Negative Effects on Photosynthesis and Chloroplast Pigments Exposed to Lead and Aluminum: A Meta-Analysis

Neto, Antônio Rodrigues da Cunha; Ambrósio, Alexandra dos Santos; Wolowski, Marina; Westin, Tainara Bettiol; Govêa, Kamilla Pacheco; Carvalho, Marília; Barbosa, Sandro

doi:10.1590/01047760202026022711

Cited by 10 publications

(7 citation statements)

References 13 publications

(35 reference statements)

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“…In addition, Al toxicity accounts for several adverse effects, such as increased oxidative stress, limitations in gas exchange, reduced photosynthetic pigment synthesis, and nutritional imbalance. These effects show that Al is a limiting factor in plant metabolism (Cunha Neto et al, 2020).…”

Section: Study Site and Experiments Conductionmentioning

confidence: 91%

Silicon as an attenuator of the toxic effects of aluminum in Schinus terebinthifolius plants

Aguilar,

Mattos,

Wertonge

et al. 2023

Braz. J. Biol.

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Aluminum (Al) is highly toxic to plants, since it causes stress and inhibits plant growth. Silicon (Si) is known to mitigate the stress caused by Al in several plant species. Thus, the current study aims to investigate the soothing effects of Si on morphophysiological and photosynthetic variables, and the attributes associated with oxidative stress in Schinus terebinthifolius plants exposed to Al. Treatments have followed a completely randomized design, with three repetitions based on the following Al/Si combinations (in mM): Treatment 1: 0 Al + 0 Si; Treatment 2: 0 Al + 2.5 Si; Treatment 3: 1.85 Al + 0 Si; Treatment 4: 1.85 Al + 2.5 Si; Treatment 5: 3.71 Al + 0 Si; Treatment 6: 3.71 Al + 2.5 Si. Each sampling unit consisted of a tray with 15 plants, totaling forty-five per treatment. Shoot and root morphological variables, photosynthetic variables, photosynthetic pigments, hydrogen peroxide concentration, lipid peroxidation (MDA), guaiacol peroxidase (POD) and superoxide dismutase (SOD) enzymes, and non-enzymatic antioxidant such as Ascorbic acid (AsA) and non-protein thiol (NPSH) concentration were assessed. Root growth inhibition followed by changes in root morphological variables have negatively affected root and shoot biomass production in plants only subjected to Al. However, adding 2.5 mM Si to the treatment has mitigated the toxic effects caused by 1.85 mM of aluminum on S. terebinthifolius plants.

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Section: Study Site and Experiments Conductionmentioning

confidence: 91%

Silicon as an attenuator of the toxic effects of aluminum in Schinus terebinthifolius plants

Aguilar,

Mattos,

Wertonge

et al. 2023

Braz. J. Biol.

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“…Doubling the colchicine concentration from 15 to 30 µM increased the leaf surface area, yet decreased the chlorophyll content index, although not significantly different. It seems that an increase in the concentration of colchicine up to 30 µM damaged the chloroplast organelles, causing them to reduce the chlorophyll content (Cunha Neto et al, 2020;Kim et al, 2021). Adding colchicine at the concentrations of 15 and 30 μM, resulted a higher average of chlorophyll content index compared to oryzalin, though not widely different.…”

Section: A Growth Responsementioning

confidence: 95%

THE EFFECTIVENESS OF COLCHICINE AND ORYZALIN ON POLYPLOIDY INDUCTION IN TEAK (Tectona grandis Linn. f.) IN VITRO

Fauzan,

Supriyanto,

Mulyono

et al. 2024

Ina.J.For.Res

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Indonesian government has launched a community plantation forests program that would be beneficial for remedying shortage in domestic demand for teak wood every year. This program needs to be supported by the availability of quality seeds resources and quality seedlings utilizing polyploid teak (Tectona grandis). Our study aimed to examine the effectiveness of colchicine and oryzalin to modify diploid into polyploid T. grandis based on growth response, morphological, anatomical and cytological alteration, as well as the acclimatization ability of polyploid plantlets. The materials used were aseptic lateral shoots consisting of nodal segments which were immersed in antimitotic agents at the concentration of 0, 15 and 30 μM for 5 days, then cultured on regeneration medium until the 8 weeks and followed by acclimatization. The results showed that colchicine at the concentration of 30 μM was the most effective to induce polyploidy of plantlets in the parameter of high growth rate, the length of internodes, the number of leaf plantlets and increase the leaf surface area and the significant chlorophyll index content compared to the control. Anatomical analysis of polyploid was characterized by increasing the leaf thickness, stomata size, decreased stomatal density and increased chloroplast content in guard cells. Based on cytological examination on polyploidy plantlet, there was an increased in the number of chromosomes in the cell nucleus. The acclimatization of polyploid successfully induced rooting and a 100% survival rate of grown plantlets. Polyploid seedlings were able to grow and well adapted to the new environment of acclimatization

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“…Moreover, high concentrations of Al have been reported to damage thylakoid membranes and replace compounds in the chlorophyll metabolic pathway (Marques et al 2018). Aluminum can also affect chlorophyll biosynthesis by inhibiting δaminolavulinic acid dehydratase activity, which accounts for chlorophyll molecule and cytochrome formation (Cunha Neto et al 2020). Therefore, higher concentrations of this ion can change chlorophyll and carotenoid composition, which can limit plant metabolic potential (Mendes et al 2018).…”

Section: Aluminummentioning

confidence: 99%

“…The bioaccumulation of these metals can be found at different environmental levels (Huihui et al 2020). In particular, metals such as cadmium (Cd) and aluminum (Al) are potentially toxic to different organisms even at low concentrations (Cunha Neto et al 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Aluminum is one of the most abundant metals on Earth's crust (Zhou et al 2017). Its toxicity is one of the biggest limitations to plant yield in acidic soils in tropical and subtropical sites worldwide (Cunha Neto et al 2020). Brazilian soils are mostly weath-ered and acidic due to high Al and manganese (Mn) contents, as well as to low sum and saturation of bases (Cunha et al 2018).…”

Section: Introductionmentioning

confidence: 99%

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Can species Cedrela fissilis Vell. be used in sites contaminated with toxic aluminum and cadmium metals?

Kuinchtner¹,

Oliveira²,

Aguilar³

et al. 2021

iForest

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Negative Effects on Photosynthesis and Chloroplast Pigments Exposed to Lead and Aluminum: A Meta-Analysis

Cited by 10 publications

References 13 publications

Silicon as an attenuator of the toxic effects of aluminum in Schinus terebinthifolius plants

Silicon as an attenuator of the toxic effects of aluminum in Schinus terebinthifolius plants

THE EFFECTIVENESS OF COLCHICINE AND ORYZALIN ON POLYPLOIDY INDUCTION IN TEAK (Tectona grandis Linn. f.) IN VITRO

Can species Cedrela fissilis Vell. be used in sites contaminated with toxic aluminum and cadmium metals?

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