According to fellow phycologists, algae expert Stefan Draisma from the Leiden University has turned brown algae phylogeny completely upside down. His research shows that few of the currently assumed relationships between the orders are correct. Furthermore, it transpires that some simple species arose not earlier but later than more complex species.
Brown algae are multicellular algae. Brown pigments mask the green colour of the chlorophyll. Most of the species occur in temperate regions. The plants vary from very small thread-like algae to giants of more than 50 metres in length. These giants, called kelps, grow for example off the Californian coast where they form true underwater forests. In the Netherlands fucoids can form large inter- and sub-tidal monostands on dikes. Under the waterline Fucus serratus and Sargassum muticum grow.
As well as examining the external characteristics of the brown algae, the researchers from Leiden University and the University of Groningen also compared the DNA composition of the various species. Previous studies had also examined the DNA but this was done in a less structured and extensive manner than in the current study.
Michel Philippens | alfa
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A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
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The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
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