】うull.F;lC.ⅠγisIlりMie Univ.
N(j.8:61叫7i Octo】〕erl,1981
Studies on Marine Bacteria Produclng Lytic Enzymes〜VI Effect ofInorganic Sa圧s on the Retease of
Lytic Enzyme from Bacterial Celis
Isao SuGAHARA,KoichiroIiAYASm,Toshio KIMIJ】ミÅ
and Akihiko MA・rSUOKA
Facしl圧y of Fis‡1eries,Mie U11iveま一Sity
1、Ⅰ−e erfect ofino】1那Inic salts on tile王・eiease oflyticellZyme、VaSinvesとigal e(lusing bacteriaicells of stl・aillVう7 gl・0、Vn for 6 0r 8110urSin polyl)el)tOne・yeaSt eXtraC仁 王11ediunlCOnはining O.5n101e/Iof NaCl.
No】・e王11al・lくable effect on theliberaとion oflytic eIIZyme WaSObserve(lby O.5InOie/工 OfinorgaIlic salt$uSe(1in軌is stu(ly.
Chlol・a叩頭enicolat t】1eCOnCentr言ItionoflO厘/】111(1id notcauseinhil)iとion ofenzylTle ヱ■e】e;lSe by strain V37.
AmonきざVarious chelⅥicaまs,tl・iton X−100(0.1%)active to bacteriaIce】1111ell痛raIle Seer11e(ltoi)e effective for tile elution oflytic engyme fl・Om Ce11s of$tl−ain Vう7.
Key words:marine bacteria,Iytic cnzyme
11=he previous papers(SuGAiIARA et al.1978,i980,1981),Strain V37isolated from COaStalwaters grew wellin thc medium without addcdinorganic salts,but could not
extraceuulary】〕rOducclytic enzyme, Amonginorganic salts tested,NaClor KCIwas lⅥOSt effective for the product主0†10flytic ellZymel〕y StraillV37,
Thc production of extracellular enzymes may be mainly separatedilltO tWO processcs;tlle nCt Synthesisof enzyme and the followlngliberation from bacterialcells・
A rlumber of pa13erS have been r叩C:rtedon cnzyme release froml)aCterialcells(KustlNElモ
aIてd PoLLOCKi96l,PoLI−OClく1961a,i961l),1962,Cou;S a11d GROSS1967a,1967b,LAMPEN 1967,MALVEAUX and SAN CLEMEN・rEi967,SAlモGENTどょ(‡J.i969,SARGENTan(lLAMPEN1970).
However,iittle work has been recorded on the relcasc oflytic enzyme− According to PoLLOCK(1961b),thelil〕eration appeared to rcquire an enzymic reaction,Sinceit was telT叩el−ature+depe】1(lent and did not occt王r at PH vaヱuesless t】1an6.0,and tま1e e王1ZylⅥe
was not eltlted from the ceilsoflhciilus subtilis by hlgh concentrations of salts.
AltllOL唱11itllaS110t bee11denlOnStrated w王1et!1er t壬1e release oflytic enzyIⅥe行onl V37celis was e11Zさ′111ic oJ●王10と,t】1ei)reSe雨S抽dy was disignatedとO Cjar塙7the roje of
inorganic salts on the extl−aCCliular prodtlCtion oflytic enzyme by strain V37.
62 Sl、(;.\‖.ヽ=.\.1し\1■.\ゴ=l.1く==■t巨\;l】1(1ト1.\・l・ドし■川(.\
nletI10ds
Assily Of bilCtCriolyticitCtiヽ・ity
Lytic activity was determined as described prcviously(SuG斜IARA elal・1976,i978,
1卵9,1980).
Culturc of strain V37producingl)・tic enzyrrLC
CしIlture of strain V 37 capal)le oF pro(hlCinglytic enzyme was carried out as desc川)ed pl●eViotlSly(SuGAI】!AIモAど=‡g.i978,1980).
Relcasc oflytic cnzymc from bacteriillcells
Cells of strain V37were grown 之江300Cror 60r8110しl】一S WitllS】1alくi欄iIlう00
111j SaiくagL!Clliflas!くS CO‡1taif川1g2う0Illiofi30iypeptone・yeaSt eXぐま膚aCtlT)edimll.鮎cとeま−jal Cells,harvcsted by centl・ifugation,WerC WaShed twicc wit王1SOlution to bc tested an〔1 resしISi〕ellde(壬iI=lle Same SOlし1tioIltO glVe al〕Outl.ノ2」′ノづ・Of tlle Or喝inalvoluIlle・Fcr tlle rclease exper主ment,10.O mlof this sLISPenSion wasincubated at300C fcr2hours with
Shaki11g,and centriftlgCd at13,000 × g for 20 minutes at O Oc.The supernatant
SOltltio11S,aftel■\VaSili11g t王1e Ceiis aIld 二行olⅥi11CしぬationlⅥix仙▲e ねri elease experilTle11t,
WCre aSSayed fcr bacteriolytic activity after dialysIS against distilled water for3hours
at5 0c.
