Otto Geiger | Centro de Ciencias Genómicas

Inv. Tit. C T.C. Definitivo

Semblanza

Otto Geiger estudió biología en la Universidad de Hohenheim en Stuttgart, Alemania y después de estudiar a quinoproteínas y su grupo prostético piroloquinolina quinona en el Instituto de Microbiología, recibió su título de doctor con la distinción “summa cum laude” en 1987 en dicha Universidad. Como un becario Feodor Lynen financiado por la Fundación Alexander von Humboldt de Alemania hizo una estancia posdoctoral con Eugene P. Kennedy en Harvard Medical School, Boston, USA, trabajando sobre la biosíntesis de glucanos cíclicos en bacterias Gram-negativas. Subsecuentemente investigó, junto con Ben Lugtenberg y Herman Spaink, la biosíntesis de los oligosacáridos de lipoquitina, moléculas señal que causan la formación de nódulos en las raíces de sus plantas hospedaderas leguminosas” en la Universidad de Leiden, Holanda. Entre 1993 y 1999, el Dr. Geiger fue Investigador Lider en el Departamento de Biotecnología de la Universidad Técnica de Berlín donde hizo su habilitación (cualificado para cátedra universitaria) en 1997 para ser Docente de Bioquímica. Otto Geiger se integró al Centro de Ciencias Genómicas (anteriormente Centro de Investigación sobre Fijación de Nitrógeno) de la Universidad Nacional Autónoma de México (Cuernavaca) en 1999 y fue International Research Scholar (2002-2006) del Howard Hughes Medical Institute (HHMI). Actualmente, es profesor de la Licenciatura en Ciencias Genómicas, Investigador Titular C y Responsable del Grupo de Investigación “Interacciones entre Pro- y Eucariontes”. El grupo de investigación de Geiger descubrió tanto la vía de la fosfatidilcolina sintasa, cual es una de las vías principales para formar fosfatidilcolina (lecitina) en bacterias, como la vía de biosíntesis de los lípidos de ornitina, que son lípidos bioactivos ampliamente distribuidos en membranas bacterianas. Recientemente, descubrió varios mecanismos moleculares de remodelaje de lípidos, que ocurren en membranas de bacterias en respuesta a diferentes tipos de estrés. Actualmente está estudiando las funciones moleculares de la fosfatidilcolina en bacterias y la biosíntesis, transporte y función de esfingolípidos en bacterias. Además es editor para la revista BMC Microbiology y para el Handbook of Hydrocarbon and Lipid Microbiology. Es Investigador Nacional nivel III y pertenece al PRIDE con el nivel D.

Ligas

OrcID
Scopus

Teléfono: (777) 3131697
Correo: [email protected]

Publicaciones

Año	Publicación	PMID
2024	Muñoz-Echeverri, L.M., Benavides-López, S., Geiger, O., Trujillo-Roldán, M.A., Valdez-Cruz, N.A.. (2024). "Bacterial extracellular vesicles: biotechnological perspective for enhanced productivity.". World Journal Of Microbiology & Biotechnology. 40(6):-. [doi:10.1007/s11274-024-03963-7]	38642254
2024	García-Ledesma, J.D., Cárdenas-Torres, L., Martínez-Aguilar, L., Chávez-Martínez, A.I., Lozano, L., López-Lara, I.M., Geiger, O.. (2024). *"Phosphatidylcholine-deficient suppressor mutant of Sinorhizobium* meliloti, altered in fatty acid synthesis, partially recovers nodulation ability in symbiosis with alfalfa (Medicago sativa).".** PLANT JOURNAL. ():-. [doi:10.1111/tpj.16661]	38341846
