Bipolaris oryzae 37 claims

species · family Pleosporaceae · fungus · NCBI Taxonomy ↗

Also written in claims: Helminthosporium oryzae · D. oryzae — NCBI synonyms: Cochliobolus miyabeanus · Drechslera oryzae · Helminthosporium oryzae · Luttrellia oryzae

4 spellings

Bipolaris oryzaeJie-Hao Ou · CC BY 4.0 · iNaturalist ↗

37 claims

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Observationobservedoriginal resultmeasured

Claim · model-written summary

B. oryzae was confirmed as the causal agent of rice brown spot.

Taxon: B. oryzaeBipolaris oryzaee0
Interactor: riceOryza sativat0host
Outcome: causal agent of the diseasee0

Verbatim

e0
“The fungus B. oryzae was confirmed as the causal agent of the disease.”
✓ located verbatim in the source · abstract, characters 898–968

t0
“rice”
✓ located verbatim in the source · title, characters 75–79

Title

Pathogen identification and chemical control of brown leaf spot disease of rice caused by Bipolaris oryzae

Isaac Bedu; Seloame Tatu Nyaku; Christiana Amoatey; et al. Discover Plants. 2026. doi:10.1007/s44372-026-00543-x

Other claims from this paper (10)

Observation Rice brown spot prevalence was 100% in the Ghana study area.
Observation Rice brown spot incidence ranged from 86.7% to 100% across districts over two successive years.
Observation Rice brown spot severity ranged from 24.67 to 57.61% across districts over two successive years.
Intervention effect Cuprofix disperss controlled rice brown spot and increased rice yield.
Intervention effect Coprous super controlled rice brown spot and increased rice yield.
Intervention effect Curenox controlled rice brown spot and increased rice yield.
Intervention effect Ex-icute controlled rice brown spot and increased rice yield.
Intervention effect Supramino 999 controlled rice brown spot and increased rice yield.
Intervention effect Mirage controlled rice brown spot and increased rice yield.
Recommendation The authors recommend rotating copper-based and organic fungicides to control rice brown spot in Ghana.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.

Taxon: Bipolaris oryzaeBipolaris oryzaee0
Interactor: Bipolaris oryzaeBipolaris oryzaee0pathogen
Outcome: laccase activitye0
Value: 25.54e0
Qualifier: Sivakumare0

Verbatim

e0
“Bipolaris oryzae was the associated agent of LS, it produces 25.54 and 22.17 U mg of protein-1 of laccase activity in the Sivakumar and wheat bran (WB) media”
✓ located verbatim in the source · abstract, characters 850–1007

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Oscar Guillermo Rebolledo-Prudencio; Wilberth Chan-Cupul; Guadalupe Moreno-Zúñiga; et al. Revista mexicana de fitopatología(en línea)/Revista mexicana de fitopatología 2025. doi:10.18781/r.mex.fit.2024-09

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Observationobservedoriginal resultmeasured

Claim · model-written summary

Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.

Taxon: Bipolaris oryzaeBipolaris oryzaee0
Interactor: Bipolaris oryzaeBipolaris oryzaee0pathogen
Outcome: laccase activitye0
Value: 22.17 U mg of protein-1e0
Qualifier: wheat bran (WB) mediae0

Verbatim

e0
“Bipolaris oryzae was the associated agent of LS, it produces 25.54 and 22.17 U mg of protein-1 of laccase activity in the Sivakumar and wheat bran (WB) media”
✓ located verbatim in the source · abstract, characters 850–1007

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Observationobservedoriginal resultmeasured

Claim · model-written summary

The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.

Taxon: Bipolaris oryzaeBipolaris oryzaet0
Interactor: Bipolaris oryzaeBipolaris oryzaet0pathogen
Outcome: highest sporulation and daily growth ratee0
Qualifier: WBe0

Verbatim

t0
“Bipolaris oryzae”
✓ located verbatim in the source · title, characters 0–16

e0
“The highest sporulation and daily growth rate were in WB”
✓ located verbatim in the source · abstract, characters 1378–1434

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.

Taxon: B. oryzaeBipolaris oryzaee0
Treatment: Trichoderma harzianume0
Interactor: B. oryzaeBipolaris oryzaee0pathogen
Second interactor: Trichoderma harzianumTrichoderma harzianume0biocontrol_agent
Outcome: inhibited B. oryzaee0
Direction: inhibitede0
Value: 100%e0
Qualifier: four evaluated dosese0

Not reportedComparator

Verbatim

e0
“Trichoderma harzianum inhibited B. oryzae at 100% in the four evaluated doses”
✓ located verbatim in the source · abstract, characters 1057–1134

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).

