Association and Attraction of Blueberry Maggot Fly Curran (Diptera: Tephritidae) to &lt;I&gt;Pantoea&lt;/I&gt; (&lt;I&gt;Enterobacter&lt;/I&gt;) &lt;I&gt;agglomerans&lt;/I&gt;

Maccollom, G. B.; Lauzon, Carol R.; Sjogren, Robert E.; Meyer, Wendy L.; Olday, F.

doi:10.1603/022.038.0114

Cited by 31 publications

(19 citation statements)

References 27 publications

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“…Likely, Pantoea symbionts are integral to the stinkbug's metabolic homeostasis and may be involved in the host's adaptation to nutritionally incomplete or difficult food resources. In other insects, as in the blueberry maggot fly Rhagoletis mendax , a Pantoea mutualistic symbiont closely related to P. agglomerans was reported to carry out essential nitrogen cycling processes (MacCollom et al ., ). A similar pattern is likely to occur in pentatomid stinkbugs, a group in which many species suck sap from leaves or fruiting parts of plants and may have to overcome nutritional deficiency of such unbalanced diet.…”

Section: Discussionmentioning

confidence: 97%

A wide diversity ofPantoealineages are engaged in mutualistic symbiosis and cospeciation processes with stinkbugs

Duron

Noël

2016

Environ Microbiol Rep

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Pantoea are emerging as widespread bacteria engaged in associations with a variety of hosts, including plants, insects and humans. Recently, mutualistic Pantoea gut symbionts have also been reported in pentatomid stinkbugs. In the present study, we examine the incidence and evolutionary history of these Pantoea symbionts in pentatomid stinkbug populations from 14 species, characterising the processes that shape their diversity. We identify midgut crypts of pentatomid stinkbugs as harboring a remarkable diversity of Pantoea. Present in 10 of the 14 sampled host species, multi-locus typing revealed the presence of 10 novel Panteoa lineages, all highly differentiated from the known Panteoa species. Rearing experiments of two pentatomid stinkbug species confirmed that these novel Panteoa are maternally inherited through egg smearing and engaged in mutualistic interactions with their hosts. Phylogenetic investigations further revealed that the Pantoea evolutionary history in pentatomid stinkbugs was notably complex: it has been shaped not only by horizontal transfers with frequent host turnover but also by strict vertical transmission over long evolutionary periods, resulting in host-symbiont codiversification.

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Section: Discussionmentioning

confidence: 97%

A wide diversity ofPantoealineages are engaged in mutualistic symbiosis and cospeciation processes with stinkbugs

Duron

Noël

2016

Environ Microbiol Rep

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“…Fruit fly larvae are commonly found in aggregations within a fruit 9,10,60 . Furthermore, fruits can be heterogeneous foraging environments for larvae [e.g., 61 ], and the nutritional composition of fruit can change as larvae develop [see 62-64 ]. Therefore, the density of larvae and local diet quality might determine larval movement within a fruit in search of more nutritious and less competitive foraging sites.…”

Section: Discussionmentioning

confidence: 99%

Social and nutritional factors shape larval aggregation, foraging, and body mass in a polyphagous fly

