Department of Biology, The University of Texas at Arlington, 76019, Arlington, Texas, USA.
Microb Ecol. 1988 Sep;16(2):155-63. doi: 10.1007/BF02018911.
The relationship between bacterial cell volume and temperature was examined for field data collected over a 4-year period and through controlled chemostat incubations of aPseudomonas sp. Volumes of planktonic bacteria were found to decrease as water temperature increased. Changes in temperature accounted for 38% of the variation in average cell volume (P<0.001). Average planktobacterial cell volume fell 42% from 0.217μm(3) in mid-winter to 0.127μm(3) in mid-summer. Similar results were found for the size distribution of epibacterial cells. Controlled chemostat incubations of aPseudomonas sp. indicated that cell volume was significantly affected by temperature, growth rate, and the interaction of temperature and growth rate. The data suggest that a change in cell volume as a result of a change in temperature is an intrinsic property of planktonic bacteria.
研究了 4 年来采集的野外数据和对一株假单胞菌进行的恒化器控制培养实验中细菌细胞体积与温度之间的关系。发现水的温度升高会导致浮游细菌的体积减小。温度变化解释了平均细胞体积变化的 38%（P<0.001）。从冬季中期的 0.217μm(3)到夏季中期的 0.127μm(3)，浮游细菌的平均细胞体积下降了 42%。同样的结果也适用于附生细菌的细胞大小分布。对一株假单胞菌的恒化器控制培养实验表明，细胞体积显著受到温度、生长速率以及温度和生长速率相互作用的影响。这些数据表明，细胞体积因温度变化而发生变化是浮游细菌的固有特性。
