Plasma membrane of younger and outer cells is the primary specific site for aluminium toxicity in roots

Wagatsuma, Tadao; Ishikawa, Shinya; Obata, Hitoshi; Tawaraya, Keitaro; Katohda, Shigeyoshi

doi:10.1007/978-94-011-0221-6_36

Cited by 20 publications

(15 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the DTZ, Al was detectable in the cell walls of epidermal cells after several seconds and in other root tissue by 60 min (with a gradual increase of uptake: epidermis >> outer cortex> middle cortex > inner cortex > stele) (Čiamporová 2002). Therefore, the order of appearance of cell injury with Al occurs in this order in general (Wagatsuma et al 1995). In the study, roots were marked with India ink at 5-mm intervals, and the elongation of each 5-mm region over a 32-h period was investigated (Fig.…”

Section: Discussionmentioning

confidence: 99%

Morphological changes in the apex of pea roots during and after recovery from aluminium treatment

et al. 2010

View full text Add to dashboard Cite

We investigated how the pea (Pisum sativum cv. Harunoka) root, upon return to an Alfree condition, recovers from injury caused by exposure to Al. The growing region of the root during and after treatment with Al was examined by marking the root at intervals with India ink. Alinduced cell death was detected by staining with Evans blue. Root growth in 40 μM Al solution relative to that in Al-free solution (RRG) was approximately 45% from 6 h to12 h after the start of the treatment. However, values of RRG from 12 h to 24 h in Al-free solution for recovery or in the same Al solution were about 75% and 35%, respectively, indicating recovery from Al-induced growth inhibition. Images of the root characterized by zonal staining with Evans blue were observed in the subapical region (more than 1 mm from the tip) in Alstressed roots. However, the interval of the stained zone was widened in the root after recovery from Alinduced growth inhibition, though it was narrower and more densely stained with time in the Al-stressed roots. During the recovery, the root apex may resume elongation in a specified region without Al-induced death or injury in cells detected by Evans blue.

show abstract

Section: Discussionmentioning

confidence: 99%

Morphological changes in the apex of pea roots during and after recovery from aluminium treatment

et al. 2010

View full text Add to dashboard Cite

show abstract

“…Yet, since electrolytic conductance reflects membrane permeability (Ketchie, 1969), after an incubation period of 5 and 24 hours, Al-treated maize roots had 1.6-and 1.5-fold increases on membrane permeability when Al was added at 1.00 and 3.00 mM, respectively (Table 3). Increases in membrane permeability result in increased penetration of Al into the axoplasm of root epidermal cells (Rasmussen, 1968) to affect integrity of plasma membranes (Wagatsuma et al, 1995). Hager et al (1971) and Rayle and Cleland ( 1977) suggested that a plasma membrane-H + ATPases, which pump protons from Each value is the mean ± S.E.…”

Section: B Aluminum Effects On Biomass Productionmentioning

confidence: 99%

Aluminum toxicity in maize: Biomass production and nutrient uptake and translocation

Lidon

Azinheira

Barreiro³

2000

Journal of Plant Nutrition

View full text Add to dashboard Cite

The effect of increasing aluminum (A1) concentrations on root nutrient contents along with the concurrent translocation to the shoot of C 4 plants prompted this study. Two-week-old maize (Zea mays cv XL-72.3) plants were therefore submitted for 20 days to A1 concentrations ranging from 0 to 3.00 mM in a medium with low ionic strength were used as a test system. Aluminum concentrations in root tissues showed a 3-fold increase between 0 and 3.00 mM A1 treatment, and was not detected in the shoot. Root plasma membrane-H + ATPase activity decreased after the 0.33 mg L -1 Al treatment, while

show abstract

“…The symptoms of Al toxicity on plants are swollen, stunted, and crooked roots, and a lack of feeder roots (von Uexküll 1986) and root hairs (Brady et al 1992); thus, the ability of a plant to take up P, as well as water and other nutrients, is impaired. In the plant, free Al binds strongly to P groups in nucleic acids inhibiting division of the germ cells at the root tip (Morimura et al 1978), affects phosphokinase and ATPase activity (Mengel and Kirkby 1982), and inhibits uptake of Ca and damages the plasma membrane of younger and outer cells in roots (Wagatsuma et al 1995).…”

Section: Chemicalmentioning

confidence: 99%

Progress in selected areas of rhizosphere research on P acquisition

et al. 2003

View full text Add to dashboard Cite

Large reserves of P have accumulated in soils of developed countries because additions of P fertiliser to sustain agricultural production have exceeded crop removal. By contrast, in many developing countries in the tropics and subtropics, soil P reserves are gravely low and large additions are required before maintenance requirements begin to decline. In addition, the cost of P fertiliser will increase as the currently accessible deposits of high-grade phosphate rock (PR) diminish. Developing plants that efficiently tap soil P reserves and low grade PR is therefore a priority for agricultural research. For the 50th anniversary of the New Zealand Soil Science Society, this paper reviews research on P efficiency in plants, conducted by staff, students, and research associates of Massey University, in the context of other research into plant mechanisms that enhance P uptake, including effects of root geometry, mycorrhizal associations, and root-induced changes in the soil. Techniques for fractionation of soil P are highlighted. S R 0 2 1 3 0 R h i z o s p h e r e P a c q u i s i t i o n S . N . T r o l o v e e t a l .

show abstract

Plasma membrane of younger and outer cells is the primary specific site for aluminium toxicity in roots

Cited by 20 publications

References 22 publications

Morphological changes in the apex of pea roots during and after recovery from aluminium treatment

Morphological changes in the apex of pea roots during and after recovery from aluminium treatment

Aluminum toxicity in maize: Biomass production and nutrient uptake and translocation

Progress in selected areas of rhizosphere research on P acquisition

Contact Info

Product

Resources

About