Abstract
Abstract We investigated the effect of the combination of the plant-growth-promoting rhizobacteria Azospirillum baldaniorum Sp245 and Ochrobactrum cytisi IPA7.2 on the activity of the pro- and antioxidant systems of potato (Solanum tuberosum L., cv. ‘Nevsky’) microclones osmotically stressed (–0.3 MPa, 7 days) in vitro. Polyethylene glycol itself inhibited plant growth. In the absence of osmotic stress, bacterial inoculation increased shoot length and shoot fresh weight by an average of 34% and root number by 25%. Inoculation contributed to mitigation of osmotic stress by leading to a 22% increase in shoot length. During repair, shoot length and root number in inoculated plants increased by an average of 18%. Under stress, bacterial inoculation resulted in a 25% increase in catalase activity and a 21% increase in leaf proline content. As a result, the leaf content of hydrogen peroxide and malondialdehyde decreased by 60 and 30%, respectively, under stress and on average by 30% upon recovery. Both under stress and during repair, cells of either bacterial strain were visible on plant roots by immunofluorescence microscopy. Thus, bacterial inoculation promotes changes in the antioxidant status of potato microclones under osmotic stress in vitro, reduction of oxidative damage to plants, and faster plant recovery after stress.
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Claims 11
Claim · model-written summary
Polyethylene glycol inhibited potato growth.
- Taxon
- potato
Solanum tuberosumt0 - Treatment
- Polyethylene glycole0
- Outcome
- plant growthe0
- Direction
- inhibitede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Polyethylene glycol itself inhibited plant growth.”
t0“Potato”
Claim · model-written summary
Bacterial inoculation increased shoot length and shoot fresh weight by an average of 34% without osmotic stress.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione0
- Outcome
- shoot length and shoot fresh weighte0
- Direction
- increasede0
- Value
- 34%e0
- Qualifier
- In the absence of osmotic stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the absence of osmotic stress, bacterial inoculation increased shoot length and shoot fresh weight by an average of 34%”
t0“Potato”
Claim · model-written summary
Bacterial inoculation increased root number by 25% without osmotic stress.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione0
- Outcome
- root numbere0
- Direction
- increasede0
- Value
- 25%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the absence of osmotic stress, bacterial inoculation increased shoot length and shoot fresh weight by an average of 34% and root number by 25%.”
t0“Potato”
Claim · model-written summary
Inoculation increased shoot length by 22% under osmotic stress.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- Inoculatione0
- Outcome
- shoot lengthe0
- Direction
- increasee0
- Value
- 22%e0
- Qualifier
- osmotic stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Inoculation contributed to mitigation of osmotic stress by leading to a 22% increase in shoot length.”
t0“Potato”
Claim · model-written summary
During repair, inoculated plants had an average 18% increase in shoot length and root number.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- inoculatede0
- Outcome
- shoot length and root numbere0
- Direction
- increasede0
- Value
- 18%e0
- Qualifier
- During repaire0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During repair, shoot length and root number in inoculated plants increased by an average of 18%.”
t0“Potato”
Claim · model-written summary
Under stress, bacterial inoculation increased catalase activity by 25%.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione0
- Outcome
- catalase activitye0
- Direction
- increasee0
- Value
- 25%e0
- Qualifier
- Under stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress, bacterial inoculation resulted in a 25% increase in catalase activity”
t0“Potato”
Claim · model-written summary
Under stress, bacterial inoculation increased leaf proline content by 21%.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione0
- Outcome
- leaf proline contente0
- Direction
- increasee0
- Value
- 21%e0
- Qualifier
- Under stresse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Under stress, bacterial inoculation resulted in a 25% increase in catalase activity and a 21% increase in leaf proline content.”
t0“Potato”
Claim · model-written summary
Bacterial inoculation decreased leaf hydrogen peroxide content by 60% under stress.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione1
- Outcome
- leaf content of hydrogen peroxidee0
- Direction
- decreasede0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf content of hydrogen peroxide and malondialdehyde decreased by 60 and 30%, respectively, under stress”
t0“Potato”
e1“Under stress, bacterial inoculation resulted in a 25% increase in catalase activity”
Claim · model-written summary
Bacterial inoculation decreased leaf malondialdehyde content by 30% under stress.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione1
- Outcome
- malondialdehydee0
- Direction
- decreasede0
- Value
- 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf content of hydrogen peroxide and malondialdehyde decreased by 60 and 30%, respectively, under stress”
t0“Potato”
e1“Under stress, bacterial inoculation resulted in a 25% increase in catalase activity”
Claim · model-written summary
Leaf hydrogen peroxide and malondialdehyde content decreased on average by 30% during recovery.
- Taxon
- potatoSolanum tuberosumt0
- Treatment
- bacterial inoculatione1
- Outcome
- leaf content of hydrogen peroxide and malondialdehydee0
- Direction
- decreasede0
- Value
- 30%e0
- Qualifier
- upon recoverye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the leaf content of hydrogen peroxide and malondialdehyde decreased by 60 and 30%, respectively, under stress and on average by 30% upon recovery.”
t0“Potato”
e1“Under stress, bacterial inoculation resulted in a 25% increase in catalase activity”
Claim · model-written summary
Both bacterial strains were visible on potato roots under stress and during repair.
- Taxon
- potatoSolanum tuberosumt0
- Organ / stage
- plant rootse0
- Outcome
- cells of either bacterial strain were visible on plant rootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Both under stress and during repair, cells of either bacterial strain were visible on plant roots by immunofluorescence microscopy.”
t0“Potato”
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inoculation · physiology: oxidative · Solanum tuberosum (potato)Results agree
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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.