Nucletmycea

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

All Biocode files are based on field identifications to the best of the researcher’s ability at the time.

Maybe you've tasted chestnuts roasting over an open fire, but have you ever heard of the tragedy of the American chestnut? This species, Castanea dentata, is effectively extinct -- thanks to the forces of the ruthless fungus Cryphonectria parasitica, agent in the now infamous chestnut blight.Shara Azad from Erika Edwards' Plant Diversity course at Brown University (Biol0430) investigates what happened to those thousands of acres of American chestnut forests and what glimmers of hope there may be in the future. Music is by Mobster - freemusicarchive.org/music/Mobster/My_Sleep/02_-_Deep_forest.Special thanks to the Brown University Science Center and the Granoff Center for the Arts.

This week’s podcast begins with a riddle about a life form that’s all around us, yet rarely seen. Working under cover, it sends its ghostly tendrils into almost every corner of the terrestrial world. We associate it with death and decay, but life as we know it would be impossible without it. Come for a walk in the woods with Ari Daniel Shapiro and learn how this mysterious form of life, neither animal nor vegetable, shapes our world. Download a transcript of this podcast read moreDuration: 5:29Published: Wed, 02 May 2012 14:22:48 +0000

Dorataspid acantharean, the cytoplasm is attached to the radiating strontium sulphate spicules by contractile myonemes. The outer cytoplasm (ectoplasmic layer) is filled with vacuoles, and most of the cytoplasmic organelles are located within the central capsule which is orange. The acantharea are one of the four types of large amoebae which occur in the marine water column. Dark ground image by Linda Amaral Zettler.

Individual collected in Saanich Inlet, Vancouver Island, British Columbia. Image courtesy of R. Timothy Patterson, Carleton University. This image first appeared in J. Foram. Res. 28:201-219 and is used with permission.

Nuclearia (new-clee-air-ee-a), a nucleariid (cristi-discoid) filose amoeba. Exclusively with thin pseudopodia without skeletal supports. More of these project from the front of the cell (to the right), whereas they appear a little more crumpled at the posterior end. Eats bacteria, algae, detritus. Phase contrast.

Amoeboaphelidium (a-me-boe-aff-ell-id-ee-um) Phase contrast.

Pringsheimella (pring-shy-mell-a), an ulvophyceaen green alga forming an aggregate of cells. Phase contrast microscopy. data on this strain.

Randers Fjord

Ilulissat, Greenland, Grønland

Sorø Allé

Skanderborg Dyrehave, Danmark

Thorsmølle, Marcelisborg Skov, Århus

Kasted Mose

Enebærstykket, Klosterheden

Djursland midt

Hove Kirke

Muldbjerge v Dokkedal, sydlige del, Jylland, Danmark

Gærumhede Plantage, Nordjylland, Danmark

Lille Skovsgårds hage, Mariager Fjord, Danmark

Sorø