PhD program in
  Environmental Sciences
Coordinated by Prof. Giuseppe Corriero

  Defense response of plants to biotic and abiotic stresses

  F. Tommasi, C. Paciolla, C. de Pinto

Plants frequently encounter stresses as external conditions that negatively affect growth development and productivity. Stresses can be biotic,  caused by organism, or abiotic, arising from environmental conditions. A common metabolic consequence occurring in plant cells under stress conditions is an overproduction of reactive oxygen species (ROS). Plants have elaborate different mechanisms to defend themselves against stresses. A major focus of our research group is to study the network of reactions involved in the plant defence to different stresses. Particular attention is paid to understanding the role of ROS as toxic and/or signalling molecules. Another goal of this research topics is to obtain an integrated vision of interplay between cellular compartments involved in ROS production and scavenging.

Published papers (selection) (click to download the pdf)

1.     Marsoni M., Cantara C., de Pinto M.C., Gadaleta C., De Gara L, Bracale M., Vannini C. (2010) C. Exploring the soluble proteome of TBY-2 cells at the switch towards different cell fates in response to heat shocks. Plant Cell Environment 33, 1161-1175.

2.     M. P. Ippolito, C. Fasciano, L. d’Aquino, M. Morgana, F. Tommasi. (2010). Responses of antioxidant systems after exposition to rare earths and their role in chilling stress in common duckweed (Lemna minor L.): a defensive weapon or a boomerang? Archives of  Environmental Contamination and Toxicology 58, 42-52.

3.     D’aquino L., de Pinto M.C., Nardi L., Morgana M., Tommasi F. (2009) Effect of some light rare earth elements on seed germination, seedling growth and antioxidant metabolism in Triticum durum. Chemosphere, 75, 900-905.

4.     Locato V., de Pinto M.C., De Gara L. (2009) Different involvement of the mitochondrial, plastidial and cytosolic ascorbate-glutathione redox enzymes in heat shock responses. Physiologia Plantarum, 135, 296-306.

5.     Locato V., Gadaleta C., De Gara L., de Pinto MC. (2008) Production of reactive species and modulation of antioxidant network in response to heat shock: a critical balance for cell fate. Plant Cell and Environment 31, 1606-1619.

6.     Paciolla C., Ippolito MP., Logrieco A., Dipierro N., Mulè G., Dipierro S. (2008) A different trend of antioxidant defence responses makes tomato plants less susceptible to beauvericin than to T-2 mycotoxin phytotoxicity. Physiological and Molecular Plant Pathology, 72, 3-9.

7.     Logrieco A., Moretti A., Mule G., Paciolla C., Ritieni A. (2008) Advances on the toxicity of the cereal contaminant Fusarium esadepsipeptides. Cereal Research Communication 36, 303-313.

8.     Paradiso A., Berardino R., de Pinto M.C., Sanità di Toppi L.,. Storelli M.M., Tommasi F., De Gara L. (2008) Increase in the ascorbate – glutathione metabolisms as local and systemic responses induced by cadmium in durum wheat plants. Plant Cell Physiology 49, 362-374.

9.     MP.Ippolito, C.Paciolla, L. d’Aquino,  M. Morgana,  F. Tommasi (2007) Effect of rare earth elements on growth and antioxidant metabolism in Lemna minor L, Caryologia, 60 ISSN 0008-7114, 125-128

10.  de Pinto M.C., Paradiso A, Leonetti P, De Gara L. (2006) Hydrogen peroxide, nitric oxide and cytosolic ascorbate peroxidase at the crossroad between defence and cell death. The Plant Journal, 48, 784-795.

11.  Dipierro N., Mondelli D., Paciolla C., Brunetti G., Dipierro S. (2005) Changes in the ascorbate system in the response of pumpkin (Cucurbita pepo L.) roots to aluminium stress. Journal of Plant Physiology, 162, 529-536.

12.  Vacca R.A., de Pinto M.C., Valenti D., Passarella S., Marra E., De Gara L. (2004) Production of reactive oxygen species, alteration of cytosolic ascorbate peroxidase, and impairment of mitochondrial metabolism are early events in heat shock-induced programmed cell death in tobacco bright-yellow 2 cells. Plant Physiology 134, 1100-1112.

13.  Paciolla C, Dipierro N, Mulè G, Logrieco A, Dipierro S. (2004) The mycotoxins beauvericin and T-2 induce cell death and alteration to the ascorbate metabolism in tomato protoplasts. Physiological and Molecular Plant Pathology, 65, 49-56.

14.  De Gara L, de Pinto MC, Tommasi F (2003) The antioxidant systems vis à vis reactive oxygen species during plant-pathogen interaction. Plant Physiology and Biochemistry, 41, 863-870.

15.  de Pinto M.C., Tommasi F., De Gara L. (2002) Changes in the antioxidant systems as part of the signalling pathway responsible for the programmed cell death activated by nitric oxide and reactive oxygen species in tobacco BY-2 cells. Plant Physiology 130, 698-708.

16.  De Gara L., Paciolla C., De Tullio M.C., Motto M., Arrigoni O. (2000) Ascorbate-dependent hydrogen peroxide detoxification and ascorbate regeneration during germination of a highly productive maize hybrid: evidence of an improved detoxification mechanism against reactive oxygen species. Physiologia Plantarum,109,7-13.