do Socorro Miranda de Sousa ◽  
...  

Abstract. We report for the first time the presence of Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) in the state of Acre, Brazil, reared from guava fruit (Psidium guajava L.) and star fruit (Averrhoacarambola L.). This finding increases our knowledge about the geographical records of this fruit fly in the Brazilian Amazon.Primeiro registro de Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) no estado do Acre, BrasilResumo. Registra-se pela primeira vez a presença de Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) no estado do Acre, Brasil, a partir de frutos de goiabeira (Psidium guajava L.) e de caramboleira (Averrhoacarambola L.), aumentando o conhecimento dos registros geográficos dessa mosca na Amazônia brasileira.


HortScience ◽  
2010 ◽  
Vol 45 (10) ◽  
pp. 1496-1500 ◽  
Author(s):  
Adriana Contreras-Oliva ◽  
Cristina Rojas-Argudo ◽  
María B. Pérez-Gago

The combination of insecticidal atmosphere (IA) with short cold exposure periods has been effective in controlling the Mediterranean fruit fly, Ceratitis capitata (Wiedemann). In the present work, ‘Valencia’ orange quality was assessed on fruit exposed to IA (95% CO2) at 23, 28, or 33 °C for 20 h; next stored at 1 °C for 8, 16, or 24 days; and then kept at 20 °C for 7 days to simulate shelf life. Physicochemical, sensory, and nutritional quality parameters were analyzed on treated and control (air-exposed) fruit. No significant negative effects on fruit quality were observed in IA-treated ‘Valencia’ oranges. In addition, the exposure of oranges to 95% CO2 at 28 °C reduced the weight and firmness loss compared with fruit kept in air. Ethanol content increased in the fruits exposed to 95% CO2 at 28 or 33 °C, but sensory quality was not adversely affected.


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