Abstract
Azospirillum brasilense is a rhizobacterium that promotes growth and has physiological effects on the development of different crops. This study evaluated the effect of different doses of A. brasilense on the survival, growth and nutrient status of micropropagated sugarcane ( Saccharum spp.) cv. Mex 69–290 plantlets during ex vitro conditions. Sugarcane plantlets were inoculated with control, 0.5, 1, 1.5, and 2 × 10 6 CFU (Colony-Forming Units) per ml of A. brasilense during acclimatization. After 60 days of greenhouse acclimatization, we evaluated the survival percentage, plantlet development, dry matter percentage, chlorophyll content, β-carotene content, and macro and micronutrient content. Results indicate that the inoculation of Saccharum spp. with A. brasilense had dose-dependent effects on the evaluated physiological and development-related variables. The 1 × 10 6 CFU/ml dose of A. brasilense maintained a high survival rate, provided adequate growth and favored N, P, Mg, Mn, and B absorption. However, the 2 × 10 6 CFU/ml dose of A. brasilense had negative effects on survival and development. The symbiotic interaction between A. brasilense and Saccharum spp. during acclimatization represents an alternative to improve plantlet quality before field transplantation. Future research is required on the effect of A. brasilense during the commercial establishment of basic sugarcane seedbeds.
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Claims 6
Claim · model-written summary
Azospirillum inoculation had dose-dependent effects on sugarcane physiology and development.
- Treatment
- inoculation of Saccharum spp. with A. brasilensee0
- Interactor
- A. brasilense
Azospirillum brasilensee0symbiont - Outcome
- physiological and development-related variablese0
SaccharumNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“inoculation of Saccharum spp. with A. brasilense had dose-dependent effects on the evaluated physiological and development-related variables”
Claim · model-written summary
The 1 × 10 6 CFU/ml dose maintained high sugarcane plantlet survival.
- Taxon
- sugarcanet0
- Treatment
- 1 × 10 6 CFU/ml dose of A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- survival ratee0
- Direction
- highe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 1 × 10 6 CFU/ml dose of A. brasilense maintained a high survival rate”
t0“sugarcane (Saccharum spp.) plantlets”
Claim · model-written summary
The 1 × 10 6 CFU/ml dose provided adequate sugarcane growth.
- Taxon
- sugarcanet0
- Treatment
- 1 × 10 6 CFU/ml dose of A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- growthe0
- Direction
- adequatee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 1 × 10 6 CFU/ml dose of A. brasilense maintained a high survival rate, provided adequate growth”
t0“sugarcane (Saccharum spp.) plantlets”
Claim · model-written summary
The 1 × 10 6 CFU/ml dose favored absorption of N, P, Mg, Mn, and B.
- Taxon
- sugarcanet0
- Treatment
- 1 × 10 6 CFU/ml dose of A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- N, P, Mg, Mn, and B absorptione0
- Direction
- favorede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The 1 × 10 6 CFU/ml dose of A. brasilense maintained a high survival rate, provided adequate growth and favored N, P, Mg, Mn, and B absorption”
t0“sugarcane (Saccharum spp.) plantlets”
Claim · model-written summary
The 2 × 10 6 CFU/ml dose negatively affected survival and development.
- Taxon
- sugarcanet0
- Treatment
- 2 × 10 6 CFU/ml dose of A. brasilensee0
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- survival and developmente0
- Direction
- negative effectse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the 2 × 10 6 CFU/ml dose of A. brasilense had negative effects on survival and development”
t0“sugarcane (Saccharum spp.) plantlets”
Claim · model-written summary
The authors present the symbiosis during acclimatization as an option to improve plantlet quality before transplanting.
- Interactor
- A. brasilenseAzospirillum brasilensee0symbiont
- Outcome
- alternative to improve plantlet quality before field transplantatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The symbiotic interaction between A. brasilense and Saccharum spp. during acclimatization represents an alternative to improve plantlet quality before field transplantation”
The same questions in other papers
Azospirillum brasilense · growth · Saccharum officinarum (sugarcane)Positive and negative results
1 paper in the same direction as this paper · 1 in the opposite direction
- positive
- negative
Azospirillum brasilense · nutrient: content · Saccharum officinarum (sugarcane)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.