2023	Geiger, O., Sanchez-Flores, A., Padilla-Gomez, J., Esposti, M.D.. (2023). "Multiple approaches of cellular metabolism define the bacterial ancestry of mitochondria.". Science advances. 9(32):-. [doi:10.1126/sciadv.adh0066]	37556552
2023	López-Lara, I.M., Geiger, O.. (2023). "Membrane lipid composition defines membrane protein spectrum.". TRENDS IN MICROBIOLOGY. 31(4):323-325. [doi:10.1016/j.tim.2023.02.004]	36813608
2023	Arroyo-Herrera, I., Román-Ponce, B., Bustamante-Brito, R., Guevara-Luna, J., Larios-Serrato, V., Carro, L., Igual, J.M., Geiger, O., Sánchez-Reyes, A., Santos, P.E.D.L., Wang, E.T., Vásquez-Murrieta, M.S.. (2023). "Microbacterium Plantarum sp. nov. and Microbacterium thalli sp. nov., two endophytic metal-resistant bacteria isolated from Sphaeralcea angustifolia (Cav.) G. Don and Prosopis laevigata (Humb. et Bonpl. ex Willd) M.C. Johnston.". International Journal Of Systematic And Evolutionary Microbiology. 73(9):-. [doi:10.1099/ijsem.0.006052]	37754346
2022	Padilla-Gómez, J., Olea-Ozuna, R.J., Contreras-Martínez, S., Morales-Tarré, O., García-Soriano, D.A., Sahonero-Canavesi, D.X., Poggio, S., Encarnación-Guevara, S., López-Lara, I.M., Geiger, O.. (2022). "Specialized acyl carrier protein used by serine palmitoyltransferase to synthesize sphingolipids in Rhodobacteria .". Frontiers in Microbiology. 13():-. [doi:10.3389/fmicb.2022.961041]	35992722
2021	Olea-Ozuna, R.J., Poggio, S., EdBergström,, Quiroz-Rocha, E., García-Soriano, D.A., Sahonero-Canavesi, D.X., Padilla-Gómez, J., Martínez-Aguilar, L., López-Lara, I.M., Thomas-Oates, J., Geiger, O.. (2021). "Five structural genes required for ceramide synthesis in Caulobacter and for bacterial survival.". Environmental Microbiology. 23(1):143-159. [doi:10.1111/1462-2920.15280]	33063925
2021	Soto, Maria J., Lopez-Lara, Isabel M., Geiger, Otto, Romero-Puertas, Maria C., van Dillewijn, Pieter. (2021). "Rhizobial Volatiles: Potential New Players in the Complex Interkingdom Signaling With Legumes.". Frontiers In Plant Science. 12():-. [doi:10.3389/fpls.2021.698912]	34239533
2021	Geiger, O., Sohlenkamp, C., Vera-Cruz, D., Medeot, D.B., Martínez-Aguilar, L., Sahonero-Canavesi, D.X., Weidner, S., Pühler, A., López-Lara, I.M.. (2021). "ExoS/ChvI Two-Component Signal-Transduction System Activated in the Absence of Bacterial Phosphatidylcholine.". Frontiers In Plant Science. 12():-. [doi:10.3389/fpls.2021.678976]	34367203
2020	Pech-Canul, Á.d.L.C., Rivera-Hernández, G., Nogales, J., Geiger, O., Soto, M.J., López-Lara, I.M.. (2020). *"Role of Sinorhizobium* meliloti and Escherichia coli Long-Chain Acyl-CoA Synthetase FadD in Long-Term Survival".** Microorganisms. 8(4):-. [doi:10.3390/microorganisms8040470]	32225039
2018	López-Lara, I.M., Nogales, J., Pech-Canul, Á., Calatrava-Morales, N., Bernabéu-Roda, L.M., Durán, P., Cuéllar, V., Olivares, J., Alvarez, L., Palenzuela-Bretones, D., Romero, M., Heeb, S., Cámara, M., Geiger, O., Soto, M.J.. (2018). "2-Tridecanone impacts surface-associated bacterial behaviours and hinders plant–bacteria interactions". Environmental Microbiology. 20(6):2049-2065. [doi:10.1111/1462-2920.14083]	29488306
2018	López Lara, Isabel María, Geiger, Otto. (2018). "Formation of fatty acids". Biogenesis of Fatty Acids, Lipids and Membranes. ():44-55. [doi:10.1007/978-3-319-50430-8_5]