Results
Time eollrSe Of rele乱Se Oflytie enzyme
I】10r(lel▲to(1etel−111i11e aPl)Ⅰ明)riatei11Cul)atiolltiIlle fcr tlle‡ elease oflytic ellZy11−e
frorn strain V37ce11s,Cells grown fcr6and8hGurS WerellarVCStCd by centrifし喝ation,
WaShed twicc with distilled watcr,and tllen reSuSPendedin dist主1led water・Ce11 Sし1Sl〕eIISioIl(IO.01111)wasi11Cubated atう00C witllS董1乙lくirg,a王1(ice王1tl・ifし喝ed仁O reI】10Ve tllel)aCLerialcells at tlle times sllOWIl.Tlle Stll)el・ilatallt S()1しItions cbtこirled wel−e
assayed for bacteriolytic activity after dialysIS against distilled waterl
As s】10Ⅵ7Ili11Fig.1,i11tlle CaSe Of tlle Cells g】一OW11ねr6IlOurS,tIle decreaseillt王1e Opticaldensity or cellsuspcnsion wasobservcd dtlrirgincub乙ticまぺ:al30ut42・う%cf thc Originalcells seellled tol〕elysed玩汀一410urS Ofi!1CtlぬtioIl■ だowevel■,t蜃1ere、㌔一asI−O appreciable difreI・e11Cei111ytic と1Ctivity released fl■0】ⅥCells fしril?Ctlbation tinてeぐrlto 4】10ur鼠
0】↑ tile Otller ha】1d,i11tlle Cells grow】1foI・8110urS,tlle(1ecreaseilltile(叩ticai
density was very siight:about5.3%for2hours alld a130ut12.0%for4hotu・S.Never−
tileless,1ytic activity Hl〕erated froITICells(iid noti】1Cl・ease for4王10urS Ofircul)atioIl.
It waslikely that thei11CrCaSeinlytic activity released from celis was】ニOt(1ircctly associate(iw汀h‖le decl−eaSeiilO担jcaiderlSity ofぐeiまsLIS王)ellS呈0】1・ Lytic之Ctivity】つ1ay
Ⅲ〕erate frol¶l)aCtel・ialcelIs of straiIlV37i11CellsuspellSio11Witllinlll仇汀tm流汀111is
coIld主tion.
Mari11e Bactelイia‡)】・odtlCi咽1JyticEnz〉rn−eS−VI 63
5 0
>l一≧︼U屯 じこ千一
1 2 3 4 1 2 3 4
Reactior=ime(11「) Roao一泊nllnleくぎ1r)
C釧s grow11fol C釧S grOV州 for
8ilr 811r
Fig.1.Time course of relcase oflytic enzyme from V37cells gl.OWninl)0】ypel)tOne−yeaSt extl・aC亡】11ediしl慮11CO】1taining N之ICl(0.うI1101e/り.CF;iytic ac=vi仁さr Of ctllture filtl ate,
W:1ytic activitylibel・ate(lfroIllCells(lしIriれg WaSlli咽,R;lさ′tic acとivity】一elease(】frolll Cells(11汀i咽1nCubation.
Effcct of temperature on ttlC rCleilSC Oflytic enzyltlC
Strai11V37cellsgrown for6and8110しげS WereilarVeSted sel)aユーately by ce−−けiftl・
gatio11,WどSIled twice with distilied watcr andl−eSuS】〕elldedin〔1isti11ed water・Ccll suspe11SiollS(10.Omり werei11Cul〕ated for2I10ul−s at tlle fo1lowi‡−gtelT】Feral:tlre:0,10,
20,30,利〕鋸1dう00C.
Fig.2sllOWS tlle effect of tell叩el・atし汀e Ol一】tlle 肋e】・atioI− Oflytic eIIZyl−1e rrOl−−
strai】1V37cellsgrownil=11e】11editlm COntaini咽0.う】1101e/′lof NaCl・T】−ere WaS nO l膚emarkablc differenceinlytic activity rcleascdfromstrain V37cclls grown for6hours,
aMlO帽11t】le decreasein cl〕ticaldensity of cellsuspel?SioIli−−CreaSe(1withincl eaSi】1g te‡1叩el・attl】・el)etWeen O a11d400C.
