. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 16 IOHN TYLER BONNER AND MARYA R. DODD tions of E. coll on streptomycin agar. As can be seen from Figure 1, the size of the sorocarps increases with the increase in bacteria. The range indicated here only shows the lower limit of the species tested, but fails to show the upper limit. Note that for the three species shown in Figure 1, each has a different minimum threshold. Some studies were also made of D. ininutum which, as just mentioned, has a low maximum threshold (, does not develop with a rich food supply, prob- ab
. The Biological bulletin. Biology; Zoology; Biology; Marine Biology. 16 IOHN TYLER BONNER AND MARYA R. DODD tions of E. coll on streptomycin agar. As can be seen from Figure 1, the size of the sorocarps increases with the increase in bacteria. The range indicated here only shows the lower limit of the species tested, but fails to show the upper limit. Note that for the three species shown in Figure 1, each has a different minimum threshold. Some studies were also made of D. ininutum which, as just mentioned, has a low maximum threshold (, does not develop with a rich food supply, prob- ably because excessive bacterial growth produces inhibitory substances). It was a surprise to discover that it had a high minimum threshold necessary for aggrega- tion. In other words it is a form which can only develop in a very restricted range of food densities. Other forms, such as D. purpurcum, are much less particular and I0u. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Marine Biological Laboratory (Woods Hole, Mass. ); Marine Biological Laboratory (Woods Hole, Mass. ). Annual report 1907/08-1952; Lillie, Frank Rattray, 1870-1947; Moore, Carl Richard, 1892-; Redfield, Alfred Clarence, 1890-1983. Woods Hole, Mass. : Marine Biological Laboratory
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Keywords: ., bookauthorlilliefrankrat, booksubjectbiology, booksubjectzoology
