Physiological characterization of grapevine rootstocks grown in soil with increasing zinc doses

Abstract

A B S T R A C TThis study aimed to evaluate the performance of grapevine rootstocks under increasing levels of Zn in the soil and to identify physiological variables that can be used as indicators of excess of Zn in the soil. The rootstocks SO4, Paulsen1103, IAC572, IAC313 and 420A were grown in pots containing soil, which received Zn doses of 0, 20, 40, 80 or 160 mg kg

Rootstocks for Grapevines Now and into the Future: Selection of Rootstocks Based on Drought Tolerance, Soil Nutrient Availability, and Soil pH

“…A few studies have compared zinc uptake ability of grapevine rootstocks (Table 4). Rootstocks SO4 and 420A showed superior capacity of zinc uptake in low zinc soils (20-40 mg/kg), and zinc concentrations in the roots and shoots of these rootstocks were signifcantly higher compared to Paulsen 1103 [93]. Te canopy size and dry weight of scions grafted to SO4 and 420A rootstocks were approximately 1-2 times higher than those grafted to Paulsen 1103 and IAC313 rootstocks in low zinc soil [151].…”

“…C-repeat binding factor/dehydration responsive element binding protein 1 (CBF/DREB1) genes also play important roles in salt stress management. Overexpression of VrCBF1 and VrCBF4 isolated from V. riparia can increase the survivability of A. thaliana Col-0 exposed to drought- 1212 Couderc [3,86] 1616 Couderc [89] 3309 Couderc [84] 41 B Millardet et de Grasset [84,88,90,91] 420A [84,92,93] 44-53 M [84] Börner [94] Dog ridge [84] Fercal [10,12,95,96] Freedom [84,97] Georgikon 28 [10] Gravesac [84,98] Harmony [97] Kober 5BB [10,12,98,99] Merbein 5489 [94] Merbein 5512 [94] Paulsen 775 [100,101] Paulsen 1103 [3,5,45 induced saline stress [119]. Tis may explain why Cabernet Sauvignon grafted to several descendants of V. riparia, including Börner and Freedom, exhibited enhanced Na + exclusion ability and lower sodium content in the petiole [84].…”

“…Zinc toxicity is another relevant situation. Soil zinc concentration above 80 mg/kg can cause problems, where high level of zinc content in the shoot may inhibit electron transfer in photosynthesis and reduce the biosynthesis of chlorophyll and eventually result in decreased leaf area and pruning mass of grapevines [92,93]. Te phenomenon of zinc toxicity has gained increased attention in recent years, and its infuence may be more severe than zinc defciency, especially in vineyards using zinc-based fungicides [151].…”

Zinc toxicity and tolerance-related responses in Inga marginata and Allophylus edulis seedlings

“…However, plants may adopt different strategies to deal with high levels of metals, such as Zn, in their growth environment. Tolerance mechanisms mainly comprise detoxification processes based on complexation by organic chelators, Zn sequestration in vacuoles (Zalamena et al, 2015), and antioxidant system activation. These strategies help protect the metabolism of plants subjected to Zn excess.…”

Mineral composition, chlorophyll fluorescence and zinc biofortification in Vigna unguiculata fertilized with bulk and nanoparticulate zinc oxides

“…In black oats grown in soil contaminated with Zn and Cu, changes in F0 and Fm resulted in a decline in photochemical efficiency (Tiecher et al 2016). In vine seedlings grown in soil with different concentrations of Zn, damage to the plants' photosynthetic apparatus was also observed through the variables F0 and Fm, which provide useful indicators of the level of stress caused by the element (Zalamena et al 2015).…”