Charles R. Howell

5.4k total citations · 1 hit paper
22 papers, 3.7k citations indexed

About

Charles R. Howell is a scholar working on Plant Science, Molecular Biology and Insect Science. According to data from OpenAlex, Charles R. Howell has authored 22 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 15 papers in Plant Science, 7 papers in Molecular Biology and 3 papers in Insect Science. Recurrent topics in Charles R. Howell's work include Research in Cotton Cultivation (7 papers), Plant-Microbe Interactions and Immunity (7 papers) and Mycorrhizal Fungi and Plant Interactions (2 papers). Charles R. Howell is often cited by papers focused on Research in Cotton Cultivation (7 papers), Plant-Microbe Interactions and Immunity (7 papers) and Mycorrhizal Fungi and Plant Interactions (2 papers). Charles R. Howell collaborates with scholars based in United States, Egypt and Switzerland. Charles R. Howell's co-authors include I. Chet, Ada Viterbo, Matteo Lorito, Gary E. Harman, Robert D. Stipanovic, Charles M. Kenerley, Marı́a J. Pozo, Slavica Djonović, Lawrence J. Dangott and Alois A. Bell and has published in prestigious journals such as Nature Reviews Microbiology, Journal of Agricultural and Food Chemistry and Soil Biology and Biochemistry.

In The Last Decade

Charles R. Howell

21 papers receiving 3.4k citations

Hit Papers

1 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, Charles R. Howell et al. Nature Reviews Microbiology profile →

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Charles R. Howell United States	16	3.2k	1.1k	961	389	247	22	3.7k
Ada Viterbo Israel	24	5.0k 1.6×	1.5k 1.4×	1.6k 1.7×	495 1.3×	355 1.4×	34	5.7k
Suha Jabaji Canada	33	2.8k 0.9×	749 0.7×	780 0.8×	321 0.8×	95 0.4×	105	3.6k
Prasun K. Mukherjee India	31	3.1k 1.0×	1.0k 0.9×	1.4k 1.4×	602 1.5×	128 0.5×	73	3.9k
Charles M. Kenerley United States	34	3.9k 1.2×	1.2k 1.1×	1.8k 1.9×	625 1.6×	99 0.4×	89	4.8k
Michelina Ruocco Italy	28	2.6k 0.8×	806 0.7×	814 0.8×	251 0.6×	168 0.7×	76	3.2k
Roberta Marra Italy	28	3.2k 1.0×	1.1k 1.0×	823 0.9×	548 1.4×	318 1.3×	57	4.0k
Pablo R. Hardoim Netherlands	13	3.2k 1.0×	1.0k 0.9×	988 1.0×	328 0.8×	141 0.6×	15	3.9k
Dilip K. Arora India	30	2.0k 0.6×	564 0.5×	726 0.8×	238 0.6×	87 0.4×	73	2.7k
Russell J. Tweddell Canada	27	1.8k 0.6×	595 0.5×	566 0.6×	256 0.7×	209 0.8×	74	2.5k
Leonard S. van Overbeek Netherlands	15	2.2k 0.7×	814 0.7×	642 0.7×	262 0.7×	151 0.6×	22	2.9k

Countries citing papers authored by Charles R. Howell

Since Specialization

Citations

This map shows the geographic impact of Charles R. Howell'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 Charles R. Howell with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Charles R. Howell more than expected).

Fields of papers citing papers by Charles R. Howell

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Charles R. Howell. 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 Charles R. Howell. The network helps show where Charles R. Howell may publish in the future.

Co-authorship network of co-authors of Charles R. Howell

This figure shows the co-authorship network connecting the top 25 collaborators of Charles R. Howell. A scholar is included among the top collaborators of Charles R. Howell 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 Charles R. Howell. Charles R. Howell 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

Howell, Charles R.. (2007). Effect of Seed Quality and Combination Fungicide-Trichoderma spp. Seed Treatments on Pre- and Postemergence Damping-Off in Cotton. Phytopathology. 97(1). 66–71. 25 indexed citations

Djonović, Slavica, Marı́a J. Pozo, Lawrence J. Dangott, Charles R. Howell, & Charles M. Kenerley. (2006). Sm1, a Proteinaceous Elicitor Secreted by the Biocontrol Fungus Trichoderma virens Induces Plant Defense Responses and Systemic Resistance. Molecular Plant-Microbe Interactions. 19(8). 838–853. 234 indexed citations

