scholarly journals Screening for Plant Volatile Emissions with Allelopathic Activity and the Identification of L-Fenchone and 1,8-Cineole from Star Anise (Illicium verum) Leaves

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 457 ◽  
Author(s):  
Gaowa Kang ◽  
Maryia Mishyna ◽  
Kwame Sarpong Appiah ◽  
Masaaki Yamada ◽  
Akihito Takano ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Inhibitory Activity ◽  
Test Plant ◽  
Hypocotyl Growth ◽  
Allelopathic Potential ◽  
Volatile Emissions ◽  
Allelopathic Activity ◽  
Plant Volatile ◽  
Star Anise ◽  
Illicium Verum

One hundred and thirty-nine medicinal plant species were screened for their allelopathic activity through volatile emissions using Lactuca sativa as a test plant. Volatile emissions from the leaves of star anise (Illicium verum) showed the highest inhibition (100%) on the radicle and hypocotyl growth. Using headspace gas collection and gas chromatography-mass spectrometry (GC-MS), seven major volatile compounds from the leaves of star anise, including α-pinene, β-pinene, camphene, 1,8-cineole, D-limonene, camphor, and L-fenchone were detected. To determine volatile compounds that may contribute to the inhibitory activity of star anise, the allelopathic potential of individual volatiles from star anise was evaluated using the cotton swab bioassay. The EC50 was calculated for each of the seven identified compounds. L-fenchone showed the strongest growth inhibitory activity (EC50 is 1.0 ng/cm3 for radicle and hypocotyl growth of lettuce), followed by 1,8-cineole, and camphene. This is the first report that L-fenchone could be an important volatile allelochemical from the leaves of star anise. From the actual concentration of each volatile compound in headspace and EC50 value, we concluded that the four volatile compounds, including L-fenchone, 1,8-cineole, β-pinene, and camphene are the most important contributors to the volatile allelopathy of star anise.

scholarly journals Evaluation of Allelopathic Activity of Chinese Medicinal Plants and Identification of Shikimic Acid as an Allelochemical from Illicium verum Hook. f.

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 684
Author(s):  
Aniya ◽  
Yoshihiro Nomura ◽  
Fuerdeng ◽  
Kwame Sarpong Appiah ◽  
Yoshiharu Fujii
Keyword(s):  
Medicinal Plants ◽  
Plant Species ◽  
Crude Extract ◽  
Shikimic Acid ◽  
Hypocotyl Growth ◽  
Radicle Growth ◽  
Allelopathic Potential ◽  
Star Anise ◽  
Chinese Medicinal Plants ◽  
Illicium Verum

This study focused on the potential allelopathy of 50 species of Chinese medicinal plants, which are mainly distributed in the Xinjiang Uyghur Autonomous Region, Inner Mongolia, and Yunnan Province. The “sandwich method” was adopted and used for the screening for allelopathic potential among these plant species. Further phytotoxic evaluation of the candidate species was conducted by applying plant extracts to crops and weed species. The results of this study indicated that among the 50 medicinal plant species evaluated, the fruits of Illicium verum Hook. f. (star anise) showed the most significant allelopathic potential through the leaf leachates. Shikimic acid was identified to be the main bioactive compound (about 7% dry weight) in star anise by reversed-phase High Performance Liquid Chromatography (RP-HPLC) analysis. The phytotoxic bioassay indicated that both the crude extract of the Chinese star anise and the synthetic shikimic acid showed strong inhibitory activity on the radicle and hypocotyl growth of lettuce. The radicle growth inhibition of lettuce caused by the crude extract of star anise could be explained by the contribution of the biological activity of shikimic acid. In conclusion, shikimic acid could be a putative allelochemical in the fruits of Illicium verum and could be utilized in sustainable weed management.

scholarly journals Evaluation of the Allelopathic Potential of Leaf Extracts from Dischidia imbricata (Blume) Steud. on the Seedling Growth of Six Test Plants

2019 ◽  
Vol 47 (4) ◽  
pp. 1019-1024
Author(s):  
Ramida KRUMSRI ◽  
Sutjaritpan BOONMEE ◽  
Hisashi KATO-NOGUCHI
Keyword(s):  
Root Growth ◽  
Plant Species ◽  
Seedling Growth ◽  
Shoot Growth ◽  
Phleum Pratense ◽  
Italian Ryegrass ◽  
Test Plant ◽  
Herbaceous Plant ◽  
Allelopathic Potential ◽  
Allelopathic Activity

Dischidia imbricata (Blume) Steud. is a herbaceous plant belonging to the Apocynaceae family. This plant has been reported to possess various pharmacological properties, however, there has been no report related to its allelopathic properties. Therefore, the aqueous methanol extracts of D. imbricata were examined for possible allelopathic activity against the seedling growth of dicotyledonous plants; lettuce (Lactuca sativa L.), cress (Lepidium sativum L.), and alfalfa (Medicago sativa L.), and monocotyledonous plants; barnyard grass (Echinochloa crus-galli (L.) P. Beauv.), Italian ryegrass (Lolium multiflorum Lam.), and timothy (Phleum pratense L.). D. imbricata extracts exhibited a significant inhibition on the seedling growth of all the test plant species at the concentration ≥ 0.01 g dry weight equivalent extract mL-1. The seedling growth of lettuce showed the highest inhibition with D. imbricata extracts followed by alfalfa and cress, whereas the least inhibition was found on the seedling growth of timothy. Concentrations required for 50% inhibition (I50 values) of all the test plant species were in the range of 0.003 to 0.067 g D.W. equivalent extract mL-1 for shoot growth, and 0.018 to 0.026 g D.W. equivalent extract mL-1 for root growth. In addition considering the I50 values, the root growth of the test plant species was more sensitive to D. imbricata extracts than their shoot growth, except cress seedling. These results indicated that D. imbricata may possess allelopathic activity and may contain allelopathic substances.   ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 4, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

