New life cycles of Porphyra katadae var. hemiphylla in culture

doi:10.1007/s10811-005-5517-4

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	New life cycles of Porphyra katadae var. hemiphylla in culture
	Tang, XR ; Jiang, HX ; Fei, XG ; Yarish, C
	2004-12-01
发表期刊	JOURNAL OF APPLIED PHYCOLOGY
ISSN	0921-8971
卷号	16 期号:6 页码:505-511
文章类型	Article
摘要	Porphyra katadae Miura var. hemiphylla Tseng et T. J. Chang, a species distributed around the Liaodong and Shandong Peninsulas of China, produces gametophytes from late winter to early spring. These are monoecious with male and female reproductive tissues in distinct halves or sectors. Vegetative tissues from sectors expected to differentiate into sexual tissue were cultured in the laboratory. Male and female reproductive organs, as well as conchocelis and blades, were differentiated from these tissues. The male and female reproductive tissues were in patches and mixed on the cultured tissue pieces. This was quite different from the wild-type sectored individuals. The F-1 conchospore germlings also produced monospores, carposporangia, spermatangia and conchocelis. These carposporangia and spermatangia were in patches and were mixed on the F-1 fronds. The results imply that P. katadae var. hemiphylla is possibly sex-differentiated rather than sex-determined. This is the first report of such a dimorphic life history in the genus Porphyra.; Porphyra katadae Miura var. hemiphylla Tseng et T. J. Chang, a species distributed around the Liaodong and Shandong Peninsulas of China, produces gametophytes from late winter to early spring. These are monoecious with male and female reproductive tissues in distinct halves or sectors. Vegetative tissues from sectors expected to differentiate into sexual tissue were cultured in the laboratory. Male and female reproductive organs, as well as conchocelis and blades, were differentiated from these tissues. The male and female reproductive tissues were in patches and mixed on the cultured tissue pieces. This was quite different from the wild-type sectored individuals. The F-1 conchospore germlings also produced monospores, carposporangia, spermatangia and conchocelis. These carposporangia and spermatangia were in patches and were mixed on the F-1 fronds. The results imply that