Bacterial biota of forest trees

Pettifor, Bethany J.; McDonald, James E.

doi:10.1016/b978-0-12-822542-4.00019-x

Cited by 2 publications

(2 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both bacterial taxa were found in the w1974 sample. Bacteroides (predominant in w2014) are known as litter-associated bacteria with a broad substrate range [38]. The w2014 samples contained bacteria known to possess lignin-degrading capacities, i.e., Burkholderiaceae and Sphingobacteriacease [39].…”

Section: Discussionmentioning

confidence: 99%

Metagenomic Analysis of the Composition of Microbial Consortia Involved in Spruce Degradation over Time in Białowieża Natural Forest

Janusz,

Mazur,

Pawlik

et al. 2023

Biomolecules

View full text Add to dashboard Cite

Deadwood plays an important role in forest ecology; its degradation and, therefore, carbon assimilation is carried out by fungi and bacteria. To quantify the abundance and distribution of microbial taxa inhabiting dead spruce logs fallen over a span of 50 years and the soil beneath, we used taxonomic profiling with NGS sequencing of hypervariable DNA fragments of ITS1 and 16S V3-V4, respectively. The analysis of sequencing data revealed a high level of diversity in microbial communities participating in the degradation of spruce logs. Differences in the relative abundance of microbial taxa between the samples of the wood that died in 1974 and 2014, and of the soil in its immediate vicinity, were visible, especially at the genus level. Based on the Lefse analysis significantly higher numbers of classified bacterial taxa were observed in the wood and soil samples from 2014 (wood: 1974-18 and 2014-28 taxa; soil: 1974-8 and 2014-41 taxa) while the number of classified fungal taxa was significantly higher in the wood and soil samples from 1974 (wood: 1974-17 and 2014-9 taxa; soil: 1974-57 and 2014-28 taxa). Most of the bacterial and fungal amplicon sequence variants (ASVs) unique to wood were found in the samples from 1974, while those unique to soil were detected in the samples from 2014. The ATR-FTIR method supported by CHN analysis revealed physicochemical changes in deadwood induced by the activity of fungal and bacterial organisms.

show abstract

Section: Discussionmentioning

confidence: 99%

Metagenomic Analysis of the Composition of Microbial Consortia Involved in Spruce Degradation over Time in Białowieża Natural Forest

Janusz,

Mazur,

Pawlik

et al. 2023

Biomolecules

View full text Add to dashboard Cite

show abstract

“…were found in the rhizosphere, endosphere, and root adjoining soil samples. All of this microbiota, in a concerted manner, played essential roles in nutrient acquisition, proper allocation, and recycling within host trees, thus helping maintain their vigor and vitality (Pettifor and McDonald, 2021). Detailed analyses conducted on the belowground microbiota and its effect on tree health using both conventional (community-based physiological fingerprinting methods) and advanced molecular approaches (epifluorescence-based assays and meta-omics techniques), explained multidimensional beneficial roles of belowground microorganisms (Mercado-Blanco et al, 2018).…”

Section: The Role Of the Below-ground Microbiome And Its Potential Fo...mentioning

confidence: 99%

Prospects for deploying microbes against tree-killing beetles (Coleoptera) in Anthropocene

Gupta,

Chakraborty,

Roy

2023

Front. For. Glob. Change

View full text Add to dashboard Cite

Forests form rich biodiversity hubs that act as large reservoirs of natural carbon. The spatial and temporal heterogeneity of these complex habitats of forest floors provides ecological services of immense socio-economic importance. However, these socio-economic ecological hotspots are incessantly exposed to multifarious abiotic, biotic, and anthropogenic disturbances, amongst which unpredictable forest pest (i.e., bark beetle) outbreak account for the loss of vegetation and microbiome of measurable quantum. The importance of the microbiome in forming an inseparable functional unit of every host and shaping its interaction with other partners has been well realized. Interestingly, forest pests, including bark beetles, are also reported to rely on their endosymbiotic microbial partners to manipulate tree defense machinery. In contrast, the microbiome forming the holobiont of trees also regulates the overall function and fitness of the host and significantly contributes to tackling these challenging situations. Nevertheless, how the holobiont of trees directly or indirectly influence beetle holobiont is still an enigma. The present review shall elaborate on the role of microbial tools in enhancing tree performance and fitness, which helps counter beetle damage. Besides, it shall also emphasize exploiting the role of microorganisms in acting as biocontrol agents in shielding the trees against beetle destruction. The application of endosymbiont-mediated RNA interference (RNAi) in working with two-tier specificity for controlling beetle devastations shall be discussed as new-age technological advances. All explanations are expected to put forth the potential of the microbial toolbox in offering better and more sustainable beetle management strategies in the future.

show abstract

Bacterial biota of forest trees

Cited by 2 publications

References 46 publications

Metagenomic Analysis of the Composition of Microbial Consortia Involved in Spruce Degradation over Time in Białowieża Natural Forest

Metagenomic Analysis of the Composition of Microbial Consortia Involved in Spruce Degradation over Time in Białowieża Natural Forest

Prospects for deploying microbes against tree-killing beetles (Coleoptera) in Anthropocene

Contact Info

Product

Resources

About