Physiological, anatomical and ultrastructural effects of aluminum on Styrax camporum, a native Cerrado woody species

Bressan, Anna Carolina Gressler; Silva, Giselle S; Banhos, Otávia F. A. A.; Tanaka, Francisco André Ossamu; Habermann, Gustavo

doi:10.1007/s10265-020-01210-2

Cited by 9 publications

(4 citation statements)

References 52 publications

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“…2020; Bressan et al . 2020). The pH of the aerated solution was monitored daily and maintained at 4.0 ± 0.1 (for all treatments) to maintain the Al as soluble as possible, and nutrient solution was totally replaced every 15 days.…”

Section: Methodsmentioning

confidence: 99%

“…The nutrient solution was based on that proposed by Clark (1975), modified to examine Al responses on Cerrado woody species (Banhos et al 2016;Bittencourt et al 2020;Bressan et al 2020;Bressan et al 2021) (Banhos et al 2016;Bittencourt et al 2020;Bressan et al 2020). The pH of the aerated solution was monitored daily and maintained at 4.0 AE 0.1 (for all treatments) to maintain the Al as soluble as possible, and nutrient solution was totally replaced every 15 days.…”

Section: Nutrient Solutionmentioning

confidence: 99%

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Absence of aluminium compromises root integrity, reduces leaf hydration and Rubisco performance in Qualea grandiflora, an Al‐accumulating species

et al. 2023

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Aluminium (Al) is toxic to most plants. Nevertheless, some species accumulate Al without showing toxicity symptoms. Previous studies have evidenced Al in chloroplasts of Al‐accumulating species from the Cerrado vegetation in South America. We ask whether Al increases carbon assimilation through enhanced apparent efficiency of Rubisco. Seedlings of the Al‐accumulator Qualea grandiflora (Vochysiaceae) were grown in nutrient solution with 0, 740, and 1480 μm Al. Growth parameters, relative leaf water content, Al concentration in organs, gas exchange and apparent carboxylation efficiency (measured from A/Ci curves) were evaluated for 60 days. Plants without Al showed no root growth, necrotic roots, low gas exchange rates, and decreased apparent carboxylation efficiency. Al‐treated plants, however, showed new white roots and increased root biomass leading to higher leaf hydration, and apparent carboxylation efficiency was higher in these plants. Increased Al available in the nutrient solution increased Al accumulation in plant organs. Absence of Al compromised root integrity in Q. grandiflora, thus limiting leaf hydration. No positive direct effect of Al on Rubisco was evidenced in Al‐treated plants.

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Section: Methodsmentioning

confidence: 99%

Section: Nutrient Solutionmentioning

confidence: 99%

Absence of aluminium compromises root integrity, reduces leaf hydration and Rubisco performance in Qualea grandiflora, an Al‐accumulating species

et al. 2023

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“…Reduced developmental rates and physiological changes may be some symptoms related to high Al concentrations in non-Al accumulating Neotropical savannah plants. The inhibition of root growth [103], the lack of lateral roots [150], and a low biomass of stems and leaves [141,148,151] have been demonstrated in plants growing in the presence of high Al concentrations. According to Čiamporová [152], the inhibition of root growth may be due to Al impregnation of root cell walls that promotes unequal expansion and changes in tissue organization.…”

Section: Neotropical Savannah Plants Live In Nutrient-poor Soils Withmentioning

confidence: 99%

“…Regarding the physiological responses, previous studies have demonstrated that CO 2 assimilation rate and stomatal conductance were reduced in Al nonaccumulating species submitted to high Al concentrations [150,151,156]. The leaf gas exchange performance of Al-sensitive species has been associated with the lack of lateral roots [150,157,158], which are the plant's water uptake site.…”

Section: Neotropical Savannah Plants Live In Nutrient-poor Soils Withmentioning

confidence: 99%

Responses of Neotropical Savannah Plant Species to Abiotic Stresses: A Structural and Functional Overview

Castro¹,

Kuster²

2021

Abiotic Stress in Plants

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Plants under field conditions are subject to different types of abiotic stresses such as drought, salinity, and light excess that adversely affect their growth and survival. In addition, several studies have pointed out the effect of climate change such as an increase in the concentration of atmospheric CO 2 , as well as an increase in global temperature on the distribution and wealth of plants. Adaptation to abiotic stress and survival occurs on different scales, at the cellular level for each individual, and requires a range of strategies, whether morphological, physiological, molecular or structural. Such strategies may be determinant in the distribution of plant species in natural habitats, depending on ecological adaptations shaped by the evolutionary history of species. In this chapter, we discuss recent information about mechanisms of plant adaptation to abiotic stress in the Neotropical savannah based on the cell and individual scales.

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Plant Response to Toxic Metals: Emerging Sources, Phytohormone Role, and Tolerance Responses

Gavassi

Carvalho

Bressan

et al. 2023

Plant Hormones and Climate Change

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Physiological, anatomical and ultrastructural effects of aluminum on Styrax camporum, a native Cerrado woody species

Cited by 9 publications

References 52 publications

Absence of aluminium compromises root integrity, reduces leaf hydration and Rubisco performance in Qualea grandiflora, an Al‐accumulating species

Absence of aluminium compromises root integrity, reduces leaf hydration and Rubisco performance in Qualea grandiflora, an Al‐accumulating species

Responses of Neotropical Savannah Plant Species to Abiotic Stresses: A Structural and Functional Overview

Plant Response to Toxic Metals: Emerging Sources, Phytohormone Role, and Tolerance Responses

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