Swimming microorganisms create flows that influence their mutual interactions and modify the rheology of their suspensions. While extensively studied theoretically, these flows have not been measured in detail around any freely-swimming microorganism. We report such measurements for the microphytes Volvox carteri and Chlamydomonas reinhardtii. The minute (∼0.3%) density excess of V. carteri ove...

This paper illustrates the results of a survey aimed at deepening knowledge on vegetation in which Festuca lachenalii and Ophioglossum lusitanicum were recently discovery Mt. Vesuvius (Italy) after about 200 150 years from last observation, respectively. Both species previously thought to be locally extinct. These noteworthy microphytes are rare poorly documented within their global distributio...

the seasonal diversity and distribution of microphytes and macrophytes in 40 artificial irrigationponds constructed in a semi-arid region, and the most suitable conditions to maintain these enclaves asbiodiversity spots were studied for the first time. a total of 104 species were detected. bacillariophyta,cyanobacteria and chlorophyta dominated both pelagic and benthic microphytic communities, ...

despite to its importance for retaining biodiversity and human health, urban wetlands have received much less attention than other wetland types in northern iran. this study deals with the floristic characteristics of one of the largest urban wetlands in central mazandaran, roshanabad wetland in babol.  all vascular plants were collected during two growing seasons of 2014 and 2015 and water sam...

Microorganisms, such as bacteria, microphytes (tiny plants such as microscopic algae), and protists (a diverse group of single cell organisms), are present in every part of the biosphere: giant plankton blooms in the oceans, protozoa in our lakes and ponds, beneficial or pathogenic bacteria in our bodies are but a few examples that we are all familiar with. The ability of microorganisms to move...

Under the term Mycosis fungoide, Alibert in 1832 described, and in the following year figured in his Atlas, a rare disease of the skin, attaching to it the designation mycosis, from the resemblance which the tumours seen in its later stages bear to a mushroom, but without reference to any supposed parasitic origin, though now the word is a generic one, applied to affections manifestly due to ve...

In this contribution, we describe latest Cretaceous aquatic plant communities from the La Colonia Formation, Patagonia, Argentina, based on their taxonomic components and paleoecological attributes. The La Colonia Formation is a geological unit deposited during a Maastrichtian-Danian transgressive episode of the South Atlantic Ocean. This event resulted in the deposition of a series of fine-gra...