Bioaccumulation and Effects of Aluminium on Plant Growth in Three Culture Plants Species

Abstract

Aluminium toxicity is one of the major factors that limit plant growth and development in many acid soils, by multiple, and still poorly understood mechanisms. In this paper, the aluminium content determinations were done through atomic absorption spectrometry method, on seedlings of three culture plants, Helianthus annuus L. (sunflower), Sinapis alba L. (white mustard) and Triticum aestivum L. (wheat), grown in hydroponic conditions with different aluminium concentrations (50, 100 and 250 mg/kg) expose. AAS data were correlated with biometrical determinations (shoot length and dry biomass) and leaf pigments concentration assessment. Results emphasize that none of the selected species accumulates aluminium in aboveground organs such as shoots and leaves, indicating that root exclusion and/or sequestration are the strategies employed by all three species for limiting aluminium toxicity. In all three studied species, both average shoot length and dry biomass tended to be lower at higher aluminium concentration. Due to high variations among seedlings grown at the same aluminium concentration expose, these differences are not statistically significant. In sunflower seedlings, chlorophyll a and carotenoids had maximum values at the highest aluminium concentration (250 mg/kg), while chlorophyll b was more abundant at 100 mg/kg. In mustard, all pigments had their maximum concentrations at 100 mg/kg, while in wheat, an aluminium concentration increase progressively lead to a drop in pigments concentration.

Carotenoids, Flavonoids, Total Phenolic Compounds Content and Antioxidant Activity of Indigenous Pyracantha coccinea M. Roem. Fruits

“…While flavonoid content in Pyracantha was less studied, some data are available from related genera, like Cotoneaster sp. The literature mention that Cotoneaster horizontalis would contain 6800 mg/kg [17], while Cotoneaster multiflorus fruit contain up to 53700 mg/kg DW flavonoids (amount highly dependent on solvents used) [18][19][20][21][22].…”

Behavior of Cd Accumulation in Sinapis alba L. in the Presence of Essential Elements (Ca, Mg, Fe, Zn, Mn, Cu, Ni)

“…A study on germination and development of mustard seeds in Cr-polluted soil indicated that white mustard is tolerant to high Cr levels and has hyper accumulative abilities [13]. Another study that looked at the effect of aluminum (Al) whose toxicity can inhibit mustard germination and development in acidic soils indicated that it does not accumulate in plant matter, but productivity may be impaired [14].…”

Separation/Preconcentration of Al(III) from Water Samples via Sorptive-flotation Technique Using Silica Nanoparticles Modified with Folic Acid

“…Also, it is concerned with several diseases as Parkinson and Alzheimer's [4,5], bone softening, renal failure and anaemia [6]. Al presents in soils naturally in the form of minerals as, alumino-silicates (kaolin, feldspars and micas), hydroxides and oxides [7]. Foods and water are the most important sources for Al exposure.…”