María del Mar Jiménez Gasco, Ph.D.

María del Mar Jiménez Gasco, Ph.D.

  • Associate Professor
  • Coordinator and Adviser of the Minor in Plant Pathology
309 Buckhout Lab (office)
402/403 Buckhout Lab (labs)

University Park, PA 16802

Areas of Expertise

  • Population biology
  • Ecology of plant-associated microorganisms
  • Fusarium and Verticillium wilts

Education

  • M.Eng. 1997. Agricultural Sciences, College of Agricultural Engineering, University of Cordoba, Spain
  • Ph.D. 2001. Crop Protection, Institute for Sustainable Agriculture (IAS-CSIC) and University of Cordoba, Spain

Areas of Interest

Population biology of plant pathogens; Evolution of pathogenicity and virulence; Ecology of plant-associated microorganisms; Endophytic interactions; Vascular wilt fungi; Antifungal materials

Program Interests

I am fundamentally interested in the population-level processes that lead to the evolution of plant pathogenicity, virulence, and the emergence of fungicide and antibiotic resistance in microbial populations. In my lab we use molecular tools to study these processes within a population biology approach that connects population genetics and epidemiology. Research projects in my program currently focus on:

  • The ecological interactions between Fusarium oxysporum and plants, specifically non-pathogenic, endophytic interactions and their role in the emergence and evolution of plant pathogenicity. We are currently studying populations of F. oxysporum f.sp. cubense causing Panama disease of banana in Ecuador, endophytes from banana and chickpeas, and populations sampled from tomato fields.

  • The dual role of Verticillium dahliae, pathogenic on certain plants and endophytic on others, and the implications on the biology, ecology, persistence, and spread of this plant pathogenic fungus in agroecosystems. We are currently studying the effect of rotations in the development of Verticillium wilt of potato.

  • The development of resistance to chemicals used for disease management in agroecosystems. We are specifically studying changes in bacterial populations of the pathogen Xanthomonas arboricola pv. pruni  causing bacterial leaf spot of peach in PA, as a result of repeated use of the antibiotic oxytetracycline.

Research Team

Recent Publications

Magdama, F., Monserrate-Maggi, L., Serrano, L., Garcia-Onofre, J., and Jiménez-Gasco, M. M. 2020. Genetic diversity of Fusarium oxysporum f. sp. cubense, the Fusarium wilt pathogen of banana, in Ecuador. Plants 9: 1133. https://doi.org/10.3390/plants9091133.

Ahmad, I., Jiménez-Gasco, M.M., Luthe, D.S., and Barbercheck, M.E. 2020. Systemic colonization by Metarhizium robertsii enhances cover crop growth. Journal of Fungi 6, 64: 1-16. https://doi.org/10.3390/jof6020064.

Ahmad, I., Jiménez-Gasco, M.M., Luthe, D.S., Shakeel, S.N., and Barbercheck, M.E. 2020. Endophytic Metarhizium robertsii promotes maize growth, suppresses insect growth, and alters plant defense gene expression. Biological Control 144: 104167. https://doi.org/10.1016/j.biocontrol.2019.104167.

Magdama, F., Monserrate-Maggi, L., Serrano, L., Sosa, D., Geiser., D.M., and Jiménez-Gasco, M.M. 2019. Comparative analysis uncovers the limitations of current molecular detection methods for Fusarium oxysporum f. sp. cubense race 4 strains. PLoS ONE 14(9): e0222727. https://doi.org/ 10.1371/journal.pone.0222727.

Aynardi, B.A., Jiménez-Gasco, M.M. and Uddin, W. 2019. Effects of Type I and Type II isolates of Clarireedia spp. on severity of dollar spot in turfgrasses by host type.  European Journal of Plant Pathology 155: 817-829. https://doi.org/10.1007/s10658-019-01813-z.