2018	Geiger, Otto, Sohlenkamp, Christian, López Lara, Isabel María. (2018). "Formation of bacterial glycerol-based membrane lipids: pathways, enzymes, reactions.". Biogenesis of Fatty Acids, Lipids and Membranes. ():87-107. [doi:10.1007/978-3-319-50430-8_8]
2018	Geiger, Otto, Padilla Gómez, Jonathan, López Lara, Isabel María. (2018). "Bacterial sphingolipids and sulfonolipids.". Biogenesis of Fatty Acids, Lipids and Membranes. ():273-289. [doi:10.1007/978-3-319-50430-8_12]
2018	Sahonero Canavesi, Diana Ximena, López Lara, Isabel María, Geiger, Otto. (2018). "Membrane lipid degradation and lipid cycles in microbes.". Aerobic Utilization of Hydrocarbons, Oils and Lipids. ():1-24. [doi:10.1007/978-3-319-39782-5_38-1]
2017	López-Lara, I.M., Geiger, O.. (2017). "Bacterial lipid diversity". Biochimica Et Biophysica Acta-Molecular And Cell Biology Of Lipids. 1862(11):1287-1299. [doi:10.1016/j.bbalip.2016.10.007]	27760387
2017	Angel Vences-Guzman, Miguel, Goetting-Minesky, M. Paula, Guan, Ziqiang, Castillo-Ramirez, Santiago, America Cordoba-Castro, Luz, Lopez-Lara, Isabel M., Geiger, Otto, Sohlenkamp, Christian, Fenno, J. Christopher. (2017). *"1,2-Diacylglycerol choline phosphotransferase catalyzes the final step in the unique Treponema* denticola phosphatidylcholine biosynthesis pathway".** Molecular Microbiology. 103(5):896-912. [doi:10.1111/mmi.13596]	28009086
2016	Degli Esposti, M., Geiger, O., Martinez-Romero, E.. (2016). "Recent developments on bacterial evolution into eukaryotic cells". Evolutionary Biology: Convergent Evolution, Evolution Of Complex Traits, Concepts And Methods. ():187-202. [doi:10.1007/978-3-319-41324-2_12]
2016	Sahonero-Canavesi, Diana X., Zavaleta-Pastor, Maritza, Martinez-Aguilar, Lourdes, Lopez-Lara, Isabel M., Geiger, Otto. (2016). "Defining substrate specificities for lipase and phospholipase candidates". JOVE-JOURNAL OF VISUALIZED EXPERIMENTS. 2016(117):-. [doi:10.3791/54613]	27911408
2015	Sohlenkamp, C., Geiger, O.. (2015). "Bacterial membrane lipids: Diversity in structures and pathways". Fems Microbiology Reviews. 40(1):133-159. [doi:10.1093/femsre/fuv008]	25862689
2015	Sahonero-Canavesi, D.X., Sohlenkamp, C., Sandoval-Calderón, M., Lamsa, A., Pogliano, K., López-Lara, I.M., Geiger, O.. (2015). *"Fatty acid-releasing activities in Sinorhizobium* meliloti include unusual diacylglycerol lipase".** Environmental Microbiology. 17(9):3391-3406. [doi:10.1111/1462-2920.12814]	25711932
2015	Escobedo-Hinojosa, W.I., Vences-Guzmán, M.Á., Schubotz, F., Sandoval-Calderón, M., Summons, R.E., López-Lara, I.M., Geiger, O., Sohlenkamp, C.. (2015). *"OlsG (Sinac-1600) Is an ornithine lipid N-Methyltransferase from the planctomycete Singulisphaera acidiphila".* JOURNAL OF BIOLOGICAL CHEMISTRY. 290(24):15102-15111. [doi:10.1074/jbc.M115.639575]	25925947
2015	Angel Vences-Guzman, Miguel, Guan, Ziqiang, Itzel Escobedo-Hinojosa, Wendy, Roberto Bermudez-Barrientos, Jose, Geiger, Otto, Sohlenkamp, Christian. (2015). *"Discovery of a bifunctional acyltransferase responsible for ornithine lipid synthesis in Serratia* Proteamaculans".** Environmental Microbiology. 17(5):1487-1496. [doi:10.1111/1462-2920.12562]	25040623
2015	Sohlenkamp, Christian, Geiger, Otto, Solis Oviedo, Rosa Lidia. (2015). "ESTUDIANDO LA SÍNTESIS DE FOSFATIDILCOLINA EN BACTERIAS: DE LÍPIDOS DE MEMBRANA A PROTEÍNAS DE MEMBRANA". Proteínas: En la intersección entre las matemáticas, la física, la química y la biología. ():-.
