Phycomyces: A Change in Mechanical Properties after a Light Stimulus | Zendy

Joseph K. E. Ortega | Zendy; R. Igor Gamow | Zendy; C. Norman Ahlquist | Zendy

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Phycomyces: A Change in Mechanical Properties after a Light Stimulus

Author(s) -

Joseph K. E. Ortega,

R. Igor Gamow,

C. Norman Ahlquist

Publication year - 1975

Publication title -

plant physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.554

H-Index - 312

eISSN - 1532-2548

pISSN - 0032-0889

DOI - 10.1104/pp.55.2.333

Subject(s) - phycomyces , stimulus (psychology) , extensibility , sporangium , biophysics , biology , botany , materials science , chemistry , spore , computer science , psychology , psychotherapist , operating system

Tensile tests were conducted on the photoresponsive stage IVb sporangiophore of the fungus Phycomyces before and after a saturating light stimulus. The results demonstrate that an increase in the mechanical extensibility of the cell wall occurs after the light stimulus. This increase in mechanical extensibility occurs in the growing zone of the sporangiophore. The majority of this increase occurs in the region about 300 umeters beneath the sporangium.

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