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Research article
Yan Dong
Yunnan Agricultural University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-5523-4977
License:
This work is licensed under a CC BY 4.0 License. Read Full License
Background
The succession cropping obstacle of faba bean are main common and increasingly serious. Soil-borne fusarium wilt is one of the most serious diseases threatening faba bean production. Fusarium oxysporum f. sp. fabae (FOF) is the causal agent of fusarium wilt. Fusaric acid (FA), produced by FOF, plays an important role in the occurrence of disease, and intercropping is an effective measure for control of disease and for improving host resistance in plants. Intercropping is a traditional farming measure that uses inter-species interaction to control pests and diseases and increase food production. The objective of the current study was to investigate the physiological and biochemical responses, and mechanisms of tissue structure resistance of intercropped faba beans following exposure to FA.
Results
Results demonstrated that increasing concentrations of FA had greater effects on faba beans and intercropping significantly reduced red ink absorption of faba beans (33.2%), increased water content (3.1%) and increased activity of the root antioxidant enzymes peroxidase (POD) and catalase (CAT) (26.3% and 2.2.%, respectively). Furthermore, increased lignin content and callose deposition in plant vessels were observed (12.5% and 42.7%) when subject to the high concentration of FA (200mg.L-1) stress, respectively. Intercropping resulted in more intact root cell morphology, increased occurrence of intracellular vacuoles, cell wall thickness and the number of mitochondria and rough endoplasmic reticulum.
Conclusions
This study contributes to us to understand the wheat / faba bean intercropping system at the physiological, tissue and subcellular levels to effectively alleviate the wilting effect of Fusarium toxin on faba bean.
Keywords
fusaric acid, intercropping, faba bean, resistance
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A new preprint design is coming!
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This is a preprint, a preliminary version of a manuscript that has not completed peer review at a journal. Research Square does not conduct peer review prior to posting preprints. The posting of a preprint on this server should not be interpreted as an endorsement of its validity or suitability for dissemination as established information or for guiding clinical practice.
Research article
Yan Dong
Yunnan Agricultural University
Corresponding Author
ORCiD: https://orcid.org/0000-0002-5523-4977
Badges
Prescreen
This manuscript passed our Prescreen assessment
Complete author information
Appropriate declaration statements
Potential risks to human health
Prescreen
History
CURRENT STATUS: Posted
View the published article at Plant Pathology.
Version 1
Posted 08 Oct, 2020
No community comments so far
Metrics
Comments: 0
PDF Downloads: ...
HTML Views: ...
License:
This work is licensed under a CC BY 4.0 License. Read Full License
View the published article at Plant Pathology.
Background
The succession cropping obstacle of faba bean are main common and increasingly serious. Soil-borne fusarium wilt is one of the most serious diseases threatening faba bean production. Fusarium oxysporum f. sp. fabae (FOF) is the causal agent of fusarium wilt. Fusaric acid (FA), produced by FOF, plays an important role in the occurrence of disease, and intercropping is an effective measure for control of disease and for improving host resistance in plants. Intercropping is a traditional farming measure that uses inter-species interaction to control pests and diseases and increase food production. The objective of the current study was to investigate the physiological and biochemical responses, and mechanisms of tissue structure resistance of intercropped faba beans following exposure to FA.
Results
Results demonstrated that increasing concentrations of FA had greater effects on faba beans and intercropping significantly reduced red ink absorption of faba beans (33.2%), increased water content (3.1%) and increased activity of the root antioxidant enzymes peroxidase (POD) and catalase (CAT) (26.3% and 2.2.%, respectively). Furthermore, increased lignin content and callose deposition in plant vessels were observed (12.5% and 42.7%) when subject to the high concentration of FA (200mg.L-1) stress, respectively. Intercropping resulted in more intact root cell morphology, increased occurrence of intracellular vacuoles, cell wall thickness and the number of mitochondria and rough endoplasmic reticulum.
Conclusions
This study contributes to us to understand the wheat / faba bean intercropping system at the physiological, tissue and subcellular levels to effectively alleviate the wilting effect of Fusarium toxin on faba bean.
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
This is a list of supplementary files associated with this preprint. Click to download.
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