Abstract
The brassinosteroid, 24‐epibrassinolide, caused observable inhibition of the growth of aseptically‐cultured excised tomato ( Lycopersicon esculentum Mill. cv. Best of All) roots at a concentration of 0.01 μ M . Root formation and outgrowth in tomato shoot cuttings and root biomass in intact tomato seedlings were also depressed by epibrassinolide, but only at a higher concentration (0.1μ M ). Concentrations of the steroidal estrogens, estrone and estradiol (as sulphate derivatives), in excess of 1.0 μ M , reduced cultured root growth as well as root number and total (but not mean) root length in shoot cuttings. Seedling root growth was only slightly inhibited by estradiol but not by estrone. Both epibrassinolide and estrogens caused morphological abnormalities, such as epinasty and leaf‐inrolling in cuttings and seedlings. Epibrassinolide stimulated extension growth of the hypocotyl and epicotyl in cuttings and of the hypocotyl in seedlings, but estrogens exerted no effects on shoot growth.
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Claims 12
Claim · model-written summary
Epibrassinolide at 0.01 μM caused observable inhibition of tomato root growth in culture.
- Taxon
- tomato
Solanum lycopersicume1 - Material
- Best of Alle1
- Organ / stage
- rootse1
- Treatment
- epibrassinolidee1
- Outcome
- growthe1
- Direction
- inhibitione1
- Value
- 0.01 μ Me1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e1“The brassinosteroid, 24‐epibrassinolide, caused observable inhibition of the growth of aseptically‐cultured excised tomato ( Lycopersicon esculentum Mill. cv. Best of All) roots at a concentration of 0.01 μ M”
Claim · model-written summary
Epibrassinolide at 0.1μ M depressed root formation and outgrowth in tomato shoot cuttings.
- Taxon
- tomatoSolanum lycopersicume2
- Organ / stage
- shoot cuttingse2
- Treatment
- epibrassinolidee2
- Outcome
- Root formation and outgrowthe2
- Direction
- depressede2
- Value
- 0.1μ Me2
- Qualifier
- but only at a higher concentratione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e2“Root formation and outgrowth in tomato shoot cuttings and root biomass in intact tomato seedlings were also depressed by epibrassinolide, but only at a higher concentration (0.1μ M )”
Claim · model-written summary
Epibrassinolide at 0.1μ M depressed root biomass in intact tomato seedlings.
- Taxon
- tomatoSolanum lycopersicume2
- Organ / stage
- intact tomato seedlingse2
- Treatment
- epibrassinolidee2
- Outcome
- root biomasse2
- Direction
- depressede2
- Value
- 0.1μ Me2
- Qualifier
- but only at a higher concentratione2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e2“Root formation and outgrowth in tomato shoot cuttings and root biomass in intact tomato seedlings were also depressed by epibrassinolide, but only at a higher concentration (0.1μ M )”
Claim · model-written summary
Estrone and estradiol above 1.0 μ M reduced cultured tomato root growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- steroidal estrogense3
- Outcome
- cultured root growthe3
- Direction
- reducede3
- Value
- 1.0 μ Me3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e3“Concentrations of the steroidal estrogens, estrone and estradiol (as sulphate derivatives), in excess of 1.0 μ M , reduced cultured root growth as well as root number and total (but not mean) root length in shoot cuttings”
Claim · model-written summary
Estrogens above 1.0 μ M reduced root number and total root length in tomato shoot cuttings.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- shoot cuttingse3
- Treatment
- steroidal estrogense3
- Outcome
- root number and total (but not mean) root lengthe3
- Direction
- reducede3
- Value
- 1.0 μ Me3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e3“Concentrations of the steroidal estrogens, estrone and estradiol (as sulphate derivatives), in excess of 1.0 μ M , reduced cultured root growth as well as root number and total (but not mean) root length in shoot cuttings”
Claim · model-written summary
Estradiol slightly inhibited seedling root growth in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- estradiole4
- Outcome
- Seedling root growthe4
- Direction
- inhibitede4
- Qualifier
- only slightlye4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e4“Seedling root growth was only slightly inhibited by estradiol but not by estrone”
Claim · model-written summary
Estrone did not change seedling root growth in tomato.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- estronee4
- Outcome
- Seedling root growthe4
- Direction
- no_changeinferrede4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e4“Seedling root growth was only slightly inhibited by estradiol but not by estrone”
Claim · model-written summary
Epibrassinolide caused morphological abnormalities in tomato cuttings and seedlings.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- epibrassinolidee5
- Outcome
- morphological abnormalitiese5
- Qualifier
- epinasty and leaf‐inrollinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e5“Both epibrassinolide and estrogens caused morphological abnormalities, such as epinasty and leaf‐inrolling in cuttings and seedlings”
Claim · model-written summary
Estrogens caused morphological abnormalities in tomato cuttings and seedlings.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- estrogense5
- Outcome
- morphological abnormalitiese5
- Qualifier
- epinasty and leaf‐inrollinge5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e5“Both epibrassinolide and estrogens caused morphological abnormalities, such as epinasty and leaf‐inrolling in cuttings and seedlings”
Claim · model-written summary
Epibrassinolide stimulated extension growth of the hypocotyl and epicotyl in tomato cuttings.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- cuttingse6
- Treatment
- Epibrassinolidee6
- Outcome
- extension growth of the hypocotyl and epicotyle6
- Direction
- stimulatede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e6“Epibrassinolide stimulated extension growth of the hypocotyl and epicotyl in cuttings and of the hypocotyl in seedlings”
Claim · model-written summary
Epibrassinolide stimulated extension growth of the hypocotyl in tomato seedlings.
- Taxon
- tomatoSolanum lycopersicumt0
- Organ / stage
- seedlingse6
- Treatment
- Epibrassinolidee6
- Outcome
- extension growth of the hypocotyle6
- Direction
- stimulatede6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e6“Epibrassinolide stimulated extension growth of the hypocotyl and epicotyl in cuttings and of the hypocotyl in seedlings”
Claim · model-written summary
Estrogens had no effect on tomato shoot growth.
- Taxon
- tomatoSolanum lycopersicumt0
- Treatment
- estrogense7
- Outcome
- shoot growthe7
- Direction
- no_changeinferrede7
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Epibrassinolide‐inhibition of development of excised, adventitious and intact roots of tomato”
e7“estrogens exerted no effects on shoot growth”
The same questions in other papers
24-epi-brassinolide · growth · Solanum lycopersicum (tomato)Results differ
17 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
15 papers more in this group
See all 19 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.