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 6 of 6 for “"early land plants"”.
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Understanding Plant Response to Stress Using Gene Model Quality Evaluation and Transcriptome Analysis
… overall aim of the project was to understand how plants reacted to environmental stress and evolved to overcome it. The land plants that we see today evolved from a green algal ancestor around 510 million years ago. Plants had to make significant changes to their cellular, morphological, …
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Characterizaion and Chemical Rescure of the Phenotype of ors-3, a Knockout mutant line of PpORS in Physcomitrella patens
… dehydration, and imply that an ancestral ORS in early land plants may have contributed to their successful colonization of the land.
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THE SPECIAL WALLS AROUND GAMETES IN CERATOPTERIS RICHARDII AND AULACOMNIUM PALUSTRE: USING IMMUNOCYTOCHEMISTRY TO EXPOSE STRUCTURE, FUNCTION, AND DEVELOPMENT
… cells formed during the sexual life cycle of plants. The ancestral condition of gametes in land plants is the production of small motile sperm cells and larger non-motile eggs. Unique walls or cell matrices are formed during the development of these highly specialized cells, and are integral …
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Terrestrialization and evolutionary radiation of basal embryophytes on the Gondwana
The conquest of land is one of the most important evolutionary steps in embryophyte evolution. It allowed plants to reach an outstanding level of diversity, conquer a variety of new ecological niches and dominate almost all terrestrial ecosystems. The early floras of Laurussia are well studied. …
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The effect of UV-B radiation on flavonoid accumulation and gene expression in Marchantia polymorpha
… closest living representation of the earliest land plants and as such may give insight into the response that allow the first land plants to transition from the aquatic environment onto the terrestrial. One such adaption allowing this transition was to that of UV-B radiation and is the main …
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Evolution of stomata in mosses (Bryophyta): From molecules to form and function
As one of the first land plant groups to diversify, mosses are central in understanding the origin, diversification, and early function of stomata. Unlike tracheophytes that have stomata on anatomically complex leaves and stems, mosses bear stomata exclusively on spore-bearing organs (capsules). …