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chlorophyll/табак
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Страница 1 от 398 полученные результаты
A visible marker for antisense mRNA expression in plants: inhibition of chlorophyll synthesis with a glutamate-1-semialdehyde aminotransferase antisense gene.
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Glutamate 1-semialdehyde aminotransferase [(S)-4-amino-5-oxopentanoate 4,5-aminomutase, EC 5.4.3.8] catalyzes the last step in the conversion of glutamate to delta-aminolevulinate of which eight molecules are needed to synthesize a chlorophyll molecule. Two full-length cDNA clones that probably
Phytochrome Effects on the Relationship between Chlorophyll and Steady-State Levels of Thylakoid Polypeptides in Light-Grown Tobacco.
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The effects of phytochrome status on chlorophyll content and on steady-state levels of thylakoid proteins were investigated in green leaves of Nicotiana tabacum L. plants grown under white light. Far-red light given either as a pulse at the end of each photoperiod, or as a supplement to white light
SGRL can regulate chlorophyll metabolism and contributes to normal plant growth and development in Pisum sativum L.
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Among a set of genes in pea (Pisum sativum L.) that were induced under drought-stress growth conditions, one encoded a protein with significant similarity to a regulator of chlorophyll catabolism, SGR. This gene, SGRL, is distinct from SGR in genomic location, encoded carboxy-terminal motif, and
Diurnal and Circadian Rhythms in the Accumulation and Synthesis of mRNA for the Light-Harvesting Chlorophyll a/b-Binding Protein in Tobacco.
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The steady state level of mRNA for the light-harvesting chlorophyll a/b binding protein (LHCP) varies considerably during a day-night light cycle in expanding leaves of tobacco (Nicotiana tabacum, cv Wisconsin 38). The maximum (day) level is at least one hundred-fold higher than the minimum (night)
Organization and transcription of the gene family encoding chlorophyll a/b-binding proteins in Nicotiana sylvestris.
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Nine Lhcb1 genes encoding the light-harvesting chlorophyll a/b-binding proteins of photosystem II were isolated and characterized from Nicotiana sylvestris. Their nucleotide sequences are highly similar. Lhcb1 transcripts are accumulated in leaves and stems but not in roots and non-green cultured
Further investigations on structural and catalytic properties of O2 evolving preparations from tobacco and two chlorophyll deficient tobacco mutants.
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Previous investigations (Specht, S., Pistorius, E.K. and Schmid, G.H.: Photosynthesis Res. 13, 47-56, 1987) of Photosystem II membranes from tobacco (Nicotiana tabacum L. cv. John William's Broadleaf) which contain normally stacked thylakoid membranes and from two chlorophyll deficient tobacco
Alterations in chlorophyll a/b binding proteins in Solanaceae cybrids.
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In this study we have constructed a number of plants (cybrids), in which the nuclear genome of Nicotiana plumbaginifolia is combined with the plastome of Atropa belladonna, or the nuclear genome of N. tabacum with plastomes of Lycium barbarum, Scopolia carniolica, Physochlaine officinalis or Nolana
NTZIP antisense plants show reduced chlorophyll levels.
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We have isolated and characterized a new photosynthetic tissue-specific gene NTZIP (Nicotiana tabacum leucine zipper) from tobacco (N. tabacum). Its deduced amino acid sequence has two highly conserved regions, leucine zipper and [EX(n)DEXRH](2) motifs, which are related to the gene's biochemical
Distribution of chlorophyll-bearing organelles in the shoot apex of a range of dicotyledonous plants.
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Confocal laser scanning microscopy was used to study the distribution of the smallest detectable autofluorescing, chlorophyll-bearing structures in fresh, 40 microm thick longitudinal sections of the shoot apex of four dicotyledonous plants (Arabidopsis thaliana, Nicotiana glauca, Lupinus alba, and
Chlorophyll fluorescence assay for kanamycin resistance screening in transgenic plants.
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The applicability of a chlorophyll fluorescence assay for kanamycin (Km) resistance screening in transgenic tobacco (Nicotiana tabacum) and Arabidopsis thaliana plants was investigated. In wild-type leaves incubated in the presence of 200 mg/l Km, a decrease in maximum variable fluorescence ((Fv)m)
Hybridisation experiments with protoplasts from chlorophyll-deficient mutants of some Solanaceous species.
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Following fusion between protoplasts from two different chlorophyll-deficient diploid mutants of Datura innoxia Mill. it was possible to select 33 green hybrid calli on agar culture medium. Half of the somatic hybrids gave rise to leaves and some to shoots. The chromosome number of 20 somatic
Chlorophyll breakdown in tobacco: on the structure of two nonfluorescent chlorophyll catabolites.
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In extracts of senescent leaves of the tobacco plant Nicotiana rustica, two colorless compounds with UV/VIS characteristics of nonfluorescent chlorophyll catabolites (NCCs) were detected and tentatively identified as Nr-NCCs. These two polar NCCs were found in similar amounts in the fresh extracts,
Treatment of the thylakoid membrane with surfactants : assessment of effectiveness using the chlorophyll a absorption spectrum.
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Treatment of higher plant (Nicotiana tabacum L. var. Samsun) chloroplast thylakoid membranes with surfactants results in a shift of the chlorophyll a absorption maximum in the red spectral region from its in vivo value of 678.5 nanometers to shorter wavelengths. The magnitude of this shift is
Functions of the water soluble chlorophyll-binding protein in plants.
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Functional aspects of water soluble chlorophyll-binding protein (WSCP) in plants were investigated during the courses of leaf senescence, chlorophyll biogenesis, stress response and photoprotection. The cDNA sequence encoding WSCP from cauliflower was cloned into a binary vector to facilitate
Flow cytometric characterization of the chlorophyll contents and size distributions of plant protoplasts.
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We have employed flow cytometry for the characterization of populations of protoplasts prepared from tobacco (Nicotiana tabacum) leaf tissues. We first investigated the possibility of using flow cytometric analysis of the emission of chlorophyll autofluorescence for measurement of the chlorophyll
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