Paper · 2015 · International Journal of Agriculture and Biology

Biocontrol and Salinity Tolerance Potential of Azospirillum lipoferum and its Inoculation Effect in Wheat Crop

Roomina Mazhar; Noshin Ilyas; Maimona Saeed; et al.

13
claims
22
verbatim quotes
28
citations
3
research areas
✓
Open access

Abstract

Azospirillum lipoferum strain (GQ 255949) exhibits the ability to mitigate stress conditions. The present study was carried out to evaluate the biocontrol and salt tolerance potential of A. lipoferum and to examine its ability to mitigate salt stress in wheat crop when inoculated. A. lipoferum has shown strong biocontrol potential against Aspergillus niger and Pseudomonass spp. Strain exhibited the survival efficiency uptill 150 mM NaCl and also showed production of different osmolytes such as proline, soluble protein, soluble sugars and Super oxide dismutase while growing under saline conditions. Although salinity affected growth and metabolism of wheat, A. lipoferum inoculation significantly ameliorated its effects by improving the germination and plant growth, particularly under higher salinity levels (50 mM, 100 mM and 150 mM NaCl). Maximum impact of inoculation was observed at 150 mM NaCl. Chlorophyll content and membrane stability improved with inoculation resulting in 38.6% and 15.3% at 150 mM NaCl. Highest increase in concentration of osmolytes was 35.6% in proline, 28% in soluble sugars, in inoculated plants as compared an un-inoculated wheat plant under saline condition. It is concluded from the present findings that A. lipoferum strain (GQ 255949) has potential to promote growth of wheat plants under saline conditions.

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Claims 13

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Azospirillum lipoferum showed antagonism toward Aspergillus niger.

Interactor
Aspergillus nigerAspergillus nigere0pathogen
Second interactor
A. lipoferumAzospirillum lipoferume0biocontrol_agent
Outcome
biocontrol potential against Aspergillus nigere0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗
Aspergillus niger
Aspergillus niger · InteractorNo machine-readable author provided. Y tambe assumed (based on copyright claims). · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A. lipoferum has shown strong biocontrol potential against Aspergillus niger”

✓ located verbatim in the source · abstract, characters 282–358 · show in text ↑
t0

“Wheat Crop”

✓ located verbatim in the source · title, characters 100–110 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Azospirillum lipoferum showed antagonism toward Pseudomonass spp.

Interactor
Pseudomonass spp.e0pathogen
Second interactor
A. lipoferumAzospirillum lipoferume0biocontrol_agent
Outcome
biocontrol potential against Aspergillus niger and Pseudomonass spp.e0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A. lipoferum has shown strong biocontrol potential against Aspergillus niger and Pseudomonass spp.”

✓ located verbatim in the source · abstract, characters 282–380 · show in text ↑
t0

“Wheat Crop”

✓ located verbatim in the source · title, characters 100–110 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The bacterial strain survived up to 150 mM NaCl.

Interactor
Azospirillum lipoferumAzospirillum lipoferumt0symbiont
Outcome
Strain exhibited the survival efficiencye0
Value
150 mM NaCle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Strain exhibited the survival efficiency uptill 150 mM NaCl”

✓ located verbatim in the source · abstract, characters 381–440 · show in text ↑
t0

“Azospirillum lipoferum and its Inoculation Effect in Wheat Crop”

✓ located verbatim in the source · title, characters 47–110 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The bacterial strain produced proline, soluble protein and soluble sugars under saline conditions.

Interactor
Azospirillum lipoferumAzospirillum lipoferumt0symbiont
Outcome
production of different osmolytes such as proline, soluble protein, soluble sugarse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“production of different osmolytes such as proline, soluble protein, soluble sugars”

✓ located verbatim in the source · abstract, characters 457–539 · show in text ↑
t0

“Azospirillum lipoferum and its Inoculation Effect in Wheat Crop”

✓ located verbatim in the source · title, characters 47–110 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The bacterial strain produced superoxide dismutase under saline conditions.

Interactor
Azospirillum lipoferumAzospirillum lipoferumt0symbiont
Outcome
Super oxide dismutasee0
Qualifier
saline conditionse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Super oxide dismutase while growing under saline conditions”

✓ located verbatim in the source · abstract, characters 544–603 · show in text ↑
t0

“Azospirillum lipoferum and its Inoculation Effect in Wheat Crop”

✓ located verbatim in the source · title, characters 47–110 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Salinity impaired wheat growth and metabolism.

Treatment
salinitye0
Outcome
growth and metabolism of wheate0

Not reportedComparatorDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“salinity affected growth and metabolism of wheat”

✓ located verbatim in the source · abstract, characters 614–662 · show in text ↑
Intervention effectobservedoriginal resultpositivesignificant (as stated)measured

Claim · model-written summary

Azospirillum inoculation significantly improved wheat germination and growth under high salinity.

