Polymorphism of response to cobalt excess in individual Vicia faba plants

• Published in: Environmental and experimental botany Vol. 55; no. 3; pp. 221 - 234
• Main Authors: Rancelis, Vytautas, Cesniene, Tatjana, Zvingila, Donatas, Barysas, Dainius, Balciuniene, Laimute, Dapkuniene, Stase
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-03-2006; Elsevier Science
• Subjects: Biological and medical sciences; cobalt; De-etiolation and regeneration effects; DNA polymorphism; etiolation; faba beans; Fundamental and applied biological sciences. Psychology; genetic variation; metal tolerance; molecular sequence data; Multiple metal uptake; nucleotide sequences; Parasitism and symbiosis; plant damage; Plant physiology and development; Plant polymorphism; plant stress; random amplified polymorphic DNA technique; Response to Co excess; Symbiosis; uptake mechanisms; Vicia faba; De-etiolation and regeneration effects; Response to Co excess; Vicia faba; Plant polymorphism; DNA polymorphism; Multiple metal uptake; Seeds; Tolerance; Stress; Regeneration; Leguminosae; Dicotyledones; Angiospermae; Viciafaba; Spermatophyta; Polymorphism
• ISSN: 0098-8472; 1873-7307
• DOI: 10.1016/j.envexpbot.2004.11.002

A high and unique expression of individual plant polymorphism for metal stress has been observed after exposure of seeds of
Vicia faba to cobalt excess. The reproducibility of the phenomenon, the stability of variations in de-etiolation assay, the coincidence of differences in Co uptake and plant injury extent, a simultaneous increase of the uptake of several elements depending on plant injury extent allow to use this phenomenon for studying the evolution of the initial stages of tolerance and hyperaccumulation, multiple metal uptake and the ‘break-through’ effect. The high individual DNA polymorphism revealed by RAPD analysis and different response of individual plants to Co excess are separate, unrelated phenomena.