Physiological and metabolic responses to aluminum toxicity reveal differing resistance mechanisms to long-term exposure in highbush blueberry cultivars

Cárcamo-Fincheira, Paz; Reyes‐Díaz, Marjorie; Omena-García, Rebeca P.; Nunes‐Nesi, Adriano; Inostroza‐Blancheteau, Claudio

doi:10.1016/j.scienta.2022.111665

Cited by 6 publications

(5 citation statements)

References 73 publications

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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 this and others V. corymbosum cultivars (Alarcón-Poblete et al 2020; Cárcamo-Fincheira et al 2023). This trend underscores a limited translocation of Al, thus, con rming its low Al tolerance.…”

Section: Discussionsupporting

confidence: 77%

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

Delgado,

Barra,

Berrios

et al. 2023

Preprint

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Background and Aims 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 P-deficient-sensitive plant, Vaccinium corymbosum. Methods Seedlings of G. avellana and V. corymbosum were grown alone or together as follows: i) 2 G. avellana seedlings, ii) 1 G. avellana + V. corymbosum and iii) 2 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), Al and sulfur (S)) in leaves and roots of both species. Results 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. Conclusions 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: Discussionsupporting

confidence: 77%

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

Delgado,

Barra,

Berrios

et al. 2023

Preprint

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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%

“…for G. avellana and V. corymbosum were 1.2 ± 0.8 and 2.6 ± 0.3 g, respectively. In this study, we used V. corymbosum cultivar Star because according to recent studies that evaluated the resistance to Al toxicity in different cultivars established in Chile, this cultivar emerged as the most Al-sensitive among the ones evaluated ( Cárcamo et al., 2019 ; Cárcamo-Fincheira et al., 2023 ).…”

Section: Methodsmentioning

confidence: 99%

“…In light of this, our study aimed to evaluate the effects of an Al hyperaccumulator species bearing cluster roots, Gevuina avellana Mol ( Delgado et al., 2019 ), on the growth and performance of a neighboring species. For this investigation, we used Vaccinium corymbosum L., an economically important crop species, as a model species sensitive to both Al toxicity ( Cárcamo-Fincheira et al., 2023 ) and P deficiency ( Pinochet et al., 2014 ). Consequently, we posit that species with the dual ability to accumulate Al and solubilize P, may be suitable for the establishment and growth of neighboring plants in soils with high Al content and low P availability, such as volcanic soils in Southern Chile.…”

Section: Introductionmentioning

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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“…Two commercial cultivars of highbush blueberry ( Vaccinium corymbosum L.) with different characteristics were used in this study: the Al-sensitive Star (USOOPP10675P) and the Al-resistant Cargo (US 2013023926OP1). These cultivars differ in aluminum resistance, genetic backgrounds, ecological adaptations, susceptibility to diseases, and soil and environmental requirements [ 48 , 49 , 50 , 51 ]. One-year-old plants (uniform size and foliar area with 40 cm in height) were conditioned in plastic pots containing 18 L of half-strength Hoagland solution [ 52 ] for 2 weeks.…”

Section: Methodsmentioning

confidence: 99%

Effects of Foliar Boron Application on Physiological and Antioxidants Responses in Highbush Blueberry (Vaccinium corymbosum L.) Cultivars

Reyes-Díaz,

Cárcamo-Fincheira,

Tighe-Neira

et al. 2024

Plants

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Boron (B) is a micronutrient crucial for the growth, development, productivity, and quality of crops. However, in areas characterized by acid soil (pHwater < 5.0) and high rainfall, soil B concentration tends to decrease, leading to insufficient supply to crops. This study was aimed at determining the optimal rate of B fertilization to enhance Vaccinium corymbosum L. performance in acid conditions. One-year-old cultivars with contrasting Al resistance (Al-sensitive Star and Al-resistant Cargo) were used. Plants were conditioned in plastic pots containing 18 L of half-ionic-strength Hoagland solution (pH 4.5) for 2 weeks. Thereafter, the following B treatments were applied foliarly: control, without B application (distilled water), 200, 400, and 800 mg L−1 of B as Solubor® for up to 72 h. Photosynthetic performance, root and shoot B levels, antioxidants, and oxidative stress were evaluated. Root and shoot B concentrations increased with the increasing B application, being higher in leaves than in roots of both cultivars. Net photosynthesis decreased at 800 mg L−1 B supply and effective quantum yield of PSII at 72 h in all B treatments. Lipid peroxidation increased in both cultivars at 800 mg L−1 B treatment. Antioxidant activity increased in all B treatments in both cultivars; while, at 400 and 800 mg L−1 B, total phenols increased in leaves of cultivar Star and decreased in cultivar Cargo. In conclusion, optimal B foliar application for highbush blueberry appears to be around 400 mg L−1 B. The appropriate B foliar application could help mitigate potential stress-induced problems in highbush blueberry cultivation. However, the optimal foliar B application should be confirmed in field experiments to help the farmers manage B nutrition.

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Physiological and metabolic responses to aluminum toxicity reveal differing resistance mechanisms to long-term exposure in highbush blueberry cultivars

Cited by 6 publications

References 73 publications

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

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

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

Effects of Foliar Boron Application on Physiological and Antioxidants Responses in Highbush Blueberry (Vaccinium corymbosum L.) Cultivars

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