Measurement of in Situ Activities of Nonphotosynthetic Microorganisms in Aquatic and Terrestrial Habitats

INTRODUCTION ... .. .... .. ..... .. .. .. 321 AUTECOLOGy. .. ......... .. ....... 322 Techniques Used in Assessment of Autecological Activity .. .. .. 323 Applications of Techniques Used in Assessment of Autecological Activity ... .. .. 324 SyNECOLOGy.. ....... .... 329 Problems in Interpreting the Measurement . 329 Radioisotopic Methods .... .. .. 332 Measurement of Cell Division ... ........ ........ ... .. ...... ........ ....... 341 Comparisons Between Methods.. .... .... .... ... 343