Related Experiment Video
Updated: May 6, 2026

Sexual Crosses with the Mucoromycete Phycomyces blakesleeanus
Published on: June 6, 2025
Effects of light and temperature on sporangiophore initiation in Pilobolus crystallinus (Wiggers) Tode
1Laboratory of Applied Botany, Faculty of Agriculture, Kyoto University, 606, Kyoto, Japan.
Abstract:
Sporangiophore initiation in Pilobolus crystallinus grown in white light was induced by either a dark or a low-temperature treatment. The period of darkness necessary to induce sporangiophore initiation was shortened by lowering the temperature. Arrhenius plots for the sporangiophore-suppressing reaction in both light and darkness consisted of two straight lines with a Q10 of about 2 at lower temperatures and 8-11 at higher temperatures. The temperature at which the Q10 changed was the lower, the higher the fluence rate: 14° C at 8 W/m(2), 19.5° C at 0.24 W/m(2) and 24.5° C in darkness. Possible interpretations of these results are briefly presented.
More Related Videos
06:09Studying the Protein Quality Control System of D. discoideum Using Temperature-controlled Live Cell Imaging
Published on: December 2, 2016
11:47Natural Transformation, Protein Expression, and Cryoconservation of the Filamentous Cyanobacterium Phormidium lacuna
Published on: February 1, 2022
Related Concept Videos
Gene Regulation During Sporulation
Factors Influencing Microbial Growth: Temperature
Endospores and Sporulation
Physical Methods for Controlling Microbial Growth: Temperature
Diversity of Protists IV
Background and Environment Affect Phenotype
An example of how genetic background affects phenotype can be seen in horses. The Extension gene in horses is responsible for their coat color. A wild-type gene (EE) produces black pigment in the coat, while a mutant gene (ee) produces red pigment. A...