Anti-biofilm potential of some plant volatile compounds against Proteus mirabilis

Planta Medica ◽  
2016 ◽  
Vol 81 (S 01) ◽  
pp. S1-S381
Author(s):  
JAA do Nascimento Júnior ◽  
BS dos Santos ◽  
LCA de Araújo ◽  
AVA Lima ◽  
TD da Silva ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Proteus Mirabilis ◽  
Plant Volatile ◽  
Plant Volatile Compounds

Low moisture stress influences plant volatile emissions affecting herbivore interactions in tomato, Solanum lycopersicum

2021 ◽  
Author(s):  
Kamala Jayanthi Pagadala Damodaram ◽  
Hanamant Shivalingappa Gadad ◽  
Saravan Kumar Parepally ◽  
Sridhar Vaddi ◽  
Laxman Ramanna Hunashikatti ◽  
...  
Keyword(s):  
Solanum Lycopersicum ◽  
Moisture Stress ◽  
Volatile Emissions ◽  
Plant Volatile ◽  
Herbivore Interactions ◽  
Stress Influences

scholarly journals Effect of Prunus serotina Ehrh. Volatile Compounds on Germination and Seedling Growth of Pinus sylvestris L.

Forests ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 846
Author(s):  
Aleksandra Halarewicz ◽  
Antoni Szumny ◽  
Paulina Bączek
Keyword(s):  
Pinus Sylvestris ◽  
Volatile Compounds ◽  
Scots Pine ◽  
Prunus Serotina ◽  
Gas Chromatography Mass Spectrometry ◽  
Volatile Fraction ◽  
Black Cherry ◽  
Allelopathic Potential ◽  
Pine Seedlings ◽  
Phytotoxic Effect

In temperate European forests invaded by Prunus serotina Ehrh. (black cherry), a reduction in the spontaneous regeneration capacity of Pinus sylvestris L. (Scots pine) is observed. It could be caused by various factors, including allelopathic properties of this invasive plant. In this study the phytotoxic effect of P. serotina volatile compounds on P. sylvestris and the seasonal variation in this effect were assessed. Simple assays showed that volatiles emitted from P. serotina leaves significantly inhibited root growth of P. sylvestris seedlings. Their negative effect on stem growth was much weaker. The strongest phytotoxic effect on Scots pine seedlings was caused by the volatiles emitted from the youngest black cherry leaves. In fresh foliage of P. serotina, nineteen volatile organic compounds were identified by gas chromatography–mass spectrometry (GC–MS). The dominant compound was benzaldehyde. On the basis of tests of linalool alone, it was found that this monoterpene present in the volatile fraction has a strong allelopathic potential and inhibits germination, root elongation and shoot elongation of pine seedlings. The results of our research suggest that volatile compounds from P. serotina leaves could limited survival of P. sylvestris individuals in the seedling phase.

scholarly journals Composition, cytotoxicity and antioxidant activities of polyphenols in the leaves of star anise (Illicium verum Hook. f.)

ScienceAsia ◽  
2019 ◽  
Vol 45 (6) ◽  
pp. 532 ◽  
Author(s):  
Ying Wang ◽  
Tao Liu ◽  
Ming-Fen Li ◽  
Yun-Shu Yang ◽  
Rong Li ◽  
...  
Keyword(s):  
Antioxidant Activities ◽  
Star Anise ◽  
Illicium Verum

Evaluation of allelopathic activity of 178 Caucasian plant species

2016 ◽  
Vol 5 (1) ◽  
pp. 75 ◽  
Author(s):  
Hossein Mardani ◽  
Elena Kazantseva ◽  
Vladimir Onipchenko ◽  
Yoshiharu Fujii
Keyword(s):  
Plant Species ◽  
Industrial Applications ◽  
Test Plant ◽  
Radicle Growth ◽  
The Caucasus ◽  
Oxalis Acetosella ◽  
Caucasus Region ◽  
Allelopathic Activity ◽  
Plant Families ◽  
Convallaria Majalis

<p>Seeking for new plant species as the main resources of bioactive chemicals is one of the fundamental steps in biological production science. The main objective of this paper was to screen for the allelopathic activity of Caucasian plant species in order to select the strongest allelopathic species for future studies. Dried leaves of 178 plant species collected from the Teberda State Reserve in the Caucasus region were assayed by the Sandwich method for allelopathic activity, using <em>Lactuca sativa</em> (lettuce) as the test plant. To evaluate allelopathic activity, standard deviation (SD) and SD of variance (SDV) of radicle growth inhibition were calculated. The highest (100%) inhibition was observed for <em>Artemisia austriaca</em> Jacquin, followed by <em>Oxalis acetosella</em> L., <em>Convallaria majalis</em> L. and <em>Polygonatum odoratum</em> (Miller). Among plant families, members of the Fabaceae caused greatest inhibition of radicle growth. Plants classified as “poisonous” had the highest allelopathic activities, followed closely by those designated “medicinal”. Results of this study will guide the identification of novel phytotoxic chemicals useful in medicinal and/or industrial applications.</p>

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