On the other harld,thcliberation oflytic act主vity from cells grown for8hours increased withincreasⅢg temPCraturel)CtWCCn Oand400C,and thendecreasedslightly atう00C.There may bc diffcrent mechanism of enzyme川〕erationl)etWCC11Cells grown
for(§110u∫S alld =10Se for8llOtlrS.
Su(jAIIA】lA,を王AYASl‖,KⅢUlくA and MArrSUOlくA 64
ぎ∽こ茎こむ0 こ岬 宗冨し0老 中0訳
︵U 5
0 10 20 30 40 50 0 10 20 30 40 50
Rea帥Oilte汀叩eralし】re〈心c) Rea(〕l昭一=即叩闇加現C)
Ce要‡s〔j‡■OWrlfor811r Cel短∬i■OV川ior8妻1r
Fig.2.Effect of ten叩eraとureon tlle reまease ofl〉′tic enzy11−e fl−Om V37cells gl◆OWnin ド01yl〕el丸011e・yeaSteXtl・aCt】lleditlmCOIltai!1i帽NaCl(0.うIl10le/り.CF;1yticactivity ofcし11tui・e fi旺ra略ⅥJ;lさ′tic activit〉rⅢニel・ated行olⅥCells dし11・i】1g WaSIling,R;1ytic acとivityI・eleased fro111Cel】s(lul◆inglnCu短旺km.
Effcct of plIvaluc on thc relcilSC Ofl)▼tic cIlヱyme
illOrder to dell10nStrate tlle effect of pH value on tlle 川〕eratio王10flytic ellZyIⅥe fro111Strai】1Vう7ce11s即OWnin tllelllediu11て COntai11i11g NaCl(0.う】110まeノノ1),Tris・HCl
ご誘こむPニむ0こー宗讐岳名二〇訳
5 〇.
h豆>こひ佗 Cこト﹂ 〇.〇↑
Od
の.∞ 〇.の 幻.卜 〇.ト の.め 〇.g○ ば〉 ⊂⊃ の C〉 幻 C〉 ⊂〉 く0 (£〉 卜・ 卜・ 0:〉 ∝〉 00 (⊃
事)H of 代引津orlflllXtLjre 【)H oす「eao篭‡0日 nllXhげ℃
Cei妻S9「OV州 for8!1r Ce事fs9rOWn fo】−8llr
Fig,3.Effec仁OfI)Iil′alue o】1tlleI・eleaseoflytic enzy】11e fl・OnlVう7celis gl●0、Vni111)Ol〉リ】e王)tOne−
yeast extl・aCtllle(liunlCOntaini主唱NaCl(0,5mole/1).′エ、ris・HCll〕u汀e】・waS しISe(las pl−l
紬1utio11.C王γ;Ⅰさ,とic activitさr Of culture filtl・ate,W;1y仁ic activityliberate(lfl●0Im Cells(it汀iI帽
waslュ毒ng,Ⅰそ;iytic activit〉r released f王・OlllCells(】l11−i帽=−Ctib之Itio−−・
Ma】・ineIヨacたeria ProdllCii唱LyticEngy王ⅥeS−ⅤⅠ
6うbしIffer was used for washing and sus】〕ending the ceus(Fig.3).No significant differencc WaS Observcdin thelytic activityln WaShing solution and that relcased from ceils at I)H valtleSl〕etWeen6.O and8.0.Above8.うOfl)H v…11tle,tlle release oflytic e11Zyme WaS Stimulated.The decreaseirlinitialopticaldcnsity of thc cclls grown for6hours
WaS aboしIt90−94・%at】)王1values frqlⅥ6.O to9.0.
Fig.4sllOlVS the effect of王)H valtle On tile release oflytic eIIZyllle uSi11g Tris・HCl
btlf(er containlng O.5mole/lof NaCl.Thc decreaseininitiaiopticalde11Sity durlng 2 hours ofincubation was about38N96%in the cells grown for6 hoLlrS and about
26M87%in the cells grown for8hours.The maximし1m川)eration oflytic enzyme was
Obscrved at pH valucs from9.O tolO.0.
5 〇.