Morimoto

Nguyen

Tabrizi

et al. 2018

Preprint

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18The majority of insect species have a clearly defined larval stage during development. Larval 19 nutrition is crucial for individuals' growth and development, and larval foraging success 20 often depends on both resource availability and competition for those resources. To date, 21 however, little is known about how these factors interact to shape larval development and 22 behaviour. Here we manipulated the density of larvae of the polyphagous fruit fly pest 23Bactrocera tryoni ('Queensland fruit fly'), and the diet concentration of patches in a foraging 24 arena to address this gap. Using advanced statistical methods of machine learning and linear 25 regression models, we showed that high larval density results in increased larval aggregation 26 across all diets except in extreme diet dilutions. Larval aggregation was positively associated 27 with larval body mass across all diet concentrations except in extreme diet dilutions where 28 this relationship was reversed. Larvae in low-density arenas also tended to aggregate while 29 those in high-density arenas tended to disperse, an effect that was observed for all diet 30concentrations. Furthermore, larvae in high-density arenas displayed significant avoidance of 31 low concentration dietsa behaviour that was not observed amongst larvae in low-density 32 arenas. Thus, aggregation can help, rather than hinder, larval growth in high-density 33 environments, and larvae may be better able to explore available nutrition when at high-34 density than when at low density. 35 36 37 38 110 Predictions 1111) Previous studies in other species have shown that larvae prefer to occupy patches that 112 are shared with conspecifics [e.g., 45 ]. Thus, we predicted that an increase in larval 113 density should increase aggregation formation as well as aggregation size amongst 114 diet patches. However, this effect could be diet-dependent, whereby macronutrient-115 poor diets could support smaller aggregations whereas macronutrient-rich diets would 116 support larger aggregations. As a result, we predicted that aggregates should be 117 smaller in macronutrient-poor diets than in macronutrient-rich diets; 1182) In other insects, larval aggregation can facilitate feeding [e.g., 40 ]. We therefore 119 predicted that treatments with high larval aggregations should have larvae with higher 120 body mass. However, macronutrient-poor diet is known to reduce larval body mass 121 (see 'Introduction'). As a result, we predicted that larval body mass should be lower 122 in macronutrient-poor diets compared with macronutrient-rich diets; 123 124 Materials and Methods 125 Fly stock and egg collection 126We collected eggs from a laboratory-adapted stock of B. tryoni (>17 generations-old). The 127 colony has been maintained in non-overlapping generations in a controlled environment room 128(humidity 65 ± 5%, temperature 25 ± 0.5 o C) with light cycle of 12h light: 0.5h dusk:11h 129 dark: 0.5h dawn). Adults were provided a free-choice diet of hydrolysed yeast (MP 130 Biomedicals, Cat. n o 0210330...

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“…In insects, however, Pantoea have been shown to have mutualistic associations with their host. They are required for the completion of development in stinkbugs (Hosokawa et al, 2016; but see Dillon and Charnley, 2002), produce compounds that attract insects to their host plants in flies (Robacker et al, 2004; Maccollom et al, 2009), and in the orthopteran S. gregaria , produce a key component of the locust aggregation pheromone (Dillon et al, 2000, 2002) and reduce susceptibility to microbial pathogens through the production of phenols (Dillon and Charnley, 1986, 1995). …”

Section: Discussionmentioning

confidence: 99%

Spatial Structure of the Mormon Cricket Gut Microbiome and its Predicted Contribution to Nutrition and Immune Function

et al. 2017

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The gut microbiome of insects plays an important role in their ecology and evolution, participating in nutrient acquisition, immunity, and behavior. Microbial community structure within the gut is heavily influenced by differences among gut regions in morphology and physiology, which determine the niches available for microbes to colonize. We present a high-resolution analysis of the structure of the gut microbiome in the Mormon cricket Anabrus simplex, an insect known for its periodic outbreaks in the western United States and nutrition-dependent mating system. The Mormon cricket microbiome was dominated by 11 taxa from the Lactobacillaceae, Enterobacteriaceae, and Streptococcaceae. While most of these were represented in all gut regions, there were marked differences in their relative abundance, with lactic-acid bacteria (Lactobacillaceae) more common in the foregut and midgut and enteric (Enterobacteriaceae) bacteria more common in the hindgut. Differences in community structure were driven by variation in the relative prevalence of three groups: a Lactobacillus in the foregut, Pediococcus lactic-acid bacteria in the midgut, and Pantoea agglomerans, an enteric bacterium, in the hindgut. These taxa have been shown to have beneficial effects on their hosts in insects and other animals by improving nutrition, increasing resistance to pathogens, and modulating social behavior. Using PICRUSt to predict gene content from our 16S rRNA sequences, we found enzymes that participate in carbohydrate metabolism and pathogen defense in other orthopterans. These were predominately represented in the hindgut and midgut, the most important sites for nutrition and pathogen defense. Phylogenetic analysis of 16S rRNA sequences from cultured isolates indicated low levels of divergence from sequences derived from plants and other insects, suggesting that these bacteria are likely to be exchanged between Mormon crickets and the environment. Our study shows strong spatial variation in microbiome community structure, which influences predicted gene content and thus the potential of the microbiome to influence host function.

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Association and Attraction of Blueberry Maggot Fly Curran (Diptera: Tephritidae) to <I>Pantoea</I> (<I>Enterobacter</I>) <I>agglomerans</I>

Cited by 31 publications

References 27 publications

A wide diversity ofPantoealineages are engaged in mutualistic symbiosis and cospeciation processes with stinkbugs

A wide diversity ofPantoealineages are engaged in mutualistic symbiosis and cospeciation processes with stinkbugs

Social and nutritional factors shape larval aggregation, foraging, and body mass in a polyphagous fly

Spatial Structure of the Mormon Cricket Gut Microbiome and its Predicted Contribution to Nutrition and Immune Function

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