Abstract
High‐performance thin‐layer chromatography (HPTLC) combined with image analysis and pattern recognition methods were used for fingerprinting of phenolic compounds present in seedlings of two maize genotypes ZP 434 (new generation hybrid, drought tolerant) and ZP 704 (older generation hybrid, drought sensitive) treated with different concentrations of 24‐epibrassinolide. This is the first report of TLC chromatographic profile of phenolics’ mixtures in maize seed extracts influenced by brassinosteroid phytohormones. Nine samples of shoot of seedlings for the whole concentration range of phytohormones (5.2 × 10 −7 –5.2 × 10 −15 M), one sample of root of seedlings treated with 5.2 × 10 −15 M 24‐epibrassinolide, and the control samples of nontreated seedlings, for both genotypes, were analyzed. Phenolic profiles of root extracts indicate the absence of more polar compounds such as phenolic acids and glycosides present in shoot of seedlings. Also, hormones applied in higher concentrations have an inhibiting effect on the content of phenolics in ZP 434. Application of chemometric methods enables characterization of particular genotype of maize according to its phenolic profile.
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Claims 3
Claim · model-written summary
Maize root extracts lacked more polar phenolic acids and glycosides found in seedling shoots.
- Organ / stage
- root extractse0
- Outcome
- absence of more polar compounds such as phenolic acids and glycosidese0
- Comparator
- shoot of seedlingse0
Zea maysNot reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phenolic profiles of root extracts indicate the absence of more polar compounds such as phenolic acids and glycosides present in shoot of seedlings.”
t0“Maize Seedlings”
Claim · model-written summary
Higher hormone concentrations inhibited phenolic content in ZP 434.
- Material
- ZP 434e0
- Treatment
- hormones applied in higher concentrationse0
- Outcome
- content of phenolicse0
- Direction
- inhibitinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“hormones applied in higher concentrations have an inhibiting effect on the content of phenolics in ZP 434.”
t0“Maize Seedlings Treated with 24‐Epibrassinolide”
Claim · model-written summary
Chemometric methods characterized maize genotypes from their phenolic profiles.
- Outcome
- characterization of particular genotypee0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of chemometric methods enables characterization of particular genotype of maize according to its phenolic profile.”
The same questions in other papers
class · quality: phytochemicals · Zea mays (maize)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- positive
- no effect
- negative
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.