Search for dissertations about: "spore"
Showing result 1 - 5 of 64 swedish dissertations containing the word spore.
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1. Catching the Spore killers : Genomic conflict and genome evolution in Neurospora
Abstract : A genome is shaped by many different forces. Recombination can for instance both create and maintain genetic diversity, but the need to locally reduce recombination rates will also leave specific signatures. READ MORE
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2. The ecological significance of sexual reproduction in peat mosses (Sphagnum)
Abstract : Peat mosses (Sphagnum) are widely distributed and are a major component of mire vegetation and peat throughout the boreal and temperate regions. Most boreal Sphagnum species regularly produce sporophytes, but the ecological role of the spore has been questioned. READ MORE
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3. Dispersal of bryophytes across landscapes
Abstract : Dispersal, especially long-distance dispersal, is an important component in many disciplines within biology. Many species are passively dispersed by wind, not least spore-dispersed organisms.In this thesis I investigated the dispersal capacity of bryophytes by studying the colonization patterns from local scales (100 m) to landscape scales (20 km). READ MORE
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4. Genetic variation and sexual reproduction in a moss with dwarf males, Homalothecium lutescens
Abstract : Dwarf males occur in many unrelated groups of organisms. Among land plants they are unique to mosses. Moss dwarf males originate from male spores that land and germinate on the female where their final size is restricted to a few mm. Fertilization in mosses occur over short distances with swimming spermatozoids. READ MORE
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5. Dynamic Organization of Molecular Machines in Bacteria
Abstract : Bacterial cells were once treated as membrane-enclosed bags of cytoplasm: a homogeneous, undifferentiated suspension in which polymers (proteins, nucleic acids, etc.) and small molecules diffused freely to interact with each other. READ MORE