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Showing 1 to 20 of 85 for “"higher plants"”.
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Vanadium uptake and transport in higher plants
The uptake and transport of vanadium in several higher plant species has been examined. Studies utilizing excised Hordeum roots have revealed the uptake patterns of two different ionic species of vanadium (V02+ and V03) to be similar. Both ionic forms exhibited a large extracellular component in …
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Molecular Genetic Analysis of Cyclic GMP Signaling in Higher Plants
… of a global regulatory network that exists in plants and permits fine control of a multitude of responses to various environmental conditions. In this study, an investigation of the basic mechanisms of phytochrome signal transduction, and the way this signaling pathway interacts with sugar …
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A Biochemical and Physiological Study of Atp Sulfurylase in Higher Plants
Made available in DSpace on 2014-12-10T17:12:45Z (GMT). No. of bitstreams: 1 7013229.pdf: 2025099 bytes, checksum: d6c38a4830f41ae99e9d03fbaa4f9fc6 (MD5) Previous issue date: 1969
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Chloroplast Biotechnology in Higher Plants: Expressing Antimicrobial Genes in the Plastid Genome
While genetic improvement of susceptible crop species may enhance resistance to microbial pathogens and facilitate reduced pesticide load, the possibility for transmission of novel genes to wild relatives has hampered acceptance of GM crops in some markets. Chloroplast transformation presents an …
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Investigation of the roles of a membrane-bound caleosin in higher plants
… of storage lipid bodies in the seeds of higher plants, the other being oleosins. In contrast with oleosins,<br/>caleosins have a single calcium-binding EF-hand domain plus several potential phosphorylation sites and have been hypothesised as playing a role in lipid-body formation and …
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Regulation of nitrate reductase activity in higher plants / by Arun Prakash Aryan
Bibliography: leaves 142-164
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Studies on the Biosynthesis of Protochlorophyllide Ester in Etiolated and Green Tissues of Higher Plants
Cucumber cotyledons incubated in darkness with (alpha),(alpha)'-dipyridyl and (delta)-aminolevulinic acid (ALA) accumulated a pigment which had the spectroscopic properties of Mg-protoporphyrin monomethyl ether (MPE) but physical properties similar to those of protochlorophyllide (Pchlide) ester. …
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Characterization and molecular cloning of sos3: A gene important for salt tolerance and potassium nutrition in higher plants
… function in salt response and salt tolerance in higher plants. During my dissertation research, the sos3-1 mutant was isolated and characterized. The mutant plants are hypersensitive to Na⁺ and unable to grow with low K⁺. Increased Ca²⁺ levels can partially suppress the growth defect of the …
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Gene expression in plastids of higher plants: evolutionary and functional aspects of different RNA polymerases - coordinated assembly of multiprotein-complexes
Plastid gene organisation maintains characteristics typical of its prokaryotic ancestry. The regulation of plastid gene expression however strongly deviates from that one its free-living cyanobacteria relatives. This intriguing complication of plastid gene expression characteristics is the result …
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Investigations of Bicyclo(3.1.1)heptane Terpenes in Higher Plants: Stereochemistry of Pinene Biosynthesis and Isolation of Bergamoten-12-Oic Acids
Cell-free enzyme preparations of (+)-pinene cyclase I and ($-$)-pinene cyclase II isolated from leaves of common sage (Salvia officinalis) are known to convert geranyl pyrophosphate (GPP) to the bicyclic monoterpenes (+)-$\alpha$-pinene (cyclase I) and ($-$)-$\alpha$-pinene and ($-$)-$\beta$-pinene …
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A bright, sweet evolution: a molecular genetic analysis of Calvin cycle gene expression response to light and sugar in the liverwort marchantia polymorpha, and insights into Calvin cycle promoter motif enrichment in land plants
Higher plants are frequently used as model organisms in Calvin Benson Bassham cycle (CBB) research given their ease of use in the laboratory. The expression of CBB genes in higher plants is well known to be regulated by light, sugar and plant development, yet no focus has been given to lower plant …
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The effect of various organic compounds on the growth of azotobacter
… determine if this toxicity extends to the lower plants. The Azotobacter was chosen as a representative of the soil flora since it is of recognized importance in the maintenance of the soil fertility and its growth may be accurately measured by analytical means. The compounds used were those …
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Molecular systematics of Plasmodiophora brassicae
… a group of obligate parasites of various higher plants, algae and Oomycetes have been classified in various ways as both protists and fungi. It is not known which, if any, of these classification schemes reflects the actual evolutionary relationships of this group.
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The cloning of calmodulincDNAs from barley and Arabidopsis and expression of barley calmodulin in transgenic tobacco
… signal transduction pathways in plants at the molecular level, cDNA sequences of CaM and CaM-like proteins were cloned and characterized from higher plants.
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The Effects of Chemical Modification Upon Herbicide Binding in Thylakoid Membranes of Spinacia Oleracea (Spinach) and Amaranthus Hybridus (Pigweed), and The Photochemical Reaction Center of Rhodobacter Sphaeroides R26
… between Q$\sb{\rm A}$ and Q$\sb{\rm B}$ in both higher plants and photosynthetic bacteria in an analogous manner to that seen for the classic Photosystem II inhibitors such as diuron and atrazine. It does not bind to the same binding domain as these inhibitors. It does not bind covalently, …
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Studies on 4-vinyl protochlorophyllide reductase and the biological significance of the divinyl and monovinyl monocarboxylic chlorophyll a biosynthetic routes
… the end product of chlorophyll a biosynthesis in higher plants. Most of the monovinyl chlorophyll a is formed via two major biosynthetic routes, the divinyl and monovinyl monocarboxylic routes which appear to be linked at various levels of chlorophyll precursors. The enzymes responsible for the …
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Analysis of tandemly and divergently oriented spinach chloroplast promoters
Chloroplast genes in higher plants frequently synthesize multiple RNA transcripts. Part of this heterogeneity in RNA is due to posttranscriptional RNA processing events; however, some chloroplast genes such as the $\beta$ subunit of the ATP synthase (atpB) may contain multiple promoters. Ba131 …
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A Possible Role of Ascorbate in Boron Deficient Radish (Raphanus sativa L. cv. Cherry Belle)
The most apparent symptom of boron deficiency in higher plants is a cessation of growth. Deficiency causes a reduction in ascorbate concentration and the absorption of nutrient ions. Addition of ascorbate temporarily relieves deficiency symptoms. In boron sufficient plants the addition of ascorbate …
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Effects of amino acid residue substitutions on bicarbonate function in the plastoquinone reductase in cyanobacteria
… and reversibly inhibited in chloroplasts of higher plants and algae depleted of bicarbonate while no such inhibition has been observed in photosynthetic bacteria. It was observed in this study that a more than four fold stimulation of the Hill reaction by 5 mM bicarbonate and a significant …
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