Microbiota and functional analyses of nitrogen-fixing bacteria in root-knot nematode parasitism of plants DOI Creative Commons
Ye Li,

Shaonan Lei,

Zhiqiang Cheng

et al.

Microbiome, Journal Year: 2023, Volume and Issue: 11(1)

Published: March 10, 2023

Abstract Background Root-knot nematodes (RKN) are among the most important root-damaging plant-parasitic nematodes, causing severe crop losses worldwide. The plant rhizosphere and root endosphere contain rich diverse bacterial communities. However, little is known about how RKN bacteria interact to impact parasitism health. Determining keystone microbial taxa their functional contributions health development for understanding developing efficient biological control strategies in agriculture. Results analyses of microbiota plants with without showed that host species, developmental stage, ecological niche, nematode parasitism, as well interactions, contributed significantly variations root-associated microbiota. Compared healthy tomato at different stages, significant enrichments belonging Rhizobiales, Betaproteobacteriales, Rhodobacterales were observed endophytic nematode-parasitized samples. Functional pathways related pathogenesis nitrogen fixation enriched plants. In addition, we nifH gene NifH protein, key gene/enzyme involved fixation, within roots, consistent a potential contribution nitrogen-fixing parasitism. Data from further assay soil amendment could reduce both prevalence galling Conclusions demonstrated (1) community variation assembly affected by parasitism; (2) taxonomic association was found (3) change communities through addition fertilizers affect occurrence RKN. Our results provide new insights into interactions microbiota, RKN, plants, contributing novel management against

Language: Английский

Caterpillars lack a resident gut microbiome DOI Open Access
Tobin J. Hammer, Daniel H. Janzen, Winnie Hallwachs

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2017, Volume and Issue: 114(36), P. 9641 - 9646

Published: Aug. 22, 2017

Many animals are inhabited by microbial symbionts that influence their hosts' development, physiology, ecological interactions, and evolutionary diversification. However, firm evidence for the existence functional importance of resident microbiomes in larval Lepidoptera (caterpillars) is lacking, despite fact these insects enormously diverse, major agricultural pests, dominant herbivores many ecosystems. Using 16S rRNA gene sequencing quantitative PCR, we characterized gut wild leaf-feeding caterpillars United States Costa Rica, representing 124 species from 15 families. Compared with other vertebrates assayed using same methods, microbes detected caterpillar guts were unusually low-density variable among individuals. Furthermore, abundance composition leaf-associated reflected feces consuming plants. Thus, ingested food present (although possibly dead or dormant) gut, but host-specific, largely absent. To test whether transient might still contribute to feeding conducted an experiment on field-collected model Manduca sexta Antibiotic suppression bacterial activity did not significantly affect weight gain, survival. The high pH, simple structure, fast transit times typify digestive physiology may prevent colonization. Moreover, host-encoded detoxification mechanisms likely render unnecessary herbivory. Caterpillars illustrate potential benefits independence symbionts, a lifestyle be widespread animals.

Language: Английский

Citations

415
Bacterial Symbionts in Lepidoptera: Their Diversity, Transmission, and Impact on the Host DOI Creative Commons
Luis R. Paniagua Voirol, Enric Frago, Martin Kaltenpoth

et al.

Frontiers in Microbiology, Journal Year: 2018, Volume and Issue: 9

Published: March 27, 2018

The insect´s microbiota is well acknowledged as a "hidden" player influencing essential insect traits. gut microbiome of butterflies and moths (Lepidoptera) has been shown to be highly variable between within species, resulting in controversy on the functional relevance microbes this order. Here, we aim (i) review current knowledge composition microbial communities across Lepidoptera, (ii) elucidate drivers variability lepidopteran microbiome, provide an overview (iii) routes transfer (iv) putative functions Lepidoptera. To find out whether Lepidopterans possess core compared studies from 30 species. Gut bacteria Enterobacteriaceae, Bacillaceae Pseudomonadaceae families were most widespread with Pseudomonas, Bacillus, Staphylococcus, Enterobacter Enterococcus being common genera. Several indicate that habitat, food plant age host can greatly impact which contributes digestion, detoxification, or defense against natural enemies. We mainly focus but also include some examples intracellular endosymbionts. These symbionts are present broad range taxa, known exert different effects their host, mostly including nutrition reproductive manipulation. Only two genera (Wolbachia Spiroplasma) have reported colonize tissues affecting host's reproduction. explore transmission both symbionts, found these may horizontally transmitted through plant, vertically via egg stage. More detailed about plasticity Lepidoptera novel leads for control pest

Language: Английский

Citations

300
The microbiome extends host evolutionary potential DOI Creative Commons
Lucas P. Henry, Marjolein Bruijning, Simon K. G. Forsberg

et al.

Nature Communications, Journal Year: 2021, Volume and Issue: 12(1)

Published: Aug. 26, 2021

Abstract The microbiome shapes many host traits, yet the biology of microbiomes challenges traditional evolutionary models. Here, we illustrate how integrating into quantitative genetics can help untangle complexities host-microbiome evolution. We describe two general ways in which may affect potential: by shifting mean phenotype and changing variance population. synthesize literature across diverse taxa discuss these scenarios could shape response to selection. conclude outlining key avenues research improve our understanding complex interplay between hosts microbiomes.

