ISSN:
1573-5036
Keywords:
Chlorosis
;
Cowpea
;
Nodulation
;
Rhizobitoxine
;
Rhizobium
Source:
Springer Online Journal Archives 1860-2000
Topics:
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary While screening cowpea rhizobia from West Africa for ability to nodulate various host species, foliar chlorosis was observed in young mung bean and soybean plants inoculated with certain strains. The chlorosis occurred in the first and sometimes the second trifoliate, but not on subsequent leaves. There was no correlation of symptoms with the presence of nodules. Where extreme chlorosis was induced in soybeans, there was stunting of the primary root. Disease symptoms were obtained with culture-broth supernatants free of rhizobia, indicating an extracellular toxin. In common with rhizobitoxine-producing strains ofR. japonicum, chlorosis-inducing cowpea strains were able to nodulate ‘non-nodulating’ soybeans of the rj1rj1 genotype.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02375064
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