Jeffrey R Johansen

ResearcherID Scopus Author ID ORCID

Publication Activity (10 Years)

Years Active: 2017-2024
Publications (10 Years): 15

Top Venues

Journal of phycology

PloS one

Jihočeská Univerzita v Českých Budějovicích

Brigham Young University (PHD)

This page only lists publications with an associated author ORCID identifier.

Affiliation History

Jihočeská Univerzita v Českých Budějovicích

Czechia

Adjunct Professor :: Botany

John Carroll University

United States

Professor :: Biology

John Carroll University

United States

Associate Professor :: Biology

John Carroll University

United States

Assistant Professor :: Biology

Education History

Brigham Young University

United States

PHD :: Botany and Range Science

Brigham Young University

United States

MSC :: Botany and Range Science

Brigham Young University

United States

BSC :: Botany and Range Science

Publications

Chelsea D Villanueva, Markéta Bohunická, Jeffrey R Johansen
We are doing it wrong: Putting homology before phylogeny in cyanobacterial taxonomy. Journal of phycology (2024)
Aniket Saraf, Prashant Singh, Naresh Kumar, Sagarika Pal, Jeffrey R Johansen
Two new species of Dulcicalothrix (Nostocales, Cyanobacteria) from India and erection of Brunnivagina gen. nov., with observations on the problem of using multiple ribosomal operons in cyanobacterial taxonomy. Journal of phycology (2024)
Rúben Luz, Rita Cordeiro, Jan Kaštovský, Jeffrey R Johansen, Elisabete F Dias, Amélia Fonseca, Ralph Urbatzka, Vitor Manuel Oliveira Vasconcelos, Vítor Gonçalves
Description of four new filamentous cyanobacterial taxa from freshwater habitats in the Azores Archipelago. Journal of phycology (2023)
Mildred U Akagha, Nicole Pietrasiak, David F Bustos, Alžběta Vondrášková, Sandra C Lamb, Jeffrey R Johansen
Albertania and Egbenema gen. nov. from Nigeria and the United States, expanding biodiversity in the Oculatellaceae (cyanobacteria). Journal of phycology (2023)
Brian M Jusko, Jeffrey R Johansen
Description of six new cyanobacterial species from soil biocrusts on San Nicolas Island, California, in three genera previously restricted to Brazil. Journal of phycology (2023)
Lauren M Baldarelli, Nicole Pietrasiak, Karina Osorio-Santos, Jeffrey R Johansen
Mojavia aguilerae and M. dolomitestris - two new Nostocaceae (Cyanobacteria) species from the Americas. Journal of phycology 58 (4) (2022)
Naresh Kumar, Aniket Saraf, Sagarika Pal, Deeksha Mishra, Prashant Singh, Jeffrey R Johansen
Circumscription of Fulbrightiella gen. nov. and Sherwoodiella gen. nov., two novel genera in the Calotrichaceae (Nostocales, Cyanobacteria). Journal of phycology (2022)
Nicole Pietrasiak, Sharon Reeve, Karina Osorio-Santos, David A Lipson, Jeffrey R Johansen
Trichotorquatus gen. nov. - a new genus of soil cyanobacteria discovered from American drylands1. Journal of phycology 57 (3) (2021)
Jeffrey R Johansen, Laura González-Resendiz, Viviana Escobar-Sánchez, Claudia Segal-Kischinevzky, José A Martínez Yerena, Joaquín Hernández-Sánchez, Gabriela Hernández-Pérez, Hilda León-Tejera
When will taxonomic saturation be achieved? A case study in Nunduva and Kyrtuthrix (Rivulariaceae, Cyanobacteria). Journal of phycology 57 (6) (2021)
Dale A Casamatta, Chelsea D Villanueva, Alyssa D Garvey, Holly S Stocks, Melissa Vaccarino, Petr Dvořák, Petr Hašler, Jeffrey R Johansen
Reptodigitus Chapmanii (Nostocales, Hapalosiphonaceae) Gen. Nov.: A Unique Nostocalean (Cyanobacteria) Genus Based on a Polyphasic Approach1. Journal of phycology 56 (2) (2020)
Laura González-Resendiz, Jeffrey R Johansen, Hilda León-Tejera, León Sánchez, Claudia Segal-Kischinevzky, Viviana Escobar-Sánchez, Marcia Morales
A bridge too far in naming species: a total evidence approach does not support recognition of four species in Desertifilum (Cyanobacteria). Journal of phycology 55 (4) (2019)
Nicole Pietrasiak, Karina Osorio-Santos, Sergei Shalygin, Michael P Martin, Jeffrey R Johansen
When Is A Lineage A Species? A Case Study In Myxacorys gen. nov. (Synechococcales: Cyanobacteria) With The Description of Two New Species From The Americas. Journal of phycology 55 (5) (2019)
Jan Mareš, Jeffrey R Johansen, Tomáš Hauer, Jan Zima, Stefano Ventura, Oana Cuzman, Bruno Tiribilli, Jan Kaštovský
Taxonomic resolution of the genus Cyanothece (Chroococcales, Cyanobacteria), with a treatment on Gloeothece and three new genera, Crocosphaera, Rippkaea, and Zehria. Journal of phycology 55 (3) (2019)
Laura González-Resendiz, Jeffrey R Johansen, Viviana Escobar-Sánchez, Claudia Segal-Kischinevzky, Luis F Jiménez-García, Hilda León-Tejera
Two new species of Phyllonema (Rivulariaceae, Cyanobacteria) with an emendation of the genus. Journal of phycology 54 (5) (2018)
Jeffrey R Johansen, Jan Mareš, Nicole Pietrasiak, Markéta Bohunická, Jan Zima, Lenka Štenclová, Tomáš Hauer
Highly divergent 16S rRNA sequences in ribosomal operons of Scytonema hyalinum (Cyanobacteria). PloS one 12 (10) (2017)

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Publication Activity (10 Years)

Top Topics

Top Venues

Jeffrey R Johansen