Fykologi (alger og tang)

Molecular Impacts of Nanoparticles on Plants and Algae covers molecular mechanisms of plants/algae related to cellular uptake, translocation of nanoparticles, and genome, transcriptome, proteome, and metabolome responses against it. The book introduces readers to state-of-the-art developments and trends of nanoparticles and plants/algae including interactions of nanoparticles with biological compounds in vitro. Nanoscience and nanotechnology have rapidly been developed in the last few decades, and they have a wide range of applications in industry, medicine, food, and agriculture. In agriculture, nanoparticles (NPs) have successfully been used for growth regulation, crop protection and improvement. This book presents the most recent findings on nanoparticle and plant/algae interaction by focusing on molecular response mechanisms at genome, transcriptome, proteome and metabolome levels. In addition, uptake and translocation mechanism of nanoparticles are assessed both in plant and algae. Throughout this book, the latest developments and discoveries are highlighted, along with open problems and future challenges in molecular mechanisms of plants/algae as a response of nanoparticles.

This volume summarizes the results of a ten-year survey of small-sized marine Achnanthales (Bacillariophyceae) in Central Polynesia (South Pacific), focusing on their valve ultrastructures using the Scanning Electron Microscope (SEM). The degree of colonization of benthic marine substrates, species richness and emergence of new diatom taxa appear to vary according to the geologic past, presence of coral reefs and degree of insularity of each Central Polynesia island. Several recently published taxa from French Polynesia, such as Cocconeis santandrea and Xenococconeis opunohusiensis, are presented herein, together with some unpublished observations and new illustrations on all of the 13 described taxa. A Venn diagram permits the first comparison with assemblages studied with the same methodologies from Central Polynesia, New Caledonia and Mascarenes (Indian Ocean). Potential endemism is briefly discussed. The taxonomy used in this volume is based on valve ultrastructure as seen in the SEM, which allows an easier comparison of the small marine tropical Achnanthales taxa, which can be difficult to distinguish by light microscopy. It questions the presence of forms or 'morphs' in several species complexes. The concept of endemism in marine eukaryotes, currently still controversial, opens up other perspectives on the biogeography of these organisms. Marine benthic and small-sized diatoms are poorly studied in contrast to freshwater diatoms, which are often used to develop diatom indices for determining water quality. This volume can help researchers working on the taxonomy of the order Achnanthales, but will also aid students beginning detailed studies of marine benthic diatoms.

This comprehensive two-volume beautifully illustrated book reveals the richness of the seaweed flora of Danish waters. Covering the 373 seaweed species recorded from Danish waters, including 165 red, 125 brown and 83 green algae, the flora reflects the region’s habitats such as the distinctive stonereefs with mobile gravel and sand, coupled with the particular environmental conditions including a range of salinity gradients. Lavishly illustrated.401 + 439 pages

WINNER OF THE BEST MIXED MEDIA BOOK AWARD AT THE CREATIVE BOOK AWARDS 2024

A lavishly illustrated guide to the seaweed families of the worldSeaweeds are astoundingly diverse. They're found along the shallows of beaches and have been recorded living at depths of more than 800 feet; they can be microscopic or grow into giants many meters long. They're incredibly efficient at using the materials found in the ocean and are increasingly used in the human world, in applications from food to fuel. They're beautiful, too, with their undulating shapes anchored to the sea floor or drifting on the surface. Seaweeds aren't plants: they're algae, part of a huge and largely unfamiliar group of aquatic organisms. Seaweeds of the World makes sense of their complicated world, differentiating between the three main groups-red, green, and brown-and delving into their complex reproductive systems. The result is an unprecedented, accessible, and in-depth look at a previously hidden ocean world.Features close to 250 beautiful color photos as well as diagrams and distribution mapsCovers every major family and genus

A single-source reference on the biology of algae, the third edition of Algae: Anatomy, Biochemistry, and Biotechnology examines the most important taxa and structures for freshwater, marine, and terrestrial forms of algae.