Bell, T.H., Hockett, K.L., Alcalá-Briseño, R.I., Barbercheck, M., Beattie, G.A., Bruns, M.A., Carlson, J.E., Chung, T., Collins, A., Emmet, B., Esker, P., Garrett, K.A., Glenna, L., Gugino, B., Jiménez-Gasco, M.M., Kinkel, L., Kovac, J., Kowalski, K.P., Kuldau, G., Leveau, J.H., Michalska-Smith, M.J., Myrick, J,. Peter, K., Shade, A., Stopnisek, N., Tan, X., Welty, A.T., Wickings, K., and Yergeau, E. 2019. Manipulating Wild and Tamed Phytobiomes: Challenges and Opportunities. Phytobiomes Journal 3: 3-21.

Rafiei, V., Banihashemi, Z., Bautista-Jalon, L.S., Jiménez-Gasco, M.M., Turgeon, B.G., and Milgroom, M.G. 2018. Genetic relationships among populations of Verticillium dahliae from cotton and pistachio in Iran using microsatellite markers and genotyping by sequencing. Phytopathology 108: 780-788.

Sitther, V., Garrido Haro, P.A., Molineros, J. E., Garzón, C.D, and Jiménez-Gasco, M.M. 2018. Genetic diversity of apple- and crabapple-infecting isolates of Venturia inaequalis in Pennsylvania, United States, determined by microsatellite markers. Forest Pathology 48:e12405.

Rafiei, V., Banihashemi, Z., Jiménez-Díaz, R.M., Navas-Cortés, J.A., Landa, B.B., Jiménez-Gasco, M.M., Turgeon, B.G., and Milgroom, M.G. 2018. Comparison of genotyping by sequencing and microsatellite markers for unravelling population structure in the clonal fungus Verticillium dahliae. Plant Pathology 67: 76-86.

Jiménez-Díaz, R.M., Olivares-García, C., Trapero-Casas, J.L., Jiménez-Gasco, M.M., Navas-Cortés, J.A., Landa., B.B., and  Milgroom, M.G. 2017. Variation of pathotypes and races and their correlations with clonal lineages in Verticillium dahliae. Plant Pathology 66: 651–666.

Milgroom, M.G., Jiménez-Gasco, M.M., Olivares-García, C., and Jiménez-Díaz, R.M. 2016. Clonal expansion and migration of a highly virulent, defoliating lineage of Verticillium dahliae. Phytopathology 106: 1038-1046.

Demers, J.E. and Jiménez-Gasco, M.M. 2016. Evolution of nine microsatellite loci in the fungus Fusarium oxysporum. Journal of Molecular Evolution 82: 27-37.

Jiménez-Díaz, R.M., Castillo, P., Jiménez-Gasco, M.M., Landa., B.B., and Navas-Cortés, J.A. 2015. Fusarium wilt of chickpeas: Biology, ecology and management. Crop Protection 73:16-27.

Guo, L., Blatt, A.Z., Geiser, D.M., Jiménez-Gasco, M.M., and Kuldau, G.A. 2015. Mating type and spore killing characterization of Fusarium verticillioides strains. Mycological Progress 14: 16.

Demers, J.E., Gugino, B.K., and Jiménez-Gasco, M.M. 2015. Highly diverse endophytic and soil Fusarium oxysporum populations associated with field-grown tomato plants. Applied and Environmental Microbiology 81: 81-90.

Milgroom, M.G., Jiménez-Gasco, M.M., Olivares-Garcia, C., Drott, M.T., and Jiménez-Díaz, R.M. 2014. Recombination between clonal lineages of the asexual fungus Verticillium dahliae detected by Genotyping by Sequencing. PloS ONE 9(9): e106740.

Demers, J.E., Garzon, C.D., and Jiménez-Gasco, M.M. 2014. Striking genetic similarity between races of Fusarium oxysporum f. sp. ciceris confirms a monophyletic origin and clonal evolution of the chickpea vascular wilt pathogen. European Journal of Plant Pathology 139: 303-318.

Jiménez-Gasco, M.M., Malcolm, G.M., Berbegal, M., Armengol, J., and Jiménez-Díaz, R.M. 2014. Complex molecular relationship between Vegetative Compatibility Groups in Verticillium dahliae: VCGs do not always align with clonal lineages. Phytopathology 104: 650-659.

