Related Experiment Video
Updated: Jul 17, 2026

Elucidating β-1,3-Glucanase and Peroxidase Physicochemical Properties of Wheat Cell Wall Defense Mechanism Against Diuraphis noxia Infestation
Published on: July 26, 2024
Protoplasmic Incompatibility in PODOSPORA ANSERINA: A Possible Role for Its Associated Proteolytic Activity
1Laboratoire de Génétique, Allée des Facultés, 33405 Talence, France.
Abstract:
A mutation (modD) was selected in a gene involved in the control of protoplasmic incompatibility. Previous results (Labarere and Bernet 1979) showed that modD decreased the density of protoperithecia and caused a defect in ascospore germination. In addition, modD has a third defect: when modD stationary cells were isolated in order to obtain further development, renewal of growth rarely ensued. Instead, the modD cells lysed or produced microthalli from which normal growth never occurred. These defects were suppressed by beta-phenyl pyruvic acid, a protease inhibitor, and by the presence of a mutation (modC) that suppresses the proteases associated with protoplasmic incompatibility. The stationary wild-type cells' regeneration was inhibited by beta-phenyl pyruvic acid at levels that maintained modD cells' regeneration. These results suggest a biological role for the proteases associated with protoplasmic incompatibility.
More Related Videos
Related Concept Videos
Diversity of Protists II
Diversity of Protists IV
Fungal Phylum Microsporidia
The Proteasome
In this pathway, the target proteins are first tagged with small proteins called ubiquitin. This involves participation of a series of enzymes including— E1 (ubiquitin-activating enzyme), E2 (ubiquitin-conjugating enzyme), and E3 (ubiquitin...
Diversity of Protists I

