Knowledge Center Catalog

Influence of amino acids on nitrogen fixation ability and growth of Azospirillum spp (Record no. 18753)

MARC details
000 -LEADER
fixed length control field 02900nab a22003497a 4500
001 - CONTROL NUMBER
control field G65303
003 - CONTROL NUMBER IDENTIFIER
control field MX-TxCIM
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20170719110407.0
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
fixed length control field 121211b |||p||p||||||| |z||| |
022 0# - INTERNATIONAL STANDARD SERIAL NUMBER
International Standard Serial Number 0099-2240
040 ## - CATALOGING SOURCE
Original cataloging agency MX-TxCIM
082 04 - DEWEY DECIMAL CLASSIFICATION NUMBER
Classification number 89-079421
100 1# - MAIN ENTRY--PERSONAL NAME
Personal name Hartmann, A.
245 00 - TITLE STATEMENT
Title Influence of amino acids on nitrogen fixation ability and growth of Azospirillum spp
260 ## - PUBLICATION, DISTRIBUTION, ETC. (IMPRINT)
Date of publication, distribution, etc. 1988
340 ## - PHYSICAL MEDIUM
Material base and configuration Printed
500 ## - GENERAL NOTE
General note ref
520 ## - SUMMARY, ETC.
Summary, etc. The utilization of amino acids for growth and their effects on nitrogen fixation differ greatly among the several strains of each species of Azospirillum spp. that were examined. A. brasiliense grew poorly or not at all on glutamate, aspartate, serine, or histidine as the sole nitrogen and carbon sources. Nitrogen fixation by most A. brasiliense strains was inhibited only slightly even by 10 mM concentrations of these amino acids. However, A. lipoferum and A. amazonense grew very well on glutamate, aspartate, serine, or histidine as the sole nitrogen and carbon sources; nitrogen fixation (measured in presence of malate or sucrose) was severely inhibited by these amino acids. It was concluded that growth on histidine as the sole source of nitrogen, carbon, and energy may be used for the taxonomic characterization of Azospirillum spp. and for the selective isolation of A. lipoferum. The different utilization of various amino acids by Azospirillum spp. may be important for their establishment in the rhi zosphere and for their associative nitrogen fixation with plants. The physiological basis for the different utilization of glutamate by Azospirillum spp. was investigated further. A. brasiliense and A. lipoferum exhibited a high affinity for glutamate uptake (Km values for uptake were 8 and 40 micron resp.); the Vmax was 6 x higher in A. lipoferum than in A. brasiliense. At high substrate concentrations (10 mM), the nonsaturable compt of glutamate uptake was most active in A. lipoferum and A. amazonense. The glutamate dehydrogenase activity of A. lipoferum was 7 x higher and the glutamate oxalacetate transaminase activities were 3 to 5 x higher in A. lipoferum and A. amazonese than in A. brasiliense. Glutamate-grown A. brasiliense had high glutamine synthetase and ammonium uptake activities, whereas these activities were low in glutamate-grown A. lipoferum. Thus, Azospirillum spp. differ quantitatively and qualitatively in their amino acid metabolism
546 ## - LANGUAGE NOTE
Language note English
595 ## - COLLECTION
Collection AGRIS Collection
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Bacteria
9 (RLIN) 1017
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Human nutrition
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Organic compounds
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Organic nitrogen compounds
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Physiological functions
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Soil biology
650 10 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name as entry element Spirillaceae
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Burris, R.H.,
Relator term coaut.
700 1# - ADDED ENTRY--PERSONAL NAME
Personal name Fu, H.,
Relator term coaut.
773 0# - HOST ITEM ENTRY
Title Applied and Environmental microbiology (USA). (Jan 1988). v. 54(1) p. 87-93
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Koha item type Article
Holdings
Date last seen Total Checkouts Full call number Price effective from Koha item type Lost status Damaged status Not for loan Collection code Withdrawn status Home library Current library Date acquired
07/19/2017   89-079421 07/19/2017 Article Not Lost     AGRIS Collection   CIMMYT Knowledge Center: John Woolston Library CIMMYT Knowledge Center: John Woolston Library 07/19/2017

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