Agricultural practices drive biological loads, seasonal patterns and potential pathogens in the aerobiome of a mixed-land-use dryland

Finn, Damien; Maldonado, Juan; Martini, Francesca; Yu, Julian; Penton, C. Ryan; Fontenele, Rafaela S.; Schmidlin, Kara; Kraberger, Simona; Varsani, Arvind; Gile, Gillian H.; Barker, Bridget; Kollath, Daniel R.; Muenich, Rebecca Logsdon; Herckès, Pierre; Fraser, Michelle; García-Pichel, Ferrán

doi:10.1016/j.scitotenv.2021.149239

Cited by 19 publications

(8 citation statements)

References 63 publications

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“…Wigfec virus K19_469 (OP549795) is most similar to Genomoviridae sp. D2_1183 (MW678959), isolated from dust particles in Arizona [ 60 ], which is not classified at a species level sharing 98% genome-wide nucleotide pairwise identity and 100% Rep amino acid identity ( Table 3 ). Given this virus was also detected in Arizona, it may be that it infects a commonly detected fungus in Arizona.…”

Section: Resultsmentioning

confidence: 99%

“…The Rep of wigfec virus K19_571 (OP549840) clusters with the Reps of five viruses in Cluster C share ~46–64% amino acid identity, and it is most closely related to that of Virus sp. isolate D12_1244 (MW678878) [ 60 ]. The Reps of wigfec virus K19_593 (OP549841), wigfec virus K19_558 (OP549838), and wigfec virus K19_432 (OP549819) are part of Clusters D, E, and F, respectively ( Figure 6 and Figure 7 ).…”

Section: Resultsmentioning

confidence: 99%

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Diverse Small Circular DNA Viruses Identified in an American Wigeon Fecal Sample

Olivo,

Khalifeh,

Custer

et al. 2024

Microorganisms

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American wigeons (Mareca americana) are waterfowls that are widely distributed throughout North America. Research of viruses associated with American wigeons has been limited to orthomyxoviruses, coronaviruses, and circoviruses. To address this poor knowledge of viruses associated with American wigeons, we undertook a pilot study to identify small circular DNA viruses in a fecal sample collected in January 2021 in the city of Tempe, Arizona (USA). We identified 64 diverse circular DNA viral genomes using a viral metagenomic workflow biased towards circular DNA viruses. Of these, 45 belong to the phylum Cressdnaviricota based on their replication-associated protein sequence, with 3 from the Genomoviridae family and the remaining 42 which currently cannot be assigned to any established virus group. It is most likely that these 45 viruses infect various organisms that are associated with their diet or environment. The remaining 19 virus genomes are part of the Microviridae family and likely associated with the gut enterobacteria of American wigeons.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Diverse Small Circular DNA Viruses Identified in an American Wigeon Fecal Sample

Olivo,

Khalifeh,

Custer

et al. 2024

Microorganisms

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“…The findings suggested that Actinobacteria, particularly in CCS and CGS, promoted MBC degradation and DOC production. Micrococcaceae is a common family of Actinobacteria that can resist adverse soil environments due to its degradation capability [ 49 ]; its marked association with MBC content indicated the substantial depletion of microbial-derived C. Therefore, microorganisms in the converted soil were in a “hungry” state. Gamboa et al [ 50 ] reported that land use change from regeneration to reforestation significantly reduced MBC content and microbial activities.…”

Section: Resultsmentioning

confidence: 99%

“…Moreover, DOC, LFOC, and LFON were significantly and negatively correlated with most functional genes involved in the biosynthesis and generation of precursor, metabolite, and energy (such as electron transfer). The findings might suggest that contents of the C and N fractions can regulate bacterial functional activities [ 49 ]. Positive correlations between DOC, LFOC, LFON, and bacterial degradation activities provided additional evidence that they had numerous microbial degraded products.…”

Section: Resultsmentioning

confidence: 99%

Soil organic carbon fraction accumulation and bacterial characteristics in curtilage soil: Effects of land conversion and land use

