Abstract
The association between nitrogen-fixing bacteria from the genus Azospirillum and the grasses Zea mays and Setaria italica was investigated in sterilized Leonard-jar assemblies. Nitrogen-fixing bacteria isolated from Cynodon dactylon roots in Israel and Azospirillum brasilense (Sp-7, Sp-80, and Cd) were examined. C(2)H(2) reduction activity was detected in systems containing 0.0 to 0.08 but not in those containing 0.16 gram per liter NH(4)NO(3). The organisms tested significantly increased plant dry weight (50-100%), total N content of leaves (50-100%) and C(2)H(4) production (300-1000 nanomoles C(2)H(4) per plant per hour). Highest C(2)H(2) reduction activities were obtained above 30 C and with high light intensities. Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%). The results obtained in this work clearly demonstrate the potential benefit of inoculating grasses with Azospirillum.
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Claims 11
Claim · model-written summary
Acetylene reduction was detected at 0.0 to 0.08 gram per liter NH(4)NO(3), but not at 0.16 gram per liter.
- Taxon
- Zea mays and Setaria italica
Setaria italica
Zea mayst0 - Interactor
- Azospirillum spp.
Azospirillumt0symbiont - Outcome
- C(2)H(2) reduction activitye0
- Qualifier
- 0.0 to 0.08 but not in those containing 0.16 gram per liter NH(4)NO(3)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“C(2)H(2) reduction activity was detected in systems containing 0.0 to 0.08 but not in those containing 0.16 gram per liter NH(4)NO(3).”
t0“Zea mays and Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
The tested Azospirillum organisms significantly increased plant dry weight by 50-100%.
- Taxon
- Zea mays and Setaria italicaSetaria italicaZea mayst0
- Treatment
- The organisms testede0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- plant dry weighte0
- Direction
- increasede0
- Value
- 50-100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The organisms tested significantly increased plant dry weight (50-100%), total N content of leaves (50-100%) and C(2)H(4) production (300-1000 nanomoles C(2)H(4) per plant per hour).”
t0“Zea mays and Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
The tested organisms significantly increased leaf total nitrogen content by 50-100%.
- Taxon
- Zea mays and Setaria italicaSetaria italicaZea mayst0
- Treatment
- The organisms testede0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- total N content of leavese0
- Direction
- increasede0
- Value
- 50-100%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The organisms tested significantly increased plant dry weight (50-100%), total N content of leaves (50-100%) and C(2)H(4) production (300-1000 nanomoles C(2)H(4) per plant per hour).”
t0“Zea mays and Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
The tested organisms significantly increased ethylene production to 300-1000 nanomoles per plant per hour.
- Taxon
- Zea mays and Setaria italicaSetaria italicaZea mayst0
- Treatment
- The organisms testede0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- C(2)H(4) productione0
- Direction
- increasede0
- Value
- 300-1000 nanomoles C(2)H(4) per plant per houre0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The organisms tested significantly increased plant dry weight (50-100%), total N content of leaves (50-100%) and C(2)H(4) production (300-1000 nanomoles C(2)H(4) per plant per hour).”
t0“Zea mays and Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Acetylene reduction activity was highest above 30 C and at high light intensities.
- Taxon
- Zea mays and Setaria italicaSetaria italicaZea mayst0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- C(2)H(2) reduction activitiese0
- Direction
- Higheste0
- Setting
- above 30 C and with high light intensitiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Highest C(2)H(2) reduction activities were obtained above 30 C and with high light intensities.”
t0“Zea mays and Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Setaria italica dry weight increased 80% in sand.
- Taxon
- S. italicaSetaria italicae0
- Treatment
- Azospirillum spp.t0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- dry weighte0
- Direction
- increasese0
- Value
- 80%e0
- Setting
- sande0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%).”
t0“Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Setaria italica nitrogen content increased 150% in sand.
- Taxon
- S. italicaSetaria italicae0
- Treatment
- Azospirillum spp.t0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- nitrogen (N) contente0
- Direction
- increasese0
- Value
- 150%e0
- Setting
- sande0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%).”
t0“Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Setaria italica dry weight increased 80% in sandy loam soil.
- Taxon
- S. italicaSetaria italicae0
- Treatment
- Azospirillum spp.t0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- dry weighte0
- Direction
- increasese0
- Value
- 80%e0
- Setting
- sandy loam soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%).”
t0“Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Setaria italica nitrogen content increased 75% in sandy loam soil.
- Taxon
- S. italicaSetaria italicae0
- Treatment
- Azospirillum spp.t0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- nitrogen (N) contente0
- Direction
- increasese0
- Value
- 75%e0
- Setting
- sandy loam soile0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%).”
t0“Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Setaria italica dry weight increased 37% in loess.
- Taxon
- S. italicaSetaria italicae0
- Treatment
- Azospirillum spp.t0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- dry weighte0
- Direction
- increasese0
- Value
- 37%e0
- Setting
- loesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%).”
t0“Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
Claim · model-written summary
Setaria italica nitrogen content increased 25% in loess.
- Taxon
- S. italicaSetaria italicae0
- Treatment
- Azospirillum spp.t0
- Interactor
- Azospirillum spp.Azospirillumt0symbiont
- Outcome
- nitrogen (N) contente0
- Direction
- increasese0
- Value
- 25%e0
- Setting
- loesse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Significant increases in S. italica dry weight (DW) and nitrogen (N) content were observed in sand (DW = 80%, N = 150%), sandy loam soil (DW = 80%, N = 75%) and loess (DW = 37%, N = 25%).”
t0“Setaria italica Associated with Nitrogen-fixing Azospirillum spp.”
The same questions in other papers
Azospirillum · growth · Setaria italica (foxtail millet)Results agree
7 papers in the same direction as this paper
- positive
- positive
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4 papers more in this group
See all 8 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.