Seed and leaf inoculation with Azospirillum brasilense and increasing nitrogen in wheat production
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چکیده
منابع مشابه
Anchoring of Azospirillum brasilense to hydrophobic polystyrene and wheat roots
The anchoring (irreversible attachment) of Azospirillium brasilense Cd to hydrophobic polystyrene and to root surfaces was compared. Live A. brasilense Cd cells attached in significantly greater numbers to roots than to polystyrene, regardless of treatments made to the surfaces or to the bacterial cells. Triton X-100, Na2EDTA and several bacterial -inhibitory substances reduced bacterial attach...
متن کاملNH(4)-Excreting Azospirillum brasilense Mutants Enhance the Nitrogen Supply of a Wheat Host.
Spontaneous ethylenediamine-resistant mutants of Azospirillum brasilense were selected on the basis of their excretion of NH(4). Two mutants exhibited no repression of their nitrogenase enzyme systems in the presence of high (20 mM) concentrations of NH(4). The nitrogenase activities of these mutants on nitrogen-free minimal medium were two to three times higher than the nitrogenase activity of...
متن کامل(Methyl)ammonium transport in the nitrogen-fixing bacterium Azospirillum brasilense.
An ammonium transporter of Azospirillum brasilense was characterized. In contrast to most previously reported putative prokaryotic NH4+ transporter genes, A. brasilense amtB is not part of an operon with glnB or glnZ which, in A. brasilense, encode nitrogen regulatory proteins PII and PZ, respectively. Sequence analysis predicts the presence of 12 transmembrane domains in the deduced AmtB prote...
متن کاملEffect of seed inoculation with Azotobacter and Azospirillum and different nitrogen levels on yield and yield components of canola (Brassica napus L.) , Mahboobeh Naderifar1*, Jahanfar Daneshian2
In order to investigate the effect of different levels of nitrogen and bio-fertilizers on yield of canola plants in Qazvin, Iran, a split-plot design was conducted on the base of randomized complete block design with four replications. Treatments included 3 levels of nitrogen (0, 75 and 150 kg ha-1) and bio-fertilizers on four levels (no inoculation, Azotobacter, Azospirillum and a combination ...
متن کاملResponses of Soybean and Cowpea Root Membranes to Inoculation with Azospirillum brasilense
Inoculation with Azospirillum brasilense Cd of two leguminous species, soybean (Glycine max) and cowpea (Vigna unguiculata), demonstrated that: (1) A. brasilense significantly increased proton efflux from their roots; (2) inoculation reduced plant membrane potential (in soybean), (3) inoculation changed the phospholipid quantity in plant membranes of calli (in cowpea), and (4) a low molecular w...
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ژورنال
عنوان ژورنال: Revista Brasileira de Ciências Agrárias - Brazilian Journal of Agricultural Sciences
سال: 2018
ISSN: 1981-0997
DOI: 10.5039/agraria.v13i3a5550