Abstract
In the search of new alternatives for weed control, spices appear as an option with great potential. They are rich in bioactive natural products and edible, which might minimize toxicity hazard. Marjoram (Origanum majorana L.) is an aromatic herb that has been widely employed as a seasoning herb in Mediterranean countries. Although marjoram boasts a plethora of therapeutic properties (painkiller, antibiotic, treatment for intestinal disorders, etc.), the potential for its extracts for weed control is still to be more thoroughly explored. In order to determine their phytotoxic potential, marjoram leaves were subjected to different bioguided extraction processes, using water, ethyl acetate, acetone or methanol. The most active extract (acetone) was sequentially fractionated to identify its most active compounds. This fractionation led to the isolation and identification of 25 compounds that were classified as monoterpenes, diterpenes or flavonoids. Among them, a new compound named majoradiol and several compounds are described in marjoram for the first time. The phytotoxicity of the major compounds to etiolated wheat coleoptiles was compared against that of the commercial herbicide (Logran®), with similar or higher activity in some cases. These results confirm the extraordinary potential of the extracts from this edible plant to develop safer and more environmentally friendly herbicides.
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 4
Claim · model-written summary
Fractionation of the marjoram extract isolated and identified 25 compounds.
- Taxon
- Origanum majorana
Origanum majoranat0 - Outcome
- isolation and identification of 25 compoundse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study on the Phytotoxic Potential of the Seasoning Herb Marjoram (Origanum majorana L.) Leaves”
e1“This fractionation led to the isolation and identification of 25 compounds that were classified as monoterpenes, diterpenes or flavonoids”
Claim · model-written summary
A new compound named majoradiol was identified in marjoram.
- Taxon
- Origanum majoranaOriganum majoranat0
- Outcome
- new compound named majoradiole2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study on the Phytotoxic Potential of the Seasoning Herb Marjoram (Origanum majorana L.) Leaves”
e2“a new compound named majoradiol and several compounds are described in marjoram for the first time”
Claim · model-written summary
Major compounds of marjoram showed phytotoxicity to etiolated wheat coleoptiles similar to or higher than the commercial herbicide in some cases.
- Taxon
- Origanum majoranaOriganum majoranat0
- Organ / stage
- etiolated wheat coleoptilese3
- Treatment
- major compoundse3
- Outcome
- phytotoxicitye3
- Direction
- highere3
- Comparator
- commercial herbicidee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study on the Phytotoxic Potential of the Seasoning Herb Marjoram (Origanum majorana L.) Leaves”
e3“The phytotoxicity of the major compounds to etiolated wheat coleoptiles was compared against that of the commercial herbicide (Logran®), with similar or higher activity in some cases”
Claim · model-written summary
The acetone extract was the most active phytotoxic extract among the marjoram extracts.
- Taxon
- Origanum majoranaOriganum majoranat0
- Outcome
- most active extracte4
- Qualifier
- acetonee4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“A Study on the Phytotoxic Potential of the Seasoning Herb Marjoram (Origanum majorana L.) Leaves”
e4“The most active extract (acetone) was sequentially fractionated to identify its most active compounds”