Some rootstocks improve pepper tolerance to mild salinity through ionic regulation

Abstract

Elsevier Penella, C.; González Nebauer, S.; Quinones, A.; San Bautista Primo, A.; López Galarza, SV.; Calatayud, A. (2015). Some rootstocks improve pepper tolerance to mild salinity through ionic regulation. Plant Science. 230:12-22. doi:10.1016Science. 230:12-22. doi:10. /j.plantsci.2014 . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 leaves. This work suggests that using tolerant pepper rootstocks that maintain the scion's ion homeostasis is a promising strategy to provide salinity tolerance and can consequently improve crop performance when faced with farmland salinity.

Salt-tolerant rootstock increases yield of pepper under salinity through maintenance of photosynthetic performance and sinks strength

“…The selection of salt tolerant accessions to be used as rootstocks could be a promising approach to ameliorate the negative effects of salinity on pepper productivity (Penella et al, 2013;Penella et al, 2015). In the present study, we demonstrated that Adige peppers grafted onto the accession A25 were less sensitive to salt stress compared to their ungrafted counterparts.…”

“…Maintenance of shoot and root vigor is dependent mainly on photosynthetic capacity (Duarte et al, 2014;Penella et al, 2015). Photosynthetic activity remained unchanged in A/A25 plants under salt conditions compared to their controls and, therefore, also in the supply of photosynthates to plants, as confirmed by the absence of reduced plant growth.…”

“…After 2 months, A plants were grafted onto A25 (A/A25). The graft was performed by the tube-grafting method (Penella et al, 2015). The ungrafted 'Adige' (A) plants were sown 2 weeks later to obtain plants with a similar biomass to that of the grafted plants at the time of transplantation (10-12 true leaves).…”

“…Leaf lipid peroxidation was estimated with the malondialdehyde (MDA) concentration measurements taken by the thiobarbituric acid reaction, as reported in Penella et al (2015).…”

“…A promising perspective to improve pepper resistance to salinity is the use of grafting of commercial cultivars onto salt-tolerant rootstocks (Penella et al, 2013;Penella et al, 2015).…”