Abstract
The relative quantitative real-time expression of two expressed sequence tags (ESTs) codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3) was performed for genotypes inoculated with Azospirillum brasilense. Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised under controlled greenhouse conditions, in six treatment groups corresponding to different forms of inoculation and different levels of nitrogen application by top-dressing. The genotypes presented distinct responses to inoculation with A. brasilense. Increases in the expression of ZmNR were observed for the hybrids, while V4 only displayed a greater level of expression when the plants received nitrogenous fertilization by top-dressing and there was no inoculation. The expression of the ZmGln1-3EST was induced by A. brasilense in the hybrids and the variety V4. In contrast, the variety V2 did not respond to inoculation.
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Claims 4
Claim · model-written summary
Azospirillum brasilense inoculation increased ZmNR expression in the commercial hybrids AG7098 and 2B707 in the greenhouse.
- Material
- AG7098 and 2B707e1
- Treatment
- inoculated with Azospirillum brasilenset0
- Interactor
- Azospirillum brasilense
Azospirillum brasilenset0symbiont - Gene
- ZmNRe0
- Outcome
- expression of ZmNRe2
- Direction
- Increasese2
- Setting
- controlled greenhouse conditionse1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3)”
e1“Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised under controlled greenhouse conditions”
e2“Increases in the expression of ZmNR were observed for the hybrids”
t0“maize inoculated with Azospirillum brasilense”
Claim · model-written summary
Synthetic variety V4 showed greater ZmNR expression with nitrogen top-dressing and no inoculation.
- Material
- V4e1
- Treatment
- nitrogenous fertilization by top-dressinge3
- Gene
- ZmNRe0
- Outcome
- level of expressione3
- Direction
- greatere3
- Comparator
- no inoculatione3
- Setting
- controlled greenhouse conditionse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3)”
e1“Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised under controlled greenhouse conditions”
e3“while V4 only displayed a greater level of expression when the plants received nitrogenous fertilization by top-dressing and there was no inoculation”
Claim · model-written summary
Azospirillum brasilense induced ZmGln1-3 expression in the hybrids and in variety V4.
- Material
- the hybrids and the variety V4e4
- Treatment
- A. brasilensee4
- Interactor
- Azospirillum brasilenseAzospirillum brasilenset0symbiont
- Gene
- ZmGln1-3e0
- Outcome
- expression of the ZmGln1-3ESTe4
- Direction
- inducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“codifying for key enzymes in nitrogen metabolism in maize, nitrate reductase (ZmNR), and glutamine synthetase (ZmGln1-3)”
e4“The expression of the ZmGln1-3EST was induced by A. brasilense in the hybrids and the variety V4”
t0“maize inoculated with Azospirillum brasilense”
Claim · model-written summary
Variety V2 did not respond to Azospirillum brasilense inoculation in ZmGln1-3 expression.
- Material
- V2e1
- Treatment
- inoculatione5
- Interactor
- Azospirillum brasilenseAzospirillum brasilenset0symbiont
- Outcome
- responde5
- Direction
- did not responde5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Two commercial single-cross hybrids (AG7098 and 2B707) and two experimental synthetic varieties (V2 and V4) were raised under controlled greenhouse conditions”
e5“In contrast, the variety V2 did not respond to inoculation”
t0“maize inoculated with Azospirillum brasilense”
The same questions in other papers
inoculation · Azospirillum brasilense · Zea mays (maize)Results differ
8 papers in the same direction as this paper · 30 in the opposite direction
- no effect
- positive
- positive
35 papers more in this group
See all 39 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.