2015	Aguilar, C., Flores, N., Riveros-McKay, F., Sahonero-Canavesi, D., Carmona, S.B., Geiger, O., Escalante, A., Bolívar, F.. (2015). *"Deletion of the 2-acyl-glycerophosphoethanolamine cycle improve glucose metabolism in Escherichia coli* strains employed for overproduction of aromatic compounds".** Microbial Cell Factories. 14(1):194-194. [doi:10.1186/s12934-015-0382-6]	26627477
2013	Geiger, O, Lopez-Lara, IM, Sohlenkamp, C. (2013). "Phosphatidylcholine biosynthesis and function in bacteria". Biochimica Et Biophysica Acta-Molecular And Cell Biology Of Lipids. 1831(3):503-513. [doi:10.1016/j.bbalip.2012.08.009]	22922101
2013	Vences, M., Guan, Z.Q., Bermúdez, J., Geiger, O., Sohlenkamp, C.. (2013). "Agrobacteria lacking ornithine lipids induce more rapid tumour formation". Environmental Microbiology. 15(3):895-906. [doi:10.1111/j.1462-2920.2012.02867.x]	22958119
2012	Vences, M., Geiger, O., Sohlenkamp, C.. (2012). "Ornithine lipids and their structural modifications: From A to E and beyond". Fems Microbiology Letters. 335(1):1-10. [doi:10.1111/j.1574-6968.2012.02623.x]	22724388
2012	Solis, R., Martínez-Morales, F., Geiger, O., Sohlenkamp, C.. (2012). *"Functional and topological analysis of phosphatidylcholine synthase from Sinorhizobium* meliloti".** Biochimica Et Biophysica Acta-Molecular And Cell Biology Of Lipids. 1821(4):573-581. [doi:10.1016/j.bbalip.2012.01.016]	22333179
2012	Higareda, M.F., Geiger, O, Mendoza, L., Mendez-Sánchez, R.A.. (2012). "Evidence of codon usage in the nearest neighbor spacing distribution of bases in bacterial genomes". PHYSICA A-STATISTICAL MECHANICS AND ITS APPLICATIONS. 391(4):1255-1269. [doi:10.1016/j.physa.2011.10.035]
2011	Pech, A., Nogales, J., Miranda-Molina, A., Álvarez, L., Geiger, O., Soto, M.J., López, I.. (2011). "FadD is required for utilization of endogenous fatty acids released from membrane lipids". Journal Of Bacteriology. 193(22):6295-6304. [doi:10.1128/JB.05450-11]	21926226
2011	González, N., López, I., Reyes-Lamothe, R., Taylor, A.M., Sumpton, D., Thomas-Oates, J., Geiger, O.. (2011). *"The dioxygenase-encoding olsD* gene from Burkholderia cenocepacia causes the hydroxylation of the amide-linked fatty acyl moiety of ornithine-containing membrane lipids".** Biochemistry. 50(29):6396-6408. [doi:10.1021/bi200706v]	21707055
2011	Landeta, C., Dávalos, A., Cevallos, M., Geiger, O., Brom, S., Romero, D.. (2011). *"Plasmids with a chromosome-like role in Rhizobia".* Journal Of Bacteriology. 193(6):1317-1326. [doi:10.1128/JB.01184-10]	21217003
2011	Vences, M., Guan, Z.Q., Ormeño, E., González, N., López, I., Martínez, M., Geiger, O., Sohlenkamp, C.. (2011). *"Hydroxylated ornithine lipids increase stress tolerance in Rhizobium* tropici CIAT899".** Molecular Microbiology. 79(6):1496-1514. [doi:10.1111/j.1365-2958.2011.07535.x]	21205018
2010	Geiger, Otto, Sohlenkamp, Christian, López Lara, Isabel María. (2010). "Formation of bacterial membrane lipids: pathways, enzymes, reactions". Handbook of Hydrocarbon and Lipid Microbiology Hydrocarbons, Oils, and Lipids: Diversity, Properties and Formation. ():396-405.
2010	Geiger, Otto, Gonzalez-Silva, Napoleon, Lopez-Lara, Isabel M., Sohlenkamp, Christian. (2010). "Amino acid-containing membrane lipids in bacteria". Progress In Lipid Research. 49(1):46-60. [doi:10.1016/j.plipres.2009.08.002]	19703488
2010	López Lara, Isabel María, Geiger, Otto. (2010). "Formation of fatty acids". Handbook of Hydrocarbon and Lipid Microbiology Hydrocarbons, Oils, and Lipids: Diversity, Properties and Formation. ():385-394.
