Effects of thermopriming and bacteria-mediated heat-stress acclimation strategies on seed yield and quality criteria in Brassica napus cv Aviso and Camelina sativa cv Calena.

The effects of intense heat during the reproductive phase of two Brassica species-B. napus and C. sativa-could be alleviated by a prior gradual increase exposure and/or PGPR inoculation.

Impact of PGPR inoculation on root morphological traits and root exudation in rapeseed and camelina: interactions with heat stress.

Root exudation is involved in the recruitment of beneficial microorganisms by trophic relationships and/or signalling pathways. Among beneficial microorganisms, Plant Growth-Promoting Rhizobacteria (PGPR) are known to improve plant growth and stress resistance. These interactions are of particular importance for species that do not interact with mycorrhizal fungi, such as rapeseed (Brassica napus L.

Repeated heat stress events during the reproductive phase impact the dynamic development of seeds in Brassica napus L.

Many studies pointed out the deleterious effects of high temperatures events during the crop reproductive phase on seed yield and quality. However, plant responses to repeated stressing events remain poorly understood, while the increased frequency of extreme abiotic constraints, such as spring and summer heat waves, has been proven as one feature of the on-going and future climate change. The responses of oilseed rape plants subjected to three heat stress sequences that differed in the intensity, the timing of application, the duration and the frequency of the high temperature events were investigated throughout the seed development and maturation phases under controlled conditions.