Ann M. Hirsch

Ann M Hirsch

Professor, Molecular, Cell and Developmental Biology, University of California Los Angeles


  1. Ha L, Levian C, Greene N, Goldfarb I, Hirsch A, Naqvi M. Association between acceptance of routine pregnancy vaccinations and COVID-19 vaccine uptake in pregnant patients.. The Journal of infection, 2023.
  2. Khan N, Humm EA, Jayakarunakaran A, Hirsch AM. Reviewing and renewing the use of beneficial root and soil bacteria for plant growth and sustainability in nutrient-poor, arid soils.. Frontiers in plant science, 2023.
  3. Youseif SH, Abd El-Megeed FH, Humm EA, Maymon M, Mohamed AH, Saleh SA, Hirsch AM. Comparative Analysis of the Cultured and Total Bacterial Community in the Wheat Rhizosphere Microbiome Using Culture-Dependent and Culture-Independent Approaches.. Microbiology spectrum, 2021.
  4. Khan N, Martínez-Hidalgo P, Humm EA, Maymon M, Kaplan D, Hirsch AM. Inoculation With a Microbe Isolated From the Negev Desert Enhances Corn Growth.. Frontiers in microbiology, 2020.
  5. Primo ED, Cossovich S, Nievas F, Bogino P, Humm EA, Hirsch AM, Giordano W. Exopolysaccharide production in Ensifer meliloti laboratory and native strains and their effects on alfalfa inoculation.. Archives of microbiology, 2019.
  6. Estrada-de Los Santos P, Palmer M, Steenkamp ET, Maluk M, Beukes C, Hirsch AM, James EK, Venter SN. Trinickia dabaoshanensis sp. nov., a new name for a lost species.. Archives of microbiology, 2019.
  7. Rojas-Rojas FU, Sánchez-López D, Tapia-García EY, Arroyo-Herrera I, Maymon M, Humm E, Huntemann M, Clum A, Pillay M, Palaniappan K, Varghese N, Mikhailova N, Stamatis D, Reddy TBK, Ivanova N, Kyrpides N, Woyke T, Shapiro N, Hirsch AM, Ibarra JA, Estrada-de Los Santos P. Draft Genome of Burkholderia cenocepacia TAtl-371, a Strain from the Burkholderia cepacia Complex Retains Antagonism in Different Carbon and Nitrogen Sources.. Current microbiology, 2019.
  8. Khan N, Martínez-Hidalgo P, Ice TA, Maymon M, Humm EA, Nejat N, Sanders ER, Kaplan D, Hirsch AM. Antifungal Activity of Bacillus Species Against Fusarium and Analysis of the Potential Mechanisms Used in Biocontrol.. Frontiers in microbiology, 2018.
  9. Martínez-Hidalgo P, Maymon M, Pule-Meulenberg F, Hirsch AM. Engineering root microbiomes for healthier crops and soils using beneficial, environmentally safe bacteria.. Canadian journal of microbiology, 2018.
  10. Sorroche F, Bogino P, Russo DM, Zorreguieta A, Nievas F, Morales GM, Hirsch AM, Giordano W. Cell Autoaggregation, Biofilm Formation, and Plant Attachment in a Sinorhizobium meliloti lpsB Mutant.. Molecular plant-microbe interactions : MPMI, 2018.
  11. Estrada-de Los Santos P, Palmer M, Chávez-Ramírez B, Beukes C, Steenkamp ET, Briscoe L, Khan N, Maluk M, Lafos M, Humm E, Arrabit M, Crook M, Gross E, Simon MF, Dos Reis Junior FB, Whitman WB, Shapiro N, Poole PS, Hirsch AM, Venter SN, James EK. Whole Genome Analyses Suggests that Burkholderia sensu lato Contains Two Additional Novel Genera (Mycetohabitans gen. nov., and Trinickia gen. nov.): Implications for the Evolution of Diazotrophy and Nodulation in the Burkholderiaceae.. Genes, 2018.
  12. Rojas-Rojas FU, Salazar-Gómez A, Vargas-Díaz ME, Vásquez-Murrieta MS, Hirsch AM, De Mot R, Ghequire MGK, Ibarra JA, Estrada-de Los Santos P. Broad-spectrum antimicrobial activity by Burkholderia cenocepacia TAtl-371, a strain isolated from the tomato rhizosphere.. Microbiology (Reading, England), 2018.
