Influence of Starvation on the Structure of Gut-Associated Bacterial Communities in the Chinese White Pine Beetle (Dendroctonus armandi)

Hu, Xia; Li, Ming; Zhang, Feiping; Chen, Hui

doi:10.3390/f7060126

Cited by 4 publications

(3 citation statements)

References 43 publications

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“…The predominance of Enterobacteriaceae in the gut bacterial community of M . alternatus is in agreement with reports from other phytophagous insects from several feeding guilds ( Broderick et al 2004 , Delalibera et al 2005 , Schloss et al 2006 , Hu et al 2016 ). Enterobacteriaceae were also found to be the predominant family (52.2%) in the bacterial communities colonizing the trachea of M. galloprovincialis and M .…”

Section: Discussionsupporting

confidence: 92%

Bacterial Communities Associated With the Pine Wilt Disease Vector Monochamus alternatus (Coleoptera: Cerambycidae) During Different Larval Instars

Raffa

et al. 2017

Journal of Insect Science

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We investigated the influence of larval instar on the structure of the gut bacterial community in the Japanese pine sawyer, Monochamus alternatus (Hope; Coleoptera: Cerambycidae). The diversity of the gut bacterial community in early, phloem-feeding larvae is significantly higher than in later, wood-feeding larvae. Many of these associates were assigned into a few taxonomic groups, of which Enterobacteriaceae was the most abundant order. The predominant bacterial genus varied during the five instars of larval development. Erwinia was the most abundant genus in the first and fifth instars, Enterobacter was predominant in the third and fourth instars, and the predominant genus in the second instars was in the Enterobacteriaceae (genus unclassified). Actinobacteria were reported in association with M. alternatus for the first time in this study. Cellulomonadaceae (Actinobacteria) was the second most abundant family in the first instar larvae (10.6%). These data contribute to our understanding of the relationships among gut bacteria and M. alternatus, and could aid the development of new pest control strategies.

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Section: Discussionsupporting

confidence: 92%

Bacterial Communities Associated With the Pine Wilt Disease Vector Monochamus alternatus (Coleoptera: Cerambycidae) During Different Larval Instars

Raffa

et al. 2017

Journal of Insect Science

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“…Citrobacter have been previously reported to dominate in several species of weevil beetles, e.g. , the palm weevil, R. ferrugineus , and the bark beetle, Dendroctonus armandi [32, 35, 40–42], whereas it was less abundant in others, e.g. , the bark beetles, D. valens and D. mexicanus [43].…”

Section: Discussionmentioning

confidence: 99%

Gut bacteria of weevils developing on plant roots under extreme desert conditions

et al. 2019

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BackgroundMany phytophagous insects, whose diet is generally nitrogen-poor, rely on gut bacteria to compensate for nutritional deficits. Accordingly, we hypothesized that insects in desert environments may evolve associations with gut bacteria to adapt to the extremely low nutrient availability. For this, we conducted a systematic survey of bacterial communities in the guts of weevils developing inside mud chambers affixed to plant roots in the Negev Desert of Israel, based on 16S rRNA gene amplicon sequencing.ResultsOur analyses revealed that gut bacterial communities in weevil larvae were similar across a wide geographical range, but differed significantly from those of the mud chambers and of the surrounding soils. Nevertheless, a high proportion of bacteria (including all of the core bacteria) found in the weevils were also detected in the mud chambers and soils at low relative abundances. The genus Citrobacter (of the Enterobacteriaceae family) was the predominant group in the guts of all individual weevils. The relative abundance of Citrobacter significantly decreased at the pupal and adult stages, while bacterial diversity increased. A mini literature survey revealed that members of the genus Citrobacter are associated with nitrogen fixation, recycling of uric acid nitrogen, and cellulose degradation in different insects.ConclusionsThe results suggest that although weevils could potentially acquire their gut bacteria from the soil, weevil host internal factors, rather than external environmental factors, were more important in shaping their gut bacterial communities, and suggest a major role for Citrobacter in weevil nutrition in this challenging environment. This study highlights the potential involvement of gut bacteria in the adaptation of insects to nutritional deficiencies under extreme desert conditions.

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“…A reduction of certain types of fatty acids during dispersal may influence the fatty acid compatibility with the novel host and affect adult reproduction in the new host. Reduction of energy resources after starvation increases the bacterial diversity in D. armandi (Hu et al ., ), which may increase nitrogen fixation in low nutritional bark environments and influence fitness and reproduction.…”

Section: Discussionmentioning

confidence: 99%

Energy use by the mountain pine beetle (Coleoptera: Curculionidae: Scolytinae) for dispersal by flight

Wijerathna

Evenden

2019

Physiol. Entomol.

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The mountain pine beetle Dendroctonus ponderosae Hopkins is a major native pest of Pinus Linnaeus (Pinaceae) in western North America. Host colonization by the mountain pine beetle is associated with an obligatory dispersal phase, during which beetles fly in search of a suitable host. Mountain pine beetles use stored energy from feeding in the natal habitat to power flight before host colonization and brood production. Lipids fuel mountain pine beetle flight, although it is not known whether other energy sources are also used during flight. In the present study, we compare the level of energy substrates, proteins, carbohydrates and lipids of individual mountain pine beetles flown on flight mills with unflown control beetles. We use a colorimetric method to measure the entire metabolite content of each individual beetle. The present study reveals that mountain pine beetles are composed of more protein and lipid than carbohydrate. Both female and male mountain pine beetles use lipids and carbohydrates as energy sources during flight. There is variation between sexes, however, in the energy substrates used for flight. Male mountain pine beetles use protein, in addition to lipids and carbohydrates, to fuel flight, whereas protein content is not different between flown and control females.

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Influence of Starvation on the Structure of Gut-Associated Bacterial Communities in the Chinese White Pine Beetle (Dendroctonus armandi)

Cited by 4 publications

References 43 publications

Bacterial Communities Associated With the Pine Wilt Disease Vector Monochamus alternatus (Coleoptera: Cerambycidae) During Different Larval Instars

Bacterial Communities Associated With the Pine Wilt Disease Vector Monochamus alternatus (Coleoptera: Cerambycidae) During Different Larval Instars

Gut bacteria of weevils developing on plant roots under extreme desert conditions

Energy use by the mountain pine beetle (Coleoptera: Curculionidae: Scolytinae) for dispersal by flight

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