Testen, A. L., Jiménez-Gasco, M.M., Ochoa, J. B., and Backman, P.A. 2014. Molecular detection of Peronospora variabilis in quinoa seeds and phylogeny of the quinoa downy mildew pathogen in South America and the United States. Phytopathology 104: 379-386.

Kang, S., Demers, J., Jiménez-Gasco, M.M., and Rep, M. 2014. Fusarium oxysporum. Chapter 5 in “Genomics of Plant-Associated Fungi and Oomycetes: Dicot Pathogens”. R. A. Dean, A. Lichens-Park, and K. Chittaranjan (Eds.). Pages 99-120. ISBN: 978-3-662-44055-1. Springer-Verlag Berlin Heidelberg.

Malcolm, G.M., Kuldau, G.A., Gugino, B.K., and Jiménez-Gasco, M.M. 2013. LETTER TO THE EDITOR: Hidden host plant associations of soilborne fungal pathogens: An ecological perspective. Phytopathology 103: 538-544.

Elmer, W.H., Useman, S., Schneider, R.W., Marra, R.E., LaMondia, J.A., Mendelssohn, I.A., Jiménez-Gasco, M.M., and Caruso, F.L. 2013. FEATURE: Sudden Vegetation Dieback in Atlantic and Gulf Coast Salt Marshes. Plant Disease 97: 436-445.

Remesal, E., Landa, B.B., Jiménez-Gasco, M.M. and Navas-Cortes, J.A. 2013. Sequence variation of protein-coding genes as a diagnostic tool for the identification of Mycelial Compatibility Groups in Sclerotium rolfsii. Phytopathology 103: 479-487.

Geiser, D.M. Aoki, T., Bacon, C.W., Baker, S.E., Bhattacharayya, M.B., Brandt, M., Burgess, L.W., Chulze, S., Coleman, J.J., Correll, J.C., Covert, S.F., Crous, P.W., Cuomo, C.A., de Hoog, G.S., Di Pietro, A., Elmer, W.H., Epstein, L., Frandsen, R.J.N., Freeman, S., Gagkaeva, T., Glenn, A.E., Gordon, T.R., Gregory, N.F., Hammond-Kosack, K.E., Hanson, L.E., Jiménez-Gasco, M.M., Kang, S., Kistler, H.C., Kuldau, G.A., Leslie, J.F., Logrieco, A., Lu, G., Lysøe, E., Ma, L., McCormick, S.P., Migheli, Q., Moretti, A., Munaut, F., O'Donnell, K., Pfenning, L.H., Ploetz, R.C., Proctor, R.H., Rehner, S.A., Robert, V.A.R.G., Rooney, A.P., Salleh, B., Scandiani, M.M., Scauflaire, J., Short, D.P.G., Steenkamp, E.T., Suga, H., Summerell, B.A., Sutton, D.A., Thrane, U., Trail, F., van Diepeningen, A., VanEtten, H.D., Viljoen, A., Waalwijk, C., Ward, T.J., Wingfield, M.J., Xu, J., Yang, X., Yli-Mattila, T., and Zhang, N. 2013. LETTER TO THE EDITOR: One Fungus, One Name: Defining the genus Fusarium in a scientifically robust way that preserves longstanding use. Phytopathology 103: 400-408.

 

 

Publications

Systemic colonization by Metarhizium robertsii enhances cover crop growth
Journal of Fungi, Ahmad, Imtiaz, Jiménez-Gasco, Maria, Luthe, Dawn, Barbercheck, Mary, 2020

Endophytic Metarhizium robertsii promotes maize growth, suppresses insect growth, and alters plant defense gene expression
Biological Control, Ahmad, Imtiaz, Jiménez-Gasco, Maria, Luthe, Dawn, Barbercheck, Mary, Shakeel, S.N., 2020

Effects of isolates of Clarireedia jacksonii and Clarireedia monteithiana on severity of dollar spot in turfgrasses by host type
European Journal of Plant Pathology, Aynardi, B. A., Jimenez Gasco, Maria Del Mar, Uddin, Wakar, 2019

