Abstract
The allelopathic activity of the different type of Cladonia verticillaris lichen extracts and fumarprotocetraric acid on the early growth of A. cepa (IPA 6) germinated seedlings depends on their chemical composition and concentration, respectively. It was observed that the length of the radicle was significantly stimulated by fumarprotocetraric acid at high concentrations and by the total extract of C. verticillaris thalli, which contained high level of fumarprotocetraric, acid confirmed by HPLC – technique. In addition, it was found, that the phosphate buffer extract, which contained high level of methy b-orcinol carboxilate measured by HPLC, significantly reduced the length of the hypocotyls. Under our experimental conditions there was no influence of different type of extract and fumarprotocetraric acid on the seed germination ratio of A. cepa, in relation to control. From the study of HPLC it was found that fumarprotocetraric acid and methy b-orcinol carboxilate were present in all extracts at different concentrations, according to the method of extraction.
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Claims 6
Claim · model-written summary
High concentrations of fumarprotocetraric acid significantly stimulated radicle length.
- Taxon
- Allium cepa L.
Allium cepat0 - Treatment
- fumarprotocetraric acid at high concentrationse0
- Outcome
- length of the radiclee0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the length of the radicle was significantly stimulated by fumarprotocetraric acid at high concentrations”
t0“Allium cepa L.”
Claim · model-written summary
Total Cladonia verticillaris extract significantly stimulated onion radicle length.
- Taxon
- Allium cepa L.Allium cepat0
- Treatment
- total extract of C. verticillaris thallie0
- Interactor
- C. verticillaris
Cladonia verticillarise0other - Outcome
- length of the radiclee0
- Direction
- stimulatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the length of the radicle was significantly stimulated by fumarprotocetraric acid at high concentrations and by the total extract of C. verticillaris thalli”
t0“Allium cepa L.”
Claim · model-written summary
Phosphate buffer extract significantly reduced onion hypocotyl length.
- Taxon
- Allium cepa L.Allium cepat0
- Treatment
- phosphate buffer extracte0
- Compound
- methy b-orcinol carboxilatee0
- Outcome
- length of the hypocotylse0
- Direction
- reducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the phosphate buffer extract, which contained high level of methy b-orcinol carboxilate measured by HPLC, significantly reduced the length of the hypocotyls”
t0“Allium cepa L.”
Claim · model-written summary
The different lichen extracts did not affect onion seed germination ratio relative to control.
- Taxon
- A. cepaAllium cepae0
- Treatment
- different type of extracte0
- Interactor
- Cladonia verticillarisCladonia verticillarist0other
- Outcome
- seed germination ratioe0
- Direction
- no influencee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no influence of different type of extract and fumarprotocetraric acid on the seed germination ratio of A. cepa, in relation to control”
t0“Cladonia verticillaris”
Claim · model-written summary
Fumarprotocetraric acid did not affect onion seed germination ratio relative to control.
- Taxon
- A. cepaAllium cepae0
- Treatment
- fumarprotocetraric acide0
- Outcome
- seed germination ratioe0
- Direction
- no influencee0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there was no influence of different type of extract and fumarprotocetraric acid on the seed germination ratio of A. cepa, in relation to control”
Claim · model-written summary
Both fumarprotocetraric acid and methy b-orcinol carboxilate occurred in all extracts at varying concentrations.
- Taxon
- Cladonia verticillarisCladonia verticillarist0
- Outcome
- fumarprotocetraric acid and methy b-orcinol carboxilate were presente0
- Qualifier
- different concentrationse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fumarprotocetraric acid and methy b-orcinol carboxilate were present in all extracts at different concentrations”
t0“Cladonia verticillaris”