言>こ0の0こゝJ
くっ しゎ (⊃ lの C〉 1の O Cl O の (⊃ の C〉 の く⊃ (⊃
ミロ (D 「ヽ 卜・ の 00 ロ〉 ○ くD (D 卜.lヽ. ∞ CO ロ) く⊃
PH of「ea(川0】1r†1iXtUre F)H of r(うa(〕いOrlrmXtL汀Q
C釧S那OW11†0「8】1「 celts9‡■0㈲n for8」恒
Fig.4.Effect ofl〕H value on t圭一e relea$e OfIytic enzyme 二行0In V 37 cells gl◆0Ⅵ=−in ド01y】:e!)tOneうreaSt eXtraCt111ediuIm COntainil鳩 NaCl(0.うmo】eハ),Tris・HClbuffer containil鳩0.う1mOie/lof NaCIwas used asl)‡王soltltio11.CF;1ytic ac仁i\′iけ Of Ct‡lture filtl・ate,Ⅵ′りytic activ圧y 川〕erated fl■0王11CelIs dし11■ing waslllng,R;Iyとic activiとyl・eleased from cel】s dしIringlnCし1bation・
Effect ofinorganic salts on thc release oflytic enzyme
Ⅳ乳Cl,ⅩCl,artifici乳Iseawater;Fiきざ.5sllOWS tlle effect ofi110rga11icsaltsontlle
liberation oflytic cnzyme fromstrain V37ceils.For washlngand suspending solution,
distilled water,artificialscawatcr,NaCisolution(0.5moIc/i)and KCIsolution(0.5 mole/1)were used.Stl・ai11V37 was grow11in thc media without added NaCland
CO】1taiIli11g NaCl(0.5moie′′′′1)for6a】1d8110tlrS・
111t王1e CaSe Of cells growllilltllelllediし11Ⅵ WitIlOしIt added NaCl,‡10S脚1ifica11tlyt■ic
activity was ol〕Sel・Vedin washing solution andin thc supernata11t Of ce= suspcnsion
d6 S一丁GJもJ∧ま′tiモ〜l,!JAY′tSli】,iくf鈷壬U柁A a】1d M。もTSUOJ(A
ご誘こむ℃ニぎこ欄宗冨﹂0むp言訳
0 5
5 c⁚
雲き0﹂u.ご;霊雲仙9至て
−∵∴・
一∵∵、−‥∴てニ ーー∴∴・ 亘 Z < Z < Z
rl】e(jiし川1
medlunl
l】1ed蓋し川1 !11()(軋刷WltilOt】l COrlta圭!11日g 洲IilOしI1
00111ai!11rl(】ad血d N8CI NaCl 鋸怖血 NaC】 NaCI
C釧S9「0鞘1for611r Ce】ls伊℃裾1†or8ll「
Fig.5.Effect ofinol▲ganic だalts(artificialseawatell,NaClaIld KCl)on t壬1e reiease of lytic ellZy−11e rl−om V37cellsgI・owninl)01yl:引)tOne・)reaSt eXtl−aCt−Ⅵe(王ia w旧−OLlt ad(きed NaCland containing NaCl(0.うmole/l). CF;lytic activity of culture filtl・ate,W;1ytic acとivi丹Iibel・ate(lfroIⅥCe11s dul・ing waslling,Ⅰミ;1ytic activity
release(1froiⅥ Ceils dt汀ingincubatio11,DW;disti11e(lwater,ASW;al■tificial Seawater.
usiIlg any O‡1e Or distiiied\Vater,artificialsea\棋ILei・,NaC呈a11d KCユsolし壬t主o11S.
011tlle OtlleI・iland,i11t壬1e CaSe Of cells gro\\7】1i】1tilelllediしIm CO11tai11i帽NaCl,tlle levcloflytic elつZymC releascd from cclis was co17Sidel・ablein dist汀kd watcr rather thanin artificialseawater,NaCialld KCIsolutions,although the decrcascin optical dc17Sity of ce11suspension using dist汀kd watcr was very slight:about33%in the ce11s grown for6hours alてd ollly8%in thc cclis grown for8hours.NaCland KCIseemed tollaVe110erfect oiltユ1elil)eratiolュOflytic e】1Zyllle frolⅥCells of strain Vう7・
LiCl,MgCl望,CaC12,Na2SO。,Ⅹ2SOヰ,もi2SOヰ;As sllOWl1iIIFig.6,t】1e decrease iilOPticalde王てSity of celまsとjSPe】1S主0】1WaS】1egligi】)ユe except for78.8% of decrease fol
LiCl, Lytic activity reicased from ce11s grown for6 hours was not so slgnificant by thc treatl17ent Of everyinorganic solution tol)C tCSted. Cells grown for8hours also Showed)10Clla閥Cin optiぐaider!Sity by thc treatmcnt of MgCl望,CaC12,Na2SO4,K望SO。
an(1Li2SO..Slight川〕eration oflytic enzyme was observed when MgC12WaS uSed for WaSlli】1g and suspelldi咽tlle Cells of strai11V37.
