Abstract
Anthracnose is a leaf fungal disease caused by multiple Colletotrichum species. Currently, the predominant deployment of chemical agents for anthracnose control increases ecological pollution risks and potential food safety concerns. The comprehension of the pathogenic mechanism and physicochemical properties of anthracnose is, therefore, essential for effective prevention and control. In this study, the pathogenic strain (pathogen) was isolated from the infected tea plant (Camellia sinensis) leaves and was identified as Colletotrichum gloeosporioides based on microscope observations and gene sequences. This fungus exhibited optimal growth at 28 °C and a pH of 6, with a lethal temperature threshold of 53 °C on PDA plate medium. The 80% tea saponin and 10% polymycin B could effectively inhibit its mycelium growth. Notably, the 10% polyoxin B exhibits a stronger inhibitory effect with an EC50 value of 1.07 mg mL−1. Following infection with Colletotrichum gloeosporioides, the resistant cultivar ‘Zhongcha 108’ exhibited higher levels of H2O2 and O2− than the susceptible ‘Longjing 43’, with later symptom onset and slower disease progression. Although the exogenous treatment of methyl jasmonate (MeJA) did not inhibit C. gloeosporioides directly, it significantly reduced lesion areas in ‘Longjing 43’ leaves caused by C. gloeosporioides. This treatment increased peroxidase and superoxide dismutase activities, but limited malondialdehyde content, thereby enhancing ‘Longjing 43’ resistance to the pathogen. The findings provide scientific guidance for the anthracnose prevention and control in tea gardens.
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Claims 15
Claim · model-written summary
The pathogen isolated from infected tea leaves was identified as Colletotrichum gloeosporioides.
- Taxon
- tea plante0
- Organ / stage
- leavese0
- Interactor
- Colletotrichum gloeosporioides
Colletotrichum gloeosporioidese0pathogen - Outcome
- identified as Colletotrichum gloeosporioidese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the pathogenic strain (pathogen) was isolated from the infected tea plant (Camellia sinensis) leaves and was identified as Colletotrichum gloeosporioides”
Claim · model-written summary
C. gloeosporioides grew optimally at 28 °C on PDA medium.
- Taxon
- tea plante1
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese1pathogen
- Outcome
- optimal growthe0
- Value
- 28 °Ce0
- Setting
- PDA plate mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This fungus exhibited optimal growth at 28 °C and a pH of 6, with a lethal temperature threshold of 53 °C on PDA plate medium”
e1“infected tea plant (Camellia sinensis) leaves and was identified as Colletotrichum gloeosporioides”
Claim · model-written summary
C. gloeosporioides grew optimally at pH 6 on PDA medium.
- Taxon
- tea plante1
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese1pathogen
- Outcome
- optimal growthe0
- Value
- pH of 6e0
- Setting
- PDA plate mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“This fungus exhibited optimal growth at 28 °C and a pH of 6, with a lethal temperature threshold of 53 °C on PDA plate medium”
e1“infected tea plant (Camellia sinensis) leaves and was identified as Colletotrichum gloeosporioides”
Claim · model-written summary
The fungus had a lethal temperature threshold of 53 °C.
- Taxon
- tea plante1
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese1pathogen
- Outcome
- lethal temperature thresholde0
- Value
- 53 °Ce0
- Setting
- PDA plate mediume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a lethal temperature threshold of 53 °C on PDA plate medium”
e1“infected tea plant (Camellia sinensis) leaves and was identified as Colletotrichum gloeosporioides”
Claim · model-written summary
80% tea saponin inhibited fungal mycelial growth.
- Taxon
- tea plante1
- Treatment
- 80% tea saponine0
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese2pathogen
- Outcome
- mycelium growthe0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 80% tea saponin and 10% polymycin B could effectively inhibit its mycelium growth”
e1“tea plant (Camellia sinensis)”
e2“identified as Colletotrichum gloeosporioides”
Claim · model-written summary
10% polymycin B inhibited fungal mycelial growth.
- Taxon
- tea plante1
- Treatment
- 10% polymycin Be0
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese2pathogen
- Outcome
- mycelium growthe0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 80% tea saponin and 10% polymycin B could effectively inhibit its mycelium growth”
e1“tea plant (Camellia sinensis)”
e2“identified as Colletotrichum gloeosporioides”
Claim · model-written summary
10% polyoxin B inhibited fungal growth more strongly, with EC50 of 1.07 mg mL−1.
- Taxon
- tea plante1
- Treatment
- 10% polyoxin Be0
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese2pathogen
- Outcome
- inhibitory effecte0
- Direction
- strongere0
- Value
- 1.07 mg mL−1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 10% polyoxin B exhibits a stronger inhibitory effect with an EC50 value of 1.07 mg mL−1”
e1“tea plant (Camellia sinensis)”
e2“identified as Colletotrichum gloeosporioides”
Claim · model-written summary
Infected resistant Zhongcha 108 had higher H2O2 than susceptible Longjing 43.