2010	Geiger, Otto. (2010). "Lipids and Legionella virulence". Handbook of Hydrocarbon and Lipid Microbiology Hydrocarbons, Oils, and Lipids: Diversity, Properties and Formation. ():3195-3202.
2010	Medeot, Daniela B., Sohlenkamp, Christian, Dardanelli, Marta S., Geiger, Otto, Garcia de Lema, Mirta, Lopez-Lara, Isabel M.. (2010). *"Phosphatidylcholine levels of peanut-nodulating Bradyrhizobium* sp. SEMIA 6144 affect cell size and motility".** Fems Microbiology Letters. 303(2):123-131. [doi:10.1111/j.1574-6968.2009.01873.x]	20030724
2010	Davila-Martinez, Yadira, Laura Ramos-Vega, Ana, Contreras-Martinez, Sandra, Encarnacion, Sergio, Geiger, Otto, Lopez-Lara, Isabel M.. (2010). *"SMc01553 is the sixth acyl carrier protein in Sinorhizobium* meliloti 1021".** MICROBIOLOGY-SGM. 156(1):230-239. [doi:10.1099/mic.0.033480-0]	19797355
2010	Ingram, Brian O., Sohlenkamp, Christian, Geiger, Otto, Raetz, Christian R. H.. (2010). *"Altered lipid A structures and polymyxin hypersensitivity of Rhizobium* etli mutants lacking the lpxE and LpxF phosphatases".** Biochimica Et Biophysica Acta-Molecular And Cell Biology Of Lipids. 1801(5):593-604. [doi:10.1016/j.bbalip.2010.02.001]	20153447
2010	Zavaleta-Pastor, Maritza, Sohlenkamp, Christian, Gao, Jun-Lian, Guan, Ziqiang, Zaheer, Rahat, Finan, Turlough M., Raetz, Christian R. H., Lopez-Lara, Isabel M., Geiger, Otto. (2010). *"Sinorhizobium* meliloti phospholipase C required for lipid remodeling during phosphorus limitation".** PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA. 107(1):302-307. [doi:10.1073/pnas.0912930107]	20018679
2009	Sandoval-Calderon, Mario, Geiger, Otto, Guan, Ziqiang, Barona-Gomez, Francisco, Sohlenkamp, Christian. (2009). *"A eukaryote-like cardiolipin synthase is present in Streptomyces* coelicolor and in most actinobacteria".** JOURNAL OF BIOLOGICAL CHEMISTRY. 284(26):17383-17390. [doi:10.1074/jbc.M109.006072]	19439403
2009	Laura Ramos-Vega, Ana, Davila-Martinez, Yadira, Sohlenkamp, Christian, Contreras-Martinez, Sandra, Encarnacion, Sergio, Geiger, Otto, Lopez-Lara, Isabel M.. (2009). *"SMb20651 is another acyl carrier protein from Sinorhizobium* meliloti".** MICROBIOLOGY-SGM. 155(1):257-267. [doi:10.1099/mic.0.022079-0]	19118366
2008	Conover, Gloria M., Martinez-Morales, Fernando, Heidtman, Matthew I., Luo, Zhao-Qing, Tang, May, Chen, Cui, Geiger, Otto, Isberg, Ralph R.. (2008). *"Phosphatidylcholine synthesis is required for optimal function of Legionella pneumophila* virulence determinants".** CELLULAR MICROBIOLOGY. 10(2):514-528. [doi:10.1111/j.1462-5822.2007.01066.x]	17979985
2008	Hacker, Stephanie, Sohlenkamp, Christian, Aktas, Meriyem, Geiger, Otto, Narberhaus, Franz. (2008). *"Multiple phospholipid N-methyltransferases with distinct substrate specificities are encoded in Bradyrhizobium* japonicum".** Journal Of Bacteriology. 190(2):571-580. [doi:10.1128/JB.01423-07]	17993534
2008	Geiger, O., Lopez-Lara, I. M., Sohlenkamp, C.. (2008). "ALTERED FORMATIONS OF SPECIAL EUBACTERIAL MEMBRANE LIPIDS AFFECT BACTERIAL INTERACTIONS WITH EUKARYOTIC HOSTS". Biological Nitrogen Fixation: Towards Poverty Alleviation Through Sustainable Agriculture. 42():245-246.