Manipulating Wild and Tamed Phytobiomes: Challenges and Opportunities
Phytobiomes Journal, Bell, Terrence H, Hockett, Kevin, Alcalá-Briseño, Ricardo Ivan, Barbercheck, Mary, Beattie, Gwyn A, Bruns, Mary Ann, Carlson, John, Chung, Taejung, Collins, Alyssa, Emmett, Bryan, Esker, Paul, Garrett, karen, Glenna, Leland, Gugino, Beth K., Jimenez Gasco, Maria del Mar, Kinkel, Linda, Kovac, Jasna, Kowalski, Kurt, Kuldau, Gretchen, Leveau, Johan, Michalska-Smith, Matthew, Myrick, Jessica, Peter, Kari, Salazar, Maria Vivanco, Shade, Ashley, Stopnisek, Nejc, Tan, Xiaoqing, Welty, Amy, Wickings, Kyle, Yergeau, Etienne, 2019

Comparative analysis uncovers the limitations of current molecular detection methods for Fusarium oxysporum f. Sp. Cubense Race 4 strains
PloS one, Magdama, Freddy, Monserrate-Maggi, Lorena, Serrano, Lizette, Sosa, Daynet, Geiser, David M., Jiménez-Gasco, María del Mar, 2019

Population genetics of verticillium dahliae in Iran based on microsatellite and single nucleotide polymorphism markers
PHYTOPATHOLOGY, Rafiei, Vahideh, Banihashemi, Ziaeddin, Bautista-Jalon, Laura S., del Mar Jiménez-Gasco, Maria, Gillian Turgeon, B., Milgroom, Michael G., 2018

Genetic diversity of apple- and crabapple-infecting isolates of Venturia inaequalis in Pennsylvania, the United States, determined by microsatellite markers
Forest Pathology, Sitther, V., Garrido Haro, P. A., Molineros, J. E., Garzon, C. D., Jimenez Gasco, Maria Del Mar, 2018

Comparison of genotyping by sequencing and microsatellite markers for unravelling population structure in the clonal fungus Verticillium dahliae
Plant Pathology, Rafiei, V., Banihashemi, Z., Jiménez-Díaz, R. M., Navas-Cortés, J. A., Landa, B. B., Jiménez-Gasco, M. M., Turgeon, B. G., Milgroom, M. G., 2018

Variation of pathotypes and races and their correlations with clonal lineages in Verticillium dahliae
Plant Pathology, Jiménez-Díaz, R. M., Olivares-García, C., Trapero-Casas, J. L., Jiménez-Gasco, M. M., Navas-Cortés, J. A., Landa, B. B., Milgroom, M. G., 2017

Examining factors in the development of adaptive resistance to oxytetracylcine in Xanthomonas arboricola pv pruni, causal agent of bacterial spot of stone fruit
Pennsylvania Fruit News, Bardsley, S, Peter, K, Jiménez-Gasco, Maria, 2017

Clonal expansion and migration of a highly virulent, defoliating lineage of Verticillium dahliae
PHYTOPATHOLOGY, Milgroom, Michael G., Jimenez Gasco, Maria Del Mar, Olivares-García, Concepción, Jiménez-Díaz, Rafael M., 2016

Evolution of Nine Microsatellite Loci in the Fungus Fusarium oxysporum
Journal Of Molecular Evolution, Demers, Jill E., Jiménez-Gasco, María del Mar, 2016

Evaluation of alternative chemicals for bacterial spot management and mitigation of the risk of antibiotic resistance development in Pennsylvania stone fruit orchards
Pennsylvania Fruit News, Bardsley, S, Peter, K, Jiménez-Gasco, Maria, 2016

Highly diverse endophytic and soil Fusarium oxysporum populations associated with field-grown tomato plants
Applied and environmental microbiology, Demers, Jill E., Gugino, Beth K., Jiménez-Gasco, María del Mar, 2015

Mating type and spore killing characterization of Fusarium verticillioides strains
Mycological Progress, Guo, Li, Blatt, Adam Z., Geiser, David Michael, Jimenez Gasco, Maria Del Mar, Kuldau, Gretchen Anna, 2015

