関連する実験動画

Updated: Jul 12, 2026

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria
09:45

Laboratory Simulation of an Iron(II)-rich Precambrian Marine Upwelling System to Explore the Growth of Photosynthetic Bacteria

Published on: July 24, 2016

人工微生物化石:シリカにおける青緑藻の永久鉱化に関する実験的研究

J H Oehler, J W Schopf

    Science (New York, N.Y.)
    |December 17, 1971
    PubMed
    まとめ

    研究者は,天然のプロセスを模倣して,微小な藻類を人工的に化石化するための新しい方法を開発しました. この技術は藻類を保存し,古代の天然標本に匹敵する化石を生み出します.

    さらに関連する動画

    Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment06:29

    Simulation of Early Earth Hydrothermal Chimneys in a Thermal Gradient Environment

    Published on: February 27, 2021

    関連する概念動画

    Green Algae01:21

    Green Algae

    Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
    Other Algae01:19

    Other Algae

    The group Stramenopiles include some phototrophic microorganisms. Members of this group possess flagella covered in numerous short, hairlike extensions, a feature that inspired the group's name, derived from the Latin words for "straw" and "hair." Some of the main categories of Stramenopiles include diatoms, golden algae, and brown algae.Diatoms are unicellular, photosynthetic eukaryotes, with over 200 known genera. They play a key role in the planktonic communities of both marine and...
    Microbial Mats01:25

    Microbial Mats

    Microbial communities forming biofilms and mats represent complex, spatially structured ecosystems where metabolic processes are stratified according to light, oxygen, and nutrient gradients. Biofilms are initial colonization stages, only a few millimeters thick, while mature microbial mats can reach centimeter-scale thickness and display intricate vertical organization. Their structural and functional heterogeneity allows microorganisms to occupy distinct ecological niches within a few...
    Red Algae01:23

    Red Algae

    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...
    The Winogradsky Column01:27

    The Winogradsky Column

    A Winogradsky column provides a powerful tool for studying microbial ecology and metabolic interactions in a stratified, self-contained environment. This artificial ecosystem, developed by Sergei Winogradsky in the late 19th century, replicates the complex biogeochemical gradients found in natural sediments, allowing researchers to observe microbial succession and interactions over time.The column is typically assembled in a transparent glass cylinder filled halfway with sediment mixed with...
    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,...