Abstract
Returning straw can alter the soil microbial community, reduce the occurrence of soilborne diseases, and promote plant growth. In this study, we aimed to evaluate the effects of Ricinus straw on tomato growth and rhizosphere microbial community. We carried out microcosm experiments to investigate the effects of Ricinus straw with different dosages (0, 1, and 3%) on tomato dry biomass and rhizosphere bacterial and fungal communities. The results indicated that the dry biomass of tomato seedlings with 1% addition of Ricinus straw increased by 53.98%. In addition, Ricinus straw also changed the abundance, diversities, and composition of tomato rhizosphere microbial communities. In detail, the addition of 1% Ricinus straw increased the relative abundance of putative beneficial bacteria and fungi in straw decomposition, such as Ramlibacter sp., Azohydromonas sp., Schizothecium sp., and Acaulium sp., and decreased the relative abundance of Fusarium sp. Meanwhile, Ricinus straw inhibited the growth of putative pathogenic microorganisms. The correlation analysis showed that the changes in fungal community operational taxonomic units stimulated by the addition of Ricinus straw may play a crucial positive regulatory role in tomato growth. Finally, the representative fungal strain Fusarium oxysporum f. sp. Lycopersici (FOL), named TF25, was isolated and cultured. We found that Ricinus straw extract inhibited the growth of TF25 in an in vitro experiment with an inhibition rate of 34.95–51.91%. Collectively, Ricinus straw promoted plant growth by changing the rhizosphere microbial community composition and inhibiting FOL growth, which provides new evidence for understanding the improvement of key microorganism composition in improving crop growth and the sustainability of agriculture.
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Claims 9
Claim · model-written summary
One percent Ricinus straw increased tomato seedling dry biomass by 53.98%.
- Taxon
- tomato
Solanum lycopersicume0 - Treatment
- 1% addition of Ricinus strawe0
- Outcome
- dry biomasse0
- Direction
- increasede0
- Value
- 53.98%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the dry biomass of tomato seedlings with 1% addition of Ricinus straw increased by 53.98%”
Claim · model-written summary
Ricinus straw changed the abundance, diversity and composition of tomato rhizosphere microbial communities.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- Ricinus strawe0
- Outcome
- abundance, diversities, and composition of tomato rhizosphere microbial communitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ricinus straw also changed the abundance, diversities, and composition of tomato rhizosphere microbial communities”
Claim · model-written summary
One percent Ricinus straw increased the relative abundance of putative beneficial bacteria and fungi.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 1% Ricinus strawe0
- Interactor
- Ramlibacter sp.
Ramlibactere0symbiont - Outcome
- relative abundance of putative beneficial bacteria and fungie0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the addition of 1% Ricinus straw increased the relative abundance of putative beneficial bacteria and fungi in straw decomposition, such as Ramlibacter sp., Azohydromonas sp., Schizothecium sp., and Acaulium sp.”
t0“tomato growth”
Claim · model-written summary
One percent Ricinus straw decreased the relative abundance of Fusarium sp.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- 1% Ricinus strawe0
- Outcome
- relative abundance of Fusarium sp.e0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the addition of 1% Ricinus straw increased the relative abundance of putative beneficial bacteria and fungi in straw decomposition, such as Ramlibacter sp., Azohydromonas sp., Schizothecium sp., and Acaulium sp., and decreased the relative abundance of Fusarium sp.”
t0“tomato growth”
Claim · model-written summary
Ricinus straw inhibited putative pathogenic microorganisms.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ricinus strawe0
- Outcome
- growth of putative pathogenic microorganismse0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ricinus straw inhibited the growth of putative pathogenic microorganisms”
t0“tomato growth”
Claim · model-written summary
Changes in fungal community operational taxonomic units may positively regulate tomato growth.
- Taxon
- tomatoSolanum lycopersicume0
- Treatment
- addition of Ricinus strawe0
- Outcome
- tomato growthe0
- Direction
- positivee0
- Qualifier
- maye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“changes in fungal community operational taxonomic units stimulated by the addition of Ricinus straw may play a crucial positive regulatory role in tomato growth”
Claim · model-written summary
The fungal strain FOL TF25 was isolated and cultured.
- Taxon
- tomatoSolanum lycopersicumt0
- Interactor
- Fusarium oxysporum f. sp. Lycopersici
Fusarium oxysporum f. sp. lycopersicie0pathogen - Outcome
- Fusarium oxysporum f. sp. Lycopersici (FOL), named TF25, was isolated and culturede0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the representative fungal strain Fusarium oxysporum f. sp. Lycopersici (FOL), named TF25, was isolated and cultured”
t0“tomato growth”
Claim · model-written summary
Ricinus straw extract inhibited FOL TF25 growth in vitro by 34.95–51.91%.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ricinus straw extracte0
- Interactor
- TF25e0pathogen
- Outcome
- growth of TF25e0
- Direction
- inhibitede0
- Value
- 34.95–51.91%e0
- Setting
- in vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ricinus straw extract inhibited the growth of TF25 in an in vitro experiment with an inhibition rate of 34.95–51.91%”
t0“tomato growth”
Claim · model-written summary
Authors attribute promoted tomato growth to changed rhizosphere communities and inhibited FOL growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- Ricinus strawe0
- Interactor
- FOLe0pathogen
- Outcome
- plant growthe0
- Qualifier
- changing the rhizosphere microbial community composition and inhibiting FOL growthe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Ricinus straw promoted plant growth by changing the rhizosphere microbial community composition and inhibiting FOL growth”
t0“tomato growth”
The same questions in other papers
botanical · growth · Solanum lycopersicum (tomato)Positive and negative results
202 papers in the same direction as this paper · 87 in the opposite direction · 1 reporting no difference from an alternative
- no effect
- negative
- negative
287 papers more in this group
See all 291 papers →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.