Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments
Two 915-MHz microwave treatments (2 kW-8 min and 4 kW-4 min) were applied to soil and their effects were monitored just after treatments (T0) and 26 days (T26) in soil microcosms. Densities of culturable bacteria, fluorescent pseudomonads and nematodes, hydrolysis activity and soil DNA content declined by over 50% immediately after both microwave treatments (T0), excluding the total fungal 18S rRNA (−13 or −17%) and bacterial 16S rRNA copies (non-significant). A rapid shift in bacterial community composition occurred from T0 towards a large increase in the relative abundance of Firmicutes (+1650%) and a concomitant decrease in various phyla (e.g. Acidobacteria, Actinobacteria, Bacteroidetes, Proteobacteria) from −85 to −61%. At T26 and for both treatments, fluorescein diacetate hydrolysis, density of culturable bacteria, 18S rRNA gene numbers, Simpson diversity, relative abundances of Bacteroidetes and Proteobacteria regained levels similar to controls. Alpha, Delta and Gamma classes Proteobacteria also end up reaching a similar level. In contrast, fluorescent pseudomonad density, nematode diversity and abundance, soil DNA content and relative abundances of some phylum (Acidobacteria, Actinobacteria, Chloroflexi) did not increase in such proportions. Most of the soil biological properties have not been permanently impacted. Nevertheless, the recovery kinetics highly differed according properties, with resilience indices at T26 varying from −87 to +99%.
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Language: | eng |
Subjects: | biologie du sol, biodiversité, Bacteria, propriété biologique, traitement aux micro-ondes, fluorescence, hydrolyse, activité biologique dans le sol, adn, densité, http://aims.fao.org/aos/agrovoc/c_7160, http://aims.fao.org/aos/agrovoc/c_33949, http://aims.fao.org/aos/agrovoc/c_765, http://aims.fao.org/aos/agrovoc/c_1501, http://aims.fao.org/aos/agrovoc/c_28461, http://aims.fao.org/aos/agrovoc/c_10935, http://aims.fao.org/aos/agrovoc/c_24940, http://aims.fao.org/aos/agrovoc/c_9264, http://aims.fao.org/aos/agrovoc/c_2347, http://aims.fao.org/aos/agrovoc/c_2186, http://aims.fao.org/aos/agrovoc/c_3081, |
Online Access: | http://agritrop.cirad.fr/603414/ http://agritrop.cirad.fr/603414/1/s00374-021-01553-5.pdf |
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dig-cirad-fr-6034142024-01-29T05:51:14Z http://agritrop.cirad.fr/603414/ http://agritrop.cirad.fr/603414/ Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments. Maynaud Géraldine, Baudoin Ezékiel, Mahé Frédéric, Villenave Cécile, Cleyet-Marel Jean-Claude, Brunel Béatrice. 2021. Biology and Fertility of Soils, 57 (5) : 603-616.https://doi.org/10.1007/s00374-021-01553-5 <https://doi.org/10.1007/s00374-021-01553-5> Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments Maynaud, Géraldine Baudoin, Ezékiel Mahé, Frédéric Villenave, Cécile Cleyet-Marel, Jean-Claude Brunel, Béatrice eng 2021 Biology and Fertility of Soils biologie du sol biodiversité Bacteria propriété biologique traitement aux micro-ondes fluorescence hydrolyse activité biologique dans le sol adn densité http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_1501 http://aims.fao.org/aos/agrovoc/c_28461 http://aims.fao.org/aos/agrovoc/c_10935 http://aims.fao.org/aos/agrovoc/c_24940 http://aims.fao.org/aos/agrovoc/c_9264 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_2186 France http://aims.fao.org/aos/agrovoc/c_3081 Two 915-MHz microwave treatments (2 kW-8 min and 4 kW-4 min) were applied to soil and their effects were monitored just after treatments (T0) and 26 days (T26) in soil microcosms. Densities of culturable bacteria, fluorescent pseudomonads and nematodes, hydrolysis activity and soil DNA content declined by over 50% immediately after both microwave treatments (T0), excluding the total fungal 18S rRNA (−13 or −17%) and bacterial 16S rRNA copies (non-significant). A rapid shift in bacterial community composition occurred from T0 towards a large increase in the relative abundance of Firmicutes (+1650%) and a concomitant decrease in various phyla (e.g. Acidobacteria, Actinobacteria, Bacteroidetes, Proteobacteria) from −85 to −61%. At T26 and for both treatments, fluorescein diacetate hydrolysis, density of culturable bacteria, 18S rRNA gene numbers, Simpson diversity, relative abundances of Bacteroidetes and Proteobacteria regained levels similar to controls. Alpha, Delta and Gamma classes Proteobacteria also end up reaching a similar level. In contrast, fluorescent pseudomonad density, nematode diversity and abundance, soil DNA content and relative abundances of some phylum (Acidobacteria, Actinobacteria, Chloroflexi) did not increase in such proportions. Most of the soil biological properties have not been permanently impacted. Nevertheless, the recovery kinetics highly differed according properties, with resilience indices at T26 varying from −87 to +99%. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/603414/1/s00374-021-01553-5.pdf text Cirad license info:eu-repo/semantics/restrictedAccess https://agritrop.cirad.fr/mention_legale.html https://doi.org/10.1007/s00374-021-01553-5 10.1007/s00374-021-01553-5 info:eu-repo/semantics/altIdentifier/doi/10.1007/s00374-021-01553-5 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1007/s00374-021-01553-5 |