Taxon: B. oryzaeBipolaris oryzaee0
Treatment: B. subtilise0
Interactor: B. oryzaeBipolaris oryzaee0pathogen
Second interactor: B. subtilisBacillus subtilise0biocontrol_agent
Outcome: inhibited B. oryzaee0
Direction: inhibitede0
Value: 100%e0
Qualifier: highest tested doses (20 mL L-1)e0

Not reportedComparator

Verbatim

e0
“B. subtilis and B. amyloliquefaciens inhibited B. oryzae at 100% at the highest tested doses (20 mL L-1)”
✓ located verbatim in the source · abstract, characters 1136–1240

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).

Taxon: B. oryzaeBipolaris oryzaee0
Treatment: B. amyloliquefaciense0
Interactor: B. oryzaeBipolaris oryzaee0pathogen
Second interactor: B. amyloliquefaciensBacillus amyloliquefaciense0biocontrol_agent
Outcome: inhibited B. oryzaee0
Direction: inhibitede0
Value: 100%e0
Qualifier: highest tested doses (20 mL L-1)e0

Not reportedComparator

Verbatim

e0
“B. subtilis and B. amyloliquefaciens inhibited B. oryzae at 100% at the highest tested doses (20 mL L-1)”
✓ located verbatim in the source · abstract, characters 1136–1240

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.

Taxon: B. oryzaeBipolaris oryzaee0
Treatment: T. harzianume0
Interactor: B. oryzaeBipolaris oryzaee0pathogen
Second interactor: T. harzianumTrichoderma harzianume0biocontrol_agent
Outcome: inhibiting B. oryzae growthe0
Direction: stood oute0
Value: 100%e0
Comparator: T. viridee0

Verbatim

e0
“T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%”
✓ located verbatim in the source · abstract, characters 1436–1512

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

B. subtilis was more effective against B. oryzae in vitro than S. jofer.

Taxon: B. oryzaeBipolaris oryzaee0
Treatment: B. subtilise0
Interactor: B. oryzaeBipolaris oryzaee0pathogen
Second interactor: B. subtilisBacillus subtilise0biocontrol_agent
Outcome: effective against B. oryzaee0
Direction: more effectivee0
Comparator: S. jofere0
Setting: in vitroe0

Verbatim

e0
“B. subtilis, S. lydicus and B. amyloliquefaciens were more effective against B. oryzae in vitro compared to S. jofer”
✓ located verbatim in the source · abstract, characters 1514–1630

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect S. lydicus was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.

Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

S. lydicus was more effective against B. oryzae in vitro than S. jofer.

Taxon: B. oryzaeBipolaris oryzaee0
Treatment: S. lydicuse0
Interactor: B. oryzaeBipolaris oryzaee0pathogen
Second interactor: S. lydicusStreptomyces lydicuse0biocontrol_agent
Outcome: effective against B. oryzaee0
Direction: more effectivee0
Comparator: S. jofere0
Setting: in vitroe0

Verbatim

e0
“B. subtilis, S. lydicus and B. amyloliquefaciens were more effective against B. oryzae in vitro compared to S. jofer”
✓ located verbatim in the source · abstract, characters 1514–1630

Title

Bipolaris oryzae associated agent at the leaf spot disease in Cocos nucifera hybrid “Brazilian Green Dwarf”

Other claims from this paper (11)

Observation A leaf spot disease was detected in Tecoman, Colima, Mexico with 92.0% incidence in the coconut hybrid Brazilian Green Dwarf.
Observation Bipolaris oryzae was identified as the agent associated with leaf spot in the coconut hybrid.
Observation Bipolaris oryzae produced 25.54 U per mg protein of laccase activity in the Sivakumar medium.
Observation Bipolaris oryzae produced 22.17 U per mg protein of laccase activity in the wheat bran (WB) medium.
Observation The highest sporulation and daily growth rate of Bipolaris oryzae were obtained in the wheat bran (WB) medium.
Intervention effect Trichoderma harzianum inhibited B. oryzae by 100% at all four evaluated doses in vitro.
Intervention effect B. subtilis inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect B. amyloliquefaciens inhibited B. oryzae by 100% at the highest tested dose (20 mL per L).
Intervention effect T. harzianum stood out over T. viride by inhibiting B. oryzae growth by 100%.
Intervention effect B. subtilis was more effective against B. oryzae in vitro than S. jofer.
Intervention effect B. amyloliquefaciens was more effective against B. oryzae in vitro than S. jofer.