Treatment
A. lipoferum inoculatione0
Interactor
A. lipoferumAzospirillum lipoferume0symbiont
Outcome
germination and plant growthe0
Direction
improvinge0
Qualifier
higher salinity levels (50 mM, 100 mM and 150 mM NaCl)e0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A. lipoferum inoculation significantly ameliorated its effects by improving the germination and plant growth, particularly under higher salinity levels (50 mM, 100 mM and 150 mM NaCl)”

✓ located verbatim in the source · abstract, characters 664–847 · show in text ↑
t0

“Wheat Crop”

✓ located verbatim in the source · title, characters 100–110 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The largest inoculation effect was at 150 mM NaCl.

Outcome
Maximum impact of inoculatione0
Direction
Maximume0
Qualifier
150 mM NaCle0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Maximum impact of inoculation was observed at 150 mM NaCl”

✓ located verbatim in the source · abstract, characters 849–906 · show in text ↑
t0

“Wheat Crop”

✓ located verbatim in the source · title, characters 100–110 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation improved chlorophyll content by 38.6% at 150 mM NaCl.

Treatment
inoculatione0
Outcome
Chlorophyll contente0
Direction
improvede0
Value
38.6%e0
Qualifier
150 mM NaCle0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Chlorophyll content and membrane stability improved with inoculation resulting in 38.6% and 15.3% at 150 mM NaCl”

✓ located verbatim in the source · abstract, characters 908–1020 · show in text ↑
t0

“Wheat Crop”

✓ located verbatim in the source · title, characters 100–110 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Inoculation improved membrane stability by 15.3% at 150 mM NaCl.

Treatment
inoculatione0
Outcome
membrane stabilitye0
Direction
improvede0
Value
15.3%e0
Qualifier
150 mM NaCle0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Chlorophyll content and membrane stability improved with inoculation resulting in 38.6% and 15.3% at 150 mM NaCl”

✓ located verbatim in the source · abstract, characters 908–1020 · show in text ↑
t0

“Wheat Crop”

✓ located verbatim in the source · title, characters 100–110 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat proline concentration rose 35.6% with inoculation under salinity.

Treatment
inoculated plantse0
Outcome
prolinee0
Direction
increasee0
Value
35.6%e0
Qualifier
saline conditione0
Comparator
un-inoculated wheat plante0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Highest increase in concentration of osmolytes was 35.6% in proline, 28% in soluble sugars, in inoculated plants as compared an un-inoculated wheat plant under saline condition”

✓ located verbatim in the source · abstract, characters 1022–1198 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Wheat soluble sugars rose 28% with inoculation under salinity.

Treatment
inoculated plantse0
Outcome
soluble sugarse0
Direction
increasee0
Value
28%e0
Qualifier
saline conditione0
Comparator
un-inoculated wheat plante0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Highest increase in concentration of osmolytes was 35.6% in proline, 28% in soluble sugars, in inoculated plants as compared an un-inoculated wheat plant under saline condition”

✓ located verbatim in the source · abstract, characters 1022–1198 · show in text ↑
Recommendationauthor interpretationoriginal resultpositivebasis n/a

Claim · model-written summary

The authors conclude the strain can promote wheat growth under salinity.

Interactor
A. lipoferumAzospirillum lipoferume0symbiont
Outcome
promote growth of wheat plants under saline conditionse0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Triticum aestivum
Triticum aestivum · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“A. lipoferum strain (GQ 255949) has potential to promote growth of wheat plants under saline conditions”

✓ located verbatim in the source · abstract, characters 1247–1350 · show in text ↑

Azospirillum lipoferum · growth · Triticum aestivum (wheat)Results agree

3 papers: 3 positive, 0 negative or no effect

2 papers in the same direction as this paper

  1. positive
  2. positive
See all 3 papers →

inoculation · physiology: oxidative · Triticum aestivum (wheat)Positive and negative results

50 papers: 47 positive, 3 negative or no effect

46 papers in the same direction as this paper · 3 in the opposite direction

  1. negative
  2. no effect
  3. negative

46 papers more in this group

See all 50 papers →

inoculation · physiology: pigments · Triticum aestivum (wheat)Positive and negative results

82 papers: 76 positive, 6 negative or no effect

75 papers in the same direction as this paper · 5 in the opposite direction · 1 reporting no difference from an alternative

  1. no effect
  2. negative
  3. no effect

78 papers more in this group

See all 82 papers →

salinity · growth · Triticum aestivum (wheat)Positive and negative results

377 papers: 49 positive, 328 negative or no effect

327 papers in the same direction as this paper · 49 in the opposite direction

  1. negative
  2. positive
  3. positive

373 papers more in this group

See all 377 papers →

inoculation · growth · Triticum aestivum (wheat)Positive and negative results

532 papers: 476 positive, 56 negative or no effect

475 papers in the same direction as this paper · 55 in the opposite direction · 1 reporting no difference from an alternative

  1. positive
  2. positive
  3. positive

528 papers more in this group

See all 532 papers →

inoculation · physiology: osmolytes · Triticum aestivum (wheat)Results agree

42 papers: 42 positive, 0 negative or no effect

41 papers in the same direction as this paper

  1. positive
  2. positive
  3. positive

38 papers more in this group

See all 42 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.