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Landuse affects the likelihood of soil colonization by a key plant pathogen.

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Title: Landuse affects the likelihood of soil colonization by a key plant pathogen.
Authors: Lyons, Rebecca1 (AUTHOR), Clarke, Anna-Belle C.1 (AUTHOR), Lapis-Gaza, Hazel R.2 (AUTHOR), Sun, Jiarui1 (AUTHOR), Birt, Henry W.G.1 (AUTHOR), Pattison, Anthony B.1,2 (AUTHOR), Dennis, Paul G.1 (AUTHOR) p.dennis@uq.edu.au
Source: Agriculture, Ecosystems & Environment. Nov2025, Vol. 393, pN.PAG-N.PAG. 1p.
Subject Terms: *Soil biodiversity, *Infectious disease transmission, *Land cover, *Soil management, *Biosecurity, Fusarium, Phytopathogenic microorganisms, Wet Tropics of Queensland World Heritage Area (Qld.)
Abstract: Fencing and other biosecurity measures can help to reduce the spread of soil-borne pathogens, but are often compromised by weather, animals and insects. Once contaminated soil spreads beyond a farm, neighbouring land can either help or hinder pathogen dispersal based on its susceptibility to colonization. Fusarium wilt of banana, caused by the soil-borne pathogen Fusarium oxysporum f. sp. cubense (Foc), poses a serious threat to global banana production. In the Wet Tropics Region of Queensland, where most of Australia's bananas are grown, we found that banana production land is mostly bordered by rainforest, grassland, and sugarcane production areas. In soil inoculation experiments using quantitative PCR, we found that Foc was highly likely to colonize banana soils, moderately likely to colonize sugarcane soils, and unlikely to colonize rainforest or grassland soils, suggesting that rainforest and grassland may act as natural barriers against Foc spread. When sterilized soils were inoculated, Foc proliferated to high levels regardless of landuse, indicating that biotic factors underpin the differential response of landuses to Foc colonization. Differences in the extent and likelihood of Foc soil colonization between soils were associated most strongly with the soil fungal and bacterial community composition and fungal:bacterial biomass ratio. Based on our findings, we propose that future work should explore the use of ground covers, soil amendments and other strategies to improve soil suppressiveness to Foc. Together, our findings offer valuable insights for land managers and demonstrate the importance of rainforest and grassland soils in limiting Foc spread across the landscape. [Display omitted] • Soils from rainforest, grassland, sugarcane, and banana were investigated. • A key banana pathogen was added and quantified before and after incubation. • The pathogen strongly colonized banana soils but not those from other landuses. • Colonization was associated with soil microbial diversity and biomass. • Rainforest and grassland may block pathogen dispersal across landscapes. [ABSTRACT FROM AUTHOR]
Copyright of Agriculture, Ecosystems & Environment is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: Landuse affects the likelihood of soil colonization by a key plant pathogen.
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  Data: <searchLink fieldCode="AR" term="%22Lyons%2C+Rebecca%22">Lyons, Rebecca</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Clarke%2C+Anna-Belle+C%2E%22">Clarke, Anna-Belle C.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lapis-Gaza%2C+Hazel+R%2E%22">Lapis-Gaza, Hazel R.</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sun%2C+Jiarui%22">Sun, Jiarui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Birt%2C+Henry+W%2EG%2E%22">Birt, Henry W.G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pattison%2C+Anthony+B%2E%22">Pattison, Anthony B.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dennis%2C+Paul+G%2E%22">Dennis, Paul G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> p.dennis@uq.edu.au</i>
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  Data: <searchLink fieldCode="JN" term="%22Agriculture%2C+Ecosystems+%26+Environment%22">Agriculture, Ecosystems & Environment</searchLink>. Nov2025, Vol. 393, pN.PAG-N.PAG. 1p.
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  Data: *<searchLink fieldCode="DE" term="%22Soil+biodiversity%22">Soil biodiversity</searchLink><br />*<searchLink fieldCode="DE" term="%22Infectious+disease+transmission%22">Infectious disease transmission</searchLink><br />*<searchLink fieldCode="DE" term="%22Land+cover%22">Land cover</searchLink><br />*<searchLink fieldCode="DE" term="%22Soil+management%22">Soil management</searchLink><br />*<searchLink fieldCode="DE" term="%22Biosecurity%22">Biosecurity</searchLink><br /><searchLink fieldCode="DE" term="%22Fusarium%22">Fusarium</searchLink><br /><searchLink fieldCode="DE" term="%22Phytopathogenic+microorganisms%22">Phytopathogenic microorganisms</searchLink><br /><searchLink fieldCode="DE" term="%22Wet+Tropics+of+Queensland+World+Heritage+Area+%28Qld%2E%29%22">Wet Tropics of Queensland World Heritage Area (Qld.)</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Fencing and other biosecurity measures can help to reduce the spread of soil-borne pathogens, but are often compromised by weather, animals and insects. Once contaminated soil spreads beyond a farm, neighbouring land can either help or hinder pathogen dispersal based on its susceptibility to colonization. Fusarium wilt of banana, caused by the soil-borne pathogen Fusarium oxysporum f. sp. cubense (Foc), poses a serious threat to global banana production. In the Wet Tropics Region of Queensland, where most of Australia's bananas are grown, we found that banana production land is mostly bordered by rainforest, grassland, and sugarcane production areas. In soil inoculation experiments using quantitative PCR, we found that Foc was highly likely to colonize banana soils, moderately likely to colonize sugarcane soils, and unlikely to colonize rainforest or grassland soils, suggesting that rainforest and grassland may act as natural barriers against Foc spread. When sterilized soils were inoculated, Foc proliferated to high levels regardless of landuse, indicating that biotic factors underpin the differential response of landuses to Foc colonization. Differences in the extent and likelihood of Foc soil colonization between soils were associated most strongly with the soil fungal and bacterial community composition and fungal:bacterial biomass ratio. Based on our findings, we propose that future work should explore the use of ground covers, soil amendments and other strategies to improve soil suppressiveness to Foc. Together, our findings offer valuable insights for land managers and demonstrate the importance of rainforest and grassland soils in limiting Foc spread across the landscape. [Display omitted] • Soils from rainforest, grassland, sugarcane, and banana were investigated. • A key banana pathogen was added and quantified before and after incubation. • The pathogen strongly colonized banana soils but not those from other landuses. • Colonization was associated with soil microbial diversity and biomass. • Rainforest and grassland may block pathogen dispersal across landscapes. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Agriculture, Ecosystems & Environment is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.agee.2025.109814
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Soil biodiversity
        Type: general
      – SubjectFull: Infectious disease transmission
        Type: general
      – SubjectFull: Land cover
        Type: general
      – SubjectFull: Soil management
        Type: general
      – SubjectFull: Biosecurity
        Type: general
      – SubjectFull: Fusarium
        Type: general
      – SubjectFull: Phytopathogenic microorganisms
        Type: general
      – SubjectFull: Wet Tropics of Queensland World Heritage Area (Qld.)
        Type: general
    Titles:
      – TitleFull: Landuse affects the likelihood of soil colonization by a key plant pathogen.
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            NameFull: Lyons, Rebecca
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            NameFull: Clarke, Anna-Belle C.
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            NameFull: Lapis-Gaza, Hazel R.
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            NameFull: Sun, Jiarui
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            NameFull: Birt, Henry W.G.
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            – D: 01
              M: 11
              Text: Nov2025
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              Y: 2025
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              Value: 393
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