Discover. Connect. Capitalize.

Expert View

81 Profile Views - 97 Project Views


Haywood D Laughinghouse
Assistant Professor

University of Florida



Google or Google Scholar for Haywood Laughinghouse

Recent Publications:


51. HISTER, CAL; BOLIGON, AA; LAUGHINGHOUSE IV, HD; Tedesco, SB. 2017.  Determination of phenolic compounds and assessment of the genotoxic and proliferative potential of Psidium cattleianum Sabin (Myrtaceae) fruits. Caryologia. Accepted

50. KANGAS, PC; MULBRY, W; KLAVON, P; LAUGHINGHOUSE IV, HD; ADEY, WH. 2017. High diversity within the periphyton community of an algal turf scrubber on the Susquehanna River. Ecol Eng. XXXX.

49. Wilmotte, A; LAUGHINGHOUSE IV, HD; Capelli, C; Rippka, R; SAlmaso, N. 2017. Taxonomic identification of Cyanobacteria by a polyphasic approach. In: Kurmayer, r; Sivonen, K; Wilmotte, A; Salmaso, N. A Handbook on Molecular Tools for the Detection and Quantification of Toxigenic Cyanobacteria. Wiley ISBN: 978-1-118-33210-7, 79-119 p.

48. Coelho, APD; LAUGHINGHOUSE IV, HD; KUHN AW; Boligon, AA; Athayde, ML; Canto-Dorow, TS; Silva, ACF; Tedesco, SB. 2017. Genotoxic and Antiproliferative potential of extracts of Echinodorus grandiflorus and Sagittaria montevidensis (Alismataceae). Caryologia 70(1): 82-91.


47. Rodrigues, LGF; FRESCURA, VDS; LAUGHINGHOUSE IV, HD; Pastori, T; Dalla Nora, G; Perez, NB; Lopes, SJ; Canto-Dorow, TS; Tedesco, SB. 2016. Allelopathic effect of gorse and myo-myo on the germination of lovegrass. Int. J. Curr. Res. 8 (11): 42112-42114.

46. JENSEN, L; GRANT, J; LAUGHINGHOUSE IV, HD; Katz, LA. 2016. Assessing the effects of a sequestered germline on interdomain lateral gene transfer into Metazoa. Evolution. 70: 1322-1333.

45. LAVÍN, P; Atala, C; Gallardo-Cerda, J; GonzÁlez-Aravena, M; Iglesia, R; Oses, R; Torres-DÍaz, C; Trefault, N; Molina-Montenegro, M; LAUGHINGHOUSE IV, HD.  2016. Isolation and characterization of an Antarctic Flavobacterium strain with agarase and alginate lyase activities. Pol Polar Res. 37(3): 403-419.

  1. PESSI, IS; MAALOUF, PC; LAUGHINGHOUSE IV, HD; Baurain, D; WILMOTTE, A. 2016. On the use of high-throughput sequencing for the study of cyanobacterial diversity in Antarctic aquatic mats. J. Phycol. 52: 356-368.


  1. Hinchliff, C; Smith, SA; ALLMAN, JF; Burleigh, G; CHAUDARY, R; Crandall, K; Deng, J; Drew, BH; Gazis, R; Gude, K; Hibbet, DS; Katz, LA; LAUGHINGHOUSE IV, HD; Mctavish, EJ; MIDFORD, PE; Owen, C; Ree, R; Rees, JA; SolTis, D; Williams, T; Cranston, K. 2015. Synthesis of phylogeny and taxonomy into a comprehensive tree of life.  Proc. Natl. Acad. Sci. 112(41): 12764-12769.
  1. KUHN AW; Tedesco, M; Boligon, AA; Athayde, ML; LAUGHINGHOUSE IV, HD; Tedesco, SB. 2015. Chromatographic analysis and antiproliferative potential of aqueous extracts of Punica granatum fruit peels using the Allium cepa test. Braz J Pharm Sci 51(1): 241-248.
  1. KUHN AW; Tedesco, M; LAUGHINGHOUSE IV, HD; Silva, CB; CANTO-DOROW, TS; Tedesco, SB. 2015.  Mutagenic and antimutagenic effects of Eugenia uniflora L. by the Allium cepa L. test. Caryologia.  68(1): 25-30.
  1. LAUGHINGHOUSE IV, HD; MILLER, K; adey, wh; LARA, Y; Johnson, G; Young, R. 2015.  Evolution of the northern rockweed Fucus distichus in a regime of glacial cycling: implications for benthic algal phylogenetics.  PLoS One 10(12): e0143795.
  1. LUZ, LV; Silva, ACF; LAUGHINGHOUSE IV, HD; Tedesco, SB; Coelho, APD. 2015. Cytogenetic characterization of Schinus terebinthifolius Raddi (Anacardiaceae) accessions from Rio Grande do Sul, Brazil. Caryologia 68(2): 132-137.
  1. Malone, CF; Rigonato, J; LAUGHINGHOUSE IV, HD; Schmith, E; Bouzon, ZL; Wilmotte, A; Fiore, MF; Sant’Anna, CL. 2015. Cephalothrix gen. nov. (Cyanobacteria): towards an intraspecific phylogenetic evaluation by multi-locus analyses. Int J System Evol Microbiol. 65: 2993-3007.
  1. Tedesco, M; KUHN AW; Boligon, AA; LAUGHINGHOUSE IV, HD; Athayde, ML; Silva, ACF; Tedesco, SB. 2015. Chromatographic analysis, antiproliferative effect and genotoxicity of aqueous extracts of Citrus sinensis (L.) Osbeck on the Allium cepa L. test system. Biosci J 31(4): 1213-1221.


