An investigation of the chemical composition of Chinese liverworts led to the isolation of six new caged clerodane-type diterpenoids, scaparins A-C (-) from and scaparins D-F (-) from . An unknown -trachylobane diterpenoid () and three known terpenoid derivatives (-) were obtained from . The structures of the compounds were established on the basis of physical data (IR, UV, HRESIMS, and 1D and 2D NMR), and the absolute configurations were unequivocally confirmed by comparison of the experimental and calculated electronic circular dichroism spectra. Preliminary bioassays showed that compounds - exhibited moderate to weak quinone reductase-inducing activity in Hepa-1c1c7 cells.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.jnatprod.0c01284 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A pair of LysM receptors mediates symbiosis and immunity discrimination in Marchantia.
Cell
January 2025
New Cornerstone Science Laboratory, Key Laboratory of Plant Carbon Capture, CAS Center for Excellence in Molecular Plant Sciences, Institute of Plant Physiology and Ecology, SIBS, Chinese Academy of Sciences, Shanghai 200032, China; School of Life Sciences and Technology, Shanghai Tech University, Shanghai 201210, China. Electronic address:
Most land plants form symbioses with microbes to acquire nutrients but also must restrict infection by pathogens. Here, we show that a single pair of lysin-motif-containing receptor-like kinases, MpaLYR and MpaCERK1, mediates both immunity and symbiosis in the liverwort Marchantia paleacea. MpaLYR has a higher affinity for long-chain (CO7) versus short-chain chitin oligomers (CO4).
View Article and Find Full Text PDFFungal Planet description sheets: 1697-1780.
Fungal Syst Evol
December 2024
Westerdijk Fungal Biodiversity Institute, P.O. Box 85167, 3508 AD Utrecht, The Netherlands.
Novel species of fungi described in this study include those from various countries as follows: , from accumulated snow sediment sample. , on leaf spots of . , on submerged decaying wood in sea water, on , as endophyte from healthy leaves of .
View Article and Find Full Text PDFDecoding the genetic basis of secretory tissues in plants.
Hortic Res
January 2025
State Key Laboratory of Plant Diversity and Specialty Crops, Wuhan Botanical Garden of Chinese Academy of Sciences, Wuhan 430074, China.
Although plant secretory tissues play important roles in host defense against herbivores and pathogens and the attraction of insect pollinators, their genetic control remains elusive. Here, it is focused that current progress has been made in the genetic regulatory mechanisms underpinning secretory tissue development in land plants. C1HDZ transcription factors (TFs) are found to play crucial roles in the regulation of internal secretory tissues in liverworts and as well as external secretory tissues in peach.
View Article and Find Full Text PDFStreamlined regulation of chloroplast development in the liverwort Marchantia polymorpha.
Cell Rep
September 2024
Department of Plant Sciences, University of Cambridge, Cambridge CB3 EA, UK. Electronic address:
Chloroplasts develop from undifferentiated plastids in response to light. In angiosperms, after the perception of light, the Elongated Hypocotyl 5 (HY5) transcription factor initiates photomorphogenesis, and two families of transcription factors known as GOLDEN2-LIKE (GLK) and GATA are considered master regulators of chloroplast development. In addition, the MIR171-targeted SCARECROW-LIKE GRAS transcription factors also impact chlorophyll biosynthesis.
View Article and Find Full Text PDFThe BNB-GLID module regulates germline fate determination in Marchantia polymorpha.
Plant Cell
September 2024
State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China.
Germline fate determination is a critical event in sexual reproduction. Unlike animals, plants specify the germline by reprogramming somatic cells at the late stages of their development. However, the genetic basis of germline fate determination and how it evolved during the land plant evolution are still poorly understood.
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!