aminolevulinic acid/sojaböna

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Expression of the soybean (Glycine max) glutamate 1-semialdehyde aminotransferase gene in symbiotic root nodules.

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Extracts of soybean (Glycine max) root nodules and greening etiolated leaves catalyzed radiolabeled delta-aminolevulinic acid (ALA) formation from 3,4-[3H]glutamate but not from 1-[14C]glutamate. Nevertheless, those tissue extracts expressed the activity of glutamate 1-semialdehyde (GSA)

Plant delta-aminolevulinic acid dehydratase. Expression in soybean root nodules and evidence for a bacterial lineage of the Alad gene.

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We isolated a soybean (Glycine max) cDNA encoding the heme and chlorophyll synthesis enzyme delta-aminolevulinic acid (ALA) dehydratase by functional complementation of an Escherichia coli hemB mutant, and we designated the gene Alad. ALA dehydratase was strongly expressed in nodules but not in

Characterization of delta-Aminolevulinic Acid Formation in Soybean Root Nodules.

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Formation of the heme precursor delta-aminolevulinic acid (ALA) was studied in soybean root nodules elicited by Bradyrhizobium japonicum. Glutamate-dependent ALA formation activity by soybean (Glycine max) in nodules was maximal at pH 6.5 to 7.0 and at 55 to 60 degrees C. A low level of the plant

The role of 5-aminolevulinic acid in the response to cold stress in soybean plants.

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In this study, the possibility of enhancing cold stress tolerance of soybean plants (Glycine max L.) by exogenous application of 5-aminolevulinic acid (ALA) was investigated. ALA was added to the Hoagland solution at various concentrations ranging from 0 to 40 μM for 12 h. After ALA treatment, the

Heme Synthesis in Soybean Root Nodules: I. On the Role of Bacteroid delta-Aminolevulinic Acid Synthase and delta-Aminolevulinic Acid Dehydrase in the Synthesis of the Heme of Leghemoglobin.

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During nodulation of soybean (Glycine max) by Rhizobium japonicum, variations in the activities of two enzymes of heme biosynthesis, delta-aminolevulinic acid synthase (ALAS) and delta-aminolevulinic acid dehydrase (ALAD) are described. delta-Aminolevulinic acid synthase activity is found in the

Isolation and characterization of a cDNA from soybean and its homolog from Escherichia coli, which both complement the light sensitivity of Escherichia coli hemH mutant strain VS101.

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Using Escherichia coli strain VS101, whose hemH gene encoding the ferrochelatase is partially defective, we isolated and analyzed a clone (designated XWH-1) from a X phage library of soybean (Glycine max) cDNA, which exhibited weak complementation activity against the light sensitivity of VS101. In

Expression of a soybean gene encoding the tetrapyrrole-synthesis enzyme glutamyl-tRNA reductase in symbiotic root nodules.

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Heme and chlorophyll accumulate to high levels in legume root nodules and in photosynthetic tissues, respectively, and they are both derived from the universal tetrapyrrole precursor delta-aminolevulinic acid (ALA). The first committed step in ALA and tetrapyrrole synthesis is catalyzed by

Bisphenol A effects on the chlorophyll contents in soybean at different growth stages.

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Bisphenol A (BPA), a suspected endocrine disruptor, can modify normal plant growth and development. Photosynthesis provides material and energy for the growth and development of plants, in which chlorophyll (Chl) plays a significant role. Many studies have shown that the growth and metabolism of

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