Abstract
BACKGROUND: Soft rot (Pectobacterium aroidearum and Dickeya) is a devastating soil-borne bacterial disease that threatens konjac production. Intercropping with false acacia has been shown to significantly reduce soft rot incidence in konjac by shifting the microbial community. However, how intercropping shapes the root bacterial community and affects soft rot incidence remains unclear. To address this, we investigated three konjac intercropping systems (false acacia, paulownia, and maize) to explore the relationships among intercropping, soft rot incidence, root bacterial community, soil enzyme activity, and soil properties. RESULTS: Konjac intercropped with false acacia exhibited the lowest soft rot incidence and the lowest abundance of pathogenic taxa. Soft rot incidence was negatively correlated with total soil nitrogen and potassium but positively correlated with total and available soil phosphorus. The bacterial community structure and function in konjac roots differed among intercropping types, mainly driven by available soil phosphorus. Beneficial microorganisms such as Bradyrhizobium and Variovorax were enriched under a false acacia intercropping system and were negatively correlated with soil-available phosphorus. Additionally, the stable bacterial community in healthy konjac roots under false acacia may make konjac less susceptible to pathogen invasion. CONCLUSION: The study showed that intercropping reduced the soft rot incidence by regulating the structure and stability of the konjac root bacterial community, and soil-available phosphorus was the main factor affecting the difference in the konjac root bacterial community, which provided a basis for the management of soil fertilization in konjac cultivation. © 2024 Society of Chemical Industry.
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Claims 10
Claim · model-written summary
False acacia intercropping gave konjac the lowest soft rot incidence.
- Taxon
- Konjac
Amorphophallus konjace0 - Treatment
- intercropped with false acaciae0
- Interactor
- false acaciae0other
- Outcome
- soft rot incidencee0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Konjac intercropped with false acacia exhibited the lowest soft rot incidence”
Claim · model-written summary
False acacia intercropping gave konjac the lowest abundance of pathogenic taxa.
- Taxon
- KonjacAmorphophallus konjace0
- Treatment
- intercropped with false acaciae0
- Interactor
- pathogenic taxae0pathogen
- Second interactor
- false acaciae0other
- Outcome
- abundance of pathogenic taxae0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Konjac intercropped with false acacia exhibited the lowest soft rot incidence and the lowest abundance of pathogenic taxa.”
Claim · model-written summary
Konjac soft rot incidence was negatively correlated with total soil nitrogen and potassium.
- Taxon
- konjacAmorphophallus konjact0
- Compound
- total soil nitrogen and potassiume0
- Outcome
- Soft rot incidencee0
- Direction
- negatively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soft rot incidence was negatively correlated with total soil nitrogen and potassium”
t0“konjac”
Claim · model-written summary
Konjac soft rot incidence was positively correlated with total and available soil phosphorus.
- Taxon
- konjacAmorphophallus konjact0
- Compound
- total and available soil phosphoruse0
- Outcome
- Soft rot incidencee0
- Direction
- positively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Soft rot incidence was negatively correlated with total soil nitrogen and potassium but positively correlated with total and available soil phosphorus.”
t0“konjac”
Claim · model-written summary
Konjac root bacterial community structure and function differed among intercropping types.
- Taxon
- konjacAmorphophallus konjace0
- Organ / stage
- rootse0
- Outcome
- bacterial community structure and functione0
- Direction
- differede0
- Qualifier
- available soil phosphoruse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacterial community structure and function in konjac roots differed among intercropping types, mainly driven by available soil phosphorus.”
Claim · model-written summary
Available soil phosphorus mainly drove differences in the konjac root bacterial community.
- Taxon
- konjacAmorphophallus konjace0
- Compound
- available soil phosphoruse0
- Outcome
- bacterial community structure and functione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacterial community structure and function in konjac roots differed among intercropping types, mainly driven by available soil phosphorus.”
t0“konjac”
Claim · model-written summary
False acacia intercropping enriched Bradyrhizobium and Variovorax.
- Taxon
- konjacAmorphophallus konjact0
- Treatment
- false acacia intercropping systeme0
- Interactor
- Bradyrhizobium and Variovorax
BradyrhizobiumVariovoraxe0symbiont - Outcome
- Bradyrhizobium and Variovoraxe0
- Direction
- enrichede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Beneficial microorganisms such as Bradyrhizobium and Variovorax were enriched under a false acacia intercropping system”
t0“konjac”
Claim · model-written summary
Bradyrhizobium and Variovorax abundance was negatively correlated with available soil phosphorus.
- Taxon
- konjacAmorphophallus konjact0
- Interactor
- Bradyrhizobium and VariovoraxBradyrhizobiumVariovoraxe0symbiont
- Compound
- soil-available phosphoruse0
- Outcome
- Bradyrhizobium and Variovoraxe0
- Direction
- negatively correlatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Bradyrhizobium and Variovorax were enriched under a false acacia intercropping system and were negatively correlated with soil-available phosphorus.”
t0“konjac”
Claim · model-written summary
Stable bacterial communities in healthy konjac roots may make konjac less susceptible to pathogen invasion.
- Taxon
- konjacAmorphophallus konjace0
- Outcome
- susceptible to pathogen invasione0
- Qualifier
- stable bacterial community in healthy konjac rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the stable bacterial community in healthy konjac roots under false acacia may make konjac less susceptible to pathogen invasion.”
Claim · model-written summary
The authors conclude that intercropping reduced konjac soft rot incidence by regulating root bacterial community structure and stability.
- Taxon
- konjacAmorphophallus konjace0
- Treatment
- intercroppinge0
- Outcome
- soft rot incidencee0
- Direction
- reducede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping reduced the soft rot incidence by regulating the structure and stability of the konjac root bacterial community”
The same questions in other papers
intercropping · disease · Amorphophallus konjac (konjac)Results agree
2 papers in the same direction as this paper
- positive
- positive
Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.