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- Title
ETIOLOGY AND DEVELOPMENT OF HYPERPLASIA INDUCED BY <em>STREBLONEMA</em> SP. (PHAEOPHYTA) ON MEMBERS OF THE LAMINARIALES (PHAEOPHYTA).
- Authors
Apt, Kirk E.
- Abstract
Filaments of Streblonema sp. isolated from hyperplasia (galls) on Nereocystis luetkeana (Mert.) Post. et Rupr. induced similar gall growths when inoculated on young sporophytes of Nereocystis luetkeana, Macrocystis integrifolia Bory, and Laminaria japonica Aresch. Filaments were irregularly branched and uniseriate with cells 5-8 μm in diameter and 10-30 μm long. Growth under varied cultured conditions produced unilocular sporangia. Zoospores released from the sporangia germinated into identical filaments which also formed unilocular sporangia. Gall tissue orignated from the innermost cells of the epidermal meristematic zone. When infected these cells divided in an irregular and unorganized manner. The resulting structure was a pronounced departure from normal morphology.
- Subjects
HYPERPLASIA; ETIOLOGY of diseases; BROWN algae; LAMINARIALES
- Publication
Journal of Phycology, 1988, Vol 24, Issue 1, p28
- ISSN
0022-3646
- Publication type
Article
- DOI
10.1111/j.1529-8817.1988.tb04453.x