The Crouch laboratory focuses on investigations of emergent and quarantine-significant fungal pathogens of grasses and ornamental crops, including the newly emergent boxwood blight pathogen Calonectria pseudonaviculata, turfgrass pathogens causing dollar spot, anthracnose and rust diseases, and anthracnose pathogens of bioenergy grasses. The lab is also exploring the concepts and practices associated with DNA analyses of fungal natural history collections.

Peer reviewed publications

• O’Connell, RJ, Thon, MR, Hacquard, S, van Themaat, EVL, Amyotte, S, Kleeman, J, Torres-Quintero, M, Damm, U, Buiate, E, Epstein, L, Alkan, N, Altmuller, J, Alvarado-Balderrama, L, Bauser, C, Becker, C, Birren, B, Chen, Z, Crouch, JA, Duvick, J, Farman, M, Gan, P, Heiman, D, Henrissat, B, Howard, RJ, Kabbage, M, Koch, C, Kubo, Y, Law, A, Lebrun, M-H, Lee, YH, Miyara, I, Moore, N, Neumann, U, Pannaccione, DG, Panstruga, R, Place, M, Proctor, RH, Prusky, D, Rech, G, Reinhardt, R, Rollins, JA, Rounsley, S, Schardl, C, Schwartz, DC, Shenoy, N, Shirasu, K, Stuber, K, Sukno, SA, Sweigard, JA, Takano, Y, Takahara, H, van der Does, HC, Voll, L, Will, I, Young, S, Zeng, Q, Zhang, J, Zhou, S, Dickman, MB, Schulze-Lefert, P, Ma, LJ, and Vaillancourt, LJ.  (2012)  Life-style transitions in plant pathogenic Colletotrichum fungi defined by genome and transcriptome analyses. Nature Genetics: accepted.
• Crouch, JA and Tomaso-Peterson, M.  (2012) Anthracnose disease of centipedegrass turf caused by Colletotrichum eremochloa, a new fungal species closely related to Colletotrichum sublineola.  Mycologia: In press: doi:10.3852/11-317.
• Beirn LA, Moy, M, Meyer, WA, Clarke, BB and Crouch, JA.  (2011) Molecular analysis of turfgrass rusts reveals the widespread distribution of Puccinia coronata as a pathogen of Kentucky bluegrass in the U.S. Plant Disease 95:1547-1557.
• Crouch, JA and Szabo, LJ. (2011) Real-time PCR detection and discrimination of the southern and common corn rust pathogens Puccinia polysora and Puccinia sorghi. Plant Disease 95:624-632.
• Prihusati, H, Cai, L, Crouch, JA, Phoulivong, S, Moslem, MA, McKenzie, EHC and Hyde, KD. (2010)  Neotypification of Colletotrichum falcatum, the causative agent of red-rot disease in sugarcane. Sydowia: 62(2): 283-293.
• Crouch, JA, Beirn, LA, Cortese, LM, Bonos, SB and Clarke, BB.  (2009) Anthracnose disease of switchgrass caused by the novel fungal species Colletotrichum navitas. Mycological Research 113: 1411-1421.
• Kobayashi, DY and Crouch, JA.  (2009) Bacterial-fungal interactions: From pathogens to mutualistic endosymbionts. Annual Review of Phytopathology 47: 63-82.
• Crouch, JA and Beirn, LA.  (2009) Anthracnose of cereals and grasses. Fungal Diversity 39(12):19-44.
• Crouch, JA, Tredway, LP, Clarke, BB and Hillman, BI. (2009) Phylogenetic and population genetic divergence correspond with habitat for the pathogen Colletotrichum cereale and allied taxa across diverse grass communities. Molecular Ecology: 18:123-135.
• Crouch, JA, Clarke, BB and Hillman, BI. (2009) What is the value of ITS sequence data in Colletotrichum systematics and species diagnosis? A case study using the graminicolous Colletotrichum group. Mycologia 101:648-656.
• Polashock, JJ, Caruso, FL, Oudemans, PV, McManus, PS and Crouch, JA. (2009) The North American cranberry fruit rot fungal community: A systematic overview using morphological and phylogenetic affinities. Plant Pathology 58: 1116-1127.
• Hyde, KD, Cai, L, Cannon, PF, Crouch, JA, Crous, PW, Damm, U, Goodwin, PH, Chen, H, Johnston, PR, Jones, EBG, Lui, ZY, McKenzie, EHC, Moriwaki, J, Noireung, P, Pennycook, SR, Pfenning, LH, Phoulivong, S, Prihastuti, H, Sato, T, Shivas, RG, Taylor, PWJ, Tan, YP, Weir, BS, Yang, YL and Zhang, JZ. (2009) Colletotrichum: Names in current use. Fungal Diversity 39: 147-183.
• Crouch, JA, Clarke, BB, White, JF Jr and Hillman, BI. (2009) Systematic analysis of the graminicolous Colletotrichum and a description of six new species from warm season grasses. Mycologia 101:717-732.
• Polashock, JJ, Ehlenfeldt, MK and Crouch, JA.  (2009) Molecular detection and discrimination of blueberry red ringspot virus strains causing disease in cultivated blueberry and cranberry. Plant Disease 93: 727-733.  (selected as “Editors Choice” for  the July 2009 issue of Plant Disease.)
• Crouch, JA and Inguagiato, JC.  (2009) First report of anthracnose disease of ornamental feather reed grass (Calamagrostis x acutifolia 'Karl Foerster') caused by Colletotrichum cereale. Plant Disease 93: 203.
• Crouch, JA, Glasheen, BM, Giunta, MA, Clarke, BB and Hillman, BI. (2008) The evolution of transposon repeat-induced point mutation in the genome of Colletotrichum cereale: Reconciling sex, recombination and homoplasy in an "asexual" pathogen. Fungal Genetics and Biology 45:190–206.
• Crouch, JA, Glasheen, BM, Uddin, W, Clarke, BB, and Hillman, BI. (2008) Patterns of diversity in populations of the turfgrass pathogen Colletotrichum cereale as revealed by transposon fingerprint profiles. Crop Science 48:1203-1210.
• Young, JR, Tomaso-Peterson, M and Crouch, JA. (2008) First report of Colletotrichum cereale causing anthracnose foliar blight of creeping bentgrass in Mississippi and Alabama.  Plant Disease 92: 1475.
• Crouch, JA, Clarke, BB, and Hillman, BI.  (2006) Unraveling evolutionary relationships among the divergent lineages of Colletotrichum causing anthracnose disease in turfgrass and maize. Phytopathology 96:46-60 (cover article).
• Crouch, JA, Clarke, BB, and Hillman, BI.  (2005) Phylogenetic relationships and fungicide resistance in Colletotrichum isolates from turfgrass in North America. Int. Turfgrass Soc. Res. J. 10: 186-195.
• Li, HM, Crouch, JA, and Belanger, FC.  (2005) Fungal endophyte N-acetylglucosaminidase expression in the infected host grass.  Mycological Research 109: 363-373.

Book chapters, trade publications and other non-refereed publications