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Record #158382:
Inter specific variability in UV-B sensitivity of Antarctic bacteria / Jan H. Vosjan, Marek K. Zdanowski.
Title: | Inter specific variability in UV-B sensitivity of Antarctic bacteria / Jan H. Vosjan, Marek K. Zdanowski. |
Author(s): | Vosjan, Jan H. Zdanowski, Marek K. |
Date: | 2001. |
In: | Circumpolar Journal. (2001.), Vol. 16(2) (2001) |
Abstract: | Presents results of study of effect of UV-B radiation on 25 psychrophilic or psychrotrophic colony-forming bacteria, with distinct ecophysiological and morphological properties, isolated from various marine habitats in Admiralty Bay and Drake Passage, Antarctica. Parameters investigated were survival, as determined by bacterial growth on solid agar; total bacterial abundance determined by acridine orange staining and epifluorescence microscopy; biovolume; ATP content; and changes in enzyme patterns. Survival rates were higher for strains isolated from water column that for those isolated from micro environments such as gut of zooplankton, faeces, sea ice and deep water; and also higher for pigmented isolates with dark orange, yellow or beige colour. ATP content per cell increased in initial phase of exposure to UV-B, and decreased rapidly thereafter, indicating inhibition of anabolic reactions with continued ATP production. Some enzymes were unaffected by UV-B radiation and some lost activity, but nitrate reduction was induced in all cases. |
Notes: | Circumpolar Journal. Vol. 16(2) :1-15 (2001). |
Keywords: | 574 -- Ecology. 574.5 -- Marine and freshwater ecology. 579 -- Microbiology and bacteriology. 574.2.043/.045 -- Organisms, influence of physical environment. 551.521.63 -- Ultraviolet radiation. F -- Biological sciences. (*7) -- Antarctic regions. (*726.1) -- South Shetland Islands. (*726.14) -- King George Island group. (*80) -- Southern Ocean. (*821) -- Drake Passage. |
SPRI record no.: | 158382 |
LDR 02196naa#a2200000#a#4500 001 SPRI-158382 005 20240328171706.0 007 ta 008 240328s2001####xx#a##|##|###|0||#0|eng#d 035 ## ‡aSPRI-158382 040 ## ‡aUkCU-P‡beng‡eaacr 100 1# ‡aVosjan, Jan H. 245 10 ‡aInter specific variability in UV-B sensitivity of Antarctic bacteria /‡cJan H. Vosjan, Marek K. Zdanowski. 260 ## ‡a[S.l.] :‡b[s.n.],‡c2001. 300 ## ‡ap. 1-15 :‡bdiags., tables. 500 ## ‡aCircumpolar Journal. Vol. 16(2) :1-15 (2001). 520 3# ‡aPresents results of study of effect of UV-B radiation on 25 psychrophilic or psychrotrophic colony-forming bacteria, with distinct ecophysiological and morphological properties, isolated from various marine habitats in Admiralty Bay and Drake Passage, Antarctica. Parameters investigated were survival, as determined by bacterial growth on solid agar; total bacterial abundance determined by acridine orange staining and epifluorescence microscopy; biovolume; ATP content; and changes in enzyme patterns. Survival rates were higher for strains isolated from water column that for those isolated from micro environments such as gut of zooplankton, faeces, sea ice and deep water; and also higher for pigmented isolates with dark orange, yellow or beige colour. ATP content per cell increased in initial phase of exposure to UV-B, and decreased rapidly thereafter, indicating inhibition of anabolic reactions with continued ATP production. Some enzymes were unaffected by UV-B radiation and some lost activity, but nitrate reduction was induced in all cases. 650 07 ‡a574 -- Ecology.‡2udc 650 07 ‡a574.5 -- Marine and freshwater ecology.‡2udc 650 07 ‡a579 -- Microbiology and bacteriology.‡2udc 650 07 ‡a574.2.043/.045 -- Organisms, influence of physical environment.‡2udc 650 07 ‡a551.521.63 -- Ultraviolet radiation.‡2udc 650 07 ‡aF -- Biological sciences.‡2local 651 #7 ‡a(*7) -- Antarctic regions.‡2udc 651 #7 ‡a(*726.1) -- South Shetland Islands.‡2udc 651 #7 ‡a(*726.14) -- King George Island group.‡2udc 651 #7 ‡a(*80) -- Southern Ocean.‡2udc 651 #7 ‡a(*821) -- Drake Passage.‡2udc 700 1# ‡aZdanowski, Marek K. 773 0# ‡7nnas ‡tCircumpolar Journal. ‡gVol. 16(2) (2001) ‡wSPRI-78707 917 ## ‡aUnenhanced record from Muscat, imported 2019 948 3# ‡a20240328