Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)

Humans can potentially be exposed to <i>Enterocytozoon bieneusi</i> and <i>Encephalitozoon</i> spp. from topsoils when playing or spending time in recreational areas. Two hundred and seventy-seven topsoil samples were collected across Alcalá de Henares (Spain) in July 2017: o...

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Main Authors: Antonio Peña-Fernández, Manuel Higueras, María del Carmen Lobo-Bedmar, Fernando Izquierdo, Umar Anjum
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Biology and Life Sciences Forum
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Online Access:https://www.mdpi.com/2673-9976/31/1/5
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author Antonio Peña-Fernández
Manuel Higueras
María del Carmen Lobo-Bedmar
Fernando Izquierdo
Umar Anjum
author_facet Antonio Peña-Fernández
Manuel Higueras
María del Carmen Lobo-Bedmar
Fernando Izquierdo
Umar Anjum
author_sort Antonio Peña-Fernández
collection DOAJ
description Humans can potentially be exposed to <i>Enterocytozoon bieneusi</i> and <i>Encephalitozoon</i> spp. from topsoils when playing or spending time in recreational areas. Two hundred and seventy-seven topsoil samples were collected across Alcalá de Henares (Spain) in July 2017: one hundred and fifty-five urban, sixty industrial and twelve from a public garden. Simultaneous detection was performed using a SYBR Green real-time PCR following the appropriate extraction of DNA with Fast-Prep for Soil<sup>®</sup>. The organic matter content (OM), pH, electrical conductivity (EC) and soil texture (percentages of sand, clay and silt) were also determined. <i>E. bieneusi</i> was detected in nine (five urban, four industrial); meanwhile, <i>Encephalitozoon</i> spp. was detected in 22 topsoil samples (sixteen urban, six industrial; ten <i>E. intestinalis,</i> nine <i>E. intestinalis/E. hellem</i> and three <i>E. cuniculi</i>). The presence of <i>E. bieneusi</i> was associated with urban soils that presented lower EC (0.50 vs. 0.71 dS/m; <i>p</i>-value = 0.0110), as this factor may provide a richer environment for the survival of spores. The presence of microsporidian spores was higher in those topsoils with a higher OM content for <i>E. bieneusi</i> (6.96% vs. 4.98%; <i>p</i>-value = 0.0342) and <i>E. intestinalis</i>/<i>E. hellem</i> in one of the four quadrants into which the urban area was divided (5.54% vs. 3.12%; <i>p</i>-value = 0.0007). <i>E. intestinalis</i> is present in industrial topsoils with significantly lower contents of sand (14.5% vs. 21.74; <i>p</i>-value = 0.00003) but higher contents of silt (78.5% vs. 64.9%; <i>p</i>-value = 0.0229), which might be attributed to the differences in the capacity of topsoils to retain moisture, depending on their texture. Moreover, the provision of enough oxygen might play a role in the higher presence of <i>E. intestinalis/E. hellem</i> in urban topsoils with lower contents of clay (11% vs. 19%; <i>p</i>-value = 0.0200). A better understanding of these potential associations is critical in selecting appropriate decontamination techniques and strategies to prevent and minimise human exposure.
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spelling doaj-art-c20a15f14105467991d938f53da811b32025-08-20T02:55:44ZengMDPI AGBiology and Life Sciences Forum2673-99762023-11-01311510.3390/ECM2023-16461Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)Antonio Peña-Fernández0Manuel Higueras1María del Carmen Lobo-Bedmar2Fernando Izquierdo3Umar Anjum4Department of Surgery, Medical and Social Sciences, Faculty of Medicine and Health Sciences, University of Alcalá, Ctra. Madrid-Barcelona, Km. 33.600, 28871 Alcalá de Henares, SpainScientific Computation & Technological Innovation Center (SCoTIC), Universidad de La Rioja, 26004 Logroño, SpainDepartamento de Investigación Agroambiental, IMIDRA, Finca el Encín, Crta. Madrid-Barcelona Km, 38.2, 28800 Alcalá de Henares, SpainFacultad de Farmacia, Universidad San Pablo-CEU, CEU Universities, Urbanización Montepríncipe, 28660 Boadilla del Monte, SpainLeicester School of Allied Health Sciences, De Montfort University, Leicester LE1 9BH, UKHumans can potentially be exposed to <i>Enterocytozoon bieneusi</i> and <i>Encephalitozoon</i> spp. from topsoils when playing or spending time in recreational areas. Two hundred and seventy-seven topsoil samples were collected across Alcalá de Henares (Spain) in July 2017: one hundred and fifty-five urban, sixty industrial and twelve from a public garden. Simultaneous detection was performed using a SYBR Green real-time PCR following the appropriate extraction of DNA with Fast-Prep for Soil<sup>®</sup>. The organic matter content (OM), pH, electrical conductivity (EC) and soil texture (percentages of sand, clay and silt) were also determined. <i>E. bieneusi</i> was detected in nine (five urban, four industrial); meanwhile, <i>Encephalitozoon</i> spp. was detected in 22 topsoil samples (sixteen urban, six industrial; ten <i>E. intestinalis,</i> nine <i>E. intestinalis/E. hellem</i> and three <i>E. cuniculi</i>). The presence of <i>E. bieneusi</i> was associated with urban soils that presented lower EC (0.50 vs. 0.71 dS/m; <i>p</i>-value = 0.0110), as this factor may provide a richer environment for the survival of spores. The presence of microsporidian spores was higher in those topsoils with a higher OM content for <i>E. bieneusi</i> (6.96% vs. 4.98%; <i>p</i>-value = 0.0342) and <i>E. intestinalis</i>/<i>E. hellem</i> in one of the four quadrants into which the urban area was divided (5.54% vs. 3.12%; <i>p</i>-value = 0.0007). <i>E. intestinalis</i> is present in industrial topsoils with significantly lower contents of sand (14.5% vs. 21.74; <i>p</i>-value = 0.00003) but higher contents of silt (78.5% vs. 64.9%; <i>p</i>-value = 0.0229), which might be attributed to the differences in the capacity of topsoils to retain moisture, depending on their texture. Moreover, the provision of enough oxygen might play a role in the higher presence of <i>E. intestinalis/E. hellem</i> in urban topsoils with lower contents of clay (11% vs. 19%; <i>p</i>-value = 0.0200). A better understanding of these potential associations is critical in selecting appropriate decontamination techniques and strategies to prevent and minimise human exposure.https://www.mdpi.com/2673-9976/31/1/5microsporidiaurban topsoilsphysicochemical propertiessoil texturerisksAlcalá de Henares
spellingShingle Antonio Peña-Fernández
Manuel Higueras
María del Carmen Lobo-Bedmar
Fernando Izquierdo
Umar Anjum
Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)
Biology and Life Sciences Forum
microsporidia
urban topsoils
physicochemical properties
soil texture
risks
Alcalá de Henares
title Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)
title_full Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)
title_fullStr Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)
title_full_unstemmed Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)
title_short Presence and Distribution of Human-Related Microsporidian Spores across Different Topsoil Areas across Alcalá de Henares (Spain)
title_sort presence and distribution of human related microsporidian spores across different topsoil areas across alcala de henares spain
topic microsporidia
urban topsoils
physicochemical properties
soil texture
risks
Alcalá de Henares
url https://www.mdpi.com/2673-9976/31/1/5
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