5traptonyrln effeota od chlorophyll in higher plrinta. Nrrnay Zlebur, 1949-1950 r PrtivRaoll, Hutner and Sahate (Proo. Bee. Exp, Blol. & Med. 1948, 69:219-282) showed that o ertiiin ratrnins of &Elena in the protaenee of streptomyoln (SVM) undergo IZ permanent yg+ chlorophyll but all1 aontlnue to groa well if H. proper energy aourcze la supplied. Their paper KLEO refer6 to $everfA of von Euler and Brcraao who rnported that asoda germlruated in ST% aolutlona developed Into o hloronhyll. daflslent rileedllnge - no report beyond the seedling s tar?e 6 A, Methods. 1. Btreptomysln used in two forma: Dlhydroatreptomyaln, 1.2 go of whlrh 1s equlvfilcnt to 1 go STId base. The reaetlone to the two forms were lndlstlngulsht~hla. The doses given will be referred to in terrao of STM base, 2. Seed treatmenta IJr?sd AgHr plates with .S$ rtgaro STM dlaRolved In sterile water and f~flded to the sterile n~irm itgiir, No 8olltFi?l~ nation with thla meWoda 3* Bud trentmentn Agar caf~ps raade In the following fashion: Take about 15 IWR. of a Jumb(b drinking atraw (6 EWE* dlam.), @over one end with {L fmmx aquars of Alulalnum foil, wind A 5mn. wide strip of aeotah tnpa around tightly brlnglng the, two ctieky sideS to- gether where the ends meet. Thla gives R tab, R slit in whlsh lo ureful to hold H thitead from allpplnp; up or down In *Rae It is neueas&ry to tie the str&w to the plant, A gal of .?$ nnd 1% 8TM la used, with .3 ml. In e;Lrh Htrtsw. Ltinolln suspensions were triad but didn't rork well.. 4* Xn,Jecptlona were mW%? with non-sterllj!e golutlons of vcirylng strenflhs, Be Experiments. 1, RRdiahel - 36arlet Globe be Seed treatments. Seeds aterllis/ed with HgCl 2:lOOO and deturgent (together), rlneed, soaked overnight en sterile water, reaterilised, Pleaed on agar plates, Aftor two dnys transfened to test tubes with .?$ figar, 2% mmroae, and Randolph and Cox mlnelr&la. Bone seedlings entirely white, Borne pfirtly green, Growth poorer than rontrolla and exprame&y vnrlr:ble. Even If aer~~7.1 parta of the treated seedlings remcain grean, they do not Qurvlve In raoil, On su ttr medium seedZIngs never grew more thnn about 6 inches 7 however, csont-olrr, also Aid poorly In sterile &Ltureo Attempts at quirntitritlve eom- p~ri~ons of modish growth were AbAndoned bea:.use oi the v~lr- l*~blllty of the rar%terlrtla b, J3u(L trei%tnent Inflo#reeaenaes or gro\-Ang tips were trented by aquaacing them into RgFrr filled IttrHws, hrtving removed aa mriny buda or le~vas NB neeessriry to get R good fit. Not nt?aessRry to tie strano on. Qtrr:wg left on about 5 days or untll afrfar hrtd dried. The lertves nnd stems Inside were InvnrWbly blpaehed when they exprinded, with some green remnlning IZ the lg~ves weye quite large when treirted, The effesats could ~180 be oeen on le~veo farBEer down on the stem, white lmvsa wrere often Htlff, and r~lw~ys grew more rsloalg then green onea. Affected atena were redder thr+n norqrrl. men the rzpio~l grow- lng point wna treatc?d, green aide Rhoota farther down began mp.ld growth and aosounted for aost of the further growth of the plant, Flowerer arlslng from treated buds freq!jentlg nborted beTore openlng. Borne opened into flopera snnller n~cl ntnker th;Ln noran?-, Others qpeared norm& Pollen from the ?:xat two types nrls ap!?lled to normiLl etlgmam and about SO$ set aeed. Individu~il flower bags wepl`e used. No rerrl aontrol for fer- tillty comp~rlsone wpi8 used, but potlen from one lnflo#res- sense tbt ww only very slightly pale effected lOO$ fertlll- cstione It seems likely that pol'len fertlllt;P la aotunlly reilucleii by severe 3W treatment. Treated flowers were lrapssc pollinated with normril poll6n, but of 25-50 flowers only 2 showed the beggwlngs of fruit development. One of theee aborted, and the other produced two ahrlveled seeds, Female taterlllty le unqueatlon&bly present. Horaar\l g x ST@ a7 and csomprirable normal x normihl seed@ nere plentlftul and should be groe;n out. 2, Peas - Alaska - Bud treatment Slmllnr to th,it for raillshes except thttt the tetmws hr;.d to be tied on, Several afferted :Jods started growth, preeuntibly self- pollinrited, but txborted after ranrshlng A m~xlraum slz e of about 3/4 lnoh long. Pollen output of affelted flowers sserued 7oFe re- duaect thtin In the @?:ae of rndlslihes; the few attam@bs to use It for fe~tlllzlng normi. flowers were uneureeeerful. 3. Tomntoes - Bonny Best H. Bud. trerktment. Grovlng points were killed bv AS short A tretitment ff.9 1 day with 1 $ S'i%id. MO chlorophyll abnormalltie8 frppellred, altho the plant8 grel' sowenhtrt pu~ll$h.tuu~ pb')H b. Injeetlon. 1% or .lfi 3TM lao'-utlons were lnJs@Yed in%0 enA8 of o\rt-off aI& brrrncks, No posltlwe ,effaet wcL8 showy?. 4. Corn a. Inje~tlone. Sepc!llnge in $ol18Rbout 3-4 fnlshas high 1nJeateA from the top wlth a ra&ttlon eontdilnlngalfl STM and .O$$ deturger.t, %eedllnga k~aa~ beanrae bleaahed,and died in &out 3 week& Controls ln- jaated with deturgent only vere ok, b. Seed treatments, 3ame method@ as for mdished, :ifter 8 deys on STM agar et111 no effect, o. Embryo treatments. Seeda eterlliesd, asked 2 daya embryoa exrlsed and reloterll- leed, then pltreed on STka tqg*tr &tes. Efiecrt ele~r after 5 dR$a and seedlings uould be tr~~ns#!bsaed to test tambaa as with rctdlehee, QuAntltatfve testa in light Rnd dark were also run to Mxrmlne whtsther she sfieeted plants aan utilize mtrosee