Titlebook: Azospirillum III; Genetics · Physiolog Walter Klingmüller Conference proceedings 1985 Springer-Verlag Berlin Heidelberg 1985 air.ecology.ge

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https://doi.org/10.1007/978-3-663-04866-4te, histidine or proline nitrogen fixation in A. brasilense strains was only slightly reduced, whereas in .. . and .. . strains these amino acids almost completely abolished nitrogen fixation. Differences in the levels of ammonium assimilatory enzymes were found. After the addition of ammonium chlor

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https://doi.org/10.1007/978-3-663-04867-1ron acceptors. Molar growth yield measurements now indicate that . obtains the same amount of energy with NO. and O. as respiratory electron acceptors but only 1/3 of that with NO.. Dissimilatory nitrite reductase catalyzing the reduction of NO. to N.O is shown to be a cytochrome c, d containing enz

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,Versuchsanordnung und -durchführung,cribed. The test was also used to determine nitrogenase activity occurring inside and on the surface of the roots, and to count bacteria on the root. Moreover the test we describe could be useful also as a model for the study of the bacterization process.

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,Elektromagnetische H?rteprüfverfahren,ntlets and their acetylene reduction activities compared. The most active was strain 4B of .. In a similar manner, this strain was associated with a collection of rice mutants of cv Césariot. The most active mutant was n. 17. Three field experiments were performed associating strain 4B with Césariot

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https://doi.org/10.1007/978-3-7091-3222-7ed from a mixture of 3 potent strains was used to inoculate seeds of 2 wheat cultivars. A field trial was executed to compare biofertilization with azospirilla against N-fertilization. Significant responses to inoculation in the presence of a limited supply of N was obtained particularly for cv. Wes

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Construction of a Gene Bank of Azospirillum Brasilense,ed by conjugation from . to . by using the helper plasmid pRK2013 at a frequency of about 10.per recipient cell. Clones carrying . and . genes have been identified by genetic complementation; the expression of . in . has been demonstrated. Keywords: gene bank, cloning, conjugation.

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Cosmid Cloning of Nitrogenase Structural Genes of Azospirillum Lipoferum, These genes were found to be clustered and organized in the same order as in .. (.HDK). After introduction into the respective .. ... mutants the cloned ...HDK (Ali .HDK) restored nitrogenase activity up to approximately 2% of wildtype.