Gary E. Harman

18.4k total citations · 7 hit papers
130 papers, 12.8k citations indexed

About

Gary E. Harman is a scholar working on Plant Science, Molecular Biology and Cell Biology. According to data from OpenAlex, Gary E. Harman has authored 130 papers receiving a total of 12.8k indexed citations (citations by other indexed papers that have themselves been cited), including 97 papers in Plant Science, 45 papers in Molecular Biology and 29 papers in Cell Biology. Recurrent topics in Gary E. Harman's work include Plant-Microbe Interactions and Immunity (47 papers), Plant Pathogens and Fungal Diseases (29 papers) and Nematode management and characterization studies (22 papers). Gary E. Harman is often cited by papers focused on Plant-Microbe Interactions and Immunity (47 papers), Plant Pathogens and Fungal Diseases (29 papers) and Nematode management and characterization studies (22 papers). Gary E. Harman collaborates with scholars based in United States, Italy and Israel. Gary E. Harman's co-authors include Matteo Lorito, I. Chet, Ada Viterbo, Charles R. Howell, Michal Shoresh, Fatemeh Mastouri, Thomas Björkman, Christian P. Kubicek, Alan G. Taylor and Sheridan L. Woo and has published in prestigious journals such as Nature, Proceedings of the National Academy of Sciences and Applied and Environmental Microbiology.

In The Last Decade

Gary E. Harman

129 papers receiving 11.5k citations

Hit Papers

5 papers align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Trichoderma species — opportunistic, avirulent plant symbionts

2004 2.7k citations Gary E. Harman, Matteo Lorito et al. profile →
Induced Systemic Resistance and Plant Responses to Fungal Biocontrol Agents

2010 888 citations Michal Shoresh, Gary E. Harman et al. profile →
Overview of Mechanisms and Uses of Trichoderma spp.

2006 776 citations Gary E. Harman profile →
Myths and Dogmas of Biocontrol Changes in Perceptions Derived from Research on Trichoderma harzinum T-22

2000 688 citations Gary E. Harman profile →
Solubilization of Phosphates and Micronutrients by the Plant-Growth-Promoting and Biocontrol Fungus Trichoderma harzianum Rifai 1295-22

1999 501 citations Thomas Björkman, Gary E. Harman et al. Applied and Environmental Microbiology profile →
Benefits to Plant Health and Productivity From Enhancing Plant Microbial Symbionts

2021 151 citations Gary E. Harman et al. profile →
Trichoderma hamatumEffects on Seed and Seedling Disease Induced in Radish and Pea byPythiumspp. orRhizoctonia solani

1980 95 citations Gary E. Harman profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Gary E. Harman United States	51	10.8k	3.6k	3.5k	1.0k	887	130	12.8k
Matteo Lorito Italy	61	11.3k 1.0×	4.3k 1.2×	3.6k 1.0×	1.3k 1.2×	1.4k 1.6×	159	14.0k
Joseph W. Kloepper United States	73	20.9k 1.9×	4.5k 1.3×	3.2k 0.9×	1.1k 1.1×	490 0.6×	221	23.5k
Yigal Elad Israel	63	10.8k 1.0×	2.1k 0.6×	4.2k 1.2×	756 0.7×	510 0.6×	237	13.1k
David M. Weller United States	55	12.8k 1.2×	2.9k 0.8×	2.9k 0.8×	576 0.6×	664 0.7×	139	14.7k
John M. Whipps United Kingdom	47	7.6k 0.7×	1.6k 0.4×	2.4k 0.7×	642 0.6×	610 0.7×	174	9.3k
Linda S. Thomashow United States	57	8.4k 0.8×	4.1k 1.2×	1.7k 0.5×	460 0.4×	970 1.1×	138	12.1k
Christophe Clément France	57	9.1k 0.8×	4.6k 1.3×	2.4k 0.7×	432 0.4×	949 1.1×	175	12.8k
K. Sivasithamparam Australia	51	8.7k 0.8×	2.0k 0.6×	3.0k 0.9×	514 0.5×	1.0k 1.2×	325	10.5k
Choong‐Min Ryu South Korea	61	11.9k 1.1×	4.1k 1.1×	1.5k 0.4×	935 0.9×	394 0.4×	227	14.9k
Enrique Monte Spain	50	6.0k 0.6×	2.4k 0.7×	2.2k 0.6×	605 0.6×	855 1.0×	135	7.7k

Countries citing papers authored by Gary E. Harman

Since Specialization

Citations

This map shows the geographic impact of Gary E. Harman's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Gary E. Harman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Gary E. Harman more than expected).

Fields of papers citing papers by Gary E. Harman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Gary E. Harman. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Gary E. Harman. The network helps show where Gary E. Harman may publish in the future.

