caa a22 4500 465790593 CHVBK 20180323112023.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF02543868 doi (NATIONALLICENCE)springer-10.1007/BF02543868 Changes of traits in a bacterial population associated with protozoal predation [Elektronische Daten] [Shuichi Shikano, Leo Luckinbill, Yasushi Kurihara] In an attempt to understand the significance of predation in the evolution of prey species, the ecological and morphological characteristics of bacterial species under predation by a ciliated protozoa,Cyclidium sp., were investigated. Serial transfer at 7 day intervals was applied to the bacterial populations in the presence or absence ofCyclidium. Although cells of the parental bacterial strain are typically short rods up to 1.5 μm long, cells of much greater length, up to 20 μm long (type L) were found in populations exposed to predation fromCyclidium. However, the wildtype, shorter length bacteria persisted even after the appearance of type L. Type L was not observed in the singl bacterial culture throughout the serial transfers. Type L appeared to improve the ability to escape predation by elongating cell size, but growth rate and saturation density were decreased. Springer-Verlag New York Inc., 1989 Shikano Shuichi Biological Institute, Faculty of Science, Tohoku University, 980, Sendai, Japan aut Luckinbill Leo Department of Biological Sciences, Wayne State University, 84202, Detroit, Michigan, USA aut Kurihara Yasushi Biological Institute, Faculty of Science, Tohoku University, 980, Sendai, Japan aut Microbial Ecology Springer-Verlag 20/1(1990-12-01), 75-84 0095-3628 20:1<75 1990 20 248 https://doi.org/10.1007/BF02543868 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02543868 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Shikano Shuichi Biological Institute, Faculty of Science, Tohoku University, 980, Sendai, Japan aut NATIONALLICENCE 700 1- Luckinbill Leo Department of Biological Sciences, Wayne State University, 84202, Detroit, Michigan, USA aut NATIONALLICENCE 700 1- Kurihara Yasushi Biological Institute, Faculty of Science, Tohoku University, 980, Sendai, Japan aut NATIONALLICENCE 773 0- Microbial Ecology Springer-Verlag 20/1(1990-12-01), 75-84 0095-3628 20:1<75 1990 20 248 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer