Abstract
The effect of compost suppressiveness towards Fusarium oxysporum f. sp. lactucae has been studied using a combined approach. Bioassays have been carried out in controlled conditions to obtain standardization of the environment in order to minimize the disturbances and variability of the soil microbial communities. Compost addition has demonstrated significant efficacy in controlling the disease. The microbial activities and the bacterial and fungal concentrations have been quantified and correlated in a principal component analysis in order to clarify the correlation between the original variables. The samples were clearly distinguished between the substrates in which the plants were grown and the rhizosphere samples. Denaturing Gradient Gel Electrophoresis (DGGE) has been used to track the microbial communities throughout the bioassays. The approach has shown to be useful in detecting both bacterial and fungal species that preferentially associate with the roots of seedlings. Detected microorganisms assumed to be involved in compost-mediated suppression had a high probability of being vital because they were not detected in the substrate where the plants were grown at the start of the experiment.
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Claims 4
Claim · model-written summary
Compost addition significantly controlled Fusarium wilt of lettuce.
- Taxon
- lettuce
Lactuca sativat0 - Treatment
- Compost additione1
- Interactor
- Fusarium oxysporum f. sp. lactucae
Fusarium oxysporum f. sp. lactucaee0pathogen - Outcome
- controlling the diseasee1
- Direction
- significant efficacye1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fusarium Wilt of Lettuce”
e0“The effect of compost suppressiveness towards Fusarium oxysporum f. sp. lactucae has been studied using a combined approach”
e1“Compost addition has demonstrated significant efficacy in controlling the disease”
Claim · model-written summary
Samples from the substrates and the rhizosphere were clearly distinguished by their microbial communities.
- Taxon
- lettuceLactuca sativat0
- Outcome
- The samples were clearly distinguishede2
- Qualifier
- between the substrates in which the plants were grown and the rhizosphere samplese2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fusarium Wilt of Lettuce”
e2“The samples were clearly distinguished between the substrates in which the plants were grown and the rhizosphere samples”
Claim · model-written summary
DGGE detected both bacterial and fungal species that preferentially associate with lettuce seedling roots.
- Taxon
- lettuceLactuca sativat0
- Interactor
- bacterial and fungal speciese3other
- Outcome
- detecting both bacterial and fungal speciese3
- Qualifier
- that preferentially associate with the roots of seedlingse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fusarium Wilt of Lettuce”
e3“The approach has shown to be useful in detecting both bacterial and fungal species that preferentially associate with the roots of seedlings”
Claim · model-written summary
Microorganisms absent from the initial substrate are assumed to be involved in compost-mediated suppression.
- Taxon
- lettuceLactuca sativat0
- Outcome
- compost-mediated suppressione4
- Qualifier
- they were not detected in the substrate where the plants were grown at the start of the experimente4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Fusarium Wilt of Lettuce”
e4“Detected microorganisms assumed to be involved in compost-mediated suppression had a high probability of being vital because they were not detected in the substrate where the plants were grown at the start of the experiment”
The same questions in other papers
fertilization · Fusarium oxysporum f. sp. lactucae · Lactuca sativa (garden lettuce)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- 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.