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MARINA OMACINI
omacini@ifeva.edu.ar
Education
- Bachelor Biology, Centro de Altos Estudios en Ciencias
Exactas. (C.A.E.C.E.). Egresada: Agosto de 1990. Qualification: 8.6/10.
- Magister Scientiae in Natural Resources. Graduate
School, Faculty of Agronomy, University of Buenos Aires. Advisor:
Rolando J. C. León. Defense: April 1997 Qualification: Distinguished.
- PhD, University of Buenos Aires, Agronomy Area, Alberto
Soriano Graduate School. Advisor: Enrique M. Chaneton. Defense:
April 2005.
Positions / fellowships
- Adjunct Research Scientist, Argentine Research Council
(CONICET)
- Senior Demonstrator, Ecology Department. Faculty of
Agronomy, University of Buenos Aires. Since December 2005.
Professional interests
- Grassland and Agroecosystem Ecology.
- Community dynamics and functioning.
- Symbiosis between grasses and fungi.
Students
- M.
Isabel Miranda, BSc. Thesis in Biology, Faculty of Exact and Natural
Sciences, University of Buenos Aires (co-advisor). Defense: March 2005.
- Cecilia Casas. BSc Thesis in Agronomy, Faculty of Agronomy,
University of Buenos Aires (co-advisor). Defense: March 2006.
- Carolina Feota. Thesis in Agrarian Economy (co-advisor).
Defense: April 2008.
- Maximiliano Mallarini. Thesis in Agronomy (advisor).
Defense: December 2010
- José del Vecchio. Thesis in Agronomy (co-advisor). Defense:
December 2010.
- Gavilan Sebastián. Thesis in Agronomy (advisor). Defense:
May 2011.
- Garcia Parisi. Thesis in Agronomy (advisor). Defense: March
2010
- Ing. Agr. Cecilia Casas. PhD Thesis student, Alberto
Soriano Graduate School, Faculty of Agronomy, Univesity of Buenos Aires
(thesis and scholarship advisor). Ongoing.
- Lic. Luis I. Perez. PhD student, Alberto Soriano Graduate
School, Faculty of Agronomy, Univesity of Buenos Aires (thesis and
scholarship advisor). Ongoing.
- Ing. Agr. Pablo Garcia Parisi. Ph D Thesis student, Alberto
Soriano Graduate School, Faculty of Agronomy, Univesity of Buenos Aires
(thesis and scholarship advisor). Ongoing
- Ing. Agr. Magdalena Druille. Ph D Thesis student, Alberto
Soriano Graduate School, Faculty of Agronomy, Univesity of Buenos Aires
(thesis and scholarship co-advisor). Ongoing.
- Luciano Boyero. Thesis in Environmental Sciences (advisor). Ongoing.
Publications (last 5 years)
Papers in indexed jounals
- Garcia Parisi, P, C Casas, P. Gundel y M. Omacini.
Consequences of grazing on the vertical transmisión o fan fangal
Neotyphodium symbioint in an annual grass population. Austral Ecology
(enviado, 3 junio 2011)
- Miranda, MI , M. Omacini, y EJ. Chaneton.
2011. Environmental context of endophyte symbioses: interacting effects
of water stress and insect herbivory. International Journal of Plant
Science 172: 499-508.
- Uchitel, A, M. Omacini y EJ.
Chaneton.2011. Inherited fungal symbionts enhance establishment of an
invasive annual grass across successional habitats. Oecologia
165: 465-475.
- Casas, M.C., M. Omacini, M.S. Montecchia
y
O. S. Correa. 2011. Microbial community responses to the fungal
endophyte Neotyphodium in Italian ryegrass. Plant and Soil 340:
347-355.
- Gundel, P , M. Omacini, V. Sadras y
CM. Ghersa.2010. The interplay between the effectiveness of the
grass-endophyte mutualism and the genetic variability of the host
plant. Evolutionary applications 3: 538–546.
- Tognetti, P.M., E.J. Chaneton, M. Omacini,
H.J. Trebino y León R.J. C. 2010. León. Exotic vs. Native species
dominate along “modern” successional trajectories on abandoned
farmland. Biological Conservation, 143:2494-2503.
- Rudgers J.A, Davitt A.J., Clay K, Gundel P, M.
Omacini.
2010. Searching for evidence against the mutualistic nature of
hereditary simbiosis: A comment on Faeth (2009). American
Naturalist 176:99-103.
- Omacini, M., Chaneton, E.J., Bush, L. y
CM. Ghersa. 2009. A fungal endosymbiont affects host plant
recruitment through seed and litter mediated mechanisms. Functional
Ecology 23: 1148-1156
- Gundel, P.E., L. A. Garibald, P. M. Tognetti, R. Aragón, C.
M. Ghersa y M. Omacini.
2009. Imperfect vertical transmission of the endophyte Neotyphodium in
exotic grasses occurring in grassland communities of the Flooding Pampa
. Microbial ecology 57: 740-748.
- Gundel, P.E, M. Omacini, A.
Martinez-Ghersa y CM Ghersa. 2008. Herbivory mediates
grass-endophyte relationship: comment. Ecology 89: 3542-3545.
- Gundel, P.E., W.H. Batista, M.Texeira, M.A.
Martinez-Ghersa, M. Omacini
y C.M.Ghersa. 2008. Neotyphodium endophyte infection frequency in
annual grass populations: relative importance of mutualism and
transmission efficiency. Proc. Royal. Soc. B 275: 897-905.
- Omacini, M., T. Eggers, M. Bonkowsky, A.
Gange y TH Jones. 2006. Leaf endophytes affect mycorrhizal status
and growth of co-infected and neighbouring plants . Functional Ecology
20: 226-232.
Book chapters
- Omacini, M.,
Gundel P y M. G. Semmartin.( 2011)- Huellas de la simbiosis
pasto-endofito en el agroecosistema . En: Rizosfera, Biodiversidad y
Agricultura Sustentable. García de Salamone, I.E., Cassan, F.D.
Editores. División de Microbiología Agrícola y Ambiental, Asociación
Argentina de Microbiología (en prensa).
- Chaneton EJ y M. Omacini. (2007).
Bottom-up cascades induced by fungal endophytes in multitrophic
systems. En: Ohgushi T, Craig TP, Price PW (eds). Ecological
Communities: Plant Mediation in Indirect Interaction. Oxford University
Press, Oxford, pags. 164-187.
- Omacini, M., E.J. Chaneton y C.M. Ghersa.
(2005). A hierarchical framework for understanding the ecosystem
consequences of endophyte grass symbioses. En: Roberts, C., West C,
Spiers D. (eds) Neotyphodium in Cool-Season Grasses. Current Research
& Applications. Blackwell publishing. pags. 141-161.
- Omacini, M., Tognetti, P.; Trebino, H y
E.J. Chaneton. (2005). La sucesión en campos de cultivo pampeanos: la
dominancia de plantas exóticas durante los primeros 20 años. En:
Oesterheld, M., Aguiar, M; Ghersa, C.M y J. Paruelo (eds). La
heterogeneidad de la vegetación de los agroecosistemas. Un homenaje a
Rolando León. Ed. Facultad de Agronomía UBA.
Complete publications listing
Current research areas at the IFEVA
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