Cao

Liu

et al. 2023

PLoS ONE

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Conversion of curtilage land into cropland or grassland can have substantial effects on soil nutrition and microbial activities; however, these effects remain ambiguous. This is the first study to compare the soil organic carbon (SOC) fractions and bacterial communities in rural curtilage, converted cropland, and grassland compared with cropland and grassland. This study determined the light fraction (LF) and heavy fraction (HF) of organic carbon (OC), dissolved organic carbon (DOC), microbial biomass carbon (MBC), and the microbial community structure by conducting a high-throughput analysis. Curtilage soil had significantly lower OC content, the DOC, MBC, LFOC and HFOC of grassland and cropland soils were 104.11%, 55.58%, 264.17%, and 51.04% higher than curtilage soil averagely. Cropland showed notably high bacterial richness and diversity, with Proteobacteria (35.18%), Actinobacteria (31.48%), and Chloroflexi (17.39%) predominating in cropland, grassland, and curtilage soil, respectively. Moreover, DOC and LFOC contents of converted cropland and grassland soils were 47.17% and 148.65% higher than curtilage soil while MBC content was 46.24% lower than curtilage soil averagely. Land conversion showed more significant effects on microbial composition than land-use differences. The abundant Actinobacteria and Micrococcaceae population and the low MBC contents indicated a “hungry” bacterial state in the converted soil, whereas the high MBC content, Acidobacteria proportion, and relative abundance of functional genes in the fatty acid and lipid biosynthesis indicated a “fat” bacterial state in cropland. This study contributes to the improvement of soil fertility and the comprehension and efficient use of curtilage soil.

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“…Sprigg et al (2014) suggest that confidence in dust storm-Valley fever links will require more detailed disease surveillance. Until recently, the ability to detect Coccidioides at low abundance in environmental samples has been difficult and time-consuming (Chow et al, 2017;Finn et al, 2021), with low throughput (Barker et al, 2012). In addition, although hotspots of Coccidioides in the soils of Arizona and California have been mapped, more comprehensive sampling across space, time, and climates is required for adequate description of its climatic parameters (Finn et al, 2021;Lauer et al, 2020).…”

Section: Valley Fevermentioning

confidence: 99%

Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond

Tong

Gill

Sprigg

et al. 2023

Reviews of Geophysics

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Risks associated with dust hazards are often underappreciated, a gap between the knowledge pool and public awareness that can be costly for impacted communities. This study reviews the emission sources and chemical, physical, and biological characteristics of airborne soil particles (dust) and their effects on human and environmental health and safety in the Pan‐American region. American dust originates from both local sources (western United States, northern Mexico, Peru, Bolivia, Chile, and Argentina) and long‐range transport from Africa and Asia. Dust properties, as well as the trends and interactions with criteria air pollutants, are summarized. Human exposure to dust is associated with adverse health effects, including asthma, allergies, fungal infections, and premature death. In the Americas, a well‐documented and striking effect of soil dust is its association with Coccidioidomycosis, commonly known as Valley fever, an infection caused by inhalation of soil‐dwelling fungi unique to this region. Besides human health, dust affects environmental health through nutrients that increase phytoplankton biomass, contaminants that diminish water supply and affect food (crops/fruits/vegetables and ready‐to‐eat meat), spread crop and marine pathogens, cause Valley fever among domestic and wild animals, transport heavy metals, radionuclides and microplastics, and reduce solar and wind power generation. Dust is also a safety hazard to road transportation and aviation, in the southwestern US where blowing dust is one of the deadliest weather hazards. To mitigate the harmful effects, coordinated regional and international efforts are needed to enhance dust observations and prediction capabilities, soil conservation measures, and Valley fever and other disease surveillance.

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Agricultural practices drive biological loads, seasonal patterns and potential pathogens in the aerobiome of a mixed-land-use dryland

Cited by 19 publications

References 63 publications

Diverse Small Circular DNA Viruses Identified in an American Wigeon Fecal Sample

Diverse Small Circular DNA Viruses Identified in an American Wigeon Fecal Sample

Soil organic carbon fraction accumulation and bacterial characteristics in curtilage soil: Effects of land conversion and land use

Health and Safety Effects of Airborne Soil Dust in the Americas and Beyond

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