Harman, Gary E., Charles R. Howell, Ada Viterbo, I. Chet, & Matteo Lorito. (2004). Trichoderma species — opportunistic, avirulent plant symbionts. Nature Reviews Microbiology. 2(1). 43–56. 2707 indexed citations breakdown →

Puckhaber, Lorraine S., Michael K. Dowd, Robert D. Stipanovic, & Charles R. Howell. (2002). Toxicity of (+)- and (−)-Gossypol to the Plant Pathogen, Rhizoctonia solani. Journal of Agricultural and Food Chemistry. 50(24). 7017–7021. 50 indexed citations

Hanson, Linda E. & Charles R. Howell. (2002). Biocontrol efficacy and other characteristics of protoplast fusants between Trichoderma koningii and T. virens. Mycological Research. 106(3). 321–328. 22 indexed citations

Baek, Jong‐Min, Charles R. Howell, & Charles M. Kenerley. (1999). The role of an extracellular chitinase from Trichoderma virens Gv29-8 in the biocontrol of Rhizoctonia solani. Current Genetics. 35(1). 41–50. 138 indexed citations

Howell, Charles R.. (1999). Selective isolation from soil and separation in vitro of P and Q strains of Trichoderma virens with differential media. Mycologia. 91(6). 930–934. 12 indexed citations

Howell, Charles R.. (1999). Selective Isolation from Soil and Separation in Vitro of P and Q Strains of Trichoderma virens with Differential Media. Mycologia. 91(6). 930–930. 6 indexed citations

Howell, Charles R., et al.. (1997). Field Control of Cotton Seedling Diseases with Trichoderma virens in Combination with Fungicide Seed Treatments. The journal of cotton science/Journal of cotton science. 33 indexed citations

10.

Stipanovic, Robert D., Charles R. Howell, & Paul A. Hedin. (1994). Biosynthesis of gliovirin: Incorporation of L-phenylalanine (1-13C).. The Journal of Antibiotics. 47(8). 942–944. 15 indexed citations

11.

Altman, David W., Paul A. Fryxell, Stephen D. Koch, & Charles R. Howell. (1990). Gossypium Germplasm conservation augmented by tissue culture techniques for field collecting. Economic Botany. 44(1). 106–113. 7 indexed citations

12.

Nakayama, Noboru, Chikara Miyamoto, TAMOTSU FURUMAI, et al.. (1984). Structure of FA-2097, a new member of the dioxopiperazine antibiotics.. The Journal of Antibiotics. 37(6). 667–669. 20 indexed citations

13.

Howell, Charles R., et al.. (1983). Production of phenolic metabolites by a soil pseudomonad. Soil Biology and Biochemistry. 15(4). 491–492. 6 indexed citations

14.

Howell, Charles R. & Robert D. Stipanovic. (1983). Gliovirin, a new antibiotic from Gliocladium virens, and its role in the biological control of Pythium ultimum. Canadian Journal of Microbiology. 29(3). 321–324. 115 indexed citations

15.

Stipanovic, Robert D. & Charles R. Howell. (1982). The structure of gliovirin, a new antibiotic from Gliocladium virens.. The Journal of Antibiotics. 35(10). 1326–1330. 62 indexed citations

16.

Stipanovic, Robert D., Alois A. Bell, M. E. Mace, & Charles R. Howell. (1975). Antimicrobial terpenoids of Gossypium: 6-methoxygossypol and 6,6′-dimethoxygossypol. Phytochemistry. 14(4). 1077–1081. 60 indexed citations

17.

Stipanovic, Robert D., Alois A. Bell, & Charles R. Howell. (1975). Naphthofuran precursors of sesquiterpenoid aldehydes in diseased Gossypium. Phytochemistry. 14(8). 1809–1811. 32 indexed citations

18.

Bell, Alois A., Robert D. Stipanovic, Charles R. Howell, & Paul A. Fryxell. (1975). Antimicrobial terpenoids of Gossypium: Hemigossypol, 6-methoxyhemigossypol and 6-deoxyhemigossypol. Phytochemistry. 14(1). 225–231. 78 indexed citations

19.

Howell, Charles R., Alois A. Bell, & Robert D. Stipanovic. (1973). Virulence to cotton and tolerance to sanguinarine among Verticillium species. Canadian Journal of Microbiology. 19(11). 1367–1371. 5 indexed citations

20.

Howell, Charles R.. (1953). A National Arts Program. Educational Theatre Journal. 5(3). 259–259. 1 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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