ISSN:
1432-0789
Keywords:
Nitrogen fixation
;
Atriplex spp.
;
Root-associated diazotrops
;
Acetylene reduction assy (ARA)
;
Saline sodic soils
;
Enterobacter agglomerans
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Geosciences
,
Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
Notes:
Summary TwoAtriplex spp. growing in low-fertility saline sodic soils were assayed for root-associated nitrogenase activity. The excised washed and unwashed root of the two species.A. lentiformis andA. amnicola, showed high root-associated nitrogenase activity. Acetylene-reducing activity seemed to be directly influenced by moisture. The highest number of diazotrophs, enumerated using a most probable number technique was observed on the root surface. Most of the isolated diazotrophs were identified asEnterobacter agglomerans. Root-associated nitrogenase activity inAtriplex spp. may explain the high protein and biomass content of these plants growing in low-fertility saline sodic soils.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00634108
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