Abstract
Rust rot and root rot of ginseng are common soil-borne diseases with an annual incidence of 20–50%. Here, a strain of Streptomyces werraensis, F3, isolated from ginseng rhizosphere was evaluated for its antifungal activity against ginseng root rot and rust rot-causing pathogens and for its growth-promoting properties. To further assess the potential agricultural use of F3, a pot experiment was performed using ginseng. The results showed that the inhibition rates of F3 bacterial suspension against the mycelial growth of rust rot and root rot pathogens in ginseng were 66.7% and 65.5%, respectively. Compared with the negative control, the germination concise vigour index of ginseng seed increased by 7.25 units upon treatment of the ginseng soil with F3, which could secrete indoleacetic acid and effectively promote the germination of ginseng. The pot experiment proved that F3, when applied as a biological control bacterial agent, improved the pH, organic matter, rapidly available nitrogen, available phosphorus, and available potassium, and the microbial community structure of the soil exposed to the disease for varying time periods. S. werraensis F3 has great potential to be commercialised as a biological control agents and a plant growth-promoting agent to effectively manage ginseng rust rot and root rot diseases.
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Claims 8
Claim · model-written summary
F3 inhibited ginseng rust rot pathogen mycelial growth by 66.7%.
- Taxon
- ginseng
Panax ginsenge0 - Treatment
- F3 bacterial suspensione0
- Interactor
- rust rote0pathogen
- Outcome
- mycelial growth of rust rote0
- Direction
- inhibitione0
- Value
- 66.7%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibition rates of F3 bacterial suspension against the mycelial growth of rust rot and root rot pathogens in ginseng were 66.7% and 65.5%, respectively”
Claim · model-written summary
F3 inhibited ginseng root rot pathogen mycelial growth by 65.5%.
- Taxon
- ginsengPanax ginsenge0
- Treatment
- F3 bacterial suspensione0
- Interactor
- root rote0pathogen
- Outcome
- root rot pathogense0
- Direction
- inhibitione0
- Value
- 65.5%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inhibition rates of F3 bacterial suspension against the mycelial growth of rust rot and root rot pathogens in ginseng were 66.7% and 65.5%, respectively”
Claim · model-written summary
F3 soil treatment increased the ginseng seed germination vigour index by 7.25 units.
- Taxon
- ginsengPanax ginsenge0
- Treatment
- treatment of the ginseng soil with F3e0
- Outcome
- germination concise vigour indexe0
- Direction
- increasede0
- Value
- 7.25 unitse0
- Comparator
- negative controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the negative control, the germination concise vigour index of ginseng seed increased by 7.25 units upon treatment of the ginseng soil with F3”
Claim · model-written summary
F3 secreted indoleacetic acid.
- Taxon
- ginsengPanax ginsenge0
- Interactor
- F3e0biocontrol_agent
- Outcome
- secrete indoleacetic acide0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“ginseng soil with F3, which could secrete indoleacetic acid”
Claim · model-written summary
F3 improved soil pH and organic matter in diseased ginseng soil.
- Taxon
- ginsengPanax ginsengt0
- Treatment
- F3e0
- Interactor
- F3e0biocontrol_agent
- Outcome
- pH, organic mattere0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F3, when applied as a biological control bacterial agent, improved the pH, organic matter, rapidly available nitrogen, available phosphorus, and available potassium, and the microbial community structure of the soil exposed to the disease for varying time periods”
t0“ginseng”
Claim · model-written summary
F3 improved rapidly available nitrogen, available phosphorus and available potassium in diseased ginseng soil.
- Taxon
- ginsengPanax ginsengt0
- Treatment
- F3e0
- Outcome
- rapidly available nitrogen, available phosphorus, and available potassiume0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F3, when applied as a biological control bacterial agent, improved the pH, organic matter, rapidly available nitrogen, available phosphorus, and available potassium, and the microbial community structure of the soil exposed to the disease for varying time periods”
t0“ginseng”
Claim · model-written summary
F3 improved microbial community structure in diseased ginseng soil.
- Taxon
- ginsengPanax ginsengt0
- Treatment
- F3e0
- Outcome
- microbial community structuree0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“F3, when applied as a biological control bacterial agent, improved the pH, organic matter, rapidly available nitrogen, available phosphorus, and available potassium, and the microbial community structure of the soil exposed to the disease for varying time periods”
t0“ginseng”
Claim · model-written summary
The authors suggest F3 for management of ginseng rust rot and root rot.
- Taxon
- ginsengPanax ginsenge0
- Outcome
- manage ginseng rust rot and root rot diseasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“S. werraensis F3 has great potential to be commercialised as a biological control agents and a plant growth-promoting agent to effectively manage ginseng rust rot and root rot diseases”