Co-authorship network of co-authors of Gary E. Harman

This figure shows the co-authorship network connecting the top 25 collaborators of Gary E. Harman. A scholar is included among the top collaborators of Gary E. Harman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Gary E. Harman. Gary E. Harman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Harman, Gary E.. (2024). Integrated Benefits to Agriculture with Trichoderma and Other Endophytic or Root-Associated Microbes. Microorganisms. 12(7). 1409–1409. 4 indexed citations

Shoresh, Michal & Gary E. Harman. (2010). Differential expression of maize chitinases in the presence or absence of Trichoderma harzianum strain T22 and indications of a novel exo- endo-heterodimeric chitinase activity. BMC Plant Biology. 10(1). 136–136. 36 indexed citations

Harman, Gary E., et al.. (2007). ORIGINAL RESEARCH: Removal of heavy metals from polluted waters using lignocellulosic agricultural waste products. Industrial Biotechnology. 3(4). 366–374. 14 indexed citations

Deng, Shiping, Matteo Lorito, Merja Penttilä, & Gary E. Harman. (2007). Overexpression of an Endochitinase Gene (ThEn-42) in Trichoderma atroviride for Increased Production of Antifungal Enzymes and Enhanced Antagonist Action Against Pathogenic Fungi. Applied Biochemistry and Biotechnology. 142(1). 81–94. 26 indexed citations

Harman, Gary E., Matteo Lorito, & J. M. Lynch. (2004). Uses of Trichoderma spp. to Alleviate or Remediate Soil and Water Pollution. Advances in applied microbiology. 56. 313–330. 94 indexed citations

Björkman, Thomas, Lisa Blanchard, & Gary E. Harman. (1998). Growth Enhancement of shrunken-2 (sh2) Sweet Corn by Trichoderma harzianum 1295-22: Effect of Environmental Stress. Journal of the American Society for Horticultural Science. 123(1). 35–40. 89 indexed citations

Harman, Gary E. & C. P. Kubicek. (1998). Enzymes, biological control and commercial applications. Taylor & Francis eBooks. 94 indexed citations

Bolar, Jyothi Prakash, et al.. (1997). Genetic engineering of apple for improved disease resistance and horticultural quality. 15(2). 7–11. 2 indexed citations

Klemsdal, Sonja S., Chris Hayes, Linda Gordon Hjeljord, et al.. (1996). Isolation and characterization of a cDNA from Trichoderma harzianum P1 encoding a 14-3-3 protein homolog. Gene. 171(1). 123–127. 8 indexed citations

10.

Broadway, Roxanne M., David L. Williams, Wendy Kain, et al.. (1995). Partial characterization of chitinolytic enzymes from Streptomyces albidoflavus. Letters in Applied Microbiology. 20(5). 271–276. 29 indexed citations

11.

Lorito, Matteo, Chris Hayes, A. Zoina, et al.. (1994). Potential of genes and gene products fromTrichoderma sp. andGliocladium sp. for the development of biological pesticides. Molecular Biotechnology. 2(3). 209–217. 18 indexed citations

12.

Lorito, Matteo, C. K. Hayes, Inci Arisan-Atac, et al.. (1994). Parallel formation and synergism of hydrolytic enzymes and peptaibol antibiotics, molecular mechanisms involved in the antagonistic action of Trichoderma harzianum against phytopathogenic fungi. Applied and Environmental Microbiology. 60(12). 4364–4370. 336 indexed citations

13.

Björkman, Thomas, et al.. (1994). 287 IMPROVED PERFORMANCE OF SHRUNKEN-2 SWEET CORN USING TRICHODERM HARZIANUM AS A BIOPROTECTANT. HortScience. 29(5). 471b–471. 5 indexed citations

14.

Sivan, A., T. E. Stasz, M. Hemmat, C. K. Hayes, & Gary E. Harman. (1992). Transformation ofTrichodermaSpp. With Plasmids Conferring Hygromycin B Resistance. Mycologia. 84(5). 687–694. 17 indexed citations

15.

Harman, Gary E.. (1992). Development and benefits of rhizosphere competent fungi for biological control of plant pathogens. Journal of Plant Nutrition. 15(6-7). 835–843. 28 indexed citations

16.

Stasz, T. E., Gary E. Harman, & N. F. Weeden. (1988). Protoplast Preparation and Fusion in Two Biocontrol Strains ofTrichoderma Harzianum. Mycologia. 80(2). 141–150. 75 indexed citations

17.

Harman, Gary E. & T. E. Stasz. (1988). Fluorescent Vital Stains for Complementary Labelling of Protoplasts from Trichoderma Spp. Stain Technology. 63(4). 241–247. 11 indexed citations

18.

Hadar, Yitzhak, et al.. (1985). Influence ofpresowing seed treatments of table beets on the susceptibility to damping off caused byPythium. Journal of the American Society for Horticultural Science. 110. 516–519. 15 indexed citations

19.

Taylor, Alan G., et al.. (1985). Influence of Presowing Seed Treatments of Table Beets on the Susceptibility to Damping-off Caused by Pythium. Journal of the American Society for Horticultural Science. 110(4). 516–519. 11 indexed citations

20.

Khan, Anwar A., et al.. (1974). Practical Significance of the Application of Chemicals in Organic Solvents to Dry Seeds1. Journal of the American Society for Horticultural Science. 99(3). 217–220. 13 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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