Abstract
Negative phototropism in the rhizoid of Bryopsis plumosa was analyzed. The growth zone of the rhizoid was confined to the apical hemisphere, as is typical of tip growth. Upon unilateral illumination, the rhizoid bent away from the light source with a “bulging” manner. The photoreceptive site for phototropism was also restricted to the apical hemisphere. The action spectrum for this negative phototropism was determined from fluence-response curves that were obtained after fixing the duration of illumination at 60 min and varying the fluence rate between 0.1 and 3.0 W m-2. The action spectrum had a large peak at 467 nm and smaller peaks at 378 and 414 nm, resembling the action spectra of certain other blue-light responses.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
