Metabolic responses of Vaccinium corymbosum L. cultivars to Al3+ toxicity and gypsum amendment

Alarcón-Poblete, Edith; González‐Villagra, Jorge; Silva, Franklin Magnum de Oliveira; Nunes‐Nesi, Adriano; Inostroza‐Blancheteau, Claudio; Alberdi, Miren; Reyes‐Díaz, Marjorie

doi:10.1016/j.envexpbot.2020.104119

Cited by 4 publications

(2 citation statements)

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“…Thus, it is proposed that the greater Al uptake of G. avellana was due to the fact that it took up the Al excluded by V. corymbosum . Interestingly, V. corymbosum presented higher Al concentrations in the roots than in leaves (36 to 69 times more), a pattern observed in Al-sensitive plants ( Kochian et al., 2004 ; Alarcón-Poblete et al., 2020 ; Cárcamo-Fincheira et al., 2023 ). This trend underscores a limited translocation of Al, thus, confirming the low Al tolerance in the aerial part of the V. corymbosum (Star cultivar) plant.…”

Section: Discussionmentioning

confidence: 74%

“…The presence of Al 3+ triggers a cascade of molecular, physiological and morphological changes in V. corymbosum , culminating in reduced productivity and yield ( Reyes-Díaz et al., 2010 , 2011 ; Inostroza-Blancheteau et al., 2011a , b ; Inostroza-Blancheteau et al., 2013 ; Ulloa-Inostroza et al., 2016 ). Indeed, gypsum amendments are frequently used to ameliorate Al 3+ toxicity in V. corymbosum ( Alarcón-Poblete et al., 2019 , 2020 ). According to the manual of fertilization for V. corymbosum cultivated in southern Chile ( Pinochet et al., 2014 ), the maximum availability of exchangeable Al is 0.2 cmol + kg -1 , above which the V. corymbosum presents Al-toxicity.…”

Section: Methodsmentioning

confidence: 99%

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Do aluminum (Al)-hyperaccumulator and phosphorus (P)-solubilising species assist neighbouring plants sensitive to Al toxicity and P deficiency?

Delgado,

Barra,

Berrios

et al. 2024

Front. Plant Sci.

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We aimed to evaluate the facilitation effects of an aluminum (Al) hyperaccumulator species bearing cluster roots, Gevuina avellana, on the seedling growth and performance of an Al-intolerant and phosphorus (P)-deficient-sensitive plant, Vaccinium corymbosum. For this, seedlings of G. avellana and V. corymbosum were grown alone or together as follows: i) two G. avellana seedlings, ii) one G. avellana + one V. corymbosum and iii) two V. corymbosum, in soil supplemented with Al (as Al2(SO4)3) and in the control (without Al supplementation). We determined relative growth rate (RGR), photosynthetic rate, chlorophyll concentration, lipid peroxidation and Al and nutrient concentration [Nitrogen (N), P, potassium (K), calcium (Ca), magnesium (Mg), sodium (Na), manganese (Mn), iron (Fe), copper (Cu), zinc (Zn), and sulfur (S)] in leaves and roots of both species. The results showed that, in general, G. avellana did not assist V. corymbosum to enhance its RGR nor reduce its Al uptake. However, G. avellana assisted V. corymbosum in enhanced N acquisition and, consequently, to increase its chlorophyll concentration and photosynthetic rate. Besides, V. corymbosum had lower lipid peroxidation in leaves when grown in the soil with high Al supplementation in association with G. avellana. Our results suggest a facilitating effect of G. avellana to V. corymbosum when grown in soils with high Al concentration, by enhancing chlorophyll concentrations and photosynthetic rate, and decreasing the oxidative damage to lipids.

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Section: Discussionmentioning

confidence: 74%