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.
Results
Showing 1 to 20 of 98 for “"exudates"”.
-
The effects of various root exudates on broomrape germination
no abstract provided by author
-
Studies in molecular structure of plant polysaccharides : exudates from Encephalartos species
… particularly those that occur as gummy exudates from trees, are studied. Variations in the molecular structure of the polysaccharides are linked with the taxonomy of the plant concerned; this link with taxonomy is of particular interest where the cycads are concerned as these plants …
-
Structures of complex plant polysaccharides : exudates from Hakea sericea and Hakea gibbosa
The polysaccharide exudates from two species of Hakea (fam. Proteaceae), H. sericea (from Grahamstown) and H. qibbosa (from Constantiaberg), have been investigated. In this study molecular structural differences which may arise from the species of origin were sought. The possibility that a …
-
Structural investigations of the polysaccharide gum exudates from Brabeiurn Stellatifoliurn and Grevillea Robusta
The structures of the polysaccharide gum exudates from Brabeium stellatifolium and Grevillea robusta, both belonging to the family Proteaceae, have been investigated and compared. A general similarity between these two polysaccharide gums, both of high molecular weight, was apparent, although …
-
Metabolite Profiling of Leaves and Vascular Exudates in Soybean Grown Under Free-Air Concentration Enrichment
Exudate metabolomics combined with leaf biochemistry provided novel information and an understanding on inflow and outflow of metabolites in the leaves for a better explanation of source-sink relationships. It is hoped that the results will facilitate the phenotyping of C3 species allowing for the …
-
DISCLOSING THE ROLE OF ROOT EXUDATES IN MODULATING THE INTERACTION BETWEEN PLANT AND XENOBIOTIC DEGRADING BACTERIA
… stresses. This crosstalk is mediated by root exudates (REs), including plant secondary metabolites, that are released by the plant as a ‘cry-for-help’ to recruit beneficial bacteria. Plant-bacteria interactions are particularly relevant for rhizoremediation, a sustainable strategy for the …
-
High density exudates and basal meningeal enhancement in computed tomography of the head in the diagnosis of paediatric tuberculous meningitis
Includes bibliographical references (leaves 81-86).
-
Soluble urokinase plasminogen activator receptor in venous ulcers
… receptor has a role in ulcer‐healing.<br/>Ulcer exudates and ulcer tissue biopsies were obtained from patients with<br/>confirmed venous leg ulcers. Venous ulcers that healed within 6months of<br/>compression therapy were classified as healers (H) while those that did not heal<br/>in this time …
-
The final masquerade: a molecular-based approach to the identification of resinous plant exudates in Roman mortuary contexts in Britain and evaluation of their significance
… confirmation for the use of resinous plant exudates in mortuary contexts in Roman Britain. Analysis of amorphous masses, adhering residues and grave deposits using gas chromatography-mass spectrometry has revealed terpenoid biomarkers in sixteen inhumation and two cremation burials. The …
-
Influence of Penicillium simplicissimum (Oud.) Thom and Penicillium citrinum Thom on growth, chemical composition and root exudation of axenic marigold
… plant containers, designed for collecting root exudates, inside sterile gnotobiotic flexible plastic isolators. Plant roots were treated with washed conidiospores of Penicillium simplicissimum (Oud.) Thom (7 to 8 x 10⁶ per plant) or Penicillium citrinum Thom (4 x 10⁶ conidiospores per plant), …
-
Influence of Trichoderma Harzianum Rifai on growth, chemical compositions and root exudation of axenic tobacco
… analyses were made on the dried tissue. Root exudates were collected at the end of experiments and weekly for 12 weeks. Exudate collection was made by leaching the rooting medium with one-half strength nutrient solution while plants were in place, Chemical analyses were conducted on …
-
Clinical approaches for understanding the expression levels of pattern recognition receptors in otitis media with effusion
… (PRRs) in relation to characteristics of exudates, presence of bacteria, or frequencies of ventilation tube insertion (p>0.05). CONCLUSION: Our findings suggest that exudates of OME patients show PRR expressions that are related to the innate immune response regardless of the …
-
An Assessment of Perceived Crop Damage in a Tanzanian Village Impacted by Human-Elephant Conflict and an Investigation of Deterrent Properties of African Elephant (Loxodonta Africana) Exudates Using Bioassays
… signals to conspecifics. Compounds within the exudates of African elephants can be identified and used as deterrents around crop fields or to attract elephants to a safe haven. From July to September 2008, at Ndarakwai Ranch in northern Tanzania, (E,E)-farnesol and 3-pentanone were bioassayed …
-
Pheromones in entomopathogenic nematodes: effects on dispersal and reproductive behaviours
… adults. It was found that males are attracted to exudates of conspecific females, but not to exudates from females of the other species. The sexual history of the females dictated their level of attractiveness. Exudates of virgin females were highly attractive to males, whereas attractiveness was …
-
Dissection of phloem transport in cucurbitaceae by metabolomic analysis
… a low sugar concentration in their phloem exudates is a long-known problem that conflicts with this hypothesis. Previous metabolomic analysis shows the concentration of many small molecules in phloem exudates is higher than that of leaf tissues, which indicates an active apoplastic loading …
-
Effects of plant flavonoids on the fate of polynuclear aromatic hydrocarbons in rhizosphere soil
… soil microbial community sustained by root exudates. Whether certain root exudates would influence PAH degradation or bioavailability in soil is not adequately understood. Although various plant flavonoids, important components of root exudates, have been found to activate or inhibit PAH …
Page 1 of 5