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biologie du sol biodiversité Bacteria propriété biologique traitement aux micro-ondes fluorescence hydrolyse activité biologique dans le sol adn densité http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_1501 http://aims.fao.org/aos/agrovoc/c_28461 http://aims.fao.org/aos/agrovoc/c_10935 http://aims.fao.org/aos/agrovoc/c_24940 http://aims.fao.org/aos/agrovoc/c_9264 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_3081 biologie du sol biodiversité Bacteria propriété biologique traitement aux micro-ondes fluorescence hydrolyse activité biologique dans le sol adn densité http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_1501 http://aims.fao.org/aos/agrovoc/c_28461 http://aims.fao.org/aos/agrovoc/c_10935 http://aims.fao.org/aos/agrovoc/c_24940 http://aims.fao.org/aos/agrovoc/c_9264 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_3081 |
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biologie du sol biodiversité Bacteria propriété biologique traitement aux micro-ondes fluorescence hydrolyse activité biologique dans le sol adn densité http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_1501 http://aims.fao.org/aos/agrovoc/c_28461 http://aims.fao.org/aos/agrovoc/c_10935 http://aims.fao.org/aos/agrovoc/c_24940 http://aims.fao.org/aos/agrovoc/c_9264 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_3081 biologie du sol biodiversité Bacteria propriété biologique traitement aux micro-ondes fluorescence hydrolyse activité biologique dans le sol adn densité http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_1501 http://aims.fao.org/aos/agrovoc/c_28461 http://aims.fao.org/aos/agrovoc/c_10935 http://aims.fao.org/aos/agrovoc/c_24940 http://aims.fao.org/aos/agrovoc/c_9264 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_3081 Maynaud, Géraldine Baudoin, Ezékiel Mahé, Frédéric Villenave, Cécile Cleyet-Marel, Jean-Claude Brunel, Béatrice Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments |
description |
Two 915-MHz microwave treatments (2 kW-8 min and 4 kW-4 min) were applied to soil and their effects were monitored just after treatments (T0) and 26 days (T26) in soil microcosms. Densities of culturable bacteria, fluorescent pseudomonads and nematodes, hydrolysis activity and soil DNA content declined by over 50% immediately after both microwave treatments (T0), excluding the total fungal 18S rRNA (−13 or −17%) and bacterial 16S rRNA copies (non-significant). A rapid shift in bacterial community composition occurred from T0 towards a large increase in the relative abundance of Firmicutes (+1650%) and a concomitant decrease in various phyla (e.g. Acidobacteria, Actinobacteria, Bacteroidetes, Proteobacteria) from −85 to −61%. At T26 and for both treatments, fluorescein diacetate hydrolysis, density of culturable bacteria, 18S rRNA gene numbers, Simpson diversity, relative abundances of Bacteroidetes and Proteobacteria regained levels similar to controls. Alpha, Delta and Gamma classes Proteobacteria also end up reaching a similar level. In contrast, fluorescent pseudomonad density, nematode diversity and abundance, soil DNA content and relative abundances of some phylum (Acidobacteria, Actinobacteria, Chloroflexi) did not increase in such proportions. Most of the soil biological properties have not been permanently impacted. Nevertheless, the recovery kinetics highly differed according properties, with resilience indices at T26 varying from −87 to +99%. |
format |
article |
topic_facet |
biologie du sol biodiversité Bacteria propriété biologique traitement aux micro-ondes fluorescence hydrolyse activité biologique dans le sol adn densité http://aims.fao.org/aos/agrovoc/c_7160 http://aims.fao.org/aos/agrovoc/c_33949 http://aims.fao.org/aos/agrovoc/c_765 http://aims.fao.org/aos/agrovoc/c_1501 http://aims.fao.org/aos/agrovoc/c_28461 http://aims.fao.org/aos/agrovoc/c_10935 http://aims.fao.org/aos/agrovoc/c_24940 http://aims.fao.org/aos/agrovoc/c_9264 http://aims.fao.org/aos/agrovoc/c_2347 http://aims.fao.org/aos/agrovoc/c_2186 http://aims.fao.org/aos/agrovoc/c_3081 |
author |
Maynaud, Géraldine Baudoin, Ezékiel Mahé, Frédéric Villenave, Cécile Cleyet-Marel, Jean-Claude Brunel, Béatrice |
author_facet |
Maynaud, Géraldine Baudoin, Ezékiel Mahé, Frédéric Villenave, Cécile Cleyet-Marel, Jean-Claude Brunel, Béatrice |
author_sort |
Maynaud, Géraldine |
title |
Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments |
title_short |
Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments |
title_full |
Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments |
title_fullStr |
Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments |
title_full_unstemmed |
Temporal recovery of soil biological activity and diversity after 915-MHz microwave treatments |
title_sort |
temporal recovery of soil biological activity and diversity after 915-mhz microwave treatments |
url |
http://agritrop.cirad.fr/603414/ http://agritrop.cirad.fr/603414/1/s00374-021-01553-5.pdf |
work_keys_str_mv |
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