Biotechnological strategies for viruses, bacteria and fungi resistance in Solanum tuberosum and other species.

BARRIOS BARÓN, M.P; NAHIRÑAK V,; ALMASIA N I,; VAZQUEZ ROVERE, CECILIA

Buenos Aires

Taller; Seminario-Taller: Genómica y Resistencia a enfermedades; 2018

The potato crop, the third in order of food importance on a world scale, is susceptible to many diseases being the bacteria, fungi, viruses and nematodes the phytopathogenic organisms responsible for the greatest losses of production.Currently, the control of these diseases is carried out through the use of chemical compounds, a strategy that puts the health of the workers performing the tasks in serious risk, can lead to catastrophic results from the ecological point of view and is also extremely expensive.Also, chemical control is sometimes ineffective, which requires additional applications and constant changes in the type of compound to be applied. In this context, and with the aim of developing potato cultivars resistant to these diseases, biotechnological control strategies were designed.Thus, transgenic events were obtained that express genes from both the pathogens (rep-PLRV, CP-LMV) and the host plant (Snakin / GASA genes) that were tolerant to infections caused by PLRV and PVY viruses or in challenges facing to Rhizoctonia solani and Erwinia carotovora.This last strategy was also used for developments of wheat and lettuce events that were resistant to wheat powdery mildew and Sclerotinia sclerotiorum, respectively.In this work the advances and results obtained in the last years corresponding to the characterization of these events will be presented both in controlled conditions and in field trials.