36.     Dalla Nora, G; Tedesco, SB; Pastori, T; FRESCURA, VDS; Ribeiro, ND; LAUGHINGHOUSE IV, HD; Lopes, SJ; Schifino-WittmanN, MT. 2014. Meiotic behavior and pollen viability in bean cultivars. Biocell 38(1-3): 33-38.

  1. GAMA Jr, WA; LAUGHINGHOUSE IV, HD; SANT’ANNA, CL. 2014. How diverse are coccoid cyanobacteria?  A case study of terrestrial habitats from the Atlantic Rainforest (São Paulo, Brazil). Phytotaxa 178(2): 61-97.
  1. Lahr, DLG; LAUGHINGHOUSE IV, HD; Oliverio, A; Gao, F; Katz, LA. 2014. How discordant morphological and molecular evolution among microorganisms can revise our notions of biodiversity on earth. BioEssays 36: 950-959.
  1. Sandefur, HN; Johnston, RZ; Matlock, MD; Costello, TA; Adey, WH; LAUGHINGHOUSE IV, HD. 2014. Hydrodynamic regime considerations for the cultivation of periphytic biofilms in two tertiary treatment systems. Ecol Eng 71: 527-532.


  1. adey, wh; LAUGHINGHOUSE IV, HD; MILLER, JB; HAYEK, L-AC; Thompson, JG; Bertman, S; Hampel, K; Puvanendran, S. 2013. Algal Turf Scrubber floways on the Great Wicomico River, a mesohaline inlet on the Chesapeake Bay: productivity, algal community structure, substrate and chemistry. J. Phycol. 49: 489-501.
  1. FRESCURA, VDS; KUHN AW; LAUGHINGHOUSE IV, HD; NICOLOSO, FT; Lopes, S; Tedesco, SB. 2013. Evaluation of the allelopathic, genotoxic, and antiproliferative effects of the medicinal species Psychotria umbellata and Psychotria birotula (Rubiaceae) on the germination of Eruca sativa (Brassiaceae). Caryologia 66(2): 138-144.
  1. FRESCURA, VD-S; KUHN AW; LAUGHINGHOUSE IV, HD; Paranhos, JT; Tedesco, SB. 2013. Post-treatment with plant extracts used in Brazilian folk medicine caused a partial reversal of the antiproliferative effect of glyphosate in the Allium cepa test. Biocell 37(2): 23-28.


