Abstract
Cu is a micronutrient required for normal growth and development, but in excess amounts it became toxic. The present study investigated the effect of castasterone on regulation of polyphenolic metabolism and photosynthetic system along with effect on morphology of Brassica juncea plants under copper stress. Four concentrations of copper (0, 0.25, 0.50 and 0.75 mM) were used with or without castasterone. Copper treated plants significantly decreased the growth, biomass and photosynthetic pigments and photosynthetic characteristics. The copper toxicity also affected the total phenolic content, activity of polyphenol oxidase and caused variation in polyphenolic content. Application of castasterone significantly alleviated copper toxicity showing improvement in growth, biomass and photosynthetic systems. The activity of polyphenol oxidase and total phenolic content enhanced with castasterone supplementation, which improved the antioxidant potential of plants. These results showed that supplementation of castasterone can be useful for the enhancement of growth and biomass of plants growing in copper contaminated soils.
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Claims 9
Claim · model-written summary
Copper treatment significantly decreased growth and biomass.
- Taxon
- Brassica juncea plants
Brassica junceat0 - Treatment
- Coppere0
- Outcome
- growth, biomasse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Copper treated plants significantly decreased the growth, biomass and photosynthetic pigments and photosynthetic characteristics.”
t0“Brassica juncea plants”
Claim · model-written summary
Copper treatment significantly decreased photosynthetic pigments and characteristics.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- Coppere0
- Outcome
- photosynthetic pigments and photosynthetic characteristicse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Copper treated plants significantly decreased the growth, biomass and photosynthetic pigments and photosynthetic characteristics.”
t0“Brassica juncea plants”
Claim · model-written summary
Copper toxicity affected total phenolic content and polyphenol oxidase activity.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- copper toxicitye0
- Gene
- polyphenol oxidasee0
- Outcome
- total phenolic content, activity of polyphenol oxidasee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The copper toxicity also affected the total phenolic content, activity of polyphenol oxidase and caused variation in polyphenolic content.”
t0“Brassica juncea plants”
Claim · model-written summary
Copper toxicity caused variation in polyphenolic content.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- copper toxicitye0
- Outcome
- polyphenolic contente0
- Direction
- variatione0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The copper toxicity also affected the total phenolic content, activity of polyphenol oxidase and caused variation in polyphenolic content.”
t0“Brassica juncea plants”
Claim · model-written summary
Castasterone significantly alleviated copper toxicity and improved growth and biomass.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- castasteronee0
- Outcome
- growth, biomasse0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of castasterone significantly alleviated copper toxicity showing improvement in growth, biomass and photosynthetic systems.”
t0“Brassica juncea plants”
Claim · model-written summary
Castasterone significantly improved photosynthetic systems under copper toxicity.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- castasteronee0
- Outcome
- photosynthetic systemse0
- Direction
- improvemente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of castasterone significantly alleviated copper toxicity showing improvement in growth, biomass and photosynthetic systems.”
t0“Brassica juncea plants”
Claim · model-written summary
Castasterone enhanced polyphenol oxidase activity and total phenolic content.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- castasterone supplementatione0
- Gene
- polyphenol oxidasee0
- Outcome
- activity of polyphenol oxidase and total phenolic contente0
- Direction
- enhancede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of polyphenol oxidase and total phenolic content enhanced with castasterone supplementation, which improved the antioxidant potential of plants.”
t0“Brassica juncea plants”
Claim · model-written summary
Castasterone supplementation improved antioxidant potential.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- castasterone supplementatione0
- Outcome
- antioxidant potentiale0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The activity of polyphenol oxidase and total phenolic content enhanced with castasterone supplementation, which improved the antioxidant potential of plants.”
t0“Brassica juncea plants”
Claim · model-written summary
The authors propose castasterone supplementation to enhance growth and biomass in copper-contaminated soils.
- Taxon
- Brassica juncea plantsBrassica junceat0
- Treatment
- castasteronee0
- Outcome
- enhancement of growth and biomasse0
- Setting
- copper contaminated soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“supplementation of castasterone can be useful for the enhancement of growth and biomass of plants growing in copper contaminated soils”
t0“Brassica juncea plants”
The same questions in other papers
copper atom · physiology: photosynthesis · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- negative
castasterone · quality: phytochemicals · Brassica juncea (Indian mustard)Results agree
1 paper in the same direction as this paper
- positive
copper atom · growth · Brassica juncea (Indian mustard)Results agree
5 papers in the same direction as this paper
- negative
- negative
- negative
2 papers more in this group
See all 6 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.