The aerial parts of Erigeron annuus (L.) PERS., E. philadelphicus L. and E. sumatrensis RETZ. (Compositae) have been investigated chemically. A new sesquiterpenoid, 6beta,14-epoxyeudesm-4(15)-en-1beta-ol (1), and a new diterpenoid, philadelphinone (6), have been isolated from E. philadelphicus. Four new sesquiterpenoids, (7R*)-opposit-4(15)-ene-1beta,7-diol (2), 11-methoxyopposit-4(15)-en-1beta-ol (3), 15-methoxyisodauc-3-ene-1beta,5alpha-diol (4) and 10alpha-hydroxycadin-4-en-15-al (5), have been isolated from E. annuus. Compounds 2 and 4 were also isolated from E. sumatrensis. The structures of the new compounds were elucidated on the basis of their spectral data.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1248/cpb.51.545 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Apomixis at a high resolution: unravelling diplospory in Asteraceae.
J Exp Bot
December 2024
Department of Biosciences, Università degli Studi di Milano, Via Giovanni Celoria 26, 20133, Milano, Italy.
Apomictic plants are able to produce clonal seeds. This reproductive system allows the one-step fixation of any valuable trait for subsequent generations and would pave the way for a revolution in the agricultural system. Despite that, the introduction of apomixis in sexually reproducing crops has been hampered due to the difficulty in characterising its genetic regulation.
View Article and Find Full Text PDFInvestigating the antiviral activity of Erigeron annuus (L.) pers extract against RSV and examining its active components.
J Ethnopharmacol
November 2024
School of Pharmacy, Shandong University of Traditional Chinese Medicine, Ji'nan, 250355, China. Electronic address:
Ethnopharmacological Relevance: The plants in the genus Erigeron are known to exhibit antiviral activities, including those against the respiratory syncytial virus (RSV). In traditional medicine Erigeron annuus (L.) Pers (EA) has been used in the treatment of pulmonary diseases and acute infectious hepatitis.
View Article and Find Full Text PDF[Research on alien invasive plants in Jingzhou County, Hunan Province, China].
Ying Yong Sheng Tai Xue Bao
May 2024
Central South University of Forestry and Technology, Changsha 410004, China.
Harm from alien invasive plants is increasing in Jingzhou County, Hunan Province. Based on a one-year field investigation and available literature, we investigated species composition, origin, flora, degree of harm and distribution pattern of invasive plants in the county. The results showed that there were 34 invasive plant species from 27 genera and 16 families in this County.
View Article and Find Full Text PDFGirdling behavior of the longhorn beetle modulates the host plant to enhance larval performance.
BMC Ecol Evol
April 2024
School of Biological Sciences, Seoul National University, 00826, Seoul, Republic of Korea.
Background: Preingestive behavioral modulations of herbivorous insects on the host plant are abundant over insect taxa. Those behaviors are suspected to have functions such as deactivation of host plant defenses, nutrient accumulation, or modulating plant-mediated herbivore interactions. To understand the functional consequence of behavioral modulation of insect herbivore, we studied the girdling behavior of Phytoecia rufiventris Gautier (Lamiinae; Cerambycidae) on its host plant Erigeron annuus L.
View Article and Find Full Text PDFHabitat Degradation Facilitates the Invasion of Neophytes: A Resurvey Study Based on Permanent Vegetation Plots in Oak Forests in Slovenia (Europe).
Plants (Basel)
March 2024
Department of Forest Ecology, Slovenian Forestry Institute, Večna pot 2, 1000 Ljubljana, Slovenia.
The spread of neophytes (non-native plant species) challenges the conservation status and ecological integrity of forests, especially in lowland areas. Long-term resurvey studies are needed to evaluate the temporal dynamics of neophytes in forests; however, such data are scarce. In 2023, we resampled a set of 45 permanent vegetation plots (established in 1992/93) in two forest vegetation types: oak-hornbeam forests dominated by and colline oak-beech forests dominated by .
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!