Abstract
A study was conducted to determine the physiological and biochemical effects of boron in seedlings of mustard (Brassica juncea L. var Varuna). For this seeds were sown in petridishes with varying concentrations of boron (0, 0.33, 3.3, 33, 330 mM) in seed germinator. Seed germination and vigor index was found to be decreased and percentage phytotoxicity was increased in seeds with increase in the concentration of boron in germinating solution. There was accumulation of sugars and decreased starch concentration in cotyledons and embryonic axes of growing seedling with increasing boron stress. For the estimation of oxidative damage in cotyledons and embryonic axes of mustard seedlings, hydrogen peroxide (H2O2), thiobarbituric acid reactive substances (TBARS), phenols and activities of antioxidative enzymes- polyphenoloxydase (PPO), superoxide dismutase (SOD), catalase (CAT) and peroxidase (POD) were determined. Boron toxicity caused accumulation of H2O2, TBARS and phenols and affected the antioxidative enzyme activity in growing seedling components.
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Claims 6
Claim · model-written summary
Boron in the germinating solution decreased seed germination and vigor index of mustard seedlings.
- Taxon
- Brassica juncea L.
Brassica junceae0 - Material
- var Varunae0
- Organ / stage
- seedlingse0
- Treatment
- increase in the concentration of borone2
- Outcome
- Seed germination and vigor indexe2
- Direction
- decreasede2
- Setting
- petridishese1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of mustard (Brassica juncea L. var Varuna)”
e1“seeds were sown in petridishes with varying concentrations of boron (0, 0.33, 3.3, 33, 330 mM) in seed germinator”
e2“Seed germination and vigor index was found to be decreased and percentage phytotoxicity was increased in seeds with increase in the concentration of boron in germinating solution”
Claim · model-written summary
Increasing boron concentration in the germinating solution increased percentage phytotoxicity of mustard seeds.
- Taxon
- Brassica juncea L.Brassica junceae0
- Material
- var Varunae0
- Treatment
- increase in the concentration of borone2
- Outcome
- percentage phytotoxicitye2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of mustard (Brassica juncea L. var Varuna)”
e2“Seed germination and vigor index was found to be decreased and percentage phytotoxicity was increased in seeds with increase in the concentration of boron in germinating solution”
Claim · model-written summary
Boron toxicity caused an increase in H2O2, TBARS and phenols in growing mustard seedlings.
- Taxon
- Brassica juncea L.Brassica junceae0
- Treatment
- Boron toxicitye3
- Outcome
- accumulation of H2O2, TBARS and phenolse3
- Direction
- increaseinferrede3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of mustard (Brassica juncea L. var Varuna)”
e3“Boron toxicity caused accumulation of H2O2, TBARS and phenols and affected the antioxidative enzyme activity in growing seedling components”
Claim · model-written summary
Boron toxicity affected antioxidative enzyme activity in growing mustard seedling components; the direction is not stated.
- Taxon
- Brassica juncea L.Brassica junceae0
- Treatment
- Boron toxicitye3
- Outcome
- antioxidative enzyme activitye3
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of mustard (Brassica juncea L. var Varuna)”
e3“Boron toxicity caused accumulation of H2O2, TBARS and phenols and affected the antioxidative enzyme activity in growing seedling components”
Claim · model-written summary
Increasing boron stress caused sugar accumulation in cotyledons and embryonic axes of growing mustard seedlings.
- Taxon
- Brassica juncea L.Brassica junceae0
- Organ / stage
- cotyledons and embryonic axese4
- Treatment
- increasing boron stresse4
- Outcome
- accumulation of sugarse4
- Direction
- increaseinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of mustard (Brassica juncea L. var Varuna)”
e4“There was accumulation of sugars and decreased starch concentration in cotyledons and embryonic axes of growing seedling with increasing boron stress”
Claim · model-written summary
Increasing boron stress decreased starch concentration in cotyledons and embryonic axes of growing mustard seedlings.
- Taxon
- Brassica juncea L.Brassica junceae0
- Organ / stage
- cotyledons and embryonic axese4
- Treatment
- increasing boron stresse4
- Outcome
- starch concentratione4
- Direction
- decreasede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“seedlings of mustard (Brassica juncea L. var Varuna)”
e4“There was accumulation of sugars and decreased starch concentration in cotyledons and embryonic axes of growing seedling with increasing boron stress”
The same questions in other papers
boron atom · molecular: metabolites · Brassica juncea (Indian mustard)Positive and negative results
1 in the opposite direction
- positive
boron atom · growth · Brassica juncea (Indian mustard)Positive and negative results
6 in the opposite direction
- positive
- positive
- positive
3 papers more in this group
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.