INVESTIGADORES
SANCHEZ PUERTA Maria virginia
artículos
Título:
Zoospore adhesion and germination upon non-toxic substances in Pseudulvella sp (Chlorophyta)
Autor/es:
SÁNCHEZ PUERTA, M. V., P.I. LEONARDI & E.J. CÁCERES
Revista:
HYDROBIOLOGIA
Editorial:
SPRINGER
Referencias:
Año: 2004 vol. 513 p. 255 - 258
ISSN:
0018-8158
Resumen:
One of the
most significant processes in the life history of an alga is the colonization
of a new substratum. In the present study, we evaluate whether different
organic compounds, such as agar, gelatine, chicken albumin, glycerine and
polylysine, promote zoospore recruitment and germination in a periphytic,
fresh-water green microalga of the genus Pseudulvella (Chlorophyta). Given the low adhesion
capacity of its zoospores a series of experiments were conducted in order to
find a substance and its optimal concentration that increases zoospore
recruitment and allows us to follow the processes of settlement, attachment and
germination of zoospores. Polylysine significantly increased the number of zoospores
attached with no significant effect on the germination rate. The minimum effective
concentration of polylysine for improving zoospore settlement was 0.1%.