- Taxon
- tea plante1
- Material
- Zhongcha 108e0
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese0pathogen
- Outcome
- levels of H2O2e0
- Direction
- highere0
- Comparator
- Longjing 43e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following infection with Colletotrichum gloeosporioides, the resistant cultivar ‘Zhongcha 108’ exhibited higher levels of H2O2 and O2− than the susceptible ‘Longjing 43’”
e1“tea plant (Camellia sinensis)”
Claim · model-written summary
Infected resistant Zhongcha 108 had higher O2− than susceptible Longjing 43.
- Taxon
- tea plante1
- Material
- Zhongcha 108e0
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese0pathogen
- Outcome
- O2−e0
- Direction
- highere0
- Comparator
- Longjing 43e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Following infection with Colletotrichum gloeosporioides, the resistant cultivar ‘Zhongcha 108’ exhibited higher levels of H2O2 and O2− than the susceptible ‘Longjing 43’”
e1“tea plant (Camellia sinensis)”
Claim · model-written summary
Resistant Zhongcha 108 had later symptom onset and slower disease progression than Longjing 43.
- Taxon
- tea plante1
- Material
- Zhongcha 108e0
- Interactor
- Colletotrichum gloeosporioidesColletotrichum gloeosporioidese2pathogen
- Outcome
- symptom onset and slower disease progressione0
- Direction
- slowere0
- Comparator
- Longjing 43e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the resistant cultivar ‘Zhongcha 108’ exhibited higher levels of H2O2 and O2− than the susceptible ‘Longjing 43’, with later symptom onset and slower disease progression”
e1“tea plant (Camellia sinensis)”
e2“identified as Colletotrichum gloeosporioides”
Claim · model-written summary
Exogenous MeJA did not inhibit C. gloeosporioides directly.
- Taxon
- tea plante1
- Treatment
- methyl jasmonate (MeJA)e0
- Interactor
- C. gloeosporioidesColletotrichum gloeosporioidese0pathogen
- Outcome
- C. gloeosporioidese0
- Direction
- did not inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the exogenous treatment of methyl jasmonate (MeJA) did not inhibit C. gloeosporioides directly”
e1“tea plant (Camellia sinensis)”
Claim · model-written summary
MeJA significantly reduced lesion areas caused by C. gloeosporioides in Longjing 43 leaves.
- Taxon
- tea plante2
- Material
- Longjing 43e0
- Organ / stage
- leavese0
- Treatment
- methyl jasmonate (MeJA)e1
- Interactor
- C. gloeosporioidesColletotrichum gloeosporioidese0pathogen
- Outcome
- lesion arease0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it significantly reduced lesion areas in ‘Longjing 43’ leaves caused by C. gloeosporioides”
e1“the exogenous treatment of methyl jasmonate (MeJA)”
e2“tea plant (Camellia sinensis)”
Claim · model-written summary
MeJA increased peroxidase and superoxide dismutase activities in Longjing 43.
- Taxon
- tea plante3
- Material
- Longjing 43e2
- Treatment
- methyl jasmonate (MeJA)e1
- Outcome
- peroxidase and superoxide dismutase activitiese0
- Direction
- increasede0
Not reportedComparator
Verbatim
e0“This treatment increased peroxidase and superoxide dismutase activities”
e1“methyl jasmonate (MeJA)”
e2“susceptible ‘Longjing 43’”
e3“tea plant (Camellia sinensis)”
Claim · model-written summary
MeJA limited malondialdehyde content in Longjing 43.
- Taxon
- tea plante3
- Material
- Longjing 43e2
- Treatment
- methyl jasmonate (MeJA)e1
- Outcome
- malondialdehyde contente0
- Direction
- limitede0
Not reportedComparator
Verbatim
e0“but limited malondialdehyde content”
e1“methyl jasmonate (MeJA)”
e2“susceptible ‘Longjing 43’”
e3“tea plant (Camellia sinensis)”
Claim · model-written summary
The authors interpreted MeJA treatment as enhancing Longjing 43 resistance to the pathogen.
- Taxon
- tea plante2
- Material
- Longjing 43e0
- Treatment
- methyl jasmonate (MeJA)e1
- Interactor
- C. gloeosporioidesColletotrichum gloeosporioidese3pathogen
- Outcome
- resistance to the pathogene0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“thereby enhancing ‘Longjing 43’ resistance to the pathogen”
e1“methyl jasmonate (MeJA)”
e2“tea plant (Camellia sinensis)”
e3“caused by C. gloeosporioides”
The same questions in other papers
(-)-methyl jasmonate · physiology: oxidative · Camellia sinensis (black tea)Results agree
1 paper in the same direction as this paper
- positive
(-)-methyl jasmonate · physiology: antioxidant enzymes · Camellia sinensis (black tea)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.