World's Best Scientists 2026 revealed!
Richard D. Johnson

Richard D. Johnson

D-Index & Metrics

Plant Science and Agronomy

D-Index
34
Citations
4788
World Ranking
5360
National Ranking
56

Best Publications

  • Plant-Symbiotic Fungi as Chemical Engineers: Multi-Genome Analysis of the Clavicipitaceae Reveals Dynamics of Alkaloid Loci

    Christopher L. Schardl;Carolyn A. Young;Uljana Hesse;Stefan G. Amyotte

  • The exploitation of epichloae endophytes for agricultural benefit

    Linda J. Johnson;Anouck C. M. de Bonth;Lyn R. Briggs;John R. Caradus

  • Epichloë endophytes grow by intercalary hyphal extension in elongating grass leaves.

    Michael J. Christensen;Raymond J. Bennett;Helal A. Ansari;Hironori Koga

  • High nitrogen supply and carbohydrate content reduce fungal endophyte and alkaloid concentration in Lolium perenne

    Susanne Rasmussen;Anthony J. Parsons;Shalome Bassett;Michael J. Christensen

  • Elimination of ergovaline from a grass-Neotyphodium endophyte symbiosis by genetic modification of the endophyte.

    Daniel G. Panaccione;Richard D. Johnson;Jinghong Wang;Carolyn A. Young

  • A complex gene cluster for indole-diterpene biosynthesis in the grass endophyte Neotyphodium lolii

    Carolyn A. Young;Silvina Felitti;Katherine Shields;German Spangenberg

  • Cloning and characterization of a cyclic peptide synthetase gene from Alternaria alternata apple pathotype whose product is involved in AM-toxin synthesis and pathogenicity.

    Unknown

  • A complex ergovaline gene cluster in epichloe endophytes of grasses.

    Damien J. Fleetwood;Damien J. Fleetwood;Barry Scott;Geoffrey A. Lane;Aiko Tanaka

  • MOLECULAR KARYOTYPES FOR ALTERNARIA PLANT PATHOGENS KNOWN TO PRODUCE HOST-SPECIFIC TOXINS

    Unknown

  • Spontaneous loss of a conditionally dispensable chromosome from the Alternaria alternata apple pathotype leads to loss of toxin production and pathogenicity.

    Unknown

  • An Extracellular Siderophore Is Required to Maintain the Mutualistic Interaction of Epichloë festucae with Lolium perenne

    Linda J. Johnson;Albert Koulman;Michael Christensen;Geoffrey A. Lane

  • A polymerase chain reaction-based method to specifically detect Alternaria alternata apple pathotype (A. mali), the causal agent of Alternaria blotch of apple.

    Unknown

  • Integrative transformation of the mycotoxin-producing fungus, Penicillium paxilli

    Yasuo Itoh;Richard Johnson;Barry Scott

  • A morphological change in the fungal symbiont Neotyphodium lolii induces dwarfing in its host plant Lolium perenne

    Unknown

  • Identification of differentially expressed genes in the mutualistic association of tall fescue with Neotyphodium coenophialum

    Linda J Johnson;Richard D Johnson;Christopher L Schardl;Daniel G Panaccione

  • Beneficial endophytic microorganisms of Brassica – A review

    Unknown

  • Gene-Based Sequence Diversity Analysis of Field Pea (Pisum)

    Unknown

  • Paxilline-negative mutants of Penicillium paxilli generated by heterologous and homologous plasmid integration

    Carolyn Young;Yasuo Itoh;R. Johnson;I. Garthwaite

  • Seed Transmission of Epichloë Endophytes in Lolium perenne Is Heavily Influenced by Host Genetics

    Unknown

  • Variation in host range, systemic infection and epidemiology of <i>Leptosphaeria maculans</i>

    Unknown

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