Abstract
Abstract The effect of chitosan–caffeic acid (Ch–CA) conjugate separately and in combination with a mixture of Bacillus subtilis 47 on the plant defense against PVY under optimal hydration and water deficit in soil was evaluated. The treatments of Ch–CA and Ch–CA+B. subtilis 47 on healthy potato plants under optimal soil moisture conditions demonstrated the accumulation of proline and phenolic compounds, as well as the activation of PPO, which collectively led to an increase in the nonspecific plant defenses. The application of Ch–CA resulted in a reduction of PVY infection in potato plants grown under both optimal and soil moisture-deficient conditions and led to an increase in the potato mini-tuber’s mass. The combination of B. subtilis 47 and Ch–CA proved effective in reducing the infection level exclusively under conditions of soil water deficit. It has been demonstrated that the primary factor influencing the development of resistance in potato plants to PVY under moisture-limiting conditions is associated with an elevated peroxidase activity and alterations in antioxidant activity within plant tissues.
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Claims 6
Claim · model-written summary
Ch–CA and Ch–CA plus B. subtilis 47 increased proline and phenolic compounds in healthy potato under optimal moisture.
- Taxon
- potato plants
Solanum tuberosume0 - Treatment
- Ch–CA and Ch–CA+B. subtilis 47e0
- Interactor
- B. subtilis 47
Bacillus subtilise0symbiont - Outcome
- accumulation of proline and phenolic compoundse0
- Direction
- accumulatione0
- Qualifier
- under optimal soil moisture conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments of Ch–CA and Ch–CA+B. subtilis 47 on healthy potato plants under optimal soil moisture conditions demonstrated the accumulation of proline and phenolic compounds”
Claim · model-written summary
The same treatments activated PPO in healthy potato under optimal soil moisture.
- Taxon
- potato plantsSolanum tuberosume0
- Treatment
- Ch–CA and Ch–CA+B. subtilis 47e0
- Interactor
- B. subtilis 47Bacillus subtilise0symbiont
- Gene
- PPOe0
- Outcome
- activation of PPOe0
- Direction
- activatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The treatments of Ch–CA and Ch–CA+B. subtilis 47 on healthy potato plants under optimal soil moisture conditions demonstrated the accumulation of proline and phenolic compounds, as well as the activation of PPO”
Claim · model-written summary
Ch–CA reduced PVY infection under both optimal and deficient soil moisture.
- Taxon
- potato plantsSolanum tuberosume0
- Treatment
- Ch–CAe0
- Interactor
- PVY
Potato virus Ye0pathogen - Outcome
- PVY infectione0
- Direction
- reductione0
- Qualifier
- under both optimal and soil moisture-deficient conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The application of Ch–CA resulted in a reduction of PVY infection in potato plants grown under both optimal and soil moisture-deficient conditions”
Claim · model-written summary
Ch–CA increased potato mini-tuber mass.
- Taxon
- potatoSolanum tuberosume0
- Organ / stage
- mini-tubere0
- Outcome
- mini-tuber’s masse0
- Direction
- increasee0
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“led to an increase in the potato mini-tuber’s mass”
Claim · model-written summary
B. subtilis 47 combined with Ch–CA reduced PVY infection only under soil water deficit.
- Taxon
- PlantsViridiplantaet0
- Treatment
- B. subtilis 47 and Ch–CAe0
- Interactor
- PVYPotato virus Yt0pathogen
- Second interactor
- B. subtilis 47Bacillus subtilise0biocontrol_agent
- Outcome
- infection levele0
- Direction
- reducinge0
- Qualifier
- exclusively under conditions of soil water deficite0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The combination of B. subtilis 47 and Ch–CA proved effective in reducing the infection level exclusively under conditions of soil water deficit”
t0“PVY-Infected Plants”
Claim · model-written summary
Elevated peroxidase activity and altered antioxidant activity were associated with potato PVY resistance under moisture limitation.
- Taxon
- potato plantsSolanum tuberosume0
- Interactor
- PVYPotato virus Ye0pathogen
- Gene
- peroxidasee0
- Outcome
- development of resistance in potato plants to PVYe0
- Qualifier
- elevated peroxidase activity and alterations in antioxidant activitye0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the primary factor influencing the development of resistance in potato plants to PVY under moisture-limiting conditions is associated with an elevated peroxidase activity and alterations in antioxidant activity within plant tissues”
The same questions in other papers
Bacillus subtilis · physiology: antioxidant enzymes · Solanum tuberosum (potato)Positive and negative results
1 in the opposite direction
- no effect
Bacillus subtilis · physiology: osmolytes · Solanum tuberosum (potato)Results agree
1 paper in the same direction as this paper
- positive
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.