MgSO.l,Ⅳa‡‡2PO。,N払Ⅳ0る,N軋Cl;As silOWllin Fig.7,t】1eOpticalde11Sityofcell StlSPeIISioIl(1ecIでaSe(la加ut う7−69% of origi11alcellde11Sityi】1NaNO8 and NHヰCI
SOj11tioIIS.Tlleiel′まofユibeユ・atjcIlOflytjc eilZyille froユ11Ceilsl)y NaNO3 WaS Sligiltly
high as comparcd with that by NaCl▲ No remarlくable effect on the releasc oflytic e11ZyIlle WaS Ol)SerVedI)y tlle a〔lditiollOf MgC12(0.う11101eノ/りi11tO NaCl(0,うlⅥ01e/′1)
so王utio】1.
Marine‡うactel■ia pro(111C川虜LyticEng押1eS一Ⅴ‡ 67
首∽∪名二警:意む重器﹂崇竜ヤ0訳
︵U 5
ザOSNコ
YOSN叉
竹OSへ.ゐZ
N一〇将0
.⁚一じ打ち﹂
一︵︶一﹂
.〇SNコ
州.OSN叉
WdS蒜Z
N一じ和0
いぃ一〇ロてム
ー〇コ
Cel【s grown for Ce‡ls9「OWn for
611「 8 tlr
Fig.6.王三frecと0ぎillOrganic salts(ⅠィiCl,MgC12,CaC12,Na望SO l,K2SO.1aIld Li2SO l)0Iltlle I・elease ofl〉rtic e】1ZyエⅥe rI・OlⅥ V 37 ce‖s grow11in】〕Oiy】〕el)〔0Ile・さ7ea釦 eXtl・acと
Ille(iimllCOntaining N之ICl(0.う王110:e/1).Ci?;lさ−ticact汗ity orculturefiitl・aは,W;1ytic achvit〉71il〕el{ated行0】11Cells(1しIri帽WaSll;ng,Ⅰモ;l)′tic activityl■elea冥e(1fl・O111Cells
dtlrir唱111Ctlbation.
Effcct of glllCOSC O11tliC rCleilSC Oflytic cnzymc
As sllO\Vni‡1Fig.7,altil仇嘱h‖1e ad(iitioIlOf glし1COSe(3gノ′1)s】10Wed tlle decreasei11 0Ptjcal(‡e王1Sまty or cellsuspellSioflat ai!ⅥOSt SajⅥe jel′eias co】11pare(iwjt】1t】1at WitjlOt】t added gltlCOSe,tlle川〕el ation oflytic e11ZylⅥe\\′aS Sliglltlyi11Ilil)ited.
Effcct of chlol・ilmphenicol()11thc rt!1casc oflytic cnzymc
A(】dition of cわ】cra】1叩ilenjcoi(200/吼ノユー1ユ)to a cL】1ture of stl−aillV 37illllil扇ted
the growth alldlytic enzymcl)rOduction almost completely.ChloraI叩henicolat a COnCentration oflO/鳴/mldid nGt CauSCinhibition Gf crlZyme reicasc by strain V37
(Fig.7),
Effcct(Ifl,arious cllCmicals on the releasc oflytic cllZ)・mC
As t王1e C】1e】Ⅵicals active to tllel〕aCte】・ialcellnleIlll〕rane,t】le followlr唱 CllelⅥicals wcreused;triton X−100(0.1%),tWCen80(0.1%)deoxycholic acid(0.1%),guaIlidine−HCl
(0.4M),tryl)Si11(iO/榔1111),けSOZyllle(100/Jg′ノ1111)aIldIこDTA・2Na(0.0うM).As sl10\もr】1
in Fig.8.thc dcllSity of bacterialcells did not decrcase considerabiy by the trcatment
68 Su¢上川J11もA,Ⅰ−王AlrASIl】,KmlURA and MA′rSt】0ⅠてA
音芸名ニ8こ二要撃崇竜芯油
∩︶ 5
一〇ご≡r三ニ
・∈巴○芸0+5汚Z
むSOロコB+一じ犯Z
憲笠ぎ+5母Z
己⁚丁︼
〇?J空・﹂
いCd二﹂空﹂
占Sひ芝
一〇のZ
一〇U︼⊂⊥r一仁
・E巴○≡0+一〇帝Z
むの0崇︺一び+一〇和Z
⁝⁚5∽芝十6母Z
一〇Z
門OZのN
‖Od・±貸L
ヤOS00芝
一〇母Z
C(川S9rO酬1for 6−1「 Cel‡s grow【1†or8暮1r
Fig.7.1ミffectsofinorganic salts(NaCl,MgSO4NarI2PO4,NaNO3,NH4Cl,NaCl+MgCl望),
glし1COSe and clllorall叩】1enicolon tile release ofiytic enzylme fron− V 37 cells 那・ownin】〕Olyl〕eI)tOne・〉reaSt eXtraCと111e(liし1王11COntaini11g NaCl(0.うmole/l).
