Results 161 to 170 of about 6,283 (209)
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Hydrobiologia, 1996
The brown alga Laminaria saccharina is the dominant subtidal macroalga in Kiel Bay, western Baltic. It is infected by the microscopic brown alga, Streblonema aecidioides. Infected thalli may show symptoms of Streblonema disease, i.e. alterations of blade and stipe, ranging from dark spots to heavy deformations and completely crippled thalli.
Akira F. Peters, Britta Schaffelke
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The brown alga Laminaria saccharina is the dominant subtidal macroalga in Kiel Bay, western Baltic. It is infected by the microscopic brown alga, Streblonema aecidioides. Infected thalli may show symptoms of Streblonema disease, i.e. alterations of blade and stipe, ranging from dark spots to heavy deformations and completely crippled thalli.
Akira F. Peters, Britta Schaffelke
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Journal of Phycology, 2009
As part of a long‐term study on the biology and ecology of the intertidal kelp Lessonia nigrescens Bory, we report on the occurrence of gall development on this alga, identified the possible causal agent, and assessed the extent of the phenomenon in two wild stands of the host.
Daniela, Thomas +5 more
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As part of a long‐term study on the biology and ecology of the intertidal kelp Lessonia nigrescens Bory, we report on the occurrence of gall development on this alga, identified the possible causal agent, and assessed the extent of the phenomenon in two wild stands of the host.
Daniela, Thomas +5 more
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Phlorotannins of phaeophycea Laminaria ochroleuca
Phytochemistry, 1980Abstract From the mixture of acetylated phenols of Laminaria ochroleuca several fractions consisting of one or more components were isolated and analysed. Several substances, new or known from other seaweeds were identified: tetraphlorethol-A-nonacetate, fucophlorethol-B-octacetate, fucodiphlorethol-C-decacetate, pentafuhaloltridecacetate, and ...
Marieluise Koch +2 more
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2019
The content of carotenoid fucoxanthin was studied in six species of brown algae (Scytosiphon lomentaria (Lyngb.) Link, Petalonia zosterifolia (Reinke) Kuntze, Punctaria latifolia Grev., Desmarestia viridis (O.F.M??ller) J.V. Lamour., Ectocarpus silicuzeus (Dillwyn) Lyngb. and Cystoseira barbata (Stackh.) C.
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The content of carotenoid fucoxanthin was studied in six species of brown algae (Scytosiphon lomentaria (Lyngb.) Link, Petalonia zosterifolia (Reinke) Kuntze, Punctaria latifolia Grev., Desmarestia viridis (O.F.M??ller) J.V. Lamour., Ectocarpus silicuzeus (Dillwyn) Lyngb. and Cystoseira barbata (Stackh.) C.
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A survey of translocation in laminariales (Phaeophyceae)
Marine Biology, 1976A survey of translocation of photoassimilates in 13 genera of Laminariales is presented. All showed long-distance transport of 14C-labeled products from mature source tissue to meristematic sinks (haptera and intercalary growing regions). In plants with several laminae forming one frond, older laminae may provide assimilates for the growth of younger ...
K. Schmitz, C. S. Lobban
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CHROMOSOME NUMBERS IN THE PHAEOPHYCEAE
Canadian Journal of Genetics and Cytology, 1967Introduction The first chromosome numbers in the Phaeophyceae were recorded at the turn of the present century by Farmer and Willian~s (24, 25) and Strasburger (100) for some of the Fucaceae, and Mottier (66) and IVilliams (113) for Dictyotn dicbotonm, a member of the Dictoyotaceae. With thc notable esception of Knight's (48) work on several species in
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Dictyota dichotoma (Phaeophyceae): Identification of the Sperm Attractant
Science, 1981Freshly released eggs of the marine brown alga Dictyota dichotoma secrete a substance that attracts spermatozoids. This compound has been identified as n -butyl-cyclohepta-2,5-diene. It is closely related to attractants in several other brown algae and confirms that a relation exists between ...
Mueller, D. +4 more
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Plant regeneration from protoplasts of Sphacelaria (Phaeophyceae)
Planta, 1988Protoplast were isolated from a filamentous brown alga, Sphacelaria sp. (Sphacelariales, Phaeophyta), using alginate-lyases extracted from marine molluscs, and commercial pectinase and cellulase. Yields were about 4000 protoplasts per gram of fresh tissue.
G, Ducreux, B, Kloareg
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2021
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