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Related Concept Videos

Antifungal Agents01:15

Antifungal Agents

Amphotericin B is a broad-spectrum antifungal agent that exploits structural differences between fungal and mammalian cell membranes. Its amphipathic structure—featuring a hydrophobic polyene-lactone ring and a hydrophilic region containing mycosamine and carboxylic acid groups—enables selective binding to ergosterol, a sterol predominantly found in fungal plasma membranes. This selective interaction underlies the drug’s antifungal activity, although weak binding to cholesterol contributes to...
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Fungal Group Zygomycota

Zygomycota, previously classified as a distinct fungal group, are primarily terrestrial, saprophytic molds that play a crucial role as decomposers. Recent phylogenetic studies have revealed that these fungi are now divided into two major clades — Mucoromycota, which includes many symbiotic species, and Zoopagomycota, which primarily consists of parasitic and pathogenic fungi. These groups exhibit distinct ecological roles and reproductive strategies while sharing key structural and...
Diversity of Protists III01:27

Diversity of Protists III

Rhizaria are a diverse group of unicellular protists characterized by their threadlike cytoplasmic extensions known as pseudopodia. These structures aid in both locomotion and feeding, giving Rhizaria an amoeboid appearance. Their amoeboid morphology once led to taxonomic confusion, but molecular phylogenetics has clarified their evolutionary placement and emphasized their shared use of pseudopodia despite divergent lineages.This clade comprises diverse lineages such as Chlorarachniophyta,...
Red Algae01:23

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Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
Preparation of Diols and Pinacol Rearrangement01:57

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A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products
07:59

A Customizable Approach for the Enzymatic Production and Purification of Diterpenoid Natural Products

Published on: October 4, 2019

A new diterpenoid from Rhizophora apiculata.

Ming-Zhe Gao1, Xiao-Yan Yuan, Meng-Chun Cheng

  • 1Key Laboratory of Separation Science for Analytical Chemistry, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China.

Journal of Asian Natural Products Research
|July 15, 2011
PubMed
Summary

Researchers discovered a new diterpenoid from the mangrove Rhizophora apiculata stems. This compound, along with seven known ones, expands our knowledge of mangrove phytochemistry.

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Area of Science:

  • Natural Product Chemistry
  • Phytochemistry
  • Marine Biology

Background:

  • Mangrove plants, such as Rhizophora apiculata, are rich sources of bioactive compounds.
  • Understanding the chemical constituents of mangroves is crucial for discovering new therapeutic agents.

Purpose of the Study:

  • To isolate and characterize novel and known compounds from the stems of Rhizophora apiculata.
  • To contribute to the phytochemical knowledge of mangrove species.

Main Methods:

  • Isolation of compounds using chromatographic techniques.
  • Structure elucidation using Mass Spectrometry (MS), Infrared Spectroscopy (IR), and Nuclear Magnetic Resonance (NMR) spectroscopy (1D and 2D, including HMQC, HMBC, NOESY).

Main Results:

  • A new diterpenoid, 15(S)-isopimar-7-en-1-oxo-15,16-diol, was identified.
  • Seven known compounds were isolated from Rhizophora apiculata for the first time.
  • The structure of the new compound was confirmed through comprehensive spectroscopic analysis.

Conclusions:

  • The study successfully identified a new diterpenoid and several known compounds from Rhizophora apiculata.
  • This research enhances the understanding of the chemical diversity within mangrove ecosystems.
  • The findings may provide a basis for further investigation into the biological activities of these compounds.