Termite Gut Microbiome

2018 ◽  
pp. 69-99 ◽  
Author(s):  
Navodita Maurice ◽  
László Erdei
Keyword(s):  
Gut Microbiome ◽  
Termite Gut

scholarly journals Genome Shrinkage and Loss of Nutrient-Providing Potential in the Obligate Symbiont of the Primitive Termite Mastotermes darwiniensis

2011 ◽  
Vol 78 (1) ◽  
pp. 204-210 ◽  
Author(s):  
Zakee L. Sabree ◽  
Charlie Ye Huang ◽  
Gaku Arakawa ◽  
Gaku Tokuda ◽  
Nathan Lo ◽  
...  
Keyword(s):  
Amino Acid ◽  
Gut Microbiome ◽  
Essential Amino Acid ◽  
Diet Shift ◽  
Evolutionary Divergence ◽  
Relaxed Selection ◽  
Content Type ◽  
Gut Microbes ◽  
Termite Gut ◽  
Show Evidence

ABSTRACTBeneficial microbial associations with insects are common and are classified as either one or a few intracellular species that are vertically transmitted and reside intracellularly within specialized organs or as microbial assemblages in the gut. Cockroaches and termites maintain at least one if not both beneficial associations.Blattabacteriumis a flavobacterial endosymbiont of nearly all cockroaches and the termiteMastotermes darwiniensisand can use nitrogenous wastes in essential amino acid and vitamin biosynthesis. Key changes during the evolutionary divergence of termites from cockroaches are loss ofBlattabacterium, diet shift to wood, acquisition of a specialized hindgut microbiota, and establishment of advanced social behavior. Termite gut microbes collaborate to fix nitrogen, degrade lignocellulose, and produce nutrients, and the absence ofBlattabacteriumin nearly all termites suggests that its nutrient-provisioning role has been replaced by gut microbes.M. darwiniensisis a basal, extant termite that solely retainsBlattabacterium, which would show evidence of relaxed selection if it is being supplanted by the gut microbiome. This termite-associatedBlattabacteriumgenome is ∼8% smaller than cockroach-associatedBlattabacteriumgenomes and lacks genes underlying vitamin and essential amino acid biosynthesis. Furthermore, theM. darwiniensisgut microbiome membership is more consistent between individuals and includes specialized termite gut-associated bacteria, unlike the more variable membership of cockroach gut microbiomes. TheM. darwiniensis Blattabacteriumgenome may reflect relaxed selection for some of its encoded functions, and the loss of this endosymbiont in all remaining termite genera may result from its replacement by a functionally complementary gut microbiota.

scholarly journals Targeted biomass degradation by the higher termite gut system - integrative omics applied to host and its gut microbiome

2020 ◽  
Author(s):  
Magdalena Calusinska ◽  
Martyna Marynowska ◽  
Marie Bertucci ◽  
Boris Untereiner ◽  
Dominika Klimek ◽  
...  
Keyword(s):  
Gut Microbiome ◽  
Expression Profiles ◽  
Gene Expression Profiles ◽  
Amplicon Sequencing ◽  
Lignocellulose Degradation ◽  
Termite Gut ◽  
Main Components ◽  
Term Objective ◽  
Integrative Omics

AbstractMiscanthus sp. is regarded as suitable biomass for different biorefinery value chains. However, due to high recalcitrance, its wide use is yet untapped. Termite is the most efficient lignocellulose degrading insect, and its success results from synergistic cooperation with its gut microbiome. Here, we investigated at holobiont level the dynamic adaptation of a higher termite Cortaritermes sp. to imposed Miscanthus diet, with a long-term objective of overcoming lignocellulose recalcitrance. We used an integrative omics approach, comprising amplicon sequencing, metagenomics and metatranscriptomics that we combined with enzymatic characterisation of carbohydrate active enzymes from termite gut Fibrobacteres and Spirochaetae. Adaptation to the new diet was evidenced by reduced gut bacterial diversity and modified gene expression profiles, further suggesting a shift towards utilisation of cellulose and arabinoxylan, two main components of Miscanthus lignocellulose. Low identity of reconstructed microbial genomes to microbes from closely related termite species, supported the hypothesis of a strong phylogenetic relationship between host and its gut microbiome. Application-wise, this makes each termite gut system an endless source of enzymes that are potentially industrially relevant.This study provides a framework for better understanding the complex lignocellulose degradation by the higher termite gut system and paves a road towards its future bioprospecting.

scholarly journals Uncovering the Potential of Termite Gut Microbiome for Lignocellulose Bioconversion in Anaerobic Batch Bioreactors

2017 ◽  
Vol 8 ◽  
Author(s):  
Lucas Auer ◽  
Adèle Lazuka ◽  
David Sillam-Dussès ◽  
Edouard Miambi ◽  
Michael O'Donohue ◽  
...  
Keyword(s):  
Gut Microbiome ◽  
Termite Gut ◽  
Batch Bioreactors

scholarly journals Optimization of a metatranscriptomic approach to study the lignocellulolytic potential of the higher termite gut microbiome

BMC Genomics ◽  
2017 ◽  
Vol 18 (1) ◽  
Author(s):  
Martyna Marynowska ◽  
Xavier Goux ◽  
David Sillam-Dussès ◽  
Corinne Rouland-Lefèvre ◽  
Yves Roisin ◽  
...  
Keyword(s):  
Gut Microbiome ◽  
Termite Gut

scholarly journals Diversity structure of the microbial communities in the guts of four neotropical termite species

