Abstract
The present study was undertaken to identify the aluminum (Al) tolerant cultivar of Brassica juncea. We examined the changes in antioxidant enzymes, proline level, chlorophyll a fluorescence and psb A gene expression at vegetative and reproductive growth stages of B. juncea cultivars (Bio-902, CS-14, Pusa-Tarak and Laxmi). The selected cultivars were exposed to soil (pH 5.2) supplemented with Al (0, 50, 100 and 150 mg kg−1). We observed the lowest decline in photosynthetic efficiency (ΔF/Fm′), ETR, PPFD values and psb A expression to Al stress in the cultivar Bio-902 (tolerant cultivar) followed by CS-14 and Pusa-Tarak whereas the highest decline was observed in the cultivar Laxmi (sensitive cultivar). The improved performance of the cultivar Bio-902 under Al stress was accompanied by an increase in proline level, CAT and APX activities but without any increase in SOD activity. However, significant increase in SOD activity was observed in Laxmi.
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Claims 5
Claim · model-written summary
Under Al stress, cultivar Bio-902 showed the lowest decline in photosynthetic efficiency, ETR and PPFD values compared with cultivar Laxmi.
- Taxon
- B. juncea
Brassica junceae3 - Material
- Bio-902e0
- Treatment
- Al stresse0
- Outcome
- photosynthetic efficiency (ΔF/Fm′), ETR, PPFD valuese0
- Direction
- lowest declinee0
- Comparator
- Laxmie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“reproductive growth stages of B. juncea cultivars”
e0“We observed the lowest decline in photosynthetic efficiency (ΔF/Fm′), ETR, PPFD values and psb A expression to Al stress in the cultivar Bio-902 (tolerant cultivar) followed by CS-14 and Pusa-Tarak whereas the highest decline was observed in the cultivar Laxmi (sensitive cultivar)”
Claim · model-written summary
Under Al stress, cultivar Bio-902 showed the lowest decline in psbA expression compared with cultivar Laxmi.
- Taxon
- B. junceaBrassica junceae3
- Material
- Bio-902e0
- Treatment
- Al stresse0
- Gene
- psb Ae0
- Outcome
- psb A expressione0
- Direction
- lowest declinee0
- Comparator
- Laxmie0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“reproductive growth stages of B. juncea cultivars”
e0“We observed the lowest decline in photosynthetic efficiency (ΔF/Fm′), ETR, PPFD values and psb A expression to Al stress in the cultivar Bio-902 (tolerant cultivar) followed by CS-14 and Pusa-Tarak whereas the highest decline was observed in the cultivar Laxmi (sensitive cultivar)”
Claim · model-written summary
In Bio-902 under Al stress, proline level, CAT and APX activities increased.
- Taxon
- B. junceaBrassica junceae3
- Outcome
- proline level, CAT and APX activitiese1
- Direction
- increasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“reproductive growth stages of B. juncea cultivars”
e1“accompanied by an increase in proline level, CAT and APX activities but without any increase in SOD activity”
Claim · model-written summary
In Bio-902 under Al stress, SOD activity did not increase.
- Taxon
- B. junceaBrassica junceae3
- Outcome
- SOD activitye1
- Direction
- without any increasee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“reproductive growth stages of B. juncea cultivars”
e1“accompanied by an increase in proline level, CAT and APX activities but without any increase in SOD activity”
Claim · model-written summary
Under Al stress, SOD activity showed a significant increase in cultivar Laxmi.
- Taxon
- B. junceaBrassica junceae3
- Material
- Laxmie2
- Outcome
- SOD activitye2
- Direction
- significant increasee2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“reproductive growth stages of B. juncea cultivars”
e2“However, significant increase in SOD activity was observed in Laxmi”
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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.