Sökning: "Bryophyta"

Hittade 2 avhandlingar innehållade ordet Bryophyta.

1. 1. Taxonomy of Schistidium (Grimmiaceae, Bryophyta)

   Författare :Birgitta Bremer; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : Schistidium Brid. is a bryophyte genus mainly distributed in temperate to arctic zones. This revision is based on field, herbarium, and literature studies. There are descriptions of the genus and the 12 species and discussions of morphology, relationships, history, nomenclature, habitat, and distribution, and keys to accepted taxa. LÄS MER

3. 2. Studies on Natural Variation and Evolution of Photoperiodism in Plants

   Författare :Karl Holm; Ulf Lagercrantz; Martin Lascoux; Seth Jon Davis; Uppsala universitet; []
   Nyckelord :photoperiodism; circadian; flowering time; natural variation; evolution; Caspella bursa-pastoris; Physcomitrella patens; Biologi med inriktning mot evolutionär funktionsgenomik; Biology with specialization in Evolutionary Functional Genomics;

   Sammanfattning : Photoperiodism refers to the organism’s ability to detect and respond to seasonal changes in the daily duration of light and dark and thus constitutes one of the most significant and complex examples of the interaction between the organism and its environment. This thesis attempts to describe the prevalence of variation in a photoperiodic response, its adaptive value, and its putative genetic basis in a common cruciferous weed, Capsella bursa-pastoris (Brassicaceae). LÄS MER