A study of mechanisms of Al sup 3+ toxicity and tolerance in wheat (triticum aestivum) roots

Journal Article · Fri Mar 31 23:00:00 EST 1989 · Plant Physiology, Supplement; (USA)

OSTI ID:7189418

Rincon, M; Gonzales, R ^[1]; Ownby, J ^[2]

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1. Noble Foundation, Ardmore, OK (USA)
2. Oklahoma State Univ., Stillwater (USA)

Yield reduction of most agricultural crops in acid soils is correlated with increasing concentrations of free aluminum in the soil solution. In wheat (Triticum aestivum), Al{sup 3+} accumulates in the root tips inhibiting their growth. Two-dimensional gel electrophoresis analysis of proteins isolated from the root tips indicates that Al{sup 3+} induces changes in the accumulation of soluble proteins in both susceptible and tolerant wheat cultivars after 24h of Al{sup 3+} treatment at concentrations that inhibit root growth. To determine whether or not these proteins are accumulated as a result of gene activation, RNA will be extracted from the tips of control and treated roots and translated in vitro. The translated proteins will be analyzed by 2-D gel electrophoresis. Possible mechanisms of Al{sup 3+} tolerance and toxicity in wheat will be discussed.

• OSTI ID: 7189418
• Journal Information: Plant Physiology, Supplement; (USA), Journal Name: Plant Physiology, Supplement; (USA) Vol. 89:4; ISSN PPYSA; ISSN 0079-2241
• Country of Publication: United States
• Language: English

Related Subjects

560300* -- Chemicals Metabolism & Toxicology
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALUMINIUM COMPOUNDS
CEREALS
ELECTROPHORESIS
GRASS
GROWTH
INHIBITION
LILIOPSIDA
MAGNOLIOPHYTA
NUCLEIC ACIDS
ORGANIC COMPOUNDS
PLANT GROWTH
PLANTS
PROTEINS
RNA
ROOTS
TOLERANCE
TOXICITY
WHEAT