The use of transposon-induced non-motile mutants in assessing the significance of motility of Rhizobium leguminosarum biovar Trifolii for movement in soils
Catlow, H.Y., Glenn, A.R. and Dilworth, M.J. (1990) The use of transposon-induced non-motile mutants in assessing the significance of motility of Rhizobium leguminosarum biovar Trifolii for movement in soils. Soil Biology and Biochemistry, 22 (3). pp. 331-336.
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A Tn5+-containing motile strain of Rhizobium trifolii TA I was able to move vertically, or horizontally, through steam-treated yellow sand at field capacity in the presence or absence of clover roots. Under the same conditions, the spread of a Tn5-induced non-motile mutant was markedly reduced. When similar experiments were carried out in untreated soil. no significant difference in movement was seen between the motile and non-motile strains. Active flagellar motility appears not to be a significant factor in the distribution of rhizobia in the soil used in these experiments. Experiments in steam-treated soils may well lead to incorrect conclusions about motilily in relation to dispersal of rhizobia.
|Publication Type:||Journal Article|
|Murdoch Affiliation:||Centre for Rhizobium Studies
School of Biological and Environmental Sciences
|Copyright:||© 1990 Published by Elsevier Ltd.|
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