Abstract
Huanglongbing (HLB) is a severe citrus disease that results in significant yield loss, caused by the phloem-dwelling pathogen Candidatus Liberibacter asiaticus ( C Las). Currently, antibiotics including penicillin, chloromycetin, and streptomycin are extensively utilized for the control of HLB in citrus production. However, various issues have emerged following the application of antibiotics, including the development of resistant microorganisms in soil and the accumulation of antibiotic residues in fruits. Consequently, there is an urgent need for alternative environmentally friendly methods for HLB control. In this study, the curative effects of Bacillus amyloliquefaciens strain HN11 and Arbuscular Mycorrhizal Fungi (AMF) on HLB were investigated. The HN11 strain and AMF demonstrated stable colonization within the interior of citrus roots. Moreover, HN11+AMF inoculation promoted the growth of HLB-infected citrus trees, accompanied by the decrease in C Las titers, reduction in H 2 O 2 content, callus deposition, starch content, and ion leakage, as well as improvements in antioxidant enzyme activity indicators. The curative effects of HN11+AMF inoculation on HLB were also confirmed through field efficacy experiments. Moreover, HN11+AMF inoculation was identified to modify the composition and functions of root-soil bacterial and fungal microbial communities. These findings indicate that the use of HN11+AMF inoculation may serve as a promising control strategy for HLB management.
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Claims 8
Claim · model-written summary
HN11 colonized citrus roots.
CitrusOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The HN11 strain and AMF demonstrated stable colonization within the interior of citrus roots”
Claim · model-written summary
AMF colonized citrus roots.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The HN11 strain and AMF demonstrated stable colonization within the interior of citrus roots”
Claim · model-written summary
HN11 and AMF inoculation promoted growth of HLB infected citrus trees.
- Treatment
- HN11+AMF inoculatione0
- Interactor
- HN11e0symbiont
- Second interactor
- AMFe0symbiont
- Outcome
- growth of HLB-infected citrus treese0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HN11+AMF inoculation promoted the growth of HLB-infected citrus trees”
Claim · model-written summary
The inoculation decreased C Las titers.
- Treatment
- HN11+AMF inoculatione0
- Interactor
- C Lase0pathogen
- Second interactor
- HN11e0symbiont
- Outcome
- C Las titerse0
- Direction
- decreasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HN11+AMF inoculation promoted the growth of HLB-infected citrus trees, accompanied by the decrease in C Las titers”
e1“pathogen Candidatus Liberibacter asiaticus ( C Las)”
Claim · model-written summary
The inoculation reduced H 2 O 2, callus deposition, starch and ion leakage.
- Treatment
- HN11+AMF inoculatione0
- Interactor
- HN11e0symbiont
- Second interactor
- AMFe0symbiont
- Outcome
- H 2 O 2 content, callus deposition, starch content, and ion leakagee0
- Direction
- reductione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HN11+AMF inoculation promoted the growth of HLB-infected citrus trees, accompanied by the decrease in C Las titers, reduction in H 2 O 2 content, callus deposition, starch content, and ion leakage”
Claim · model-written summary
The inoculation improved antioxidant enzyme activity indicators.
- Treatment
- HN11+AMF inoculatione0
- Interactor
- HN11e0symbiont
- Second interactor
- AMFe0symbiont
- Outcome
- antioxidant enzyme activity indicatorse0
- Direction
- improvementse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HN11+AMF inoculation promoted the growth of HLB-infected citrus trees, accompanied by the decrease in C Las titers, reduction in H 2 O 2 content, callus deposition, starch content, and ion leakage, as well as improvements in antioxidant enzyme activity indicators”
Claim · model-written summary
Field tests confirmed curative effects on HLB.
- Interactor
- C Lase2pathogen
- Outcome
- curative effects of HN11+AMF inoculation on HLBe0
- Setting
- field efficacy experimentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“curative effects of HN11+AMF inoculation on HLB were also confirmed through field efficacy experiments”
e1“HLB in citrus production”
e2“decrease in C Las titers”
Claim · model-written summary
Inoculation modified root-soil bacterial and fungal community composition and functions.
- Treatment
- HN11+AMF inoculatione0
- Interactor
- HN11e0symbiont
- Second interactor
- AMFe0symbiont
- Outcome
- composition and functions of root-soil bacterial and fungal microbial communitiese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“HN11+AMF inoculation was identified to modify the composition and functions of root-soil bacterial and fungal microbial communities”
e1“citrus roots”
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