Abstract
An increasing global population of over 4.5 billion people drives increasing demand for calories—30% of which are satisfied by grain crops, such as maize. High-density farming practices have been implemented but tend to deplete the soil of essential elements resulting in lower nutritional value, notably iron, of cultivated crops. Low iron content in staple crops can contribute over time to severe, even fatal, micronutrient deficiencies. Enhancing grain iron content using post-harvest biofortification strategies can be costly. However, field inoculation using biologics like Azospirillum brasilense (HM053) can be a cost-effective alternative to improving crop nutritional value. Using ion chromatography with chemiluminescence detection, we have shown that maize seeds harvested from outdoor pot-grown plants possessed a four-fold higher iron content as ferrous iron (Fe+2) compared to non-inoculated plants. Seeds from A. brasilense HM053-inoculated plants also contained approximately 13 nmol of ferritin per ground dried weight of kernel compared to 3 nmol from non-inoculated plants. In addition, A. brasilense HM053 inoculation increased crop yield 30–50% relative to non-inoculated plants.
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Claims 3
Claim · model-written summary
Field inoculation with A. brasilense HM053 gave maize seeds a four-fold higher ferrous iron content than non-inoculated plants.
- Organ / stage
- maize seedse1
- Treatment
- field inoculatione2
- Interactor
- Azospirillum brasilense (HM053)
Azospirillum brasilensee2symbiont - Outcome
- iron content as ferrous iron (Fe+2)e1
- Direction
- highere1
- Value
- four-folde1
- Comparator
- non-inoculated plantse1
- Setting
- outdoor pot-grown plantse1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“maize seeds harvested from outdoor pot-grown plants possessed a four-fold higher iron content as ferrous iron (Fe+2) compared to non-inoculated plants”
e2“field inoculation using biologics like Azospirillum brasilense (HM053)”
Claim · model-written summary
Seeds from A. brasilense HM053-inoculated corn plants contained about 13 nmol ferritin per gram of dried kernel, versus 3 nmol in non-inoculated plants.
- Taxon
- Corn
Zea mays subsp. mayst0 - Organ / stage
- kernele3
- Treatment
- A. brasilense HM053-inoculatede3
- Interactor
- A. brasilense HM053Azospirillum brasilensee3symbiont
- Outcome
- ferritine3
- Direction
- higherinferrede3
- Value
- approximately 13 nmole3
- Comparator
- non-inoculated plantse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Crop Yield, Ferritin and Fe(II) boosted by Azospirillum brasilense (HM053) in Corn”
e3“Seeds from A. brasilense HM053-inoculated plants also contained approximately 13 nmol of ferritin per ground dried weight of kernel compared to 3 nmol from non-inoculated plants”
Claim · model-written summary
A. brasilense HM053 inoculation increased crop yield by 30–50% relative to non-inoculated plants.
- Taxon
- CornZea mays subsp. mayst0
- Treatment
- A. brasilense HM053 inoculatione4
- Interactor
- A. brasilense HM053Azospirillum brasilensee4symbiont
- Outcome
- crop yielde4
- Direction
- increasede4
- Value
- 30–50%e4
- Comparator
- non-inoculated plantse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Crop Yield, Ferritin and Fe(II) boosted by Azospirillum brasilense (HM053) in Corn”
e4“A. brasilense HM053 inoculation increased crop yield 30–50% relative to non-inoculated plants”
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