  13. Rojas-Rojas FU, Tapia-García EY, Maymon M, Humm E, Huntemann M, Clum A, Pillay M, Palaniappan K, Varghese N, Mikhailova N, Stamatis D, Reddy TBK, Markowitz V, Ivanova N, Kyrpides N, Woyke T, Shapiro N, Hirsch AM, Estrada-de Los Santos P. Draft genome of Paraburkholderia caballeronis TNe-841T, a free-living, nitrogen-fixing, tomato plant-associated bacterium.. Standards in genomic sciences, 2017.
  14. Khan N, Maymon M, Hirsch AM. Combating Fusarium Infection Using Bacillus-Based Antimicrobials.. Microorganisms, 2017.
  15. Benito P, Alonso-Vega P, Aguado C, Luján R, Anzai Y, Hirsch AM, Trujillo ME. Monitoring the colonization and infection of legume nodules by Micromonospora in co-inoculation experiments with rhizobia.. Scientific reports, 2017.
  16. Veliz EA, Martínez-Hidalgo P, Hirsch AM. Chitinase-producing bacteria and their role in biocontrol.. AIMS microbiology, 2017.
  17. Shimomura A, Arima S, Hayashi M, Maymon M, Hirsch AM, Suzuki A. Blue light does not inhibit nodulation in Sesbania rostrata.. Plant signaling & behavior, 2017.
  18. Shimomura A, Naka A, Miyazaki N, Moriuchi S, Arima S, Sato S, Hirakawa H, Hayashi M, Maymon M, Hirsch AM, Suzuki A. Blue Light Perception by Both Roots and Rhizobia Inhibits Nodule Formation in Lotus japonicus.. Molecular plant-microbe interactions : MPMI, 2016.
  19. De Meyer SE, Briscoe L, Martínez-Hidalgo P, Agapakis CM, de-Los Santos PE, Seshadri R, Reeve W, Weinstock G, O'Hara G, Howieson JG, Hirsch AM. Symbiotic Burkholderia Species Show Diverse Arrangements of nif/fix and nod Genes and Lack Typical High-Affinity Cytochrome cbb3 Oxidase Genes.. Molecular plant-microbe interactions : MPMI, 2016.
  20. Nagata M, Yamamoto N, Miyamoto T, Shimomura A, Arima S, Hirsch AM, Suzuki A. Enhanced hyphal growth of arbuscular mycorrhizae by root exudates derived from high R/FR treated Lotus japonicus.. Plant signaling & behavior, 2016.
  21. Nagata M, Yamamoto N, Shigeyama T, Terasawa Y, Anai T, Sakai T, Inada S, Arima S, Hashiguchi M, Akashi R, Nakayama H, Ueno D, Hirsch AM, Suzuki A. Red/Far Red Light Controls Arbuscular Mycorrhizal Colonization via Jasmonic Acid and Strigolactone Signaling.. Plant & cell physiology, 2015.
  22. Maymon M, Martínez-Hidalgo P, Tran SS, Ice T, Craemer K, Anbarchian T, Sung T, Hwang LH, Chou M, Fujishige NA, Villella W, Ventosa J, Sikorski J, Sanders ER, Faull KF, Hirsch AM. Mining the phytomicrobiome to understand how bacterial coinoculations enhance plant growth.. Frontiers in plant science, 2015.
  23. Tariq M, Lum MR, Chong AW, Amirapu AB, Hameed S, Hirsch AM. A reliable method for the selection and confirmation of transconjugants of plant growth-promoting bacteria especially plant-associated Burkholderia spp.. Journal of microbiological methods, 2015.
  24. Coutinho Moraes DF, Still DW, Lum MR, Hirsch AM. DNA-Based Authentication of Botanicals and Plant-Derived Dietary Supplements: Where Have We Been and Where Are We Going?. Planta medica, 2015.
  25. Amaya-Gómez CV, Hirsch AM, Soto MJ. Biofilm formation assessment in Sinorhizobium meliloti reveals interlinked control with surface motility.. BMC microbiology, 2015.
  26. Sanders ER, Hirsch AM. Immersing undergraduate students into research on the metagenomics of the plant rhizosphere: a pedagogical strategy to engage civic-mindedness and retain undergraduates in STEM.. Frontiers in plant science, 2014.
