Abstract
Abstract Common bacterial blight (CBB), caused by Xanthomonas axonopodis pv. phaseoli var. fuscans ( Xapf ), negatively impact common bean production globally. Considering the potential of phosphites to protect plants against different diseases, this study investigated the potential of using manganese (Mn) and zinc (Zn) phosphites in common bean for CBB control. Plants were inoculated with Xapf 48 hr after being sprayed with water (control) and solutions (7.5 ml/L) of Mn and Zn phosphites. The area under common bacterial blight progress curve (AUCBBPC) was significantly lower by 34% and 59% for Mn and Zn phosphite treatments in comparison with the control treatment. The AUCBBPC was significantly reduced by 38% for Zn phosphite‐sprayed plants compared to Mn phosphite treatment. Phosphite‐sprayed plants displayed higher values for area under the curves of net CO 2 assimilation rate, stomatal conductance to water vapour, transpiration rate and internal‐to‐ambient CO 2 concentration ratio than non‐sprayed plants. This indicates the effect of Mn and Zn phosphites in attenuating the photochemical dysfunctions caused by Xapf infection. Moreover, plants sprayed with Mn phosphite displayed higher values for area under the curves of efficiency in capturing the excitation energy of open reaction centres of PSII and electron transport rate than those non‐sprayed indicating their capacity to preserve the capture and the use of the collected energy more efficiently. Lower AUCBBPC for Zn phosphite‐sprayed plants resulted in higher concentrations of total chlorophylls. The Zn phosphite‐sprayed plants showed higher values for area under the curves of β ‐1,3‐glucanase, phenylalanine ammonia‐lyase, polyphenoloxidase, ascorbate peroxidase and superoxide dismutase activities. The Zn phosphite spray primed the plants to enhance their defence response and antioxidant capacity to reduce Xapf ‐triggered oxidative stress with the preservation of the photosynthetic apparatus more efficiently.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Mn phosphite spray lowered the AUCBBPC by 34% relative to the control in common bean.
- Taxon
- common bean
Phaseolus vulgarise0 - Treatment
- Mne1
- Interactor
- Xapfe2pathogen
- Outcome
- area under common bacterial blight progress curve (AUCBBPC)e1
- Direction
- lowere1
- Value
- 34%e1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“The area under common bacterial blight progress curve (AUCBBPC) was significantly lower by 34% and 59% for Mn and Zn phosphite treatments in comparison with the control treatment”
e2“Plants were inoculated with Xapf 48 hr after being sprayed with water (control)”
Claim · model-written summary
Zn phosphite spray lowered the AUCBBPC by 59% relative to the control in common bean.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Zne1
- Interactor
- Xapfe2pathogen
- Outcome
- area under common bacterial blight progress curve (AUCBBPC)e1
- Direction
- lowere1
- Value
- 59%e1
- Comparator
- control treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“The area under common bacterial blight progress curve (AUCBBPC) was significantly lower by 34% and 59% for Mn and Zn phosphite treatments in comparison with the control treatment”
e2“Plants were inoculated with Xapf 48 hr after being sprayed with water (control)”
Claim · model-written summary
Zn phosphite spray lowered the AUCBBPC by 38% relative to Mn phosphite in common bean.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Zn phosphitee1
- Interactor
- Xapfe2pathogen
- Outcome
- AUCBBPCe1
- Direction
- reducede1
- Value
- 38%e1
- Comparator
- Mn phosphite treatmente1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“The AUCBBPC was significantly reduced by 38% for Zn phosphite‐sprayed plants compared to Mn phosphite treatment”
e2“Plants were inoculated with Xapf 48 hr after being sprayed with water (control)”
Claim · model-written summary
Phosphite-sprayed common bean plants had higher AUC values for net CO2 assimilation rate and stomatal conductance than non-sprayed plants.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- phosphitee1
- Outcome
- net CO 2 assimilation rate, stomatal conductance to water vapoure1
- Direction
- highere1
- Comparator
- non‐sprayed plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“Phosphite‐sprayed plants displayed higher values for area under the curves of net CO 2 assimilation rate, stomatal conductance to water vapour, transpiration rate and internal‐to‐ambient CO 2 concentration ratio than non‐sprayed plants”
Claim · model-written summary
Phosphite-sprayed common bean plants had higher AUC values for transpiration rate and internal-to-ambient CO2 ratio than non-sprayed plants.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- phosphitee1
- Outcome
- transpiration rate and internal‐to‐ambient CO 2 concentration ratioe1
- Direction
- highere1
- Comparator
- non‐sprayed plantse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“Phosphite‐sprayed plants displayed higher values for area under the curves of net CO 2 assimilation rate, stomatal conductance to water vapour, transpiration rate and internal‐to‐ambient CO 2 concentration ratio than non‐sprayed plants”
Claim · model-written summary
Mn phosphite-sprayed common bean plants had higher AUC values for PSII excitation-energy capture efficiency and electron transport rate than non-sprayed plants.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Mn phosphitee1
- Outcome
- efficiency in capturing the excitation energy of open reaction centres of PSII and electron transport ratee1
- Direction
- highere1
- Comparator
- non‐sprayede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“plants sprayed with Mn phosphite displayed higher values for area under the curves of efficiency in capturing the excitation energy of open reaction centres of PSII and electron transport rate than those non‐sprayed”
Claim · model-written summary
Lower AUCBBPC in Zn phosphite-sprayed common bean was associated with higher total chlorophyll concentrations.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Zn phosphitee1
- Outcome
- concentrations of total chlorophyllse1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“Lower AUCBBPC for Zn phosphite‐sprayed plants resulted in higher concentrations of total chlorophylls”
Claim · model-written summary
Zn phosphite-sprayed common bean plants had higher AUC values for beta-1,3-glucanase, phenylalanine ammonia-lyase and polyphenoloxidase activities.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Zn phosphitee1
- Outcome
- β ‐1,3‐glucanase, phenylalanine ammonia‐lyase, polyphenoloxidasee1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“The Zn phosphite‐sprayed plants showed higher values for area under the curves of β ‐1,3‐glucanase, phenylalanine ammonia‐lyase, polyphenoloxidase, ascorbate peroxidase and superoxide dismutase activities”
Claim · model-written summary
Zn phosphite-sprayed common bean plants had higher AUC values for ascorbate peroxidase and superoxide dismutase activities.
- Taxon
- common beanPhaseolus vulgarise0
- Treatment
- Zn phosphitee1
- Outcome
- ascorbate peroxidase and superoxide dismutasee1
- Direction
- highere1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in common bean for CBB control”
e1“The Zn phosphite‐sprayed plants showed higher values for area under the curves of β ‐1,3‐glucanase, phenylalanine ammonia‐lyase, polyphenoloxidase, ascorbate peroxidase and superoxide dismutase activities”
The same questions in other papers
zinc atom · disease · Phaseolus vulgaris (common bean)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
manganese atom · physiology: photosynthesis · Phaseolus vulgaris (common bean)Positive and negative results
2 in the opposite direction · 1 reporting no difference from an alternative
- negative
- negative
- no effect
manganese atom · disease · Phaseolus vulgaris (common bean)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- positive
- negative
- negative
2 papers more in this group
See all 6 papers →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.