It has been quite generally accepted for a long time that the root nodule bacteria from soybeans would not produce nodules on cowpeas, and that the bacteria from cowpea nodules would not produce nodules on soybeans. This conception has been supported by numerous cross-inoculation tests and field experiments, and as a result the organisms have been placed in different cross-inoculation groups and even into different species. 19. Comparative dissimilation-The dissimilative action of Escherichia coli, Citrobacter anindolicum and various organisms of the intermediate groups on xylose and on dextrose was studied under comparable conditions with the aim of postulating a mechanism of the breakdown of the xylose molecule.
Proceedings of the Iowa Academy of Science
©1932 Iowa Academy of Science, Inc.
Anderson, D. A. and Walker, R. H.
"Cross Inoculation Between the Root Nodule Bacteria of Soybeans and Cowpeas,"
Proceedings of the Iowa Academy of Science, 39(1), 133-134.
Available at: https://scholarworks.uni.edu/pias/vol39/iss1/18