Abstract
Brassinosteroids (BRs) influence a variety of physiological reactions and alleviate different biotic and abiotic stressors. Turnip seedlings were grown with the goal of further exploring and expanding their function in plants under abiotic stress, particularly under heavy metal toxicity (lead stress). This study’s objective was to ascertain the role of applied 28-homobrassinolide (HBL) in reducing lead (Pb) stress in turnip plants. Turnip seeds treated with 1, 5, and 10 µM HBL and were grown-up in Pb-contaminated soil (300 mg kg−1). Lead accumulation reduces biomass, growth attributes, and various biochemical parameters, as well as increasing proline content. Seed germination, root and shoot growth, and gas exchange characteristics were enhanced via HBL treatment. Furthermore, Pb-stressed seedlings had decreased total soluble protein concentrations, photosynthetic pigments, nutrition, and phenol content. Nonetheless, HBL increased chlorophyll a and chlorophyll b levels in plant, resulting in increased photosynthesis. As a result, seeds treated with HBL2 (5 µM L−1) had higher nutritional contents (Mg+2, Zn+2, Na+2, and K+1). HBL2-treated seedlings had higher DPPH and metal tolerance indexes. This led to the conclusion that HBL2 effectively reduced Pb toxicity and improved resistance in lead-contaminated soil.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 12
Claim · model-written summary
Lead accumulation reduced biomass, growth attributes and various biochemical parameters in turnip.
- Taxon
- Brassica rapa
Brassica rapat0 - Treatment
- Lead accumulatione5
- Outcome
- biomass, growth attributes, and various biochemical parameterse5
- Direction
- reducese5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e5“Lead accumulation reduces biomass, growth attributes, and various biochemical parameters, as well as increasing proline content”
Claim · model-written summary
Lead accumulation increased proline content in turnip.
- Taxon
- Brassica rapaBrassica rapat0
- Treatment
- Lead accumulatione5
- Outcome
- proline contente5
- Direction
- increasinge5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e5“Lead accumulation reduces biomass, growth attributes, and various biochemical parameters, as well as increasing proline content”
Claim · model-written summary
HBL treatment enhanced seed germination, root and shoot growth, and gas exchange characteristics of turnip.
- Taxon
- Brassica rapaBrassica rapat0
- Organ / stage
- Seede6
- Treatment
- HBL treatmente6
- Outcome
- Seed germination, root and shoot growth, and gas exchange characteristicse6
- Direction
- enhancede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e6“Seed germination, root and shoot growth, and gas exchange characteristics were enhanced via HBL treatment”
Claim · model-written summary
Pb-stressed turnip seedlings had decreased total soluble protein concentrations and photosynthetic pigments.
- Taxon
- Brassica rapaBrassica rapat0
- Organ / stage
- seedlingse7
- Treatment
- Pb-stressede7
- Outcome
- total soluble protein concentrations, photosynthetic pigmentse7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e7“Pb-stressed seedlings had decreased total soluble protein concentrations, photosynthetic pigments, nutrition, and phenol content”
Claim · model-written summary
Pb-stressed turnip seedlings had decreased nutrition and phenol content.
- Taxon
- Brassica rapaBrassica rapat0
- Organ / stage
- seedlingse7
- Treatment
- Pb-stressede7
- Outcome
- nutrition, and phenol contente7
- Direction
- decreasede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e7“Pb-stressed seedlings had decreased total soluble protein concentrations, photosynthetic pigments, nutrition, and phenol content”
Claim · model-written summary
HBL increased chlorophyll a and chlorophyll b levels in turnip.
- Taxon
- Brassica rapaBrassica rapat0
- Treatment
- HBLe0
- Outcome
- chlorophyll a and chlorophyll b levelse0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e0“Nonetheless, HBL increased chlorophyll a and chlorophyll b levels in plant, resulting in increased photosynthesis”
Claim · model-written summary
HBL increased photosynthesis in turnip, which the authors attribute to the rise in chlorophyll.
- Taxon
- Brassica rapaBrassica rapat0
- Treatment
- HBLe0
- Outcome
- photosynthesise0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e0“Nonetheless, HBL increased chlorophyll a and chlorophyll b levels in plant, resulting in increased photosynthesis”
Claim · model-written summary
Seeds treated with HBL2 had higher Mg, Zn and Na nutritional contents.
- Taxon
- Brassica rapaBrassica rapat0
- Organ / stage
- seedse1
- Treatment
- HBL2e1
- Outcome
- nutritional contentse2
- Direction
- highere2
- Qualifier
- Mg+2, Zn+2, Na+2e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e1“seeds treated with HBL2”
e2“had higher nutritional contents (Mg+2, Zn+2, Na+2, and K+1)”
Claim · model-written summary
Seeds treated with HBL2 had higher K nutritional content.
- Taxon
- Brassica rapaBrassica rapat0
- Organ / stage
- seedse1
- Treatment
- HBL2e1
- Outcome
- nutritional contentse2
- Direction
- highere2
- Qualifier
- K+1e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e1“seeds treated with HBL2”
e2“had higher nutritional contents (Mg+2, Zn+2, Na+2, and K+1)”
Claim · model-written summary
HBL2-treated turnip seedlings had higher DPPH and metal tolerance indexes.
- Taxon
- Brassica rapaBrassica rapat0
- Organ / stage
- seedlingse3
- Treatment
- HBL2e3
- Outcome
- DPPH and metal tolerance indexese3
- Direction
- highere3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e3“HBL2-treated seedlings had higher DPPH and metal tolerance indexes”
Claim · model-written summary
HBL2 effectively reduced Pb toxicity in turnip grown in lead-contaminated soil.
- Taxon
- Brassica rapaBrassica rapat0
- Treatment
- HBL2e4
- Outcome
- Pb toxicitye4
- Direction
- reducede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e4“HBL2 effectively reduced Pb toxicity and improved resistance in lead-contaminated soil”
Claim · model-written summary
HBL2 improved resistance of turnip in lead-contaminated soil.
- Taxon
- Brassica rapaBrassica rapat0
- Treatment
- HBL2e4
- Outcome
- resistancee4
- Direction
- improvede4
- Setting
- lead-contaminated soile4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Brassica rapa L.”
e4“HBL2 effectively reduced Pb toxicity and improved resistance in lead-contaminated soil”
The same questions in other papers
lead atom · physiology: photosynthesis · Brassica rapa (field mustard)Results agree
1 paper in the same direction as this paper
- negative
lead atom · growth · Brassica rapa (field mustard)Results agree
4 papers in the same direction as this paper
- negative
- negative
- negative
1 paper more in this group
See all 5 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.