Evaluation of alternative chemicals for bacterial spot management and mitigation of the risk of antibiotic resistance development in Pennsylvania stone fruit orchards
Pennsylvania Fruit News, Bardsley, S, Peter, K, Jiménez-Gasco, Maria, 2015

Fusarium Wilt of Chickpeas: Biology, Ecology and Management
Crop Protection, Jiménez‐Díaz, R, Castillo, P, Jiménez-Gasco, Maria, Landa del Castillo, B, Navas‐Cortés, J, 2015

Striking genetic similarity between races of Fusarium oxysporum f. sp. ciceris confirms a monophyletic origin and clonal evolution of the chickpea vascular wilt pathogen
European Journal of Plant Pathology, Demers, Jill E., Garzón, Carla D., Jimenez Gasco, Maria Del Mar, 2014

Recombination between clonal lineages of the asexual fungus Verticillium dahliae detected by genotyping by sequencing
PLoS One, Milgroom, Michael G., Jimenez Gasco, Maria Del Mar, Olivares-García, Concepción, Drott, Milton T., Jiménez-D́iaz, Rafael M., 2014

Molecular detection of Peronospora variabilis in quinoa seed and phylogeny of the quinoa downy mildew pathogen in South America and the United States
PHYTOPATHOLOGY, Testen, Anna L., Jimenez Gasco, Maria Del Mar, Ochoa, José B., Backman, Paul A., 2014

Development of antibiotic resistance in bacterial spot of peach and nectarine: Comparing populations of epiphytic bacteria in Pennsylvania’s organic and conventional stone fruit orchards as it relates to bacterial spot management
Pennsylvania Fruit News, Bardsley, S, Jimenez Gasco, Maria, 2014

Evaluating the risk of bacterial spot resistance to the antibiotic oxytetracycline
Facts for Fancy Fruits, Bardsley, S, Jimenez Gasco, Maria, 2014

Evaluating the risk of bacterial spot resistance to the antibiotic oxytetracycline
Fruit Times, Bardsley, S, Jimenez Gasco, Maria, 2013

One fungus, one name
PHYTOPATHOLOGY, Geiser, David M., Aoki, Takayuki, Bacon, Charles W., Baker, Scott E., Bhattacharyya, Madan K., Brandt, Mary E., Brown, Daren W., Burgess, Lester W., Chulze, Sofia, Coleman, Jeffrey J., Correll, James C., Covert, Sarah F., Crous, Pedro W., Cuomo, Christina A., De Hoog, G. Sybren, Di Pietro, Antonio, Elmer, Wade H., Epstein, Lynn, Frandsen, Rasmus J.N., Freeman, Stanley, Gagkaeva, Tatiana, Glenn, Anthony E., Gordon, Thomas R., Gregory, Nancy F., Hammond-Kosack, Kim E., Hanson, Linda E., Del Mar Jímenez-Gasco, María, Kang, Seogchan, Corby Kistler, H., Kuldau, Gretchen A., Leslie, John F., Logrieco, Antonio, Lu, Guozhong, Lysøe, Erik, Ma, Li Jun, McCormick, Susan P., Migheli, Quirico, Moretti, Antonio, Munaut, Françoise, O'Donnell, Kerry, Pfenning, Ludwig, Ploetz, Randy C., Proctor, Robert H., Rehner, Stephen A., Robert, Vincent A.R.G., Rooney, Alejandro P., Bin Salleh, Baharuddin, Scandiani, Maria Mercedes, Scauflaire, Jonathan, Short, Dylan P.G., Steenkamp, Emma, Suga, Haruhisa, Summerell, Brett A., Sutton, Deanna A., Thrane, Ulf, Trail, Francis, Van Diepeningen, Anne, VanEtten, Hans D., Viljoen, Altus, Waalwijk, Cees, Ward, Todd J., Wingfield, Michael J., Xu, Jin Rong, Yang, Xiao Bing, Yli-Mattila, Tapani, Zhang, Ning, 2013

