Future prospects include testing whether these variations also occurred in inflorescence of bacterized inflorescence, since this organ is especially sensitive to cold damages. phytofirmans strain PsJN promotes grapevine chilling tolerance using several distinct pathways, whether existing or cold-induced mechanisms. Furthermore, bacterized plants were characterized by a faster and stronger production of H2O2 and subsequent faster detoxication of this oxidative species. When exposed to chilling, bacterized plants exhibited priming of several defence related genes (VvPAL, VvStSy, VvLOX…) as well as priming of the key cold regulator VvCBF4 (Theocharis et al. Before chilling exposure, bacterized plants displayed higher concentrations of carbohydrates known to be involved in cryoprotection (starch, sucrose and raffinose). Molecular and biochemical approaches were investigated to explore several mechanisms by which this endophyte could improve cold tolerance by analyzing: (i) effect on expression of defence and cold related genes, (ii) modulation of H2O2 production and (iii) stimulation of plant primary metabolism. Burkholderia phytofirmans strain PsJN is an endophytic Plant Growth Promoting Rhizobacteria (PGPR) that enhances chilling tolerance of grapevine plants (Ait Barka et al.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |