Abstract
Bacteria belonging to the genus Azospirillum isolated from Cynodon dactylon roots in Israel were compared with Azospirillum brasilense from Brazil and California for their ability to fix nitrogen in association with grasses under greenhouse conditions. The plants were grown in a system which avoided cross inoculation from the inoculated soil to the control, while maintaining the natural soil microflora and humidity level in the soil close to field capacity. The organisms tested significantly increased the dry weight of Zea mays and Setaria italica leaves, the total nitrogen content of these leaves (as measured by the Kjeldahl method), and supported acetylene reduction in intact nonsterile systems as compared with the noninoculated controls. Ethylene production in intact systems could be detected after 6h and was linear for 72h, providing a constant soil temperature (28-32 degrees C) was maintained.
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Claims 6
Claim · model-written summary
Azospirillum inoculation significantly increased leaf dry weight of Zea mays compared with noninoculated controls.
- Organ / stage
- leavese1
- Treatment
- inoculated with Azospirillumt0
- Interactor
- Azospirillum
Azospirillumt0symbiont - Outcome
- dry weighte1
- Direction
- increasede1
- Comparator
- noninoculated controlse3
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“significantly increased the dry weight of Zea mays and Setaria italica leaves”
e3“as compared with the noninoculated controls”
e0“under greenhouse conditions”
t0“inoculated with Azospirillum”
Claim · model-written summary
Azospirillum inoculation significantly increased leaf dry weight of Setaria italica compared with noninoculated controls.
- Taxon
- Setaria italica
Setaria italicae1 - Organ / stage
- leavese1
- Treatment
- inoculated with Azospirillumt0
- Interactor
- AzospirillumAzospirillumt0symbiont
- Outcome
- dry weighte1
- Direction
- increasede1
- Comparator
- noninoculated controlse3
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“significantly increased the dry weight of Zea mays and Setaria italica leaves”
e3“as compared with the noninoculated controls”
e0“under greenhouse conditions”
t0“inoculated with Azospirillum”
Claim · model-written summary
Azospirillum inoculation significantly increased total nitrogen content of Zea mays leaves compared with noninoculated controls.
- Organ / stage
- leavese2
- Treatment
- inoculated with Azospirillumt0
- Interactor
- AzospirillumAzospirillumt0symbiont
- Outcome
- total nitrogen contente2
- Direction
- increasede2
- Comparator
- noninoculated controlse3
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“An increase in nitrogen content of Setaria italica and Zea mays inoculated with Azospirillum”
e2“significantly increased the dry weight of Zea mays and Setaria italica leaves, the total nitrogen content of these leaves (as measured by the Kjeldahl method)”
e3“as compared with the noninoculated controls”
e0“under greenhouse conditions”
Claim · model-written summary
Azospirillum inoculation significantly increased total nitrogen content of Setaria italica leaves compared with noninoculated controls.
- Taxon
- Setaria italicaSetaria italicat0
- Organ / stage
- leavese2
- Treatment
- inoculated with Azospirillumt0
- Interactor
- AzospirillumAzospirillumt0symbiont
- Outcome
- total nitrogen contente2
- Direction
- increasede2
- Comparator
- noninoculated controlse3
- Setting
- greenhouse conditionse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“An increase in nitrogen content of Setaria italica and Zea mays inoculated with Azospirillum”
e2“significantly increased the dry weight of Zea mays and Setaria italica leaves, the total nitrogen content of these leaves (as measured by the Kjeldahl method)”
e3“as compared with the noninoculated controls”
e0“under greenhouse conditions”
Claim · model-written summary
Azospirillum inoculation supported acetylene reduction (nitrogen fixation) in intact nonsterile systems compared with noninoculated controls.
- Taxon
- Setaria italica and Zea maysSetaria italica
Zea mayst0 - Treatment
- inoculated with Azospirillumt0
- Interactor
- AzospirillumAzospirillumt0symbiont
- Outcome
- acetylene reductione4
- Comparator
- noninoculated controlse3
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“An increase in nitrogen content of Setaria italica and Zea mays inoculated with Azospirillum”
e4“supported acetylene reduction in intact nonsterile systems”
e3“as compared with the noninoculated controls”
Claim · model-written summary
Ethylene production in intact systems was detectable after 6 h and linear for 72 h when soil temperature was held constant at 28-32 degrees C.
- Taxon
- Setaria italica and Zea maysSetaria italicaZea mayst0
- Outcome
- Ethylene productione5
- Value
- 6he5
- Qualifier
- constant soil temperature (28-32 degrees C)e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“An increase in nitrogen content of Setaria italica and Zea mays inoculated with Azospirillum”
e5“Ethylene production in intact systems could be detected after 6h and was linear for 72h”
e6“providing a constant soil temperature (28-32 degrees C) was maintained”
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See all 5 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.