Identification of the Far Eastern Species of Laminaria Lamouroux and Saccharina Stackhouse （Laminariales, Phaeophyceae） Based on Morphological Features  

作　　者：Olga N. Selivanova 

机构地区：[1]Laboratory of Hydrobiology, Kamchatka Branch of Pacific Geographical Institute, Far Eastern Division of the Russian Academy ofSciences, Petropavlovsk-Kamchatskii, Kamchatskii Krai 683000, Russia

出　　处：《Journal of Life Sciences》2012年第5期505-512,共8页生命科学（英文版）

摘　　要：Algae of the order Laminariales represent main seaweed resource of Russia, Most important commercial species formerly belonged to Laminaria Lamoroux. However, taxonomic revision of this genus and resurrection of Saccharina Stackhouse based on genetic studies resulted in transfer of most Laminaria species to Saccharina. At the Russian Pacific coasts Saccharina now includes 10 species, while only three species for sure represent Laminaria： L. longipes Bory de Saint-Vincent, L. solidungula J. Agardh, L. yezoensis Miyabe, their placement within Laminaria is supported by genetic data. All examined Far Eastern species of Saccharina are noticed to possess haptera in the form of rhizoids, whereas members of Laminaria have disk-like holdfasts （L. solidungula, L. yezoensis）, or creeping rhizomes （L. longipes）. Three unstudied genetically endemics from the Sea of Okhotsk： L. appressirhiza Petrov et Vozzhinskaya, L. inclinatorhiza Petrov et Vozzhinskaya, L. multiplicata Petrov et Suchovejeva, are still left within Laminaria, but they have rhizoids, so most probably belong to Saccharina. This morphological criterion is inapplicable to Atlantic Laminaria since the type species L. digitata （Hudson） Lamouroux has rhizoids.

关 键 词：LAMINARIA SACCHARINA molecular-genetic studies morphological criterion disk holdfast RHIZOME rhizoids. 

分 类 号：S968.421[农业科学—水产养殖] Q949.751.4[农业科学—水产科学]