  27. Angus AA, Agapakis CM, Fong S, Yerrapragada S, Estrada-de los Santos P, Yang P, Song N, Kano S, Caballero-Mellado J, de Faria SM, Dakora FD, Weinstock G, Hirsch AM. Plant-associated symbiotic Burkholderia species lack hallmark strategies required in mammalian pathogenesis.. PloS one, 2014.
  28. Hirsch AM, Alvarado J, Bruce D, Chertkov O, De Hoff PL, Detter JC, Fujishige NA, Goodwin LA, Han J, Han S, Ivanova N, Land ML, Lum MR, Milani-Nejad N, Nolan M, Pati A, Pitluck S, Tran SS, Woyke T, Valdés M. Complete Genome Sequence of Micromonospora Strain L5, a Potential Plant-Growth-Regulating Actinomycete, Originally Isolated from Casuarina equisetifolia Root Nodules.. Genome announcements, 2013.
  29. Martínez-Aguilar L, Salazar-Salazar C, Méndez RD, Caballero-Mellado J, Hirsch AM, Vásquez-Murrieta MS, Estrada-de los Santos P. Burkholderia caballeronis sp. nov., a nitrogen fixing species isolated from tomato (Lycopersicon esculentum) with the ability to effectively nodulate Phaseolus vulgaris.. Antonie van Leeuwenhoek, 2013.
  30. Kaplan D, Maymon M, Agapakis CM, Lee A, Wang A, Prigge BA, Volkogon M, Hirsch AM. A survey of the microbial community in the rhizosphere of two dominant shrubs of the Negev Desert highlands, Zygophyllum dumosum (Zygophyllaceae) and Atriplex halimus (Amaranthaceae), using cultivation-dependent and cultivation-independent methods.. American journal of botany, 2013.
  31. Estrada-de los Santos P, Vinuesa P, Martínez-Aguilar L, Hirsch AM, Caballero-Mellado J. Phylogenetic analysis of burkholderia species by multilocus sequence analysis.. Current microbiology, 2013.
  32. Robledo M, Rivera L, Jiménez-Zurdo JI, Rivas R, Dazzo F, Velázquez E, Martínez-Molina E, Hirsch AM, Mateos PF. Role of Rhizobium endoglucanase CelC2 in cellulose biosynthesis and biofilm formation on plant roots and abiotic surfaces.. Microbial cell factories, 2012.
  33. Shigeyama T, Tominaga A, Arima S, Sakai T, Inada S, Jikumaru Y, Kamiya Y, Uchiumi T, Abe M, Hashiguchi M, Akashi R, Hirsch AM, Suzuki A. Additional cause for reduced JA-Ile in the root of a Lotus japonicus phyB mutant.. Plant signaling & behavior, 2012.
  34. Gyaneshwar P, Hirsch AM, Moulin L, Chen WM, Elliott GN, Bontemps C, Estrada-de Los Santos P, Gross E, Dos Reis FB, Sprent JI, Young JP, James EK. Legume-nodulating betaproteobacteria: diversity, host range, and future prospects.. Molecular plant-microbe interactions : MPMI, 2011.
  35. Suzuki A, Suriyagoda L, Shigeyama T, Tominaga A, Sasaki M, Hiratsuka Y, Yoshinaga A, Arima S, Agarie S, Sakai T, Inada S, Jikumaru Y, Kamiya Y, Uchiumi T, Abe M, Hashiguchi M, Akashi R, Sato S, Kaneko T, Tabata S, Hirsch AM. Lotus japonicus nodulation is photomorphogenetically controlled by sensing the red/far red (R/FR) ratio through jasmonic acid (JA) signaling.. Proceedings of the National Academy of Sciences of the United States of America, 2011.
  36. Kuo D, Nie M, De Hoff P, Chambers M, Phillips M, Hirsch AM, Courey AJ. A SUMO-Groucho Q domain fusion protein: characterization and in vivo Ulp1-mediated cleavage.. Protein expression and purification, 2010.
  37. Hirsch AM, Lee A, Deng W, Tucker SC. An open-flower mutant of Melilotus alba: Potential for floral-dip transformation of a papilionoid legume with a short life cycle?. American journal of botany, 2010.
  38. Angus AA, Hirsch AM. Insights into the history of the legume-betaproteobacterial symbiosis.. Molecular ecology, 2010.
