Further investigations on the morphology, biochemical reactions, and serological relationships of strains of Mima polymorpha and Achromobacter (Bacterium) anitratum are reported. The results seem to indicate such a close relationship that it may yet be necessary to reconsider the nomenclature of these organisms.

Stereospecific olefin (C=C) and carbonyl (C=O) reduction of the readily available prochiral compound ketoisophorone (2,2,6-trimethyl-2-cyclohexene-1,4-dione) (1) by Marchantia polymorpha and Nicotiana tabacum cell suspension cultures produce the chiral products (6R)-levodione (2), (4R,5S)-4-hydroxy-3,3,5-trimethylcyclohexanone (3), and (4R,6R)-actinol (4) as well as the minor components (4R)-hy...

In this contribution, new data concerning bryophytes, fungi and lichens of the Italian flora are presented. It includes records, confirmations or exclusions for bryophyte genera Acaulon , Campylopus Entosthodon Homomallium Pseudohygrohypnum Thuidium fungal Entoloma Cortinarius Mycenella Oxyporus Psathyrella lichen Anaptychia Athallia Baeomyces Bagliettoa Calicium Nephroma Pectenia Phaeophyscia ...

Tropical seagrasses are at their highest risk of exposure to photosystem II (PSII) herbicides when elevated rainfall and runoff from farms transports these toxicants into coastal habitats during summer, coinciding with periods of elevated temperature. PSII herbicides, such as diuron, can increase the sensitivity of corals to thermal stress, but little is known of the potential for herbicides to...

• Premise of the study: Many lichens exhibit extensive ranges spanning several ecoregions. It has been hypothesized that this wide ecological amplitude is facilitated by fungal association with locally adapted photobiont strains.• Methods: We studied the identity and geographic distribution of photobionts of the widely distributed North American lichen Ramalina menziesii based on rbcL (chloropl...