  1. Coelho, APD; Morais, K; LAUGHINGHOUSE IV, HD; GIACOMINI, SJ; Tedesco, SB. 2012. Pollen grain viability in accessions of Crotalaria juncea L. (Fabaceae).  Agrociencia 46(5): 481-487.
  1. FRESCURA, VDS; LAUGHINGHOUSE IV, HD; Tedesco, SB. 2012. Antiproliferative effect of the arboreal and medicinal species Luehea divaricata on the Allium cepa cell cycle.  Caryologia 65(1): 27-33.
  1. FRESCURA, VDS; LAUGHINGHOUSE IV, HD; Canto-Dorow, TS; Tedesco, SB. 2012.  Pollen viability of Polygala paniculata L. (Polygalaceae) using different methods of staining.  Biocell 36(3): 143-145.
  1. KLING, H; LAUGHINGHOUSE IV, HD; ŠMARDA, J; KOMáREK, J; ACREMAN, J; BRUUN, K; WATSON, SB; CHEN, F. 2012. A new red colonial Pseudanabaena (Cyanoprokaryota, Oscillatoriales) from North American large lakes.  Fottea 12(2): 327-339.
  1. LAUGHINGHOUSE IV, HD; Prá, D; Silva-STENICO, ME; Rieger, A; FRESCURA, VDS; Fiore, MF; Tedesco, SB. 2012.  Biomonitoring genotoxicity and cytotoxicity of Microcystis aeruginosa (Chroococcales, Cyanobacteria) using the Allium cepa test. Sci Total Environ 432: 180-188.
  1. PICCINI, F; FRESCURA, VDS; LAUGHINGHOUSE IV, HD; PEREZ, NB; MACHADO, OB; Tedesco, SB. 2012. Pollen viability of genotypes of Eragrostis plana from different geographic populations in Rio Grande do Sul, Brazil.  Enciclopédia Biosfera 8(15): 1316-1324.
  1. SHERWOOD, AR; NECCHI JR, O; CARLILE, AL; LAUGHINGHOUSE IV, HD; Fredericq, S; SHEATH, RG. 2012. Characterization of a novel freshwater gigartinalean red alga from Belize, with description of Sterrocladia belizeana sp. nov. Phycologia 51(6): 627-635.
  1. WANG, H; LAUGHINGHOUSE IV, HD; Anderson, MA; chen, f; Willians, E; Place, AR; Zmora, O; Zohar, Y; zheng, t; hill, rt.  2012.  Novel Bacterial Isolate from Permian Groundwater, Capable of Aggregating Potential Biofuel-Producing Microalga Nannochloropsis oceanica IMET1.  Appl. Environ. Microbiol. 78(5): 1445-1453.
  1. Werner, VR; LAUGHINGHOUSE IV, HD; Fiore, MF; Sant’Anna, CL; HOFF, C; SANTOS, KRS; NEUHAUS, EB; MOLICA, RJR; Honda, RY; Echenique, R. 2012.  Morphological and molecular studies of Sphaerospermopsis torques-reginae comb. nov. (Nostocales, Cyanobacteria) from South American water blooms. Phycologia 51(2): 228-238.


  1. COSTA, RCL; LOBATO, AKS; SILVEIRA, JAG; LAUGHINGHOUSE IV, HD.  2011.  ABA-mediated proline synthesis in cowpea leaves exposed to water deficiency and rehydration.  Turk J Agric For. 35: 309-317.
  1. Sandefur, HN; Matlock, MD; Costello, TA; Adey, WH; LAUGHINGHOUSE IV, HD. 2011.  Seasonal productivity of a periphytic algal community for biofuel feedstock generation and nutrient treatment.  Ecol Eng 37: 1476-1480.


  1. DALLA Nora, G; Pastori, T; LAUGHINGHOUSE IV, HD; Canto-Dorow, TS; Tedesco, SB.  2010.  Antiproliferative and genotoxic effects of Mikania glomerata (Asteraceae).  Biocell 34(3): 95-101.
  1. NETO, MAM; LOBATO, AKS; ALVES, JD; GOULART, PFP; LAUGHINGHOUSE IV, HD. 2010.  Seed and Seedling Anatomy in Euterpe oleraceae Mart. during the Germination Process.  J Food Agric Environ 8(2): 1147-1152.
  1. ROSSATO, LV; TEDESCO, SB; LAUGHINGHOUSE IV, HD; NICOLOSO, FT.  2010.  Alterations in the mitotic index of Allium cepa induced by infusions of Pluchea sagittalis submitted to three different cultivation systems.  An. Acad. Bras. Cienc.  82(4): 857-860.
  1. SOUZA, LFB; LAUGHINGHOUSE IV, HD; PASTORI, T; TEDESCO, M; KUHN AW; CANTO-DOROW, TS; Tedesco, SB.  2010. Genotoxic potential of aqueous extracts of Artemisia verlotorum on the cell cycle of Allium cepaInt J Environ Stud 67(6): 871-877.


