Abstract
Abstract GABA counteracts wide range of stresses through regulation of GABA shunt pathway in plants. Although, GABA assisted tolerance against As toxicity in plants is still unexplored. We have examined GABA induced tolerance in rice seedlings with two exposure periods of GABA i.e., short term and long term. Results showed that accumulation of GABA reduced the expressions of Lsi-1 and Lsi-2 transporter genes, which ultimately decreased the accumulation of As in rice seedlings. The accumulation of GABA also modulated the gene expression of GABA shunt pathway and activity of antioxidant enzymes, which strongly induced the tolerance in plants. Antioxidant enzymes such as CAT, POD, GPX and SOD showed maximum alteration in activity with GABA accretion. In both exposure periods, long term accumulation of GABA was highly efficient to provide tolerance to plants against As(III), while higher level of GABA at short term was toxic. Tolerance responses of GABA towards As(III) was reflected by minimal changes in various physiological (WUE, A , gs, PhiPS2, qp, NPQ, ETR and Trmmol) and growth parameters with concomitant accumulation. Oxidative stress marker such as TBARS and H 2 O 2 contents were reduced with GABA accumulation. These results suggested that GABA sturdily inhibits As accumulation and provides tolerance towards As(III).
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Claims 7
Claim · model-written summary
GABA accumulation reduced Lsi-1 and Lsi-2 transporter gene expression in rice seedlings.
- Taxon
- rice seedlings
Oryza sativae1 - Organ / stage
- seedlingse1
- Treatment
- accumulation of GABAe1
- Gene
- Lsi-1 and Lsi-2e1
- Outcome
- expressionse1
- Direction
- reducede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results showed that accumulation of GABA reduced the expressions of Lsi-1 and Lsi-2 transporter genes, which ultimately decreased the accumulation of As in rice seedlings”
Claim · model-written summary
GABA accumulation decreased arsenic accumulation in rice seedlings.
- Taxon
- rice seedlingsOryza sativae1
- Organ / stage
- seedlingse1
- Treatment
- accumulation of GABAe1
- Compound
- Ase1
- Outcome
- accumulation of Ase1
- Direction
- decreasede1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Results showed that accumulation of GABA reduced the expressions of Lsi-1 and Lsi-2 transporter genes, which ultimately decreased the accumulation of As in rice seedlings”
Claim · model-written summary
Long-term GABA accumulation was highly efficient in providing tolerance to rice against As(III).
- Taxon
- plantsViridiplantaee2
- Treatment
- long term accumulation of GABAe2
- Compound
- As(III)e2
- Outcome
- tolerance to plants against As(III)e2
- Direction
- highly efficiente2
Not reportedComparator
Verbatim
e2“In both exposure periods, long term accumulation of GABA was highly efficient to provide tolerance to plants against As(III), while higher level of GABA at short term was toxic”
Claim · model-written summary
Higher GABA accumulation at short term was toxic to plants.
- Taxon
- plantsViridiplantaee2
- Outcome
- toxice2
- Qualifier
- higher level of GABA at short terme2
Verbatim
e2“In both exposure periods, long term accumulation of GABA was highly efficient to provide tolerance to plants against As(III), while higher level of GABA at short term was toxic”
Claim · model-written summary
GABA accumulation caused minimal changes in physiological and growth parameters.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- concomitant accumulatione3
- Outcome
- growth parameterse3
- Direction
- minimal changese3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physiological responses in Oryza sativa”
e3“Tolerance responses of GABA towards As(III) was reflected by minimal changes in various physiological (WUE, A , gs, PhiPS2, qp, NPQ, ETR and Trmmol) and growth parameters with concomitant accumulation”
Claim · model-written summary
GABA accumulation reduced TBARS and H2O2 contents in rice.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- GABA accumulatione4
- Outcome
- TBARS and H 2 O 2 contentse4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physiological responses in Oryza sativa”
e4“Oxidative stress marker such as TBARS and H 2 O 2 contents were reduced with GABA accumulation”
Claim · model-written summary
GABA accumulation showed maximum alteration in antioxidant enzyme activity in rice.
- Taxon
- Oryza sativaOryza sativat0
- Treatment
- GABA accretione5
- Gene
- CAT, POD, GPX and SODe5
- Outcome
- activitye5
- Direction
- maximum alteratione5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“physiological responses in Oryza sativa”
e5“Antioxidant enzymes such as CAT, POD, GPX and SOD showed maximum alteration in activity with GABA accretion”
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See all 7 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.