2008	Sepulveda, Edgardo, Perez-Mendoza, Daniel, Ramirez-Romero, Miguel A., Soto, Maria J., Lopez-Lara, Isabel M., Geiger, Otto, Sanjuan, Juan, Brom, Susana, Romero, David. (2008). *"Transcriptional interference and repression modulate the conjugative ability of the symbiotic plasmid of Rhizobium* etli".** Journal Of Bacteriology. 190(12):4189-4197. [doi:10.1128/JB.00041-08]	18424522
2008	Sepulveda, E., Perez-Mendoza, D., Ramirez-Romero, M. A., Soto, M. J., Lopez-Lara, I. M., Geiger, O., Sanjuan, J., Brom, S., Romero, D.. (2008). "Modulation of conjugative activity of rhizobial symbiotic plasmids by repression and transcriptional interference". FEBS JOURNAL. 275(1):49-49.
2008	Angel Vences-Guzman, Miguel, Geiger, Otto, Sohlenkamp, Christian. (2008). *"Sinorhizobium* meliloti mutants deficient in phosphatidylserine decarboxylase accumulate phosphatidylserine and are strongly affected during symbiosis with Alfalfa".** Journal Of Bacteriology. 190(20):6846-6856. [doi:10.1128/JB.00610-08]	18708506
2007	Sohlenkamp, Christian, Galindo-Lagunas, Kanaan A., Guan, Ziqiang, Vinuesa, Pablo, Robinson, Sally, Thomas-Oates, Jane, Raetz, Christian R. H., Geiger, Otto. (2007). *"The lipid lysyl-phosphatidylglycerol is present in membranes of Rhizobium* tropici CIAT899 and confers increased resistance to polymyxin B under acidic growth conditions".** Molecular Plant-Microbe Interactions. 20(11):1421-1430. [doi:10.1094/MPMI-20-11-1421]	17977153
2007	Sepulveda, Edgardo, Perez-Mendoza, Daniel, Munoz, Socorro, Ramirez-Romero, Miguel A., Soto, Maria Jose, Cervantes, Laura, Herrera-Cervera, Jose A., Lopez-Lara, Isabel Sabel, Geiger, Otto, Sanuan, Juan, Brom, Susana, Romero, David. (2007). *"Regulation of conjugal transfer of the Rhizobium* etli Sym plasmid.".** Plasmid. 57(2):220-221.
2007	Medeot, D.B., Sohlenkamp, Christian, Geiger, Otto, García, M.B., López Lara, Isabel María. (2007). "Phosphatidycholine fuction in rhizobial strains nodulating peanut: genes and enzymatic activites". Biocell. 31():134-.
2006	Reeve, Wayne G., Brau, Lambert, Castelli, Joanne, Garau, Giovanni, Sohlenkamp, Christian, Geiger, Otto, Dilworth, Michael J., Glenn, Andrew R., Howieson, John G., Tiwaril, Ravi P.. (2006). *"The Sinorhizobium* medicae WSM419 IpiA gene is transcriptionally activated by FsrR and required to enhance survival in lethal acid conditions".** MICROBIOLOGY-SGM. 152(10):3049-3059. [doi:10.1099/mic.0.28764-0]	17005985
2006	Sánchez, F., Quinto, C., López Lara, Isabel María, Geiger, Otto. (2006). "Biology of Plant-Microbe Interactions". Proceedings of the 12th International Congress on Molecular Plant-Microbe Interactions. 5():1-717.
2006	Geiger, Otto, Sohlenkamp, Christian, López Lara, Isabel María. (2006). "Function of rhizobial membrane lipids for the symbiosis with legumes". Proceedings of the 12th International Congress on Molecular Plant-Microbe Interactions. 5():132-137.
