TITLE:
Relationship of Trace Elements Concentration and Growth Rate in Alsidium triquetrum (Rhodophyta)
AUTHORS:
Arsenio J. Areces, Ruben Cabrera, Jhoana Díaz-Larrea, Ligia Collado-Vides
KEYWORDS:
Alsidium, Growth Rate, Manganese, Trace Elements
JOURNAL NAME:
American Journal of Plant Sciences,
Vol.14 No.3,
March
31,
2023
ABSTRACT: Minerals and trace elements content and concentration in marine algae
vary depending on species morphology and physiology; as well as growing
environmental conditions. Despite this variability, accumulation of magnesium,
and especially iron, seems to be common in Chlorophyta; while Rhodophyta and
Heterokontophyta show higher affinity to manganese. The red agarophyte Alsidium
triquetrum was used to analyze the
relationship between metal concentration, environmental conditions and growth
rate. Specimens grown in situ showed a large variability of Fe,
Mn, Mg, and Al, in thallus tissue concentrations. Further, a compelling relationship between the growth rate and
the thallus concentration of Mg and Mn, Zn, and Al was detecte. Manganese, unlike the other trace elements
analyzed showed a positive linear relationship between growth rate and tissue
content during the period of greatest vegetative growth.