  1. Bagatini, MD; Vasconcelos, TG; LAUGHINGHOUSE IV, HD; Martins, AF; Tedesco, SB. 2009. Biomonitoring Hospital Effluents by the Allium cepa L. Test.  B Environ Contam Tox 82: 590-592.
  1. Hister, CAL; LAUGHINGHOUSE IV, HD; Silva, CB; Canto-Dorow, TS; Tedesco, SB.  2009.  Evaluation of the antiproliferative effects of infusions and essential oil of Aloysia gratissima.  Pak J Biol Sci 12(24): 1581-1584.
  1. Lobato, AKS; Luz, LM; Costa, RCL; Santos Filho, BG; MEIRELLES, ACS; Oliveira Neto, CF; LAUGHINGHOUSE IV, HD; Neto, MAM; ALVES, GAR; LOPES, MJS; NEVES, HKB.  2009.  Silicon exercises influence on nitrogen compounds in pepper subjected to water deficit.  Res J Biol Sci 4(9): 1048-1055.
  1. Werner, VR; LAUGHINGHOUSE IV, HD. 2009. Bloom-forming and other planktonic Anabaena (Cyanobacteria) morphospecies with twisted trichomes from Rio Grande do Sul State, Brazil.  Nova Hedwigia 89 (1-2): 17-47.


  1. Carvalho, LR; Pipole, F; Werner, VR; LAUGHINGHOUSE IV, HD; Rangel, M; Konno, K; Camargo, ACM; Sant’Anna, CL. 2008.  A Toxic Cyanobacterial Bloom in an Urban Coastal Lake, Rio Grande do Sul, Southern Brazil.  Braz J Microbiol 39(4): 761-769.
  1. Costa, RCL; Lobato, AKS; Oliveira Neto, CF; Maia, PSP; Alves, GAR; LAUGHINGHOUSE, HD2008.  Biochemical and Physiological Responses in Two Vigna unguiculata (L.) Walp. Cultivars Under Water Stress.  Journal of Agronomy 7(1): 98-101.
  1. Fachinetto, JM; LAUGHINGHOUSE IV, HD; Silva, ACF; Tedesco, SB.  2008. Variability of the chromosomal number and meiotic behavior in populations of Bidens pilosa L. (Asteraceae) from southern Brazil.  Caryologia 61(2): 164-169.
  1. Lobato, AKS; Oliveira Neto, CF; Costa, RCL; Santos Filho, BG; Silva, FKS; Cruz, FJR; Abboud, ACS; LAUGHINGHOUSE, HD.  2008.  Germination of Sorghum Under the Influences of Water Restriction and Temperature.  Agricultural Journal 3(3): 220-224.
  1. Lobato, AKS; Oliveira Neto, CF; Costa, RCL; Santos Filho, BG; Silva, FKS; Cruz, FJR; LAUGHINGHOUSE IV, HD.  2008. Biochemical and Physiological Behavior of Vigna unguiculata (L.) Walp. Under Water Stress during the Vegetative Stage.  Asian J Plant Sci 7(1): 44-49.
  1. Lubini, G; Fachinetto, JM; LAUGHINGHOUSE IV, HD; Paranhos, JT; Silva, ACF; Tedesco, SB.  2008.  Extracts affecting mitotic division in root tip meristematic cells.  Biologia 63(5): 647-651.
  1. Olkoski, D; LAUGHINGHOUSE IV, HD; Silva, ACF; Tedesco, SB. 2008.  Meiotic Analysis of the Germplasm of three Medicinal Species from the Asteraceae Family.  Ciência Rural 38(6): 1777-1780.


  1. Silva, MHL; Costa, RCL; Lobato, AKS; Oliveira Neto, CF; LAUGHINGHOUSE IV, HD.  2007.  Effect of Temperature and Water Restriction on Piper aduncum L. Seed Germination.  Journal of Agronomy 6(3): 472-475.
  1. KÖche, A; Rieger, A; Geller, FC; LAUGHINGHOUSE IV, HD. 2006.  Epidemiological, behavioral, and genetic aspects of alcoholism in a sample from the population of the Rio Pardo Valley, RS [In Portuguese].  Caderno de Pesquisa, Série Biologia 18(2): 151-165.

Books/Book Chapters

  1. LAUGHINGHOUSE IV, HD. 2012. Bioindicator of Genotoxicity: the Allium cepa test. In: SRIVASTAVA, J.K.  Environmental Contamination.  Rijeka: InTech Publisher. pp. 137-156. ISBN: 978-953-51-0120-8. **15,966 downloads as of 4 July 2017.

© 1999-2023, State of Florida