Getting ready for the ozone battle vertically transmitted fungal endophytes have transgenerational positive effects in plants

Ground-level ozone is a global air pollutant with high toxicity and represents a threat to plants and microorganisms. Although beneficial microorganisms can improve host performance, their role in connecting environmentally induced maternal plant phenotypes to progeny (transgenerational effects [TGE]) is unknown. We evaluated fungal endophyte-mediated consequences of maternal plant exposure to ozone on performance of the progeny under contrasting scenarios of the same factor (high and low) at two stages: seedling and young plant. With no variation in biomass, maternal ozone-induced oxidative damage in the progeny that was lower in endophytesymbiotic plants. This correlated with an endophyte-mediated higher concentration of proline, a defence compound associated with stress control. Interestingly, ozone induced TGE was not associated with reductions in plant survival. On the contrary, there was an overall positive effect on seedling survival in the presence of endophytes. The positive effect of maternal ozone increasing young plant survival was irrespective of symbiosis and only expressed under high ozone condition. Our study shows that hereditary microorganisms can modulate the capacity of plants to transgenerationally adjust progeny phenotype to atmospheric change.

Bibliographic Details

Main Authors:	Ueno, Andrea Celeste, Gundel, Pedro Emilio, Molina Montenegro, Marco A., Ramos, Patricio, Ghersa, Claudio Marco, Martínez Ghersa, María Alejandra
Format:	Texto biblioteca
Language:	eng
Subjects:	AIR POLLUTION, EPICHLOË OCCULTANS, LOLIUM MULTIFLORUM, MATERNAL EFFECT, OXIDATIVE STRESS, PLANT MICROORGANISM INTERACTION, RISING GROUND LEVEL OZONE, SURVIVAL, SYMBIOSIS, TRANSGENERATIONAL EFFECT, ,
Online Access:	http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=54775 http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber= http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=
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