Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 69 for “"salt stress"”.
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Improving salt stress resistance in cereals
Salinity is a complex environmental stress that affects growth and production of agriculturally important crops world-wide. Tolerance to salt stress is variable for different plants and involves integration of various physiological and biochemical mechanisms. This thesis investigates the role in …
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The Phenotypic Effects and Transcript Response of Salt Stress, the Impact of Viral Infection on Salt Stress Symptoms, and the Effect of Salt Stress on Soybean Virus Vector Activity in Soybean Varieties That Vary in Chloride Uptake
… worldwide, understanding the mechanisms for salt tolerance in plants is important to reduce yield loss due to salt stress. Soybean, <italics>Glycine max </italics> (L.) Merr., genotypes differ in chloride uptake with genotypes that take up chloride into foliar tissues tending to be …
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SPATIOTEMPORAL CONTROL OF THE SALT STRESS INDUCED TRANSCRIPTIONAL RESPONSE IN ARABIDOPSIS
… pathways are integrated spatiotemporally under salt stress and how transcriptional regulation occurs. Firstly, I did an analysis on a previously generated spatiotemporal transcriptional map of salt stress in Arabidopsis roots, covering 4 core cell types and 6 time points for salt treatment. …
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Salt stress responses in pear and quince: physiological and molecular aspects
… Pyrus communis is generally considered a salt sensitive species, but only little information is available on its behavior under saline conditions. Previous studies, carried out in the Department of Fruit Tree and Woody Plant Science (University of Bologna), focused their attention on pear …
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Effects of Vesicular-Arbuscular Mycorrhizae on Plants Growing Under Salt Stress
Under salt (NaCl) stress, onions (Allium cepa) and bell peppers (Capsicum annuum) inoculated with either Glomus fasciculatus or Gigaspora margarita grew larger than the nonmycorrhizal controls. To determine if improved phosphate (P) nutrition supplied by the mycorrhizal endophytes was the factor …
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Characterization of ESl47, a salt stress regulated protein kinase from Lophopyrum elongatum
… investigated to elucidate its potential role in salt tolerance and salt stress response. The yeast two-hybrid system was used to screen a cDNA Arabidopsis library and identify proteins that interact with the ESI47 kinase. Six partial DNA sequences encoding a 33 kDa oxygen-evolving enhancer …
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Seed germination requirements and salt stress tolerance of coastal rare species in Sardinia
… metabolic adaptations to overcome environmental stresses. Stress may be physical (e.g. temperature) or chemical (e.g. salinity). Many communities comprise highly specialized species, which have comparatively restricted geographical distributions. The coastal species investigated in this Ph.D. …
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An Immobilization Antigen in Tetrahymena Pyriformis Expressed Under Conditions of High Salt Stress
Made available in DSpace on 2014-12-12T01:27:34Z (GMT). No. of bitstreams: 1 7212179.pdf: 2659935 bytes, checksum: 211c18c53fe75a1a7cee026ad4fafcb2 (MD5) Previous issue date: 1971
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Modulation of soybean and maize antioxidant activities by Caffeic acid and nitric oxide under salt stress
… oxide, exogenously applied caffeic acid and salt stress on the ontioxidant system in cereal (exemplified by maize) and legume (using soybean as an example) plants together with their influence on membrane integrity and cell death. This study investigates changes in H₂O₂ content, root lipid …
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Characterisation of auxin and auxin-related genes in the response of Arabidopsis thaliana to salt stress
… detrimental effects on plant growth and yield. Salt imposes both an osmotic and ionic stress on plants, and the aim of this study was to investigate the molecular basis of the plant response to the ionic component of salinity stress. To do so, transcriptome profiling using microarrays was …
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ROLE OF THE ROOTSTOCK IN INFLUENCING FRUIT QUALITY AND TOLERANCE TO SALT STRESS IN PIGMENTED CITRUS SPECIES
… HLB), limitando anche gli stress ambientali e modulando la risposta fisiologica della pianta, influenzando in modo determinante la crescita, la fioritura e la fruttificazione. Per tale ragione, risulta risolutivo identificare il portinnesto che meglio si adatti alle diverse …
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Protein Phosphatase 2A Function in Response to Salt Stress in Arabidopsis thaliana: Defining Pathways and Genetic Interaction Networks
… the response of Arabidopsis seedlings to sodium stress.</p> <p>Underlying mechanisms involved in the root response to sodium stress was examined using a multistep mutant screen. A mutant collection was screened representing 21,520 T-DNA insertions. Out of the 138,000 seedlings visually examined …
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Quantitative Trait Loci (QTL) for Salt Tolerance in Soybean and Physiological Response to Salt Stress During Early Growth Stage
… as a source of high–quality protein and oil. Salt stress is one of the main abiotic stresses causing significant yield losses in soybean, which is considered a moderately salt–sensitive crop. Breeding selection is a promising strategy to improve salt tolerance as soybean germplasm display wide …
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Salt stress and UV-B radiation modulate growth, physiology and 20-hydroxyecdysone contents in Brazilian-ginseng [Pfaffia glomerata (Spreng.) Pedersen]
… were performed aiming to evaluate the impact of salt stress and UV-B radiation on growth, physiology, expression of key genes involved in the biosynthesis and the 20E content in Pfaffia glomerata. In the first experiment, accession 43 (A43) plants with 40-day-old grown in greenhouse were exposed …
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Attempts toward the expression in transgenic Arabidopsis thaliana of Esi47, a salt stress-induced gene encoding a protein kinase from Lophopyrum elongatum
… kinase, which normally is induced as part of the salt-stress response in Lophopyrum elongatum. Agrobacterium-mediated transformation of A. thaliana, by tissue-culture and vacuum infiltration, were both attempted. A number of plant transformation constructs were made for gene promoter analysis. …
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Isolation and sequencing of a genomic clone of ESI28 : an early salt-stress induced gene of the salt-tolerant wild wheatgrass Lophopyrum elongatum
… ESI28-G-5, codes for the ESI28 gene (early salt-stress induced). The 5$\sp\prime$-upstream sequence contains a putative TATA box and abscisic acid (ABA) response element (ABRE). The genomic clone contains a long open reading frame (ORF) which encodes a polypeptide of 143 amino acids with a …
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Physiological and molecular mechanisms of salt tolerance in barley (Hordeum vulgare L.)
… physiological and molecular mechanisms of salt tolerance. Using the mRNA differential display technique, 21 cDNA fragments were cloned from young leaves, 10 of them had homologues from GenBank. A leucine zipper transcription factor gene (B 15/B20) was upregulated in Golden Promise and …
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SALT EXPOSURE AND NITROGEN METABOLISM IN TOMATO (SOLANUM LYCOPERSICUM L.): IMPROVEMENT OF THE RESILIENCE TO ABIOTIC STRESS
Salt stress is a critical challenge to plant growth and global food security, necessitating an in-depth understanding of the mechanisms plants employ to adapt to saline environments. Nitrogen (N) metabolism plays a pivotal role in regulating plant responses to salinity, with complex interactions …
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