Sequence variation in two protein-coding genes correlates with mycelial compatibility groupings in Sclerotium rolfsii
PHYTOPATHOLOGY, Remesal, Efrén, Landa, Blanca B., Jimenez Gasco, Maria Del Mar, Navas-Cortés, Juan A., 2013

Sudden vegetation dieback in Atlantic and Gulf coast salt marshes
Plant disease, Elmer, W. H., Useman, S., Schneider, R. W., Marra, R. E., LaMondia, J. A., Mendelssohn, I. A., Jimenez Gasco, Maria Del Mar, Caruso, F. L., 2013

Evaluating the risk of Xanthomonas arboricola pv. pruni (causal agent of bacterial spot of stone fruit) to the antibiotic oxytetracycline
Pennsylvania Fruit News, Bardsley, S, Jimenez Gasco, Maria, 2013

Sequence variation of protein‐coding genes as a diagnostic tool for the identification of mycelial compatibility groups in Sclerotium rolfsii
Phytopathology, Remesal, E, Landa, B, Jimenez Gasco, Maria, Navas‐Cortés, J, 2013

Transposable elements in phytopathogenic Verticillium spp.
BMC genomics, Amyotte, Stefan G., Tan, Xiaoping, Pennerman, Kayla, del Mar Jimenez-Gasco, Maria, Klosterman, Steven J., Ma, Li Jun, Dobinson, Katherine F., Veronese, Paola, 2012

Verticillium wilt, a major threat to olive production
Plant disease, Jimenez-Diaz, Rafael M., Cirulli, Matteo, Bubici, Giovanni, Jimenez Gasco, Maria Del Mar, Antoniou, Polymnia P., Tjamos, Eleftherios C., 2012

Sublethal doses of mefenoxam enhance pythium damping-off of geranium
Plant disease, Garzón, Carla D., Molineros, Julio E., Yánez, Jennifer M., Flores, Francisco J., Jimenez Gasco, Maria Del Mar, Moorman, Gary W., 2011

EVA-layered double hydroxide (nano)composites
Polymer Degradation and Stability, Wang, Xiaolan, Rathore, Rajendra, Songtipya, Ponusa, Jimenez-Gasco, Maria Del Mar, Manias, Evangelos, Wilkie, Charles A., 2011

Region-wide analysis of genetic diversity in Verticillium dahliae populations infecting olive in Southern Spain and agricultural factors influencing the distribution and prevalence of vegetative compatibility groups and pathotypes
PHYTOPATHOLOGY, Jiménez-Díaz, Rafael M., Olivares-García, Conceptión, Landa, Blanca B., Del Mar Jiménez-Gasco, María, Navas-Cortés, Juan A., 2011

Development and application of new molecular markers for analysis of genetic diversity in Verticillium dahliae populations
Plant Pathology, Berbegal, M., Garzón, C. D., Ortega, A., Armengol, J., Jiménez-Díaz, R. M., Jimenez Gasco, Maria Del Mar, 2011

Verticillium wilt
Plant disease, Cirulli, Matteo, Bubici, Giovanni, Amenduni, Mario, Armengol, Josep, Berbegal, Mónica, Del Mar Jiménez-Gasco, María, Jiménez-Díaz, Rafael M., 2010

Pleurotus eryngii species complex
Fungal Biology, Estrada, Alma E.Rodriguez, Jimenez-Gasco, Maria del Mar, Royse, Daniel J., 2010

Genetic diversity and host range of verticillium dahliae isolates from artichoke and other vegetable crops in Spain
Plant disease, Berbegal, M., Ortega, A., Jiménez-Gasco, M. M., Olivares-García, C., Jiménez-Díaz, R. M., Armengol, J., 2010

Factors determining the incidence of Verticillium dahliae vegetative compatibility groups and pathotypes in olive orchards at southern Spain
IOBC/wprs Bulletin, Navas‐Cortés, J, Olivares, C, Trapero‐Casas, J, Landa, B, Jimenez Gasco, Maria, Jiménez‐Díaz, R, 2010