  39. Tominaga A, Nagata M, Futsuki K, Abe H, Uchiumi T, Abe M, Kucho K, Hashiguchi M, Akashi R, Hirsch AM, Arima S, Suzuki A. Enhanced nodulation and nitrogen fixation in the abscisic acid low-sensitive mutant enhanced nitrogen fixation1 of Lotus japonicus.. Plant physiology, 2009.
  40. De Hoff PL, Brill LM, Hirsch AM. Plant lectins: the ties that bind in root symbiosis and plant defense.. Molecular genetics and genomics : MGG, 2009.
  41. Lee A, Giordano W, Hirsch AM. Cytokinin induces expansin gene expression in Melilotus alba Desr. wild-type and the non-nodulating, non-mycorrhizal (NodMyc) mutant Masym3.. Plant signaling & behavior, 2008.
  42. Suzuki A, Hara H, Kinoue T, Abe M, Uchiumi T, Kucho K, Higashi S, Hirsch AM, Arima S. Split-root study of autoregulation of nodulation in the model legume Lotus japonicus.. Journal of plant research, 2008.
  43. Fujishige NA, Lum MR, De Hoff PL, Whitelegge JP, Faull KF, Hirsch AM. Rhizobium common nod genes are required for biofilm formation.. Molecular microbiology, 2007.
  44. Woo HH, Jeong BR, Hirsch AM, Hawes MC. Characterization of Arabidopsis AtUGT85A and AtGUS gene families and their expression in rapidly dividing tissues.. Genomics, 2007.
  45. Lee A, Lum MR, Hirsch AM. ENOD40 Gene Expression and Cytokinin Responses in the Nonnodulating, Nonmycorrhizal (NodMyc) Mutant, Masym3, of Melilotus alba Desr.. Plant signaling & behavior, 2007.
  46. Rinaudi L, Fujishige NA, Hirsch AM, Banchio E, Zorreguieta A, Giordano W. Effects of nutritional and environmental conditions on Sinorhizobium meliloti biofilm formation.. Research in microbiology, 2006.
  47. Lee A, Hirsch AM. Signals and Responses: Choreographing the Complex Interaction between Legumes and alpha- and beta-Rhizobia.. Plant signaling & behavior, 2006.
  48. Fujishige NA, Kapadia NN, De Hoff PL, Hirsch AM. Investigations of Rhizobium biofilm formation.. FEMS microbiology ecology, 2006.
  49. Lum MR, Potter E, Dang T, Heber D, Hardy M, Hirsch AM. Identification of botanicals and potential contaminants through RFLP and sequencing.. Planta medica, 2005.
  50. Valdés M, Pérez NO, Estrada-de Los Santos P, Caballero-Mellado J, Peña-Cabriales JJ, Normand P, Hirsch AM. Non-Frankia actinomycetes isolated from surface-sterilized roots of Casuarina equisetifolia fix nitrogen.. Applied and environmental microbiology, 2005.
  51. Giordano W, Hirsch AM. The expression of MaEXP1, a Melilotus alba expansin gene, is upregulated during the sweetclover-Sinorhizobium meliloti interaction.. Molecular plant-microbe interactions : MPMI, 2004.
  52. Woo HH, Hirsch AM, Hawes MC. Altered susceptibility to infection by Sinorhizobium meliloti and Nectria haematococca in alfalfa roots with altered cell cycle.. Plant cell reports, 2004.
  53. Wildman SG, Hirsch AM, Kirchanski SJ, Spencer D. Chloroplasts in Living Cells and the String-of-Grana Concept of Chloroplast Structure Revisited.. Photosynthesis research, 2004.
  54. Brill LM, Fujishige NA, Hackworth CA, Hirsch AM. Expression of MsLEC1 transgenes in alfalfa plants causes symbiotic abnormalities.. Molecular plant-microbe interactions : MPMI, 2004.
  55. Woo HH, Faull KF, Hirsch AM, Hawes MC. Altered life cycle in Arabidopsis plants expressing PsUGT1, a UDP-glucuronosyltransferase-encoding gene from pea.. Plant physiology, 2003.
  56. De Hoff P, Hirsch AM. Nitrogen comes down to earth: report from the 5th European Nitrogen Fixation Conference.. Molecular plant-microbe interactions : MPMI, 2003.
  57. Karlowski WM, Hirsch AM. The over-expression of an alfalfa RING-H2 gene induces pleiotropic effects on plant growth and development.. Plant molecular biology, 2003.
