Allelopathic potential of Nepeta rtanjensis Diklić & Milojević and Nepeta cataria L. essential oils on selected crop species
2013
Autori:
Nestorović Živković, JasminaDmitrović, Slavica
Jovanović, Vladan
Šiler, Branislav
Ristić, Mihailo
Cvetković, Jelena
Živković, Suzana
Mišić, Danijela
Ostala autorstva
Vinterhalter, DraganTip dokumenta:
Konferencijski prilog (Objavljena verzija)
,
© 2013 by the Serbian Plant Physiology Society
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Allelopathy, the chemical mechanism of plant interference, was detected in many plants from fam. Lamiaceae, including Nepeta species. The majority of Nepeta species are characterized by the presence of nepetalactone as the dominant component in essential oils. This monoterpenoid lactone exists in the form of one or more stereoisomers, and corresponding enantiomers. The present study investigates the allelopathic potential of Nepeta rtanjensís Diklić & Milojević and Nepeta cataria L. essential oils which differ in their qualitative nepetalactone content, on the seed germination of four selected crop species (Lepidium sativum L., Lactuca sativa L. cv. Majska Kraljica, Lotus corniculatus L., cv. Bokor and Brassica napus L. cv. napus). GC-MS analysis revealed that trans,cis- stereoisomer of nepetalactone is dominant in essential oil of N. rtanjensis (72,03%). Essential oil of N. cataria used in the present study is characterized by the high content of cís, trans-nepetalactone (90%). Both essential oils exhibited significant allelopathic potential against all model species, with N. rtanjensís essential oil being more efficient. These results suggest that nepetalactone stereochemistry significantly determines its allelopathic potential, and that the effect of both nepetalactone stereoisomers is dose-dependent. Essential oils reduced seed germination by influencing germination dynamics, or by irreversibly inhibiting the germination of seeds. Among tested crops, L. sativa was shown to be the most sensitive to allelopathic potential of N. rtanjensis and N. cataria essential oils, while B. napus was the most tolerant.
Finansiranje / projekti:
- Fiziološka, hemijska i molekularna analiza diverziteta odabranih retkih i ugroženih biljnih vrsta u cilju ex situ zaštite i produkcije biološki aktivnih jedinjenja (RS-MESTD-Basic Research (BR or ON)-173024)
- Primene niskotemperaturnih plazmi u biomedicini, zaštiti čovekove okoline i nanotehnologijama (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-41011)
U:
- Vinterhalter D, editor. Programme and Abstracts: 1st International Conference on Plant Biology and 20th Symposium of the Serbian Plant Physiology Society; 2013 Jun 4-7; Subotica, Belgrade. Belgrade: Serbian Plant Physiology Society; 2013. p. 81.