UV-B induces cell death in the lichen Physcia semipinnata (J.F.Gmel)

Turkish Journal of Biology

DİLEK ÜNAL¹ 

关键词: TUNEL reaction;    acridine orange staining;    UV-B radiation;    lichen;   

学科分类：生物科学（综合）

来源: Scientific and Technical Research Council of Turkey - TUBITAK

【 摘 要 】

We have examined the consequences of Ultraviolet-B (UV-B) irradiation in the thallus of the lichen Physcia semipinnata (J.F.Gmel) in terms of cell viability and apoptotic-like formation. UV-B induced oligonucleosomal DNA fragmentation was detected by TUNEL assay and this is the first study showing DNA fragmentation in thalli. The intensity of TUNEL-positive cells after exposure to UV-B at doses up to 95.9 J/cm2 was higher in the photobiont layer than the mycobiont layer.

【 授权许可】

Unknown