  58. Lum MR, Li Y, Larue TA, David-Schwartz R, Kapulnik Y, Hirsch AM. Investigation of Four Classes of Non-nodulating White Sweetclover (Melilotus alba annua Desr.) Mutants and Their Responses to Arbuscular-Mycorrhizal Fungi.. Integrative and comparative biology, 2002.
  59. Wo HH, Kuleck G, Hirsch AM, Hawes MC. Flavonoids: signal molecules in plant development.. Advances in experimental medicine and biology, 2002.
  60. Hirsch AM, Lum MR, Downie JA. What makes the rhizobia-legume symbiosis so special?. Plant physiology, 2001.
  61. van Rhijn P, Fujishige NA, Lim PO, Hirsch AM. Sugar-binding activity of pea lectin enhances heterologous infection of transgenic alfalfa plants by Rhizobium leguminosarum biovar viciae.. Plant physiology, 2001.
  62. Brill LM, Evans CJ, Hirsch AM. Expression of MsLEC1- and MsLEC2-antisense genes in alfalfa plant lines causes severe embryogenic, developmental and reproductive abnormalities.. The Plant journal : for cell and molecular biology, 2001.
  63. Hirsch AM. Role of lectins (and rhizobial exopolysaccharides) in legume nodulation.. Current opinion in plant biology, 1999.
  64. McKhann HI, Paiva NL, Dixon RA, Hirsch AM. Expression of genes for enzymes of the flavonoid biosynthetic pathway in the early stages of the Rhizobium-legume symbiosis.. Advances in experimental medicine and biology, 1998.
  65. Fang Y, Hirsch AM. Studying early nodulin gene ENOD40 expression and induction by nodulation factor and cytokinin in transgenic alfalfa.. Plant physiology, 1998.
  66. van Rhijn P, Fang Y, Galili S, Shaul O, Atzmon N, Wininger S, Eshed Y, Lum M, Li Y, To V, Fujishige N, Kapulnik Y, Hirsch AM. Expression of early nodulin genes in alfalfa mycorrhizae indicates that signal transduction pathways used in forming arbuscular mycorrhizae and Rhizobium-induced nodules may be conserved.. Proceedings of the National Academy of Sciences of the United States of America, 1997.
  67. Wycoff KL, van Rhijn P, Hirsch AM. The ribosomal protein P0 of soybean (Glycine max L. Merr.) has antigenic cross-reactivity to soybean seed lectin.. Plant molecular biology, 1997.
  68. Niner BM, Brandt JP, Villegas M, Marshall CR, Hirsch AM, Valdés M. Analysis of partial sequences of genes coding for 16S rRNA of actinomycetes isolated from Casuarina equisetifolia nodules in Mexico.. Applied and environmental microbiology, 1996.
  69. Hirsch AM, Kirchanski SJ. Publish and Perish? The Rules of the Game.. Plant physiology, 1995.
  70. Brill LM, Konyalian VR, Hirsch AM. A 1.7-kilobase genomic fragment of alfalfa DNA contains the lectin gene Mslec1.. Plant physiology, 1995.
  71. Hirsch AM, McKhann HI, Reddy A, Liao J, Fang Y, Marshall CR. Assessing horizontal transfer of nifHDK genes in eubacteria: nucleotide sequence of nifK from Frankia strain HFPCcI3.. Molecular biology and evolution, 1995.
  72. McKhann HI, Hirsch AM. Isolation of chalcone synthase and chalcone isomerase cDNAs from alfalfa (Medicago sativa L.): highest transcript levels occur in young roots and root tips.. Plant molecular biology, 1994.
  73. McKhann HI, Hirsch AM. Does Rhizobium avoid the host response?. Current topics in microbiology and immunology, 1994.
  74. Löbler M, Hirsch AM. A gene that encodes a proline-rich nodulin with limited homology to PsENOD12 is expressed in the invasion zone of Rhizobium meliloti-induced alfalfa root nodules.. Plant physiology, 1993.
  75. Löbler M, Hirsch AM. An alfalfa (Medicago sativa L.) cDNA encoding an acidic leghemoglobin (MsLb3).. Plant molecular biology, 1992.
  76. Hirsch AM. Developmental biology of legume nodulation.. The New phytologist, 1992.
  77. Löbler M, Hirsch AM. RFLP mapping of the abp1 locus in maize (Zea mays L.).. Plant molecular biology, 1990.