Abstract
Abstract Chinese peony ( Paeonia lactiflora Pall.) is both medicinally and aesthetically beneficial. Powdery mildew is a common fungal disease that seriously jeopardizes the value of numerous species, including peonies as a crop. In order to provide a basis for the prevention and treatment of peony powdery mildew, we examined the microbial diversity, the malondialdehyde (MDA) concentrations and antioxidant enzyme activities of peony leaves infected with three levels of powdery mildew to determine any modifications to the leaf's antioxidant enzyme systems and microbial community structure following the onset of disease. The results show that the MDA content rose as the degree of infection became worse. Antioxidant enzyme activity rose and then declined. Following the initiation of powdery mildew, fungal community diversity decreased, whereas there was not any appreciable change in bacterial communities according to microbial diversity sequencing. The relative abundance of more than half of fungal species decreased, with the bacterial genera displaying both abundant and diminished communities with less pronounced alterations in their community structure after the disease spread. Significant different taxa that were critical to the organization of each microbiome were found. Correlation analysis showed that the relative abundance of powdery mildew pathogenic fungal genus Erysiphe was correlated with those of 11 fungal genera and one bacterial genus. Among them, Aureobasidium , Neosetophoma and Sclerostagonospora showed significant positive correlations with Erysiphe and MDA.
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Claims 9
Claim · model-written summary
Leaf MDA content rose with worsening powdery mildew infection.
- Taxon
- Paeonia lactiflora
Paeonia lactiflorat0 - Treatment
- degree of infectione0
- Outcome
- MDA contente0
- Direction
- rosee0
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The results show that the MDA content rose as the degree of infection became worse.”
t0“Paeonia lactiflora”
Claim · model-written summary
Antioxidant enzyme activity first rose and then declined.
Not reportedTaxon
Verbatim
e0“Antioxidant enzyme activity rose and then declined.”
Claim · model-written summary
Fungal community diversity declined after powdery mildew began.
Not reportedTaxonComparator
Verbatim
e0“Following the initiation of powdery mildew, fungal community diversity decreased, whereas there was not any appreciable change in bacterial communities according to microbial diversity sequencing.”
Claim · model-written summary
Bacterial communities showed no appreciable change after mildew onset.
Not reportedTaxonComparator
Verbatim
e0“Following the initiation of powdery mildew, fungal community diversity decreased, whereas there was not any appreciable change in bacterial communities according to microbial diversity sequencing.”
Claim · model-written summary
Relative abundance of more than half the fungal species fell after disease spread.
Not reportedTaxon
Verbatim
e0“The relative abundance of more than half of fungal species decreased, with the bacterial genera displaying both abundant and diminished communities with less pronounced alterations in their community structure after the disease spread.”
Claim · model-written summary
Bacterial genera showed smaller and mixed abundance changes after disease spread.
Not reportedTaxon
Verbatim
e0“the bacterial genera displaying both abundant and diminished communities with less pronounced alterations in their community structure after the disease spread.”
Claim · model-written summary
Significantly different taxa important to each microbiome organization were found.
- Outcome
- different taxae0
Not reportedTaxon
Verbatim
e0“Significant different taxa that were critical to the organization of each microbiome were found.”
Claim · model-written summary
Erysiphe abundance correlated with 11 fungal genera and one bacterial genus.
- Outcome
- relative abundance of powdery mildew pathogenic fungal genus Erysiphee0
ErysipheNot reportedTaxonDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the relative abundance of powdery mildew pathogenic fungal genus Erysiphe was correlated with those of 11 fungal genera and one bacterial genus.”
Claim · model-written summary
Aureobasidium, Neosetophoma and Sclerostagonospora had positive correlations with Erysiphe and MDA.
Not reportedTaxon
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Aureobasidium , Neosetophoma and Sclerostagonospora showed significant positive correlations with Erysiphe and MDA.”