@article{oai:sapporo-u.repo.nii.ac.jp:00004903,
 author = {工藤, 利彦 and クドウ, トシヒコ and KUDO, Toshihiko},
 journal = {札幌大学女子短期大学部紀要<サッポロ ダイガク ジョシ タンキ ダイガクブ キヨウ>. -- (AN00074536)1号 (昭58.2)-, = 通巻21号 (昭58.2)-. -- 札幌 : 札幌大学, 1983.2-  注記: "Sapporo University Women's Junior College journal"のタイトル  の種類変更: 裏表紙タイトル(-32・33合併号 (平10.11))→並列タイトル(No  . 34 (1999.9)-) ; 表紙の責任表示"札幌大学"は32・33合併号 (平10.11)ま  で ; 奥付に表示の編集者: 札幌大学女子短期大学部紀要委員 (-32・33合併  号 (平10.11)) ; 大きさ変更: 26cm (-32・33合併号 (平10.11))→21cm (No  . 34 (1999.9)-) ; 出版者: 札幌大学女子短期大学部 (<No. 34 (1999.9)>-  )  ISSN: 02888211  別タイトル: Sapporo University Women's Junior College journal  継続前誌: <a href = "/cgi-bin/shsproc?id=AA11395336">札幌大学教養部女子短期大学部紀要. [B]},
 month = {Mar},
 note = {P, The morphological development and life history of a Polysiphonia species (Ceramiales, Rhodophyta) were investigated by culture experiment. This alga was reported as Polysiphonia urceolata f. lepadicola by Segi in 1951. Morphological stability and plasticity were assessed in several features, which have been adopted as taxonomic criteria for the genus Polysiphonia. The following features are confirmed as morphological stability in this alga: (1) Thallus is composed of slender upright axes, and intricately entangled prostrate axes; (2) Thallus is soft and flaccid in texture; (3) Thallus produces adventitious branches on the lowermost portion of the main axis in the early stage, and also on the upper portion of upright axes in the late stage; (4) Thallus is ecorticated with four periaxial cells; (5) Rhizoids are formed without septation; (6) Determinate branches have sharply pointed apices; (7) Endogenous axillary branchlets are formed; (8) Vegetative trichoblasts are rarely formed; (9) Carpogonial branch is composed of four cells; (10) Spermatangial branchlets are formed replacing the whole trichoblasts, they are terete to cylindrical in shape with sterile tips; (11) Tetrasporangia are formed in a straight line, on the last two orders of ordinary branchlets and on axillary branchlets. These features are appropriate taxonomic criteria. The external appearance of individual plants, length/diameter ratios of segments showed phenotypic variation according to the growth stage, temperatures and photoregimes.},
 pages = {87--113},
 title = {Developmental morphology of a Polysiphonia species (Ceramiales, Rhodophyta) in a culture experiment},
 volume = {47},
 year = {2006}
}