Search for dissertations about: "clonal"

Showing result 1 - 5 of 277 swedish dissertations containing the word clonal.

  2. 1. Population biology of the clonal plant Ranunculus lingua

    Author : Mats E. Johansson; Christer Nilsson; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; clonal fragmentation; emergent macrophytes; fungal pathogens; hydrochoiy; invertebrate grazing; marginal population; Peronospora gigantea Prasocuris phellandrt regional abundance; rhizome production; size-number trade-off; vegetative reproduction; water-level fluctuation;

    Abstract : The scope of this thesis was to identify, describe and quantify important life-history traits for the pseudoannual aquatic plant Ranunculus lingua in different ecological settings, by comparing populations from geographically marginal vs. central habitats. READ MORE

  4. 2. Physiological integration and morphological plasticity in extensive clonal plants

    Author : Tina D'Hertefeldt; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant ecology; Maianthemum; Carex; Clonal plants; tracers; Växtekologi;

    Abstract : Clonal plants show a large variation in physiological integration, i.e. the translocation of resources among ramets within the clone. READ MORE

  5. 3. Haemophilus influenzae – typing, epidemiology and beta-lactam resistance

    Author : Viktor Månsson; Malmö Klinisk mikrobiologi; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; benzylpenicillin; beta-lactam resistance; beta-lactams; BLNAR; capsule typing; clonal; Haemophiilus influenzae; Hib; MALDI-TOF MS; MLST; NTHi; serotyping; virulence; epidemiology;

    Abstract : Haemophilus influenzae is a common cause of respiratory tract infections such as acute otitis media (AOM), exacerbations of chronic obstructive pulmonary disease (COPD) and pneumonia. The species is subdivided into encapsulated and non-encapsulated strains, designated type a-f and nontypeable H. influenzae (NTHi), respectively. READ MORE

  6. 4. Clonal structure and reproductive biology in the gynodioecious herb Glechoma hederacea L. Lamiaceae

    Author : Marie Widén; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Systematisk botanik; chemotaxonomy. Physiology of nonvascular plants; phytogeography; morphology; taxonomy; Systematic botany; clonal structure; isoloci; disomic inheritance; genetic diversity; polyploidy; male sterility; sex expression; pollen limitation; sexual reproduction; gynodioecy; Glechoma hederacea; Lamiaceae; taxonomi; morfologi; kemotaxonomi. Växters fysiologi inte kärlväxter .;

    Abstract : Clonal structure and reproductive biology in the gynodioecious herb Glechoma hederacea L. Lamiaceae The frequencies of females, hermaphrodites and partially male-sterile (PMS) genets of Glechoma hederacea were estimated in natural populations in S Sweden. The frequency of females and PMS genets in natural populations varied from 0 to 100%. READ MORE

  7. 5. Life-history traits and population differentiation in a clonal plant: implications for establishment, persistence and weediness

    Author : Johanna Eneström; Biologiska institutionen; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; weediness; Clonal plant; resource sharing; resource storage; partitioning of genetic variation; seedling development; seed recruitment; Aegopodium podagraria;

    Abstract : Clonality is wide-spread among plants, and clonal plants dominate many habitats and include many highly invasive species. Clonal growth incurs both advantages and costs and clonal plants often have reduced sexual reproduction compared to non-clonal plants which could be expected to lower genetic variation and hence evolutionary potential. READ MORE