【🎉Latest accepted article】
Conversion of tropical #SecondaryForests into #RubberPlantations reduces network complexity and diversity of soil #BacterialCommunity

#SoilPhysicochemicalProperties | #SoilBacterialCommunityComposition

https://doi.org/10.1093/jpe/rtaf115

Conversion of tropical secondary forests into rubber plantations reduces network complexity and diversity of soil bacterial community

Abstract. Due to large-scale commercial logging and prolonged anthropogenic disturbances over the past decades, large tropical secondary forests have been

OUP Academic
Will #Pesticide application affect the #LeafPhysiology and leaf associated #BacterialCommunity of #DioeciousPlants? Zuodong Zhu et al. used #PopulusCathayana as an example to assess the impact of λ-cyhalothrin, a broad-spectrum pesticide, on its leaf physiology and phyllosphere bacterial communities.
https://doi.org/10.1093/jpe/rtac084
New publication: Shotgun metagenomic analysis reveals the diversity of PHA producer #bacterialcommunity and PHA synthase gene in Addis Ababa municipal solid #wastedisposal area ‘Qoshe’. #metagenomics #shotgunsequencing
https://doi.org/10.1186/s13213-024-01778-3
Shotgun metagenomic analysis reveals the diversity of PHA producer bacterial community and PHA synthase gene in Addis Ababa municipal solid waste disposal area ‘Qoshe’ - Annals of Microbiology

Background Polyhydroxyalkanoates (PHAs) are naturally produced biopolymers with significant scientific and biotechnological potential. This study aimed to investigate the diversity of the PHA-producing bacterial community and PhaC genes in soil samples collected from a municipal solid waste disposal site known as “Qoshe” in Addis Ababa, Ethiopia, using a shotgun metagenomics approach. The SqueezeMeta pipeline was used to analyze the microbial community in the waste samples. A CD search against the TIGRFAM protein family database was performed to identify the complete-length multidomain sequences of PhaC genes and classify them into their respective classes. Statistical analysis and data visualization were performed using RStudio with R version 4.2.3. Results The findings of this study suggest that known and unknown taxa likely contribute to the phaC genes of municipal solid waste. Taxonomic profiling of the metagenomic data revealed that the majority of the PHA-producing taxa belonged to the phylum Proteobacteria (80%), followed by Actinomycetota (16.5%). Furthermore, this study identified Thiomonas and unclassified Mycobacterium as the main contributors to class I PhaC genes. Class II PhaC genes are predominantly associated with the Pseudomonadaceae family, followed by unclassified Hyphomicrobials and Acidimicrobiales. Class III PhaC genes are abundantly related to the Methylococcaceae family, specifically the Methylocaldum genus. The analysis of PhaC gene sequences revealed high level of diversity, with a significant proportion of putative PhaC genes exhibiting low sequence identity with each other and PhaC gene in the database. Notably, the sequence variation observed within the same PhaC gene classes suggests the potential presence of previously unidentified PhaC gene variants. Conclusions Overall, this research improves our understanding of the diversity of PHA-producing taxa and PhaC genes in municipal solid waste environments, providing opportunities for sustainable PHA production and waste management strategies. However, additional studies, including the isolation and characterization of specific strains, are necessary to confirm the PHA production capabilities of these strains and explore their biotechnological potential.

BioMed Central
.@EllinorAlseth @sambrownlab @edzewestra &co show how #phage impact structure & dynamics of a 4-species #BacterialCommunity, allowing competitive release of the strongest sp, helping to maintain diversity & preventing reinvasion of target sp. #PLOSBiology https://plos.io/49OSE9i
The impact of phage and phage resistance on microbial community dynamics

Phages shape the microbial world. This study uses an evolution experiment to explore how phage impact the structure and dynamics of a four-species bacterial community, finding that phage enables competitive release of the strongest competitor, helps maintain community diversity and prevents reinvasion of the target species.