ՊՍՊ | ՊƔo=ѵ
ZUMSTEG ET AL .
&! ƒՊ -1|;ub-ѴrorѴ-|bomķ b7;m|b=b;70Ɛѵ"u!l;|-];molb1v -m-Ѵvbvķbmruo1;vv-|;uvo=|_;=ou 7b==;u;m|r-r;ul-1_bm;vŐ ƐŊ Ɠő located at the same paper plant. For each v-lrѴ;ķ|_; total bacterial population and |_; Ŋ|u;-|;7=u-1|bomķu;ru;v;m|bm]|_; live 0-1|;ub-ѴrorѴ-|bomķ;u;t-m|b=b;7
m|_;o|_;u_-m7ķ|_;1Ѵ;-u=bѴ|u-|;ķ_b1_bv_;-bѴu;71;7bmr-u|b - 1Ѵ;vķ-m7u;ru;v;m|v-|;uѴ;-bm]|_; Ɛ|o0;u;v;7=ou-ѴѴr-r;u l-1_bm;vķv_o;7ru;7olbm-m|Ѵ|_;|o|uo0Ѵbm]];m;u-ĺ b==;u;m| possibilities could account for the seemingly contradicting results. buv|ķ Ɛ;r;ub;m1;7lou;=u;t;m|l-bm|;m-m1;r;ubo7v7;|o|_; defective paper sheets. These different frequencies could influence the bacterial population. The nearly complete absence of Tepidimonas vrrĺbm|_;_b|;-m7ru;vv-|;u-vķ_o;;uķ;uvurubvbm]ķ-v|_; defect problems remained after maintenance. Even more surprising is that although Tepidimonas spp. were the most abundant genera in slime 7;rovb|vom|_;r-r;uv_;;|vo= Ɛķ|_;;u;=om7|o0;ru;v;m| bm-ѴѴ1Ѵ;-u=bѴ|u-|;vv;7=ou|_;u-l-|;ub-Ѵru;r-u-|bomŐ;ĺ]ĺķrѴrbm]ő and abundantly identified in all waters of the smoothly running paper machines PM3 and PM4. One explanation could be that Tepidimonas ķ together with Chryseobacterium ķ ]uo -v 1olr-1| 0bo=bѴlv -m7 vѴbl;v in PM1 exclusively due to an unknown trigger. This would then lead to 7;=;1|r-r;u7;|o7;rovb|o=|_;vѴbl;ĺ)_;m|_;v;vѴbl;v7bvѴo1-|;ķ |_;u;l-bmbm|_;r-r;u;0ĺvv1_ķ0=-u|_;l-foub|o=0-1|;ub-Ѵ 1;ѴѴv ru;v;m| bm |_; 0bo=bѴl Őbĺ;ĺķ Tepidimonas vrĺőoѴ7 0; =bѴ|;u;7 o| by the paper web and not enter the white and press water. Such a trig- ger for film formation could be the identified species Acidovorax ķl-bmѴ identified in PM1 white water. This genus was shown to be an import- -m|1oѴomb;uo=|_;_;-70o-7-r|;7|o|_;--bѴ-0Ѵ;1-u0omvou1;v Ő-v_-l-ķ ubm1;ķ"bl-oŊ ;-mobuķş;-Ѵb;ķƑƏƏƖő-m7-0m7-m|bm -1|b-|;7vѴ7];1ollmb|b;vŐ)bѴѴ;lvşbѴѴbvķƑƏƏƔőĺ|bvhmom=ou
b|v-]]u;]-|bm]-0bѴb|b;v7;|o];m;u-|bomo=-m;|u-1;ѴѴѴ-u l-|ub =ou-||-1_l;m|Ő;bfv|u-ķ b1_Ѵ;uķb-m]ķѴ--ķş$um;uķƑƏƏƖőĺvv1_ Acidovorax vrĺ1om|ub0|;|oom]0bo=bѴlvŐb;|-ѴĺķƑƏƐƑőĺ|bv;u;ѴѴ possible that Chrysobacterium sp. and Tepidimonas spp. require the extra- cellular matrix produced by Acidovorax vrĺ|o];m;u-|;1olr-1|vѴbl;vķ -m7ķ-vv1_ķ1-v;|_;r-r;u7;=;1|vĺ$_;0-1|;ub-1;ѴѴvo= Acidovorax vrĺķ_o;;uķ-u;mo|r-u|o=|_;vѴbl;ĺ$_bvbv1omvbv|;m|b|_oѴ-ub;|-Ѵĺ ŐƑƏƏƐő_ov_o;7|_-| Bacillus sp. uses Deinococcus geothermalis as an -bѴb-u=-1|ou|o=oul0bo=bѴlvbmr-r;ul-1_bm;vĺm|;u;v|bm]Ѵķvol; Bacillus species then emit heat-stable metabolites in order to inhibit the growth of Deinococcus geothermalis . This could explain that we did not find Acidovorax sp. in our samples as it was suppressed by the two later 1oѴomb;uvĺmo|_;u;rѴ-m-|bombv|_-| Acidovorax vrĺķ-v-rubl-u1oѴo - mb;ubvru;v;m|bm Ɛ7;|o|_;lou;=u;t;m|l-bm|;m-m1;v-m7|_-| the trigger for the biofilm formation is due to another factor. Ѵ|_o]_|_bvv|7o==;uv-mo;ub;o=|_;Ѵbh;Ѵ1om|ub0|ou 0-1|;ub-Ѵ =-1|ouv bm vѴbl; =oul-|bomķ 0;vb7;v mo| bm;v|b]-|bm] u;rѴb - 1-|;v-lrѴ;vķ-b|-Ѵu;l-bmbm]=-1|ou-Ѵvomo|bm;v|b]-|;7_;u;bv|_; substrate and environment upon which the slime is formed. Surface lour_oѴo]ķvu=-1;1_;lbv|uķ-m7r_vb1-Ѵ1om7b|bomvv1_-vmou - mally stagnant regions in water flows occasionally exposed to shear =Ѵo-m7ņouru;v;m1;o=b0u-|bom;m1ou-]bm]7;|-1_l;m|ķ-v;ѴѴ-v o];m-|bom -m7 lobv|u; Ѵ;;Ѵvķ ;rovu; |o 0bo1b7; 1om1;m|u-|bom -ub-|bomvķ;|1ĺķ-ѴѴ1om|ub0|;|o|_;blr-1|o=0bo=bѴl-m7vѴbl;bmv;m - sitive processes such as papermaking.
Made with FlippingBook - Online catalogs