Abstract
The cytoplasm of Acetabularia mediterranea appears to be more sensitive to UV irradiation than the nucleus, as demonstrated by a decreased survival and regeneration of anucleate fragments as compared with the nucleate ones. Irradiation of the cytoplasm only of a whole cell has the same effect as irradiation of the entire cell. When only the rhizoïd (which contains the nucleus) is irradiated, there is less injury than when the whole cell or only the cytoplasm is irradiated. Irradiation of the rhizoïd only can even cause a precocious stimulation of growth and morphogenesis. Cytological observations have demonstrated an immediate nuclear damage, even though the nucleus was not within the irradiated area.
Sign-in/Register to access full text options 
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.
