Abstract
Abstract The addition of organic amendments contributes substantially to improvements in soil quality and prevents soil degradation. However, very little is known about the responses of dominant fungal strains to organic fertilizers or their functions in the nutrient transformations and crop growth promotion. Here, soils and maize roots were collected from a 35‐year field experiment treated with composted soybean cake. The fungal communities in the bulk soil, rhizosphere, and endosphere were analyzed by deep amplicon sequencing of the internal transcribed spacer region gene. Overall, the soil fungal community was dominated by the phyla Ascomycota, Basidiomycota, and Zygomycota. Organic amendments changed the fungal community composition, with significant increase in the relative abundances of Mortierella , Fusarium , and Chaetomiceae in the bulk and rhizosphere soils. Mortierella elongata was the most successful fungi responding to organic inputs as seen by the surge in abundance. Genome characteristics of M. elongata indicated that M. elongata possessed the functional capacity to degrade a range of toxic organics, and thereby improve soil health. Furthermore, M. elongata 's capacity to compose recalcitrant substances that can contribute to pools of long‐term stable SOM was confirmed. These findings suggest that M. elongata may be mechanistic in sequestering C in soil. Inoculations of M. elongata into soil significantly increased the levels of plant indole acetic acid and plant biomass. Soil phosphatase and β‐glucosidase activities were also improved. Our study suggests that M. elongata can defend against soil degradation, improve soil health, and stimulate production of plant growth hormones.
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Claims 6
Claim · model-written summary
Organic amendments increased Mortierella, Fusarium and Chaetomiceae abundance in bulk and rhizosphere soils.
- Treatment
- Organic amendmentse0
- Outcome
- relative abundances of Mortierella , Fusarium , and Chaetomiceaee0
- Direction
- increasee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Organic amendments changed the fungal community composition, with significant increase in the relative abundances of Mortierella , Fusarium , and Chaetomiceae in the bulk and rhizosphere soils.”
e1“maize roots”
Claim · model-written summary
Mortierella elongata had the strongest abundance response to organic inputs.
- Taxon
- Mortierella elongata
Linnemannia elongatae0 - Treatment
- organic inputse0
- Outcome
- abundancee0
- Direction
- surgee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mortierella elongata was the most successful fungi responding to organic inputs as seen by the surge in abundance.”
Claim · model-written summary
The M. elongata genome indicated capacity to degrade toxic organics.
- Taxon
- M. elongataLinnemannia elongatae0
- Outcome
- functional capacity to degrade a range of toxic organicse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Genome characteristics of M. elongata indicated that M. elongata possessed the functional capacity to degrade a range of toxic organics”
Claim · model-written summary
M. elongata was confirmed to compose recalcitrant substances contributing to stable soil organic matter.
- Taxon
- M. elongataLinnemannia elongatae0
- Outcome
- capacity to compose recalcitrant substancese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“M. elongata 's capacity to compose recalcitrant substances that can contribute to pools of long‐term stable SOM was confirmed.”
Claim · model-written summary
M. elongata inoculation significantly increased plant indole acetic acid.
- Treatment
- Inoculations of M. elongata into soile0
- Interactor
- M. elongataLinnemannia elongatae0symbiont
- Outcome
- levels of plant indole acetic acide0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculations of M. elongata into soil significantly increased the levels of plant indole acetic acid and plant biomass.”
e1“maize roots”
Claim · model-written summary
M. elongata inoculation significantly increased plant biomass.
- Treatment
- Inoculations of M. elongata into soile0
- Interactor
- M. elongataLinnemannia elongatae0symbiont
- Outcome
- plant biomasse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculations of M. elongata into soil significantly increased the levels of plant indole acetic acid and plant biomass.”
e1“maize roots”
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