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Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance

In natural and agricultural ecosystems, survival and growth of plants depend substantially on residing microbes in the endosphere and rhizosphere. Although numerous studies have reported the presence of plant-growth promoting bacteria and fungi in below-ground biomes, it remains a major challenge to...

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Autores principales: Hori, Yoshie, Fujita, Hiroaki, Hiruma, Kei, Narisawa, Kazuhiko, Toju, Hirokazu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8478078/
https://www.ncbi.nlm.nih.gov/pubmed/34594312
http://dx.doi.org/10.3389/fmicb.2021.713180
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author Hori, Yoshie
Fujita, Hiroaki
Hiruma, Kei
Narisawa, Kazuhiko
Toju, Hirokazu
author_facet Hori, Yoshie
Fujita, Hiroaki
Hiruma, Kei
Narisawa, Kazuhiko
Toju, Hirokazu
author_sort Hori, Yoshie
collection PubMed
description In natural and agricultural ecosystems, survival and growth of plants depend substantially on residing microbes in the endosphere and rhizosphere. Although numerous studies have reported the presence of plant-growth promoting bacteria and fungi in below-ground biomes, it remains a major challenge to understand how sets of microbial species positively or negatively affect plants’ performance. By conducting a series of single- and dual-inoculation experiments of 13 plant-associated fungi targeting a Brassicaceae plant species (Brassica rapa var. perviridis), we here systematically evaluated how microbial effects on plants depend on presence/absence of co-occurring microbes. The comparison of single- and dual-inoculation experiments showed that combinations of the fungal isolates with the highest plant-growth promoting effects in single inoculations did not have highly positive impacts on plant performance traits (e.g., shoot dry weight). In contrast, pairs of fungi with small/moderate contributions to plant growth in single-inoculation contexts showed the greatest effects on plants among the 78 fungal pairs examined. These results on the offset and synergistic effects of pairs of microbes suggest that inoculation experiments of single microbial species/isolates can result in the overestimation or underestimation of microbial functions in multi-species contexts. Because keeping single-microbe systems under outdoor conditions is impractical, designing sets of microbes that can maximize performance of crop plants is an important step for the use of microbial functions in sustainable agriculture.
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spelling pubmed-84780782021-09-29 Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance Hori, Yoshie Fujita, Hiroaki Hiruma, Kei Narisawa, Kazuhiko Toju, Hirokazu Front Microbiol Microbiology In natural and agricultural ecosystems, survival and growth of plants depend substantially on residing microbes in the endosphere and rhizosphere. Although numerous studies have reported the presence of plant-growth promoting bacteria and fungi in below-ground biomes, it remains a major challenge to understand how sets of microbial species positively or negatively affect plants’ performance. By conducting a series of single- and dual-inoculation experiments of 13 plant-associated fungi targeting a Brassicaceae plant species (Brassica rapa var. perviridis), we here systematically evaluated how microbial effects on plants depend on presence/absence of co-occurring microbes. The comparison of single- and dual-inoculation experiments showed that combinations of the fungal isolates with the highest plant-growth promoting effects in single inoculations did not have highly positive impacts on plant performance traits (e.g., shoot dry weight). In contrast, pairs of fungi with small/moderate contributions to plant growth in single-inoculation contexts showed the greatest effects on plants among the 78 fungal pairs examined. These results on the offset and synergistic effects of pairs of microbes suggest that inoculation experiments of single microbial species/isolates can result in the overestimation or underestimation of microbial functions in multi-species contexts. Because keeping single-microbe systems under outdoor conditions is impractical, designing sets of microbes that can maximize performance of crop plants is an important step for the use of microbial functions in sustainable agriculture. Frontiers Media S.A. 2021-09-13 /pmc/articles/PMC8478078/ /pubmed/34594312 http://dx.doi.org/10.3389/fmicb.2021.713180 Text en Copyright © 2021 Hori, Fujita, Hiruma, Narisawa and Toju. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Hori, Yoshie
Fujita, Hiroaki
Hiruma, Kei
Narisawa, Kazuhiko
Toju, Hirokazu
Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance
title Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance
title_full Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance
title_fullStr Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance
title_full_unstemmed Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance
title_short Synergistic and Offset Effects of Fungal Species Combinations on Plant Performance
title_sort synergistic and offset effects of fungal species combinations on plant performance
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8478078/
https://www.ncbi.nlm.nih.gov/pubmed/34594312
http://dx.doi.org/10.3389/fmicb.2021.713180
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AT hirumakei synergisticandoffseteffectsoffungalspeciescombinationsonplantperformance
AT narisawakazuhiko synergisticandoffseteffectsoffungalspeciescombinationsonplantperformance
AT tojuhirokazu synergisticandoffseteffectsoffungalspeciescombinationsonplantperformance