The effects of the substratum on the morphology of the rhizoids of Fucus germlings

Hardy, F. G.; Moss, Betty

doi:10.1016/0302-3524(79)90081-1

Cited by 16 publications

(13 citation statements)

References 15 publications

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“…We suggest that the results of the rhizoid experiment are to be interpreted in terms of general fitness of the germlings, rather than as an indication of their strength of attachment. On a natural, rugous substrate, it is the growth pattern of the rhizoids, rather than their length, that is decisive for their anchoring strength (Hardy & Moss, 1979). We preferred to use a smooth substrate so that the rhizoids would grow straight along the surface and become more easily measurable.…”

Section: Discussionmentioning

confidence: 99%

Negative direct effects of nutrient enrichment on the establishment ofFucus vesiculosusin the Baltic Sea

Bergström

Berger²,

Kautsky

2003

European Journal of Phycology

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The direct effect of nutrient enrichment on the early life stages of Fucus vesiculosus in the brackish Baltic Sea was followed in laboratory experiments. The effects of nitrate and phosphate on the rate of attachment, on germination and on the development of the primary rhizoid were assessed. The rate of attachment was slow compared with similar studies in a marine environment. The zygotes of the control reached only 9% attachment within the first 12 h. A significant negative effect of nitrate enrichment on the attachment rate and germination was observed. Germling survival was reduced by over 20% in moderate nitrate enrichment, and by over 50% in high nitrate (21 JlM) and high phosphate (1.0 JlM) enrichment dUring the first 10 days. The effect on the development of the primary rhizoid was also significant, but less severe. The results suggest that eutrophication may have a direct negative effect on the recruitment of Fucus vesiculosus, unrelated to the secondary effects normally attributed to the decline of Fucus in the Baltic Sea.

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Section: Discussionmentioning

confidence: 99%

Negative direct effects of nutrient enrichment on the establishment ofFucus vesiculosusin the Baltic Sea

Bergström

Berger²,

Kautsky

2003

European Journal of Phycology

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“…Certainly surface energy properties have been reported to modify the morphogenesis of algal attachment systems with important implications for their adhesive strength. For example, Hardy & Moss (1979) reported the primary rhizoid of Fucus germlings to grow long and thin on low energy Teflon surfaces and were unable to form a secure attachment. Fletcher (1976), Fletcher & Baier (1984) and grew germlings of a range of green, brown and red algae on surfaces varying in surface energy and revealed marked differences in the extent of outward growth, morphogenetic appearance and adhesive strength of the rhizoids in each alga (Figs 1621).…”

Section: Primary Rhizoid Growth and Adhesionmentioning

confidence: 99%

The settlement, attachment and establishment of marine algal spores

Fletcher¹,

Callow²

1992

British Phycological Journal

267

147

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“…The platform studied was painted in the splash zone area where Enteromorpha was the dominant fouling organism. The morphology of algal rhizoids is influenced by the surface relief of the substratum but there is no evidence to suggest that the chemical nature of the substratum has any effect on algal settlement (Hardy and Moss 1979).…”

Section: Discussionmentioning

confidence: 99%