Abstract
Co-aggregation is the result of cell-to-cell recognition between distinct cell types. Macroscopically, this phenomenon can be detected as clumping when different types of bacterial cells are mixed and may be intrageneric, intergeneric or multigeneric in nature. Co-aggregation was studied multi-generically in Azospirillum brasilense AZP18 with other plant growth promoting rhizobacterial (PGPR) strains such as Azotobacter chroococcum MTCC446, Azorhizobium caulinodans ORS571, Bacillus megaterium MTCC3353 and Pseudomonas fluorescens MTCC4828. Among the different combinations tried co-aggregation was found to high among Azospirillum AZP18 and Azotobacter MTCC446 strains. Co-aggregation was found to be high at an inoculation level of 107 CFU/㎖ and in stationary phase. Treatment with urea, protease, EDTA (ethylene diamine, tetra acetic acid and heat treatments were found to inhibit co-aggregation. On the other hand sonication treatment was found to increase co-aggregation. Vermiculite sustained the highest survival population after 30 days of incubation at 30 ± 2℃. Inoculation studies showed that the combination of Azospirillum AZP18 and Azotobacter MTCC446 favoured a higher growth and yield in sunflower crop under pot culture conditions.
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Claims 9
Claim · model-written summary
Co-aggregation was high between Azospirillum AZP18 and Azotobacter MTCC446.
- Taxon
- sunflower
Helianthus annuust0 - Interactor
- Azospirillum AZP18e0other
- Second interactor
- Azotobacter MTCC446e0other
- Outcome
- co-aggregatione0
- Direction
- highe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“co-aggregation was found to high among Azospirillum AZP18 and Azotobacter MTCC446 strains”
t0“sunflower”
Claim · model-written summary
Co-aggregation was high at 107 CFU/㎖ inoculation and in stationary phase.
- Taxon
- sunflowerHelianthus annuust0
- Outcome
- Co-aggregatione0
- Direction
- highe0
- Qualifier
- an inoculation level of 107 CFU/㎖ and in stationary phasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Co-aggregation was found to be high at an inoculation level of 107 CFU/㎖ and in stationary phase”
t0“sunflower”
Claim · model-written summary
Urea inhibited co-aggregation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- ureae0
- Outcome
- co-aggregatione0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with urea, protease, EDTA (ethylene diamine, tetra acetic acid and heat treatments were found to inhibit co-aggregation”
t0“sunflower”
Claim · model-written summary
Protease inhibited co-aggregation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- proteasee0
- Outcome
- co-aggregatione0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with urea, protease, EDTA (ethylene diamine, tetra acetic acid and heat treatments were found to inhibit co-aggregation”
t0“sunflower”
Claim · model-written summary
EDTA inhibited co-aggregation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- EDTAe0
- Outcome
- co-aggregatione0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatment with urea, protease, EDTA (ethylene diamine, tetra acetic acid and heat treatments were found to inhibit co-aggregation”
t0“sunflower”
Claim · model-written summary
Heat inhibited co-aggregation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- heat treatmentse0
- Outcome
- co-aggregatione0
- Direction
- inhibite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“heat treatments were found to inhibit co-aggregation”
t0“sunflower”
Claim · model-written summary
Sonication increased co-aggregation.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- sonication treatmente0
- Outcome
- co-aggregatione0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sonication treatment was found to increase co-aggregation”
t0“sunflower”
Claim · model-written summary
Vermiculite sustained the highest survival population after 30 days at 30 ± 2℃.
- Taxon
- sunflowerHelianthus annuust0
- Treatment
- Vermiculitee0
- Outcome
- survival populatione0
- Direction
- higheste0
- Qualifier
- after 30 days of incubation at 30 ± 2℃e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Vermiculite sustained the highest survival population after 30 days of incubation at 30 ± 2℃”
t0“sunflower”
Claim · model-written summary
Combined Azospirillum AZP18 and Azotobacter MTCC446 inoculation favored higher sunflower growth and yield in pots.
- Taxon
- sunflowerHelianthus annuuse0
- Treatment
- combination of Azospirillum AZP18 and Azotobacter MTCC446e0
- Interactor
- Azospirillum AZP18e0symbiont
- Second interactor
- Azotobacter MTCC446e0symbiont
- Outcome
- growth and yielde0
- Direction
- highere0
- Setting
- pot culture conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the combination of Azospirillum AZP18 and Azotobacter MTCC446 favoured a higher growth and yield in sunflower crop under pot culture conditions”
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See all 11 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.