Fluorescence study on whole Antarctic fungal spores under enhanced UV irradiation

被引：14
作者：
Arcangeli, C
Zucconi, L
Onofri, S
Cannistraro, S
机构：
[1] UNIV TUSCIA,DIPARTIMENTO SCI AMBIENTALI,I-01100 VITERBO,ITALY
[2] UNIV PERUGIA,DIPARTIMENTO FIS,UNITA INFM,I-06100 PERUGIA,ITALY
来源：
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY | 1997年 / 39卷 / 03期
关键词：
Antarctic fungus; fluorescence spectroscopy; UV;
D O I：
10.1016/S1011-1344(97)00019-5
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
The optical fluorescence properties of whole Antarctic fungal spores have been investigated in order to evaluate the effects of artificial enhanced UV irradiation. The spores suspension show three main emission bands with maxima around 345, 430, and 510 nm, undergoing to substantial changes after irradiations at lambda>280 (UV-B+UV-A+ visible) and lambda>265 (UV-C+UV-B+UV-A+ visible). The optical spectroscopic analysis, conducted also on total sporal extracts, indicates the involvement of the electron-proton translocating molecules in the respiratory chain and of the carotenoid pigments in these changes. Moreover it seems that the UV irradiation is responsible for the accumulation of age pigments in the irradiated spores. (C) 1997 Elsevier Science S.A.
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页码：258 / 264
页数：7
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