Abstract
The aim of this study was to realize the evaluation of the allelopathic activity of 83 vegetable species from Allpahuayo ndash Mishana Reserve in Peruvian Amazon, and to determine the main polar components of three species of that showed high activity. Leaves samples were collected, which were subjected to elution for two weeks to get the methanol extracts e to test the inhibition of the roots of pre-germinated seeds of Lactuca sativa. These extracts were dried in a rotary evaporator and the product subjected to column fractionation opened using silica gel No. 100, using as mobile phase methanol and obtaining the fractions according to the appropriate retention time, and meet the fractions containing similar molecules through analysis of thin layer chromatography which were tested to evaluate their allelopathic activity against pre-germinated seeds of Lactuca sativa. In this way it was found that three species showed activity in extracts, these were the Iryanthera ulei, Duroia hirsuta and Theobroma obovatum. When performing the analysis on GC-MS. was found compounds as terpenes, phenolics and organic acids, as the following: isoeugenol, catechol, humulene in I. ulei limonene, geranic acid, neric acid, homovanillil alcohol in D. hirsute phenol. 2,4-bis (1.1-dimethylethyl), alpha ionone in T. obovatum and phytol in each.
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Claims 8
Claim · model-written summary
Iryanthera ulei extract showed allelopathic activity against lettuce roots.
- Taxon
- Lactuca sativa
Lactuca sativae1 - Treatment
- Iryanthera uleie0
- Interactor
- Iryanthera uleiIryanthera uleie0other
- Outcome
- activity in extractse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three species showed activity in extracts, these were the Iryanthera ulei, Duroia hirsuta and Theobroma obovatum”
e1“the roots of pre-germinated seeds of Lactuca sativa”
Claim · model-written summary
Duroia hirsuta extract showed allelopathic activity against lettuce roots.
- Taxon
- Lactuca sativaLactuca sativae1
- Treatment
- Duroia hirsutae0
- Interactor
- Duroia hirsuta
Duroia hirsutae0other - Outcome
- activity in extractse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three species showed activity in extracts, these were the Iryanthera ulei, Duroia hirsuta and Theobroma obovatum”
e1“the roots of pre-germinated seeds of Lactuca sativa”
Claim · model-written summary
Theobroma obovatum extract showed allelopathic activity against lettuce roots.
- Taxon
- Lactuca sativaLactuca sativae1
- Treatment
- Theobroma obovatume0
- Interactor
- Theobroma obovatumTheobroma obovatume0other
- Outcome
- activity in extractse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“three species showed activity in extracts, these were the Iryanthera ulei, Duroia hirsuta and Theobroma obovatum”
e1“the roots of pre-germinated seeds of Lactuca sativa”
Claim · model-written summary
GC-MS identified isoeugenol, catechol and humulene in I. ulei.
- Taxon
- I. uleiIryanthera uleie0
- Outcome
- isoeugenol, catechol, humulenee0
Verbatim
e0“isoeugenol, catechol, humulene in I. ulei”
Claim · model-written summary
GC-MS identified limonene, geranic acid and neric acid in D. hirsute.
Verbatim
e0“limonene, geranic acid, neric acid, homovanillil alcohol in D. hirsute”
Claim · model-written summary
GC-MS identified homovanillil alcohol in D. hirsute.
Verbatim
e0“homovanillil alcohol in D. hirsute”
Claim · model-written summary
GC-MS identified phenol. 2,4-bis (1.1-dimethylethyl) and alpha ionone in T. obovatum.
- Taxon
- T. obovatumTheobroma obovatume0
- Outcome
- phenol. 2,4-bis (1.1-dimethylethyl), alpha iononee0
Verbatim
e0“phenol. 2,4-bis (1.1-dimethylethyl), alpha ionone in T. obovatum”
Claim · model-written summary
Phytol was found in each of the three species.
Verbatim
e0“phytol in each”
t0“Three Amazon Plants”