C‡㌻;1ytic activity of ctlltt汀e filtI◆ate,W:1ytic ac亡ivityliberate(lfroIl−Ce11s(lしIri咽
\VaSlling,lモ;iytic act汗ity release(lfI・onlCdは(れriれ膚InCubatわ11.
Of trito11Ⅹ・100,tWee】180 and gualュiこIine・HCl. Triton X・iOO\VaS1110St effective foI・
t】le release oflytic e11Zyllle frolllCells of strain V37, However,110 effect of NaCl a〔1〔lition to various chcmicals was observed o11the relcase ofiytic enzyme.
Dis(:uSSil‖n
MALVEAuX and SAN CLT三MEIヾTE(1967)describcd that clution ofioosely bound acid p王10SpllataSe froIT】乱ゆ恒加昭胴乱研削用aS artll二Ction of 軒Ialldiollic strengt王l:Tlle
e17Zyme WaS maXimaly eluted fl−ornlog・Phase ce11s withi.O moIc,バノ′lof KClat pH7.う a11(ltlle alllOu】1t elし1tedillCl−eaSed as a fulてCtio】ュ OrioIlic stl・engtllup tOl.01110le′ノ/1,l汎1t Stationary−Phase ce11s required twice the concelltration ofKCl.rheyinferred that the ellZyllle\VaS aSSOCiate(iwit王1tlle Cells tllrOugIlelectl・OStatic 呈11teraCtio11S・CoL†三S and
GROSS(i967a,Ⅰ9671カobserved t】lat Part Of celトl)0Ⅲ1d exol〕e‡1icillinase of 励〟♪ん〆0ど0どど〟∫
‡肝ピヱJ∫111ayl〕eⅢ)erate(li11Stallta11eOtlSlyl)ylnOrgallic a11io】lS.Maxilllulllliberatio】1WaS achieve(1witlleit王1erI)ilOSP王1ate Oi■arSellate、Polya11ioIIS an(1lo\V CO王1Ceiltrations(0.トM)
Of organic a11io11S Were also ef∫ectivei11releaslng Pellicilli】1aSe.
0】1tlle Ot王Ierlla王1d,王〕ellicilli11aSe Of 励rgg/iJ∫ ∫ヱJ∂g∠∠わ was not eluted rroiⅥ Cellsl)y treati帽Wit】1ll廟ICOIICe11tratjoIIS Of salとs(i)oLLOClく196il〕).
In this stLldy,nOl・emarkabic effcct on thc reicasc oflytic enzyme of strain V37
M;ll ine】うacte王■ia‡)1−0(lucing Lytici三nzy111eS・ⅤⅠ 69
2 4 (う 8(ilr)
0.5 1.00
Lyl事C a(細州y
O.5 1.0
TritorlX−100
1 ̄w〔〉O1180
Deoxy()旨10‡ic aci(】
GしIa11idけ1¢一HCI
T「yp8日
EDTA−2Na Lysozymo
Ci!rat¢−3Na NaCけT「】tO‡1X−100 NaCH一丁wee!180 NaC什DeoxydlOlic acid
NaCけGua11id‡ne一日CI NaCけT「ypsirl NaCけE[)TA−2Na
NaC什」ysozy‡Ⅵe NaCl+Citrat¢−3Na
100
0 50 1000 50
%of d¢0「eaSei110融Iden$ily Ce】is grown for6r−r Ce蔓【s g「OW−1化汀∈=1「
Fig.8.Effect of various cllel11icals on t】1e releaseofly【ic ellZynle fl・onlV 37 cells gl■OWnin polyl)el)tOne・yeaSt eXtraCt medium containing NaCl(0.5moIe/l).
C‡?;1ytic activity of cu】仁ure filtrate,W再′tic ac仁ivit)r 川〕erated from ceIIs dul−ing was王−1ng,iモ;1ytic activity released fl・0!11Cells duringⅢCtlbation.
WaS Ol〕SerVed by O.うmole/lofinorganic salts. A further study wot11d be required to exalⅥiIle tlle effect of aniollS(pllOSpllate,arSe11ate,Orga】1ic alliollS etC.)o11tile川〕eratioll
Oflytic enzyme frorn strain V37cells.
