نتایج جستجو برای: trnd atpb
تعداد نتایج: 257 فیلتر نتایج به سال:
Two point mutants of Chlamydomonas reinhardtii, previously found by recombination and complementation analysis to map in the chloroplast atpB gene encoding the /? subunit of the CFl/CFo ATP synthase, are here shown to be missense alterations near the 5’ end of that gene. One mutant (ac-u-c-2-9) has a change at amino acid position 47 of the /? subunit from leucine (CTA) to arginine (CGA). In the...
Multiple elements required for translation of plastid atpB mRNA lacking the Shine-Dalgarno sequence.
The mechanism of translational initiation differs between prokaryotes and eukaryotes. Prokaryotic mRNAs generally contain within their 5'-untranslated region (5'-UTR) a Shine-Dalgarno (SD) sequence that serves as a ribosome-binding site. Chloroplasts possess prokaryotic-like translation machinery, and many chloroplast mRNAs have an SD-like sequence, but its position is variable. Tobacco chlorop...
Chloroplast ATP synthase (cpATPase) is an importance thylakoid membrane-associated photosynthetic complex involved in the light-dependent reactions of photosynthesis. In this study, we isolated and characterized a rice (Oryza sativa) mutant yellow leaf 1 (yl1), which exhibits chlorotic leaves throughout developmental stages. The YL1 mutation showed reduced chlorophyll contents, abnormal chlorop...
Indo-China floristic region is among the 34 richest floristic regions of the world, and its plant diversity is still under investigation. Here we report a new record of an aquatic plant, Potamogetondistinctus, from Myanmar, a part of the region, that is detected by means of DNA barcoding method. The molecular method further identified the other specimens as hybrids of Potamogeton: one is Potamo...
The plastid ribosomal RNA (rrn) operon promoter was fused with DNA segments encoding the leader sequence (5'-untranslated region [UTR]) of plastid mRNAs to compare their efficiency in mediating translation of a bacterial protein neomycin phosphotransferase (NPTII) in tobacco (Nicotiana tabacum) chloroplasts. In young leaves, NPTII accumulated at 0.26% and 0.8% of the total soluble leaf protein ...
Chloroplast transformation in wheat was achieved by bombardment of scutella from immature embryos and immature inflorescences, respectively. A wheat chloroplast site-specific expression vector, pBAGNRK, was constructed by placing an expression cassette containing neomycin phosphotransferase II (nptII) and green fluorescent protein (gfp) as selection and reporter genes, respectively, in the inte...
The aim was to determine whether gum Arabic (GA) supplementation prevents cognitive decline in type 2 diabetes, through stimulation of mitochondrial function the hippocampus. Type diabetic rats and controls were assigned following groups for 16 weeks: Control + Water; GA 10% w/v; Diabetes w/v. Latency water maze shorter compared Water (P < 0.05). group had a higher expression density per cell p...
Fragile X-associated tremor/ataxia syndrome (FXTAS) is a late-onset neurodegenerative disorder that affects individuals who are carriers of small CGG premutation expansions in the fragile X mental retardation 1 (FMR1) gene. Mitochondrial dysfunction was observed as an incipient pathological process occurring in individuals who do not display overt features of FXTAS (1). Fibroblasts from premuta...
We used ndhF sequence variation to reconstruct relationships across 282 taxa representing 78 monocot families and all 12 orders. The resulting tree is highly resolved and places commelinids sister to Asparagales, with both sister to Liliales–Pandanales in the strict consensus; Pandanales are sister to Dioscoreales in the bootstrap majority-rule tree, just above Petrosaviales. Acorales are siste...
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