Abstract
Banana production is severely threatened by both Fusarium wilt (caused by Fusarium oxysporum f. sp. cubense tropical race 4, Foc TR4) and anthracnose (caused by Colletotrichum musae ), which are devastating soil-borne and postharvest diseases, respectively. Biocontrol using antagonistic microorganisms offers an eco-friendly alternative for managing the concurrent occurrence of soil-borne and postharvest pathogens. In this study, strain YGL11-2 was isolated and characterized as a novel species of Streptomyces through polyphasic taxonomy, for which we propose the name Streptomyces yinggelingensis sp . nov . Genomic analysis of this strain revealed 48 secondary metabolite gene clusters, including compounds such as Ectoine and Anantin C, which exhibit potential antifungal activity. Strain YGL11-2 demonstrated dual antagonistic activity against Foc TR4 and C. musae , with half-maximal effective concentrations (EC 50 ) values of 12.01 mg/L and 25.31 mg/L, respectively. Regarding antifungal mechanisms, strain YGL11-2 extracts disrupted fungal cell membrane structures, caused hyphal and spore wrinkling and breakage, and inhibited spore germination. Pot experiments confirmed that banana seedlings treated with strain YGL11-2 extracts showed a reduced Foc TR4 disease index, achieving a control efficacy of 41.94 %, while significantly promoting root growth (+10.55 cm) and biomass accumulation (+46.40 %). In fruit experiments, bananas treated with strain YGL11-2 exhibited an anthracnose inhibition rate of up to 72.96 %, along with improved quality and delayed ripening. This study is the first to discover a novel Streptomyces species capable of cross-type control of both soil-borne and postharvest diseases, offering a breakthrough solution for controlling both types of banana diseases.
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Claims 11
Claim · model-written summary
Strain YGL11-2 was isolated and characterized as a novel Streptomyces species through polyphasic taxonomy.
- Taxon
- Streptomyces
Streptomycese0 - Outcome
- novel speciese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“strain YGL11-2 was isolated and characterized as a novel species of Streptomyces”
Claim · model-written summary
Genomic analysis of strain YGL11-2 revealed 48 secondary metabolite gene clusters.
Verbatim
e0“Genomic analysis of this strain revealed 48 secondary metabolite gene clusters”
e1“Streptomyces yinggelingensis”
Claim · model-written summary
Strain YGL11-2 showed antagonistic activity against Foc TR4 with an EC50 of 12.01 mg/L.
- Interactor
- Foc TR4
_(38100977215).jpg?width=60)
Fusarium odoratissimume0pathogen - Second interactor
- Strain YGL11-2e0biocontrol_agent
- Outcome
- EC 50e0
- Value
- 12.01 mg/Le0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_(38100977215).jpg?width=500)
Verbatim
e0“Strain YGL11-2 demonstrated dual antagonistic activity against Foc TR4 and C. musae , with half-maximal effective concentrations (EC 50 ) values of 12.01 mg/L and 25.31 mg/L, respectively”
Claim · model-written summary
Strain YGL11-2 showed antagonistic activity against Colletotrichum musae with an EC50 of 25.31 mg/L.
- Interactor
- C. musae
-_Anthracnose_caused_by_Colletotrichum_musae.jpg?width=60)
Colletotrichum musaee0pathogen - Second interactor
- Strain YGL11-2e0biocontrol_agent
- Outcome
- EC 50e0
- Value
- 25.31 mg/Le0
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
-_Anthracnose_caused_by_Colletotrichum_musae.jpg?width=500)
Verbatim
e0“Strain YGL11-2 demonstrated dual antagonistic activity against Foc TR4 and C. musae , with half-maximal effective concentrations (EC 50 ) values of 12.01 mg/L and 25.31 mg/L, respectively”
Claim · model-written summary
Strain YGL11-2 extracts disrupted fungal cell membrane structures, caused hyphal and spore wrinkling and breakage, and inhibited spore germination.
- Treatment
- strain YGL11-2 extractse0
- Outcome
- disrupted fungal cell membrane structures, caused hyphal and spore wrinkling and breakage, and inhibited spore germinatione0
Not reportedTaxon
Verbatim
e0“strain YGL11-2 extracts disrupted fungal cell membrane structures, caused hyphal and spore wrinkling and breakage, and inhibited spore germination”
Claim · model-written summary
In pot experiments, banana seedlings treated with strain YGL11-2 extracts had a reduced Foc TR4 disease index, with a control efficacy of 41.94 %.
- Taxon
- bananae0
- Treatment
- strain YGL11-2 extractse0
- Interactor
- Foc TR4Fusarium odoratissimume0pathogen
- Second interactor
- strain YGL11-2e0biocontrol_agent
- Outcome
- Foc TR4 disease indexe0
- Direction
- reducede0
- Value
- 41.94 %e0
- Setting
- Pot experimentse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pot experiments confirmed that banana seedlings treated with strain YGL11-2 extracts showed a reduced Foc TR4 disease index, achieving a control efficacy of 41.94 %”
Claim · model-written summary
Banana seedlings treated with strain YGL11-2 extracts showed significantly promoted root growth (+10.55 cm).
- Taxon
- bananae0
- Treatment
- strain YGL11-2 extractse0
- Outcome
- root growthe0
- Direction
- promotinge0
- Value
- +10.55 cme0
Not reportedComparator
Verbatim
e0“banana seedlings treated with strain YGL11-2 extracts showed a reduced Foc TR4 disease index, achieving a control efficacy of 41.94 %, while significantly promoting root growth (+10.55 cm) and biomass accumulation (+46.40 %)”
Claim · model-written summary
Banana seedlings treated with strain YGL11-2 extracts showed significantly increased biomass accumulation (+46.40 %).
- Taxon
- bananae0
- Treatment
- strain YGL11-2 extractse0
- Outcome
- biomass accumulatione0
- Direction
- promotinge0
- Value
- +46.40 %e0
Not reportedComparator
Verbatim
e0“banana seedlings treated with strain YGL11-2 extracts showed a reduced Foc TR4 disease index, achieving a control efficacy of 41.94 %, while significantly promoting root growth (+10.55 cm) and biomass accumulation (+46.40 %)”
Claim · model-written summary
In fruit experiments, bananas treated with strain YGL11-2 had an anthracnose inhibition rate of up to 72.96 %.
- Taxon
- bananase0
- Treatment
- strain YGL11-2e0
- Outcome
- anthracnose inhibition ratee0
- Direction
- up toe0
- Value
- 72.96 %e0
- Setting
- fruit experimentse0
Not reportedComparator
Verbatim
e0“In fruit experiments, bananas treated with strain YGL11-2 exhibited an anthracnose inhibition rate of up to 72.96 %”
Claim · model-written summary
Bananas treated with strain YGL11-2 showed improved fruit quality.
- Taxon
- bananase0
- Treatment
- strain YGL11-2e0
- Outcome
- qualitye0
- Direction
- improvede0
- Setting
- fruit experimentse0
Not reportedComparator
Verbatim
e0“In fruit experiments, bananas treated with strain YGL11-2 exhibited an anthracnose inhibition rate of up to 72.96 %, along with improved quality and delayed ripening”
Claim · model-written summary
Bananas treated with strain YGL11-2 showed delayed ripening.
- Taxon
- bananase0
- Treatment
- strain YGL11-2e0
- Outcome
- ripeninge0
- Direction
- delayede0
- Setting
- fruit experimentse0
Not reportedComparator
Verbatim
e0“In fruit experiments, bananas treated with strain YGL11-2 exhibited an anthracnose inhibition rate of up to 72.96 %, along with improved quality and delayed ripening”
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