The penicilliIlaSe川)eratio11fl■Om ぶ明和血伽蝕=m一だ£ ∫l)y】)hospllate and al・Se】1ate
Showed marked pH−dependencc(CoLES and GIモOSS1967a). Liberation of peniciuinase by BacilluslicheJ‡Ubrnds was also dcpender!t uPOn temPeratt11・e and pH value(LAMPI:N
I967).PoLLOCK(Ⅰ96Il))re夏〕Orted tilat pe王1icillillaSe 川)el・atioIlfronlβ飢諭仏が∴用ム症払 did llOt ta重くe place at O OC and\VaSIlearly completelyi】111i吾〕ited at pH valtleSl)elolV6.0.
Penicillinase 川)erationincreased further with temperatしIreS abovc3うOC,but at45OC this was aiways associated with considerable celldamagc. MALVEAUX and SAN
CLEMENTE(1967)also reported that maximalelution ofloosely bound acid phosphatase fronlSiaPh3}lococcusaurel(S,Pl・eSumal〕1y from the surface ofcclls,OCCuredin the alkaline
PH ralヽge.
SljOAiI llミA,王−IAl,ASlvll,三く【hltプまモA an(iMA7、SUOl(A 70
TIleSe facts s咽geSt tIlatlil〕el・ation111ayIlaVe aIlenZyl¶e‡〕aSis.
C】1loralⅥ王)11e11icol,ataCOIICeIlt陀tio11(40/唱ノ】Ⅵ1)w】1icllinllil〕itedl)e壬1icilli11aSeSy】1‖1eSis,
1)artiallylllllil〕ited erz)りⅥ(!SeCretio!10fβ飢■J∠J〟∫Sl).if adde(ldul轟i‡へg t王1e王)eriod of active SyntlleSis(PoLLOCK1961l),LAⅣlPEN1967,SARGEN′1、ど∠ ‡g.1969).
Release oflytic e】てZy】Ⅵe froiⅥStl■ai】1V37 was observedIllglllyiI=he allくali11e Pii
rangc(Fig.3)and was notinhibitedl)y ChiGramPhcnicolat a concentration of10〃g/ml.
So(liし1111(1eoxycholate(0.05刷l.0%)iilCreaSed peIlicillhase 川)eratioIて frol¶ βαrJ払J∫
Subliiis but rapidlylet to celldamage(tビ・glucos主dasclealく)(PoLLOCK196ib),and at a concelltratioIlOflOlll軌ノ′1111was effect主vei:or ral〕i〔l川〕eration or 王〕e11icilli】1aSe fl■Om Bacillus sublilis(KusrINEIモ and Pou,OClくⅠ961). Al〕Out O.う% ol:so(lium deoxycholate,
1Vき1主cll(lisintegraとed t】1e m訂正那脚e 脚・ePaj▲atiolつ,pl・eVeJ鳥e(li・elease oi free 王〕enicillillaSe of 挽c眈′∫J〜ど/iど7‡ぴb7膚ノ77∫∫(LAⅣlPEN1967). EDT丸 wlliclll)reSunlal)1y relllOVed Mg望i alてd otIlel■Cations fro】¶thelTleIⅥ1)ralleS,\VaS alsoil血ibitory for t主1e】 elease of free l)eniciuinasc of Bacillus sp.(PoLLOCIく1961b,LAMPEN1967)一 Tryl)Sin(img/ ml)rapidly liljerated alarge pl・Ol〕0】■tio王10r pe11ici11illaSe eVeIli11tlle preSellCe Of O,05M Mきざ望
(KusHがE尺鉦1d PoLLOCiく ユ96り.
H()WeVer,deoxycholic acid(0.i%),EDTA・2Na(0.03M)and trypsin(lmg/′ml)did not sllOW relⅥarlくal)ユe effect on tIle release oflytic enzy】Ⅵe from straiIlVう7ceIIs,Wllile
tl・itolュX−100(0.1%)was effective for tlle ellZyme elution(Fig.8).7■11e decreaseiII celldcnsity,thatis ceu damagc,WaS S将nificant Llnder some conditiotlS uSe(1for the release expcriments.工n this study,the measurernent ofα・glしICOSidaselcaまくWaS nOt carried out as 1Ⅵarlくer of celまdalTlage Or CelllysIS. Furtllel■Studies o】1tlle PrOl)1elll
of cellda】1〕age WO山dl〕e 王1eCeSSaryi110r(1er to(1e】ⅥO11Strate tile effect ofillO棺anic salts an(lot王1er Clle111icals on t盲Ie release ofIytic e11ZyIlle frolⅥSt】 ai11V37cells.
