Abstract
The region around the plant root referred to as the rhizosphere, is the zone where various microbial activity occurs. It performs crucial functions such as increasing the uptake of nutrients for plant development and preventing plant against plant pathogens. Keeping in mind the beneficial role performed by rhizospheric microorganisms, rhizobacterial species were isolated from the maize and soybean plant's rhizosphere. The isolated microorganisms were evaluated for their biochemical characteristics, plant growth-promoting potentials, tolerance to different environmental conditions, and their antifungal activity against Fusarium graminearum, a fungal pathogen that infects maize. The rhizobacterial isolates with multiple plant growth-promoting potentials were identified as Bacillus spp (80.77%), Rhodocyclaceae bacterium (3.85%), Enterococcus spp (3.85%). Massilia spp (3.85%. and Pseudomonas (7.69%) species based on their 16S rRNA molecular characterization. The bacterial isolates possessed antifungal activities against Fusarium graminearum, promote maize and soybeans seed under laboratory conditions, and exhibited different levels of tolerance to pH, temperature, salt, and heavy metal. Based on this, the whole genome sequencing of Bacillus sp. OA1, Pseudomonas rhizosphaerea OA2, and Pseudomonas sp. OA3 was performed using Miseq Illumina system to determine the functional genes and secondary metabolites responsible for their plant growth-promoting potential Thus, the result of this research revealed that the selected bacterial isolates possess plant growth-promoting potentials that can make them a potential candidate to be employed as microbial inoculants for protecting plants against phytopathogens, environmental stress and increasing plant growth and productivity.
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Claims 9
Claim · model-written summary
Growth-promoting isolates were identified as Bacillus spp at 80.77%.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The rhizobacterial isolates with multiple plant growth-promoting potentials were identified as Bacillus spp (80.77%)”
e1“maize and soybean plant's rhizosphere”
Claim · model-written summary
Growth-promoting isolates included Rhodocyclaceae bacterium at 3.85%.
- Interactor
- Rhodocyclaceae bacteriumRhodocyclaceae bacteriume0symbiont
- Outcome
- Rhodocyclaceae bacteriume0
- Value
- 3.85%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rhodocyclaceae bacterium (3.85%)”
e1“maize and soybean plant's rhizosphere”
Claim · model-written summary
Growth-promoting isolates included Enterococcus spp at 3.85%.
- Interactor
- Enterococcus spp
Enterococcuse0symbiont - Outcome
- Enterococcus sppe0
- Value
- 3.85%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Enterococcus spp (3.85%)”
e1“maize and soybean plant's rhizosphere”
Claim · model-written summary
Growth-promoting isolates included Massilia spp at 3.85%.
MassiliaOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Massilia spp (3.85%.”
e1“maize and soybean plant's rhizosphere”
Claim · model-written summary
Growth-promoting isolates included Pseudomonas species at 7.69%.
- Interactor
- Pseudomonas
Pseudomonase0symbiont - Outcome
- Pseudomonase0
- Value
- 7.69%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Pseudomonas (7.69%) species”
e1“maize and soybean plant's rhizosphere”
Claim · model-written summary
The bacterial isolates inhibited Fusarium graminearum.
- Interactor
- Fusarium graminearum
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=60)
Fusarium graminearume0pathogen - Second interactor
- bacterial isolatese0biocontrol_agent
- Outcome
- antifungal activities against Fusarium graminearume0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_on_Corn_(Zea_mays)_at_Waimea%2C_Hawaii.jpg?width=500)
Verbatim
e0“The bacterial isolates possessed antifungal activities against Fusarium graminearum”
e1“a fungal pathogen that infects maize”
Claim · model-written summary
The bacterial isolates promoted maize seed under laboratory conditions.
- Organ / stage
- seede0
- Treatment
- bacterial isolatese0
- Interactor
- bacterial isolatese0symbiont
- Outcome
- maizee0
- Direction
- promotee0
- Setting
- laboratory conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacterial isolates possessed antifungal activities against Fusarium graminearum, promote maize and soybeans seed under laboratory conditions”
Claim · model-written summary
The bacterial isolates promoted soybean seed under laboratory conditions.
- Taxon
- soybeans
Glycine maxe0 - Treatment
- bacterial isolatese0
- Interactor
- bacterial isolatese0symbiont
- Outcome
- soybeans seede0
- Direction
- promotee0
- Setting
- laboratory conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The bacterial isolates possessed antifungal activities against Fusarium graminearum, promote maize and soybeans seed under laboratory conditions”
Claim · model-written summary
The bacterial isolates showed differing tolerance to pH, temperature, salt and heavy metal.
- Interactor
- bacterial isolatese2symbiont
- Outcome
- different levels of tolerance to pH, temperature, salt, and heavy metale0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exhibited different levels of tolerance to pH, temperature, salt, and heavy metal”
e1“maize and soybean plant's rhizosphere”
e2“The bacterial isolates possessed antifungal activities”
The same questions in other papers
inoculation · organism · Glycine max (soybean)Positive and negative results
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- no effect
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See all 33 papers →inoculation · organism · Zea mays (maize)Positive and negative results
33 papers in the same direction as this paper · 6 in the opposite direction
- no effect
- no effect
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See all 40 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.