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Dos chicos van al jardín botánico y al escuchar la historia de un alga que vive en un estanque, cuyo sueño era ser una flor. Con la lectura de este libro pondremos a prueba lo que los lectores saben sobre la evolución de las plantas, siendo invitados a responder algunas preguntas y a escribir y dibujar una pequeña historia.
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Weit über 25.000 Arten von Mikroalgen stellen ein bislang kaum erschlossenes Potential für die Biotechnologie dar. Sie bilden vielfältige Produkte wie Farbstoffe, ungesättigte Fettsäuren, Polysaccharide und Antioxidanten mit interessanten Einsatzgebieten u.a. in der Lebensmittel- und Kosmetikindustrie. Pharmazeutisch wirksame Produkte aus Mikroalgen sind bekannt, aber noch unzulänglich untersucht. Um ihre Bildung näher verstehen und in größerem Maßstab (scale up) durch geeignete Auswahl von Kultivierungsparametern beeinflussen zu können, wird ein mathematisches Modell entwickelt, welches das Wachstum und die Produktbildung einer einzelligen Mikroalge Porphyridium purpureum abbildet.Die Validierung des entwickelten mathematischen Modells erfolgt durch den Einsatz von geeigneten experimentell gewonnenen Kultivierungsdaten der Mikroalge Porphyridium purpureum in Abhängigkeit von Kultivierungsparametern wie der Lichtquantität oder -qualität in einem am Institut für Mechanische Verfahrenstechnik und Mechanik entwickelten Photobioreaktor. Die experimentellen Untersuchungen zu Wachstum und Produktbildung der Mikroalge sowie die Modellierung ihrer Stoffwechselaktivität zur besseren Vorhersagbarkeit und zur Auslegung von Pilotanlagen stellen die beiden Hauptschwerpunkte dieser Arbeit dar.
Algae --- Metabolism.
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Algae - Organisms for Imminent Biotechnology will be useful source of information on basic and applied aspects of algae for post graduate students, researchers, scientists, agriculturists, and decision makers. The book comprises a total of 12 chapters covering various aspects of algae particularly on microalgal biotechnology, bloom dynamics, photobioreactor design and operation of microalgal mass cultivation, algae used as indicator of water quality, microalgal biosensors for ecological monitoring in aquatic environment, carbon capture and storage by microalgae to enhancing CO2 removal, synthesis and biotechnological potentials of algal nanoparticles, biofilms, silica-based nanovectors, challenges and opportunities in marine algae, and genetic identification and mass propagation of economically important seaweeds and seaweeds as source of new bioactive prototypes.
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Microalgae are photosynthetic unicellular microorganisms that represent an extremely important component of the aquatic ecosystem productivity, diversity, and functioning. Moreover, these microorganisms, using a network of signals, interact with all the other organisms present in their environment. Signals are often secondary metabolites that play an important role in competition, defense, attraction, and signaling. These molecules are recognized for having bioactive properties, but some of them are still largely underexplored and underexploited. This Special Issue focuses on studies aimed to improve knowledge on microalgal ecology (diversity and dynamics) in aquatic ecosystems, as well as on their capacity to produce bioactive compounds with potential biotechnological applications.
Microalgae. --- Micro-algae --- Algae --- Microorganisms
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Seaweeds are recognized as highly nutritious, and their use in gastronomy is increasing. Their health benefits and their potential to prevent several diseases have also been established. In this Special Issue several health effects are discussed, with more emphasis on their antitumor activity and potential use to treat Alzheimer's disease. The key bioactive metabolites, from which phlorotannins can be highlighted, are presented, as well as some important in vivo studies. Altogether, the chapters provide in-depth information about the biological activities of seaweed metabolites, contributing to elucidate the health effects of seaweed.
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The cycling of energy and elements in aquatic environments is controlled by the interaction of autotrophic and heterotrophic processes. In surface waters of lakes, rivers, and oceans, photosynthetic microalgae and cyanobacteria fix carbon dioxide into organic matter that is then metabolized by heterotrophic bacteria (and perhaps archaea). Nutrients are remineralized by heterotrophic processes and subsequently enable phototrophs to grow. The organisms that comprise these two major ecological guilds are numerous in both numbers and in their genetic diversity, leading to a vast array of physiological and chemical responses to their environment and to each other. Interactions between bacteria and phytoplankton range from obligate to facultative, as well as from mutualistic to parasitic, and can be mediated by cell-to-cell attachment or through the release of chemicals. The contributions to this Research Topic investigate direct or indirect interactions between bacteria and phytoplankton using chemical, physiological, and/or genetic approaches. Topics include nutrient and vitamin acquisition, algal pathogenesis, microbial community structure during algal blooms or in algal aquaculture ponds, cell-cell interactions, chemical exudation, signaling molecules, and nitrogen exchange. These studies span true symbiosis where the interaction is evolutionarily derived, as well as those of indirect interactions such as bacterial incorporation of phytoplankton-produced organic matter and man-made synthetic symbiosis/synthetic mutualism.
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Dos chicos van al jardín botánico y al escuchar la historia de un alga que vive en un estanque, cuyo sueño era ser una flor. Con la lectura de este libro pondremos a prueba lo que los lectores saben sobre la evolución de las plantas, siendo invitados a responder algunas preguntas y a escribir y dibujar una pequeña historia.
Self-esteem. --- Algae.
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