Abstract
Abstract Brassinolide (BL) is known to be essential for plant growth and development and regarded as a new class of plant hormones. The ameliorative effects of BL‐treatment on stressed plants have been reported. However, little is known about the effects of BL on plant growth under aluminum (Al) stress. In the present study, mungbean (Phaseolus aureus Roxb.) seedlings were grown in a growth chamber in solution with combined concentrations of Al (0, 2, and 5 mM) and BL (0, 0.1, 10, 1000, 100,000 ng L−1) under a randomized complete block design experiment for 2 weeks, to evaluate the ameliorative effects of BL on Al toxicity for the seedling growth under Al stress. Results showed that BL had promoted growth of mungbean seedlings under Al stress. In the absence of Al stress, BL had no significant effect in increasing epicotyl length of mungbean seedlings, while in the presence of Al stress, epicotyl length showed significant increase under Al stress in the presence of BL. A similar result was obtained in seedling height and root length under 2 and 5 mM Al stress. Brassinolide also significantly increased fresh weights of shoots and roots under Al stress. Interestingly, BL at 0.1 ng L−1 had significant differential response in dry weight distributed between shoots and roots under Al stress, with no effect in dry weight of shoots, but significant increase in root dry weight. Brassinolide also significantly increased chlorophyll content under Al stress. However, the most significant promotive effect of BL on morphological traits and chlorophyll content seems to depend on the addressed traits, BL concentration, and Al stress. The mechanisms for differential response in dry weight between shoots and roots by BL at low concentration and increase of chlorophyll content under Al stress needs to be addressed further.
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Claims 10
Claim · model-written summary
Brassinolide promoted mungbean seedling growth under aluminum stress.
- Taxon
- mungbean
.jpg?width=60)
Vigna radiatae0 - Treatment
- BLe0
- Outcome
- growth of mungbean seedlingse0
- Direction
- promotede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“BL had promoted growth of mungbean seedlings under Al stress”
Claim · model-written summary
Without aluminum stress, brassinolide had no significant effect on epicotyl length.
- Taxon
- mungbeanVigna radiatae0
- Treatment
- BLe0
- Outcome
- epicotyl lengthe0
- Direction
- no significant effect in increasinge0
- Comparator
- absence of Al stresse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In the absence of Al stress, BL had no significant effect in increasing epicotyl length of mungbean seedlings”
Claim · model-written summary
Under aluminum stress, brassinolide significantly increased epicotyl length.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- BLe0
- Outcome
- epicotyl lengthe0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the presence of Al stress, epicotyl length showed significant increase under Al stress in the presence of BL”
t0“Mungbean”
Claim · model-written summary
Brassinolide similarly increased seedling height at 2 and 5 mM aluminum.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- Brassinolidet0
- Outcome
- seedling heighte0
- Qualifier
- 2 and 5 mM Al stresse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar result was obtained in seedling height and root length under 2 and 5 mM Al stress”
t0“Brassinolide Amelioration of Aluminum Toxicity in Mungbean”
Claim · model-written summary
Brassinolide similarly increased root length at 2 and 5 mM aluminum.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- Brassinolidet0
- Outcome
- root lengthe0
- Qualifier
- 2 and 5 mM Al stresse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A similar result was obtained in seedling height and root length under 2 and 5 mM Al stress”
t0“Brassinolide Amelioration of Aluminum Toxicity in Mungbean”
Claim · model-written summary
Brassinolide significantly increased fresh weights of shoots and roots under aluminum stress.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- Brassinolidee0
- Outcome
- fresh weights of shoots and rootse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassinolide also significantly increased fresh weights of shoots and roots under Al stress”
t0“Mungbean”
Claim · model-written summary
At 0.1 ng L−1, brassinolide had no effect on shoot dry weight under aluminum stress.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- BL at 0.1 ng L−1e0
- Outcome
- dry weight of shootse0
- Direction
- no effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BL at 0.1 ng L−1 had significant differential response in dry weight distributed between shoots and roots under Al stress, with no effect in dry weight of shoots”
t0“Mungbean”
Claim · model-written summary
At 0.1 ng L−1, brassinolide significantly increased root dry weight under aluminum stress.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- BL at 0.1 ng L−1e0
- Outcome
- root dry weighte0
- Direction
- increasee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“BL at 0.1 ng L−1 had significant differential response in dry weight distributed between shoots and roots under Al stress, with no effect in dry weight of shoots, but significant increase in root dry weight”
t0“Mungbean”
Claim · model-written summary
Brassinolide significantly increased chlorophyll content under aluminum stress.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- Brassinolidee0
- Outcome
- chlorophyll contente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Brassinolide also significantly increased chlorophyll content under Al stress”
t0“Mungbean”
Claim · model-written summary
The strongest brassinolide response varied by trait, concentration and aluminum stress.
- Taxon
- mungbeanVigna radiatat0
- Treatment
- BLe0
- Outcome
- promotive effecte0
- Qualifier
- addressed traits, BL concentration, and Al stresse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most significant promotive effect of BL on morphological traits and chlorophyll content seems to depend on the addressed traits, BL concentration, and Al stress”
t0“Mungbean”
The same questions in other papers
brassinolide · growth · Vigna radiata (mung bean)Results differ
5 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
3 papers more in this group
See all 7 papers →brassinolide · physiology: pigments · Vigna radiata (mung bean)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.