Abstract
Pot experiments were conducted to evaluate the possible roles of nitrogen fixation and/or enhanced mineral uptake by Azospirillum lipoferum and Bacillus polymexa inoculation in improving salt tolerance of maize plants. Plants were inoculated and grown under salt stress (osmotic potential: -0.3, -0.6, -0.9 and -1.2 Mpa). Both microorganisms were able to fix nitrogen up to -0.9 Mpa salinity level accompanied with increased total N-yield compared with the control plants. In order to investigate the role of bacterial inoculation on enhanced mineral uptake, the growth and some physiological parameters of inoculated plants were compared with plants fertilized by K and P foliar application. Plant inoculation with the N2-fixers or plant spraying with KH2PO4 resulted in an increase in fresh and dry matter as well as water content of plants. Treated plants exhibited changed plant mineral content which was associated with increased Mg/K and decreased P/K, Ca/K and Na/K ratios. This was accompanied by accumulation of soluble sugars, amino acids in shoots and roots of plants resulting in a concomitant increase in the osmotic potential of the cell sap as a possible mechanism of adaptation to salinity.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 8
Claim · model-written summary
Both inoculated microorganisms fixed nitrogen up to -0.9 Mpa salinity.
- Interactor
- Azospirillum lipoferum and Bacillus polymexae1symbiont
- Outcome
- fix nitrogene0
- Value
- -0.9 Mpae0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both microorganisms were able to fix nitrogen up to -0.9 Mpa salinity level”
e1“Azospirillum lipoferum and Bacillus polymexa inoculation”
e2“maize plants”
Claim · model-written summary
Inoculated maize had increased total N-yield compared with controls up to -0.9 Mpa salinity.
- Treatment
- Azospirillum lipoferum and Bacillus polymexa inoculatione1
- Interactor
- Azospirillum lipoferum and Bacillus polymexae1symbiont
- Outcome
- total N-yielde0
- Direction
- increasede0
- Qualifier
- -0.9 Mpa salinity levele0
- Comparator
- control plantse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both microorganisms were able to fix nitrogen up to -0.9 Mpa salinity level accompanied with increased total N-yield compared with the control plants”
e1“Azospirillum lipoferum and Bacillus polymexa inoculation”
e2“maize plants”
Claim · model-written summary
Inoculation with N2 fixers increased maize fresh and dry matter and water content.
- Treatment
- Plant inoculation with the N2-fixerse0
- Outcome
- fresh and dry matter as well as water contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant inoculation with the N2-fixers or plant spraying with KH2PO4 resulted in an increase in fresh and dry matter as well as water content of plants”
e1“maize plants”
Claim · model-written summary
Foliar KH2PO4 increased maize fresh and dry matter and water content.
- Treatment
- plant spraying with KH2PO4e0
- Outcome
- fresh and dry matter as well as water contente0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Plant inoculation with the N2-fixers or plant spraying with KH2PO4 resulted in an increase in fresh and dry matter as well as water content of plants”
e1“maize plants”
Claim · model-written summary
Treated maize had an increased Mg/K ratio.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated plants exhibited changed plant mineral content which was associated with increased Mg/K and decreased P/K, Ca/K and Na/K ratios”
e1“maize plants”
Claim · model-written summary
Treated maize had decreased P/K, Ca/K, and Na/K ratios.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treated plants exhibited changed plant mineral content which was associated with increased Mg/K and decreased P/K, Ca/K and Na/K ratios”
e1“maize plants”
Claim · model-written summary
Soluble sugars and amino acids accumulated in maize shoots and roots.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulation of soluble sugars, amino acids in shoots and roots of plants”
e1“maize plants”
Claim · model-written summary
Maize cell sap osmotic potential increased alongside sugar and amino acid accumulation, proposed as salinity adaptation.
- Compound
- soluble sugars, amino acidse0
- Outcome
- osmotic potential of the cell sape0
- Direction
- increasee0
- Qualifier
- possible mechanism of adaptation to salinitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“accumulation of soluble sugars, amino acids in shoots and roots of plants resulting in a concomitant increase in the osmotic potential of the cell sap as a possible mechanism of adaptation to salinity”
e1“maize plants”
The same questions in other papers
Azospirillum lipoferum · nutrient: content · Zea mays (maize)Results agree
1 paper in the same direction as this paper
- positive
inoculation · nutrient: content · Zea mays (maize)Positive and negative results
287 papers in the same direction as this paper · 16 in the opposite direction · 2 reporting no difference from an alternative
- positive
- no effect
- no effect
302 papers more in this group
See all 306 papers →application · growth · Zea mays (maize)Positive and negative results
309 papers in the same direction as this paper · 25 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- no effect
333 papers more in this group
See all 337 papers →inoculation · growth · Zea mays (maize)Positive and negative results
634 papers in the same direction as this paper · 61 in the opposite direction · 3 reporting no difference from an alternative
- positive
- negative
- no effect
695 papers more in this group
See all 699 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.