Titlebook: Highlights of Nitrogen Fixation Research; Esperanza Mart?nez,Georgina Hernández Book 1999 Springer Science+Business Media New York 1999 Al

Minutes

Phagocytes

Alanine and Ammonia Release by N,-Fixing , Bacteroids,t ammonia. If plant nodule cytosol was added to sucrose density gradient purified bacteroids, alanine was no longer excreted but ammonia was found instead. This indicates that alanine, and not ammonia, is the primary nitrogen carrier out of the soybean bacteroid.

congenial

, Lon Protease Plays an Essential Role in the Alfalfa Symbiosis,dules fixed little nitrogen and contained few bacteroids relative to the wild type strain, indicating some aspect of infection is negatively affected in this mutant. A cosmid subclone containing the wild-type . allele restored normal symbiotic function.

hyperuricemia

Book 1999 students to discuss their research advances, extending from basic aspects to agricultural appli- cations, and dealing with topics ranging from bacterial genetics and metabolism to plant genetics and physiology. Nitrogen fixation, being a major life-supporting process on this planet, has attracted t

禁止,切斷

Isolation and Characterization of a DNA Fragment Containing Genes for Mimosine Degradation from , Ss in the seeds, foliage and roots of . spp. It has general antimitotic activity that inhibits the growth of certain microorganisms but it also enhances the growth of others that can utilize it as a putriept source Some . strains isolated from the podules of . trees.

CAND

Colonnade

idiopathic

Modulation of Key Symbiotic Metabolic Pathways Through Reverse Genetics of Transgenic Legumes,therefore to vary quantitatively the flux control of the process. One can obtain engineered transgenic plants that overexpress a certain gene or that partially inhibit specific gene expression (through antisense post-transcriptional inhibition). We have followed this experimental approach to modulat

有斑點(diǎn)

Constitutive and Nodule-Specific Overexpression of Cytosolic Glutamine Synthetase ,GS,) Genes in Alving either a soybean GS., or an alfalfa GS., gene have been introduced into alfalfa. Northern analysis of RNA isolated from leaves and nodules of nodulated N.-fixing plants showed significant accumulation of the transcript for the GS., transgene only in the leaves but not in the nodules. However, s

猜忌

Cloning and Developmental Expression of a Nodule-Enhanced Sucrose Synthase cDNA from Alfalfa,e in root nodules, sucrose must be cleaved to glucose and other smaller carbon compounds. Here we report the isolation and characterization of a full length cDNA encoding the enzyme sucrose synthase (SS; EC 2.4.1.13). This SS cDNA shows greatest expression in effective nitrogen-fixing nodules. It is