2026 Ralph L. Nicholson: Plant Science and Agronomy Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	National Ranking	Publications	Citations
Plant Science and Agronomy	46	2662	658	115	9336

Discipline name

D-Index

World Ranking

National Ranking

Publications

Citations

Plant Science and Agronomy

2662

658

115

9336

Research.com Recognitions

1993 - Fellow of the American Phytopathological Society

Best Publications

Phenolic Compounds and Their Role in Disease Resistance

R. L. Nicholson;R. Hammerschmidt

1909
Citations
Isolation and Identification of Phenolic Compounds

Wilfred Vermerris;Ralph Nicholson

652
Citations
Phenylalanine ammonia-lyase and hydroxycinnamate: CoA ligase in maize mesocotyls inoculated with Helminthosporium maydis or Helminthosporium carbonum

D.P. Dickerson;S.F. Pascholati;Ann E. Hagerman;L.G. Butler

509
Citations
Synthesis of Phytoalexins in Sorghum as a Site-Specific Response to Fungal Ingress

Unknown

471
Citations
Adhesion Pad Formation and the Involvement of Cutinase and Esterases in the Attachment of Uredospores to the Host Cuticle.

Holger Deising;Ralph L. Nicholson;Marc Haug;Richard J. Howard

257
Citations
Adhesion of Fungi to the Plant Surface

Ralph L. Nicholson;Lynn Epstein

245
Citations
The Biology of Corn Anthracnose: Knowledge to Exploit for Improved Management.

Gary C. Bergstrom;Ralph L. Nicholson

224
Citations
Reduction of light-induced anthocyanin accumulation in inoculated sorghum mesocotyls : Implications for a compensatory role in the defense response

Unknown

210
Citations
Accumulation of 3-deoxyanthocyanidin phytoalexins and resistance to Colletotrichum sublineolum in sorghum

Unknown

206
Citations
Phytoalexin synthesis by the sorghum mesocotyl in response to infection by pathogenic and nonpathogenic fungi

Ralph L. Nicholson;Sharon S. Kollipara;Jeffrey R. Vincent;Philip C. Lyons

188
Citations
Mycosporine-alanine: A self-inhibitor of germination from the conidial mucilage ofColletotrichum graminicola

Unknown

146
Citations
cDNA cloning of a sorghum pathogenesis-related protein (PR-10) and differential expression of defense-related genes following inoculation with Cochliobolus heterostrophus or Colletotrichum sublineolum.

Unknown

146
Citations
A Stilbene Synthase Gene (SbSTS1) Is Involved in Host and Nonhost Defense Responses in Sorghum

Christine K.Y. Yu;Karin Springob;Jürgen Schmidt;Ralph L. Nicholson

141
Citations
Preparation of the infection court by Erysiphe graminis: Degradation of the host cuticle

Hitoshi Kunoh;Ralph L. Nicholson;Hirofumi Yosioka;Naoto Yamaoka

136
Citations
Families of Phenolic Compounds and Means of Classification

Wilfred Vermerris;Ralph Nicholson

136
Citations
Accumulation of sorghum phytoalexins induced by Colletotrichum graminicola at the infection site

Beth A. Snyder;Breno Leite;John Hipskind;Larry G. Butler

130
Citations
Preparation of the infection court by Erysiphe graminis f. sp. hordei : cutinase is a component of the conidial exudate

Sérgio F. Pascholati;Hirofumi Yoshioka;Hitoshi Kunoh;Ralph L. Nicholson

127
Citations
Preparation of the infection court by Erysiphe graminis: II. Release of esterase enzyme from conidia in response to a contact stimulus.

Ralph L. Nicholson;Hirofumi Yoshioka;Naoto Yamaoka;Hitoshi Kunoh

124
Citations
A survey of plant defense responses to pathogens.

R. Hammerschmidt;R. L. Nicholson;A. A. Agrawal;S. Tuzun

121
Citations
First touch: An immediate response to surface recognition in conidia of Blumeria graminis

Kirsten A. Nielsen;Ralph L. Nicholson;Tim L.W. Carver;Hitoshi Kunoh

121
Citations