2006	López Lara, Isabel María, Sohlenkamp, Christian, Geiger, Otto. (2006). "The post-genomic era - What comes next?". Revista Latinoamericana De Microbiologia. 48(1):44-45.	17357573
2005	Rojas-Jimenez, K., Sohlenkamp, C., Geiger, O., Martínez, M., Werner, D., Vinuesa, P.. (2005). *"A CIC chloride channel homolog and ornithine-containing membrane lipids of Rhizobium* tropici CIAT899 are involved in symbiotic efficiency and acid tolerance".** Molecular Plant-Microbe Interactions. 18(11):1175-1185. [doi:10.1094/MPMI-18-1175]	16353552
2005	Lopez-Lara, IM, Gao, JL, Soto, MJ, Solares-Perez, A, Weissenmayer, B, Sohlenkamp, C, Verroios, GP, Thomas-Oates, J, Geiger, O. (2005). *"Phosphorus-free membrane lipids of Sinorhizobium* meliloti are not required for the symbiosis with alfalfa but contribute to increased cell yields under phosphorus-limiting conditions of growth".** Molecular Plant-Microbe Interactions. 18(9):973-982. [doi:10.1094/MPMI-18-0973]	16167767
2004	Geiger, O, Sohlenkamp, C, Martinez-Morales, F, Gao, JL, Zavaleta-Pastor, M, Lopez-Lara, IM. (2004). "Regulation of membrane lipid biosynthesis in eubacteria". FASEB JOURNAL. 18(8, S):3-3.
2004	Sohlenkamp, C, de Rudder, KEE, Geiger, O. (2004). *"Phosphatidylethanolamine Is Not Essential for Growth of Sinorhizobium* meliloti on Complex Culture Media".** Journal Of Bacteriology. 186(6):1667-1677. [doi:10.1128/JB.186.6.1667-1677.2004]	14996797
2004	Geiger, Otto, Martínez Morales, Fernando, Sohlenkamp, Christian, López Lara, Isabel María. (2004). "ROLE OF BACTERIAL PHOSPHATIDYLCHOLINE IN SYMBIOTIC AND PATHOGENIC INTERACTIONS". Biology of Molecular Plant-Microbe Interactions. ():423-426.
2004	Gao, JL, Weissenmayer, B, Taylor, AM, Thomas-Oates, J, Lopez-Lara, IM, Geiger, O. (2004). "Identification of a gene required for the formation of lyso-ornithine lipid, an intermediate in the biosynthesis of ornithine-containing lipids". Molecular Microbiology. 53(6):1757-1770. [doi:10.1111/j.1365-2958.2004.04240.x]	15341653
2004	Sepulveda, Edgardo, Perez-Mendoza, Daniel, Munoz, Socorro, Ramirez-Romero, Miguel A., Soto, Maria Jose, Cervantes, Laura, Herrera-Cervera, Jose A., Lopez-Lara, Isabel Sabel, Geiger, Otto, Sanuan, Juan, Brom, Susana, Romero, David. (2004). *"Identification of functional mob* regions in Rhizobium etli: Evidence for self-transmissibility of the symbiotic plasmid pRetCFN42d".** Journal Of Bacteriology. 186(17):5753-5761. [doi:10.1128/JB.186.17.5753-5761.2004]	15317780
2003	Martinez-Morales, F, Schobert, M, Lopez-Lara, IM, Geiger, O. (2003). "Pathways for phosphatidylcholine biosynthesis in bacteria". MICROBIOLOGY-SGM. 149(12):3461-3471. [doi:10.1099/mic.0.26522-0]	14663079
2003	Lopez-Lara, IM, Sohlenkamp, C, Geiger, O. (2003). "Membrane lipids in plant-associated bacteria: Their biosyntheses and possible functions". Molecular Plant-Microbe Interactions. 16(7):567-579. [doi:10.1094/MPMI.2003.16.7.567]	12848422
2003	Djordjevic, M.A., Chen, H.C., Natera, S., Van Noorden, G., Menzel, C., Taylor, S., Renard, C., Geiger, O., Weiller, G.F.. (2003). *"A global analysis of protein expression profiles in Sinorhizobium* meliloti: Discovery of new genes for nodule occupancy and stress adaptation".** Molecular Plant-Microbe Interactions. 16(6):508-524. [doi:10.1094/MPMI.2003.16.6.508]	12795377
2003	Sohlenkamp, C, Lopez-Lara, IM, Geiger, O. (2003). "Biosynthesis of phosphatidylcholine in bacteria". Progress In Lipid Research. 42(2):115-162. [doi:10.1016/S0163-7827(02)00050-4]	12547654
