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| Microscopic observation on the development of Enteromorpha prolifera (Chlorophyta) |
| WANG Jian-wei1, LIN A-peng1, Li Yan-yan1, SHEN Song-dong1, YAN Bin-lun2 |
| 1. Life Sciences College, Soochow University, Suzhou, 2151232, Jiangsu, China; 2. Public Laboratory of Marine Biotechnology, Huaihai Institute of Technology, Lianyungang 222005, Jiangsu, China |
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Abstract After the observation on the development of Enteromorpha prolifera(Müller) J.Ag.by microscope and the paraffin-section method,the microscopic characteristics of the develop process from spores to mature thalli have been expatiated.Spores of Enteromorpha prolifera(Müller) J.Ag.were developed from mature thallus cells,every mature thallus cell could release 10～30 spores.Every spore divided into 2-cell structure after the first division,and this structure had obvious polarity.The base-cell developed into rhizoid,and the top-cell formed protonema by horizontal-division continually.Pipelike thallus was formed by vertical-division of the middle protonema cells,and top-cell kept horizontal-division.Vertical-division included tangential-division and radial-division,tangential-division made the pipelike thallus more thick,and radial-division made the branch formed.The internal cavum of pipelike thallus contained villiform protuberances and meshwork structures which were composed of glycoprotein.When the number of cells in cross section of pipelike thallus reached 30～50,the villiform protuberances disappeared and the meshwork structures became tight,then the mural cells of pipelike thallus adhered and the foliolose thallus formed.The total developmental process of Enteromorpha prolifera(Müller) J.Ag.kept polarity.
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Received: 25 October 2006
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| [1] 徐大伦,黄晓春,杨文鸽,等.2003.浒苔营养成分分析[J].浙江海洋学院学报(自然科学版),22(4):318-320.
[2] 周慧萍,蒋巡天,王淑如,等.1995.浒苔多糖的降血脂及其对SOD活力和LPO含量的影响[J].生物化学杂志,11(2):161-164.
[3] 贾玉海.1996.中国海洋湖沼药物学[M].北京:学苑出版社.318.
[4] Noda H,Amano H,Arashima K,et al..1990.Antitumor activity of marine algae[J].Hydrobiologia,204/205:577-584.
[5] Hiqashi-Okaj K,Otani S,Okai Y.1999.Potent suppressive effect of a Japanese edible seaweed,Enteromorpha prolifera (Sujiao-nori) on initiation and promotion phases of chemically induced mouse skin tumorigenesis[J].Cancer Lett,140:21-25.
[6] 郑国锠.1978.生物显微技术[M].北京:人民教育出版社.228.
[7] Christie A O,Evans L V.1962.Periodicity in the liberation of gametes and zoospores of Enteromorpha intestinalis Link[J].Nature,193:193-194.
[8] Dan A,Hiraoka M,Ohno M,Critchley A.2002.Observations on the effect of salinity and photon fluence rate on the induction of sporulation and rhizoid formation in the green alga Enteromorpha prolifera (Müller) J.Agardh (Chlorophyta,Ulvales)[J].Fish.Sci.,68(6):1182.
[9] Pringle J D.1986.Swarmer release and distribution of life-cycle phases of Enteromorpha intestinalis (L.)(Chlorophyta) in relation to environmental factors[J].Exp.Mar.Biol.Ecol,100:97-111.
[10] Eaton J W,Brown J G,Round F E.1966.Some observations on polarity and regeneration in Enteromorpha[J].Br.Phycol.Bull,3:53-62.
[11] Lersten N R,Voth P D.1960.Experimental control of zooid discharge and rhizoid formation in the green alga Enteromorpha[J].Bot.Gaz,122:33-45.
[12] Moss B,Marsland A.1976.Regeneration of Enteromorpha[J].Br.J.Phycol.,11:309-313.
[13] Lee T F,Wichroski M.1996.Polar regeneration in Enteromorpha prolifera[J].Phycol,32:2.
[14] Burrows E M.1959.Growth,form and environment in Entermomorpha[J].Linn.Soc.Bot.,56:204-206. |
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