DOI: 10.1016/j.atmosenv.2019.117183
论文题名: Characterization of culturable airborne microorganisms in the Yucatan Peninsula
作者: Rodriguez-Gomez C. ; Ramirez-Romero C. ; Cordoba F. ; Raga G.B. ; Salinas E. ; Martinez L. ; Rosas I. ; Quintana E.T. ; Maldonado L.A. ; Rosas D. ; Amador T. ; Alvarez H. ; Ladino L.A.
刊名: Atmospheric Environment
ISSN: 1352-2310
出版年: 2020
卷: 223 语种: 英语
英文关键词: Fungi
; Microbiology
; Tropics
; Airborne
; Airborne microorganisms
; Bioaerosols
; Me-xico
; Meteorological condition
; Relative concentration
; Terrestrial influence
; Yucatan
; Bacteria
; aerosol composition
; air sampling
; bacterium
; concentration (composition)
; fungus
; microorganism
; particulate matter
; rural atmosphere
; seasonality
; Actinobacteria
; airborne microorganism
; article
; Aspergillus
; city
; Cladosporium
; cold stress
; colony forming unit
; Firmicutes
; meteorology
; microbiology
; microflora
; nonhuman
; Penicillium
; phylum
; propagule
; Proteobacteria
; seashore
; seasonal variation
; sisal
; stain
; Yucatan
; Merida [Yucatan]
; Mexico [North America]
; Sisal
; Yucatan
; Yucatan Peninsula
; Actinobacteria
; Agave sisalana
; Aspergillus
; Bacteria (microorganisms)
; Cladosporium
; Firmicutes
; Fungi
; Negibacteria
; Penicillium
; Posibacteria
; Proteobacteria
学科: Airborne
; Bacteria
; Bioaerosol
; Fungi
; Mexico
; Microbiology
; Yucatan
中文摘要: The concentration of biological particles in the atmosphere is widely variable because it depends on several meteorological and geographical factors. Meteorological conditions in tropical coastal cities are unique due to both marine and terrestrial influences that can strongly modify the concentration and diversity of airborne microorganisms. Nevertheless, very few studies have been conducted in tropical coastal cities. This study presents the comparative results from four field campaigns carried out between 2017 and 2018 in two tropical cities located in the Yucatan Peninsula (Mexico): Sisal (a village right on the coast) and Merida (the State capital, 48 km from the coastline). The concentration of bacteria and fungal propagules, in colony-forming units or CFU per m3, sampled in Merida and Sisal are not comparable despite their proximity (i.e., 48 km away); however, both show similar seasonality and inter-annual trends. The results indicate that terrestrial microbiota dominates over that of marine origin, and show that fungal propagules are the dominant microorganism present at both sites. Also, these results indicate that meteorological conditions in the rainy season are more favorable for the growth of microorganisms than dry cold conditions. The predominant culturable bacterial phylum sampled during the four field campaigns carried out in 2017 and 2018 in the Yucatan Peninsula were Actinobacteria, Firmicutes, and Proteobacteria. The fraction of bacteria that reacted to a Gram positive stain was 62% and to Gram negative 38%. The fungal propagules genera relative concentration varied between both sampling sites, with Cladosporium and Penicillium being the most common at the coast in Sisal and Aspergillus in Merida. © 2019 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/161035
Appears in Collections: 气候变化与战略
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作者单位: Centro de Ciencias de La Atmosfera, Universidad Nacional Autónoma de México, Mexico City, Mexico; Posgrado en Ciencias de La Tierra, Universidad Nacional Autónoma de México, Mexico City, Mexico; Posgrado en Ciencias Químicas, Universidad Nacional Autónoma de México, Mexico City, Mexico; Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional, Mexico City, Mexico; Facultad de Química, Universidad Nacional Autónoma de México, Mexico City, Mexico; Facultad de Química, Universidad Autónoma de Yucatán, Mérida, Mexico; Facultad de Ciencias, Universidad Nacional Autónoma de México, Mexico City, Mexico
Recommended Citation:
Rodriguez-Gomez C.,Ramirez-Romero C.,Cordoba F.,et al. Characterization of culturable airborne microorganisms in the Yucatan Peninsula[J]. Atmospheric Environment,2020-01-01,223