2002	Weissenmayer, B, Gao, JL, Lopez-Lara, IM, Geiger, O. (2002). "Identification of a gene required for the biosynthesis of ornithine-derived lipids". Molecular Microbiology. 45(3):721-733. [doi:10.1046/j.1365-2958.2002.03043.x]	12139618
2002	Geiger, O., López, I.. (2002). "Rhizobial acyl carrier proteins and their roles in the formation of bacterial cell-surface components that are required for the development of nitrogen-fixing root nodules on legume hosts". Fems Microbiology Letters. 208(2):153-162. [doi:10.1016/S0378-1097(02)00478-0]	11959430
2001	Lopez-Lara, IM, Geiger, O. (2001). "The nodulation protein NodG shows the enzymatic activity of an 3-oxoacyl-acyl carrier protein reductase". Molecular Plant-Microbe Interactions. 14(3):349-357. [doi:10.1094/MPMI.2001.14.3.349]	11277432
2001	Minder, AC, de Rudder, KEE, Narberhaus, F, Fischer, HM, Hennecke, H, Geiger, O. (2001). *"Phosphatidylcholine levels in Bradyrhizobium* japonicum membranes are critical for an efficient symbiosis with the soybean host plant".** Molecular Microbiology. 39(5):1186-1198. [doi:10.1046/j.1365-2958.2001.02325.x]	11251836
2001	Lopez-Lara, IM, Geiger, O. (2001). "Novel pathway for phosphatidylcholine biosynthesis in bacteria associated with eukaryotes". JOURNAL OF BIOTECHNOLOGY. 91(2-3):211-221. [doi:10.1016/S0168-1656(01)00331-5]	11566392
2000	de Rudder, KEE, Lopez-Lara, IM, Geiger, O. (2000). *"Inactivation of the gene for phospholipid N-methyltransferase in Sinorhizobium* meliloti: Phosphatidylcholine is required for normal growth".** Molecular Microbiology. 37(4):763-772. [doi:10.1046/j.1365-2958.2000.02032.x]	10972799
2000	Sohlenkamp, C, de Rudder, KEE, Rohrs, V, Lopez-Lara, IM, Geiger, O. (2000). "Cloning and characterization of the gene for phosphatidylcholine synthase". JOURNAL OF BIOLOGICAL CHEMISTRY. 275(25):18919-18925. [doi:10.1074/jbc.M000844200]	10858449
2000	Weissenmayer, B, Geiger, O, Benning, C. (2000). *"Disruption of a gene essential for sulfoquinovosyldiacylglycerol biosynthesis in Sinorhizobium* meliloti has no detectable effect on root nodule symbiosis".** Molecular Plant-Microbe Interactions. 13(6):666-672. [doi:10.1094/MPMI.2000.13.6.666]	10830266
2000	López-Lara, I.M., Geiger, O.. (2000). "Expression and purification of four different rhizobial acyl carrier proteins". MICROBIOLOGY-SGM. 146(4):839-849. [doi:10.1099/00221287-146-4-839]	10784042
1999	de Rudder, KEE, Sohlenkamp, C, Geiger, O. (1999). "Plant-exuded choline is used for rhizobial membrane lipid biosynthesis by phosphatidylcholine synthase". JOURNAL OF BIOLOGICAL CHEMISTRY. 274(28):20011-20016. [doi:10.1074/jbc.274.28.20011]	10391951
1996	Thomas-Oates, J.E., van den Berg, J.D.J., Bloemberg, G.V., van der Drift, K.M.G.M.,, Geiger, Otto, López Lara, Isabel María, Rademaker, G.J., Spaink, H.P.. (1996). "Structural determination and biosynthetic studies of the rhizobial Nod metabolites: the lipo-chitin oligosaccharides". Mass spectrometry in the Biological Sciences. ():385-401. [doi:10.1007/978-1-4612-0229-5]
1994	Spaink, H.P., Bloemberg, G.V., Wijfjes, A.H.M., Ritsema, T., López Lara, Isabel María, Geiger, Otto, Harteveld, M., Kafetzopoulos, D., van Brussel, A.N.N., Kijne, J.W., Lugtenberg, B.J.J., van der Drift, K.M.G.M., Thomas-Oates, J.E., Potrykus, I., Sautter, C.. (1994). *"The molecular basis of host specificity in the Rhizobium* leguminosarum-plant interaction".** Advances in Molecular Genetics of Plant-Microbe Interactions. Vol. 3 Proceedings of the 7th International Symposium on Molecular Plant-Microbe Interactions, Edinburgh, U.K., June 1994. 3():91-98. [doi:10.1007/978-94-011-0177-6]