Leonard G. Epp
University of Mount Union
7 Papers
7 Citations
Leonard G. Epp is an academic researcher from University of Mount Union. The author has contributed to research in topics: Tonicity & Osmotic concentration. The author has an hindex of 4, co-authored 7 publications.
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Papers
Microarray and cDNA sequence analysis of transcription during nerve-dependent limb regeneration
James R. Monaghan,Leonard G. Epp,Srikrishna Putta,Robert B. Page,John A. Walker,Christopher K. Beachy,Wei Zhu,Gerald M. Pao,Inder M. Verma,Tony Hunter,Susan V. Bryant,David M. Gardiner,Tim Harkins,S. Randal Voss +13 more
TL;DR: Many new candidate gene sequences were discovered for the first time and these will greatly enable future studies of wound healing, epigenetics, genome stability, and nerve-dependent blastema formation and outgrowth using the axolotl model.
Control of growth of Hydra cultures by tissue potassium.
Daniel C. Koblick,Leonard G. Epp +1 more
TL;DR: The growth rate of cultures of Hydra viridis decreases with increasing osmotic pressure of the culture medium, and osmotically produced depression of growth is associated with a decrease in tissue K content.
4
Osmotic properties of digestive cells of Hydra oligactis
Leonard G. Epp,Daniel C. Koblick +1 more
TL;DR: Microperfusion experiments with isolated digestive cells of Hydra oligactis indicate ideal osmotic behavior above 90 mOsmole, and Hypotonic regulation apparently occurs by the generation in hypotonic media of a transmembrane hydrostatic pressure which reaches about one-half atmosphere in strongly hypotonic solutions.
3
•Journal Article
Relationship of Intracellular Potassium to Asexual Reproduction in Hydra
Leonard G. Epp,Daniel C. Koblick +1 more
TL;DR: High levels of external potassium suppress budding but do not alter intracellular potassium levels, while high levels of Rubidium and caesium are ineffective as substitutes for potassium in the maintenance of growth rate.
1
Synthesis of the mesoglea by ectoderm and endoderm in reassembled hydra
TL;DR: Autoradiographic experiments, performed during the reassembly manipulations, conclusively demonstrate that the mesoglea originates from both epithelia.