RefereIICeS
CoI.1三S,N.Ⅵr.aよ1(!軋GROSS,ユタ67ヱ】.L主beま●zl臼0王10f suI・fニ】Ce−】ocaとed!〕enic汀け耶1Se f】・OJll別項わ血Ⅲ 那
〝Jげだ才(∫.βざ〃C/昭7g.ノり102:742−747.
脚肝 −一皿
an(l・仙川′、一肌,1967!).influence of organk alliollS On thelibel・atioIlOfl)eniciiii王1aSefl・Om
封画布両肌肌肋=裾略路」射む102:748−7う2.
‡くUSIiN】㍑,D.J.a11dⅣL R∴靴l。Ⅰ一0(Ⅷ,1961,T‡1e】ocation ofcell−bol用di)enicillinasei11瓜打汀抽ざ錮油汗砧.
J.β・β札苅グ∫cプr〟ム〆0/.,26:2うう−26う.
LAか11}ユ;N,J.0り1967.1ミelease ofl)enici川】1aSe byβαr才〃〟∫/∫cカピタ‡げ〃〃?〜/ぶ.Jわ摘.,48:26ト268.
MAljVl三AuX,F,].and C.L.SAN CIjt持㌃EmlE,1967.EItltion oflooseiy bound acid L)hosI油atase from 野郎わ血帥m… 刷独㍉初肋.Aイブど7′0わ才の/.,15:738−743.
Pol.!JO(コ‡(,M.1ミ.,1961a.Tlle】11eaStll◆eIⅥenとOf tile‖)eration ofl)eIlicilii11aSe fl■0董11此紆沼椚∴㍑鋸汀転ノ
那孔鳶ノ批●′・〟∂/〟/。26:239−2うぅ.
,1961b.TlleIlleC‡1anis】110flibeI◆ation ofl)enici11inase froIll蝕雨肋持 ㌫血路煩い臥砿 26:
267−276.
…八・山川…血脚 −,1962.Exoe11ズymeS.Tile fうacteまuia(Ⅰ.C.GuNSノl】JUS aIld R.Y.Sl、j測】Ⅲeds.),Aca(まeIllic press,VoLlV,12トユ78.
SAllGEドーr,M.G.∴軋K.G110削1andJ.0.LAMl)EN,1969.C璽Ial・acteユ・istics of 壬)enic川inase sec王・eとio11b〉r
growing cells andl)1・otoI)lasts ofβαr7〟〃S/′rカピ?‡げ0〃Jオブざ.ノ.βαCわ〃イ〃′.,97:820−826.
Mal◆ine Bacteria Pl●OdLICing L)7LicE11ZyllleS−ⅤⅠ
7まan(】J.0.LAさil}】三N,1970.A mechanisI11fo】・Ⅰ:enicilli11aSe SeCl・etioniIl助c′〟〟ぶ/ブどカピー
け/〃J∫.什(リ∴.\王〃..lく■.・∴ノ..V∴65:?ムニー9b?.
SuoA】IAlもJl,ⅠりK.Hメ1yJISl11,T.Ⅰ(川UlもA,M.Mノl−i,Stさ0ⅠくA aIld K.FuJ】・rA,1976.Sl、udies on marinebactel・ia
l〕rOdLICinglytic enzymes−Ⅰ.Lytic activity of cultul・e f=trate.This Bullり3:ト16.
,ハ叫山 肌油,け¶¶W叩叫山仙′仰山
and K∴軋椚一札:博78.Sttl〔lies on marinel)aCteri王1Ⅰ)rO(lしICingiytic
ellZynleS−‡Ⅰ.Co呵〕OSi仁ioI10f ctllturelⅥe(1ium for tllel)rOducむiollOflytic eIIZylⅥeS.Jム紘,5:25−46.
,〝−一皿一仲山…肌…州血仙′,∨山一肌一州
;1n(lN.王1AZU51Ⅰ,l卵9.Stu(lies onlnarinel〕aCteriaJ)l・0〔ltlCing
さrtic enヱyIlleS・iII.】ミffects ofinorganic salts and enzynleinllil)itors on t‡1elytic acぐivit〉′.Jわ紘,
6:49−56.
㌦八八八∧八∧∧八∧W ,血 ,
,Y、StjZUlくⅠ,をi.て10YO】)A aユ1(1A.かfA′l・S【ブ0‡くA,i980.S仁し1(】ies on
111al・ille bacteI■ial)rO(iLICmg】yとic enzyIⅥeS−ⅠⅤ.E持ect ofinorganic salは(mモllel)1・OdしICtion oflytic enzyme.Jわ√〟.,7:9−27.
,′山