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10959
Author(s):  
Surendra Vikram ◽  
Joel D. Arneodo ◽  
Javier Calcagno ◽  
Maximiliano Ortiz ◽  
Maria Laura Mon ◽  
...  
Keyword(s):  
Gut Microbiome ◽  
Feeding Habits ◽  
Termite Species ◽  
Structure Comparison ◽  
Β Diversity ◽  
Nasutitermes Corniger ◽  
Α Diversity ◽  
Termite Gut ◽  
Microbial Community Assembly ◽  
Feeding Sources

The termite gut microbiome is dominated by lignocellulose degrading microorganisms. This study describes the intestinal microbiota of four Argentinian higher termite species with different feeding habits: Microcerotermes strunckii (hardwood), Nasutitermes corniger (softwood), Termes riograndensis (soil organic matter/grass) and Cornitermes cumulans (grass) by deep sequencing of amplified 16S rRNA and ITS genes. In addition, we have performed a taxonomic and gut community structure comparison incorporating into the analysis the previously reported microbiomes of additional termite species with varied diets. The bacterial phylum Spirochaetes was dominant in the guts of M. strunckii, N. corniger and C. cumulans, whereas Firmicutes predominated in the T. riograndensis gut microbiome. A single bacterial genus, Treponema (Spirochaetes), was dominant in all termite species, except for T. riograndensis. Both in our own sequenced samples and in the broader comparison, prokaryotic α-diversity was higher in the soil/grass feeders than in the wood feeders. Meanwhile, the β-diversity of prokaryotes and fungi was highly dissimilar among strict wood-feeders, whereas that of soil- and grass-feeders grouped more closely. Ascomycota and Basidiomycota were the only fungal phyla that could be identified in all gut samples, because of the lack of reference sequences in public databases. In summary, higher microbial diversity was recorded in termites with more versatile feeding sources, providing further evidence that diet, along with other factors (e.g., host taxonomy), influences the microbial community assembly in the termite gut.

scholarly journals Rampant Host Switching Shaped the Termite Gut Microbiome

2018 ◽  
Vol 28 (4) ◽  
pp. 649-654.e2 ◽  
Author(s):  
Thomas Bourguignon ◽  
Nathan Lo ◽  
Carsten Dietrich ◽  
Jan Šobotník ◽  
Sarah Sidek ◽  
...  
Keyword(s):  
Gut Microbiome ◽  
Host Switching ◽  
Termite Gut

Folate and vitamin B-12 deficiencies additively impaired memory function and disturbed the gut microbiota in amyloid-β infused rats

2019 ◽  
pp. 1-13 ◽  
Author(s):  
Sunmin Park ◽  
Sunna Kang ◽  
Da Sol Kim
Keyword(s):  
Insulin Resistance ◽  
Gut Microbiota ◽  
Insulin Signaling ◽  
Gut Microbiome ◽  
Metabolic Diseases ◽  
Memory Function ◽  
Amyloid Β ◽  
Impaired Memory ◽  
Ca1 Region ◽  
Folate And Vitamin B12

Abstract. Folate and vitamin B12(V-B12) deficiencies are associated with metabolic diseases that may impair memory function. We hypothesized that folate and V-B12 may differently alter mild cognitive impairment, glucose metabolism, and inflammation by modulating the gut microbiome in rats with Alzheimer’s disease (AD)-like dementia. The hypothesis was examined in hippocampal amyloid-β infused rats, and its mechanism was explored. Rats that received an amyloid-β(25–35) infusion into the CA1 region of the hippocampus were fed either control(2.5 mg folate plus 25 μg V-B12/kg diet; AD-CON, n = 10), no folate(0 folate plus 25 μg V-B12/kg diet; AD-FA, n = 10), no V-B12(2.5 mg folate plus 0 μg V-B12/kg diet; AD-V-B12, n = 10), or no folate plus no V-B12(0 mg folate plus 0 μg V-B12/kg diet; AD-FAB12, n = 10) in high-fat diets for 8 weeks. AD-FA and AD-VB12 exacerbated bone mineral loss in the lumbar spine and femur whereas AD-FA lowered lean body mass in the hip compared to AD-CON(P < 0.05). Only AD-FAB12 exacerbated memory impairment by 1.3 and 1.4 folds, respectively, as measured by passive avoidance and water maze tests, compared to AD-CON(P < 0.01). Hippocampal insulin signaling and neuroinflammation were attenuated in AD-CON compared to Non-AD-CON. AD-FAB12 impaired the signaling (pAkt→pGSK-3β) and serum TNF-α and IL-1β levels the most among all groups. AD-CON decreased glucose tolerance by increasing insulin resistance compared to Non-AD-CON. AD-VB12 and AD-FAB12 increased insulin resistance by 1.2 and 1.3 folds, respectively, compared to the AD-CON. AD-CON and Non-AD-CON had a separate communities of gut microbiota. The relative counts of Bacteroidia were lower and those of Clostridia were higher in AD-CON than Non-AD-CON. AD-FA, but not V-B12, separated the gut microbiome community compared to AD-CON and AD-VB12(P = 0.009). In conclusion, folate and B-12 deficiencies impaired memory function by impairing hippocampal insulin signaling and gut microbiota in AD rats.

Sign in / Sign up

Export Citation Format

Share Document