Tag Archive for 'Asteroxylon mackiei'

Potteromyces asteroxylicola, holotype in white light: (a) location of the fungus (asterisks) along the aerial axis and enations of the plant Asteroxylon mackiei; arrowhead showing animal remains; (b) plant reaction induced by the fungal attack; (c, d) higher magnifications of the framed zone from (b) showing the plant cell proliferation in response to the fungal attack; arrowheads showing hyphae; (e) conidiophores in tuft; (f) higher magnification of (e); (g) conidiophores in high magnification, slightly shrunken at their distal end, and conidia. Scale bars - 900 µm in (a); 400 µm in (b); 120 µm in (c), 45 µm in (d), 85 µm in (e), 35 µm in (f, g). Image credit: Strullu-Derrien et al., doi: 10.1038/s41467-023-43276-1.

407-Million-Years-Old Microfossils Reveal Earliest-Known Disease-Causing Fungus

Dec 12, 2023 by Enrico de Lazaro

Potteromyces asteroxylicola parasitized on an extinct species of lycopsid plant called Asteroxylon mackiei, according to a paper published in the journal...

Spiral arranged leaves can be identified at the shoot tip of Asteroxylon mackiei. Image credit: Turner et al., doi: 10.1126/science.adg4014.

407-Million-Year-Old Fossil Overturns Thinking on Evolution of Leafy Plants

Jun 20, 2023 by News Staff

Aerial parts of plants arrange their organs around stems, and this arrangement defines their structure. In most existing plant species, organs emerge at...