Language: Английский

Citations

239
The Life of an Insect Endosymbiont from the Cradle to the Grave DOI Creative Commons
John P. McCutcheon, Bret M. Boyd, Colin Dale

et al.

Current Biology, Journal Year: 2019, Volume and Issue: 29(11), P. R485 - R495

Published: June 1, 2019

Language: Английский

Citations

209
Strategies for Enhanced Crop Resistance to Insect Pests DOI
Angela E. Douglas

Annual Review of Plant Biology, Journal Year: 2017, Volume and Issue: 69(1), P. 637 - 660

Published: Nov. 16, 2017

Insect pests are responsible for substantial crop losses worldwide through direct damage and transmission of plant diseases, novel approaches that complement or replace broad-spectrum chemical insecticides will facilitate the sustainable intensification food production in coming decades. Multiple strategies improved resistance to insect pests, especially relating secondary metabolism immunity microbiome science, becoming available. Recent advances metabolic engineering chemistry offer promise specific toxicity deterrence pests; understanding against insects provides routes optimize defenses insects; microbiomes can be exploited, either as a target vehicle delivery insecticidal agents. Implementation these facilitated by ongoing breeding genetic technologies.

Language: Английский

Citations

197
Detoxifying symbiosis: microbe-mediated detoxification of phytotoxins and pesticides in insects DOI
Hideomi Itoh,

Kanako Tago,

Masahito Hayatsu

et al.

Natural Product Reports, Journal Year: 2018, Volume and Issue: 35(5), P. 434 - 454

Published: Jan. 1, 2018

Symbiotic microorganisms degrade natural and artificial toxic compounds, confer toxin resistance on insect hosts.

Language: Английский

Citations

197
Recurrent symbiont recruitment from fungal parasites in cicadas DOI Creative Commons
Yu Matsuura, Minoru Moriyama, Piotr Łukasik

et al.

Proceedings of the National Academy of Sciences, Journal Year: 2018, Volume and Issue: 115(26)

Published: June 11, 2018

Significance Cicadas are dependent on the essential bacterial symbionts Sulcia and Hodgkinia . The symbiont genomes extremely streamlined for provisioning of amino acids other nutrients. In some cicada lineages, fragmented into numerous minicircles, which may represent a critical stage genomic erosion close to collapse. What would happen subsequently? Our survey Japanese diversity revealed that while is conserved among all species, majority them have lost instead harbor yeast-like fungal associates. phylogenetically intermingled with cicada-parasitizing Ophiocordyceps fungi, indicating recurrent replacements by entomopathogens in cicadas providing insights mechanisms underlying parasitism-symbiosis evolutionary continuum, compensation genome erosion, diversification host-symbiont associations.

Language: Английский

Citations

177
The Ecology of Tropical East Asia DOI
Richard T. Corlett

Oxford University Press eBooks, Journal Year: 2019, Volume and Issue: unknown

Published: June 27, 2019

Abstract Tropical East Asia is home to over 1 billion people and faces massive human impacts from its rising population rapid economic growth. It has already lost more than half of forest cover the highest rates deforestation logging in tropics. Hunting trade wildlife products threaten all large many smaller vertebrates. Despite these problems, region still supports an estimated 15–25 per cent global terrestrial biodiversity thus a key focus for conservation. This book therefore deals with plants, animals, ecosystems they inhabit, as well diverse threats their survival options provides background knowledge region’s ecology needed by both specialists non-specialists put own work into broader context. The first edition was describe entire Asian tropics subtropics, southern China western Indonesia, second extended coverage include very similar Northeast India, Bangladesh, Bhutan. third updates contents gives prominence Anthropocene possible conservation responses. accessible style, comprehensive coverage, engaging illustrations make this advanced textbook essential read senior undergraduate graduate-level students studying tropics, authoritative reference professional ecologists, conservationists, interested amateurs worldwide.

Language: Английский

Citations

158
Bacterial and archaeal symbioses with protists DOI Creative Commons
Filip Husník, Daria Tashyreva, Vittorio Boscaro

et al.

Current Biology, Journal Year: 2021, Volume and Issue: 31(13), P. R862 - R877

Published: July 1, 2021

Language: Английский

Citations

116
Role of Insect Gut Microbiota in Pesticide Degradation: A Review DOI Creative Commons
Junaid Ali Siddiqui, Muhammad Musa Khan, Bamisope Steve Bamisile

et al.

Frontiers in Microbiology, Journal Year: 2022, Volume and Issue: 13

Published: May 3, 2022

Insect pests cause significant agricultural and economic losses to crops worldwide due their destructive activities. Pesticides are designed be poisonous intentionally released into the environment combat menace caused by these noxious pests. To survive, insects can resist toxic substances introduced humans in form of pesticides. According recent findings, microbes that live insect as symbionts have recently been found protect hosts against toxins. Symbioses formed between various microbes, a defensive mechanism pathogens Insects’ guts provide unique conditions for microbial colonization, resident bacteria deliver numerous benefits hosts. Insects vary significantly reliance on gut basic functions. digestive tracts very different shape chemical properties, which big impact structure composition community. microbiota has contribute feeding, parasite pathogen protection, immune response modulation, pesticide breakdown. The current review will examine roles detoxification mechanisms behind development resistance better understand detoxifying agriculturally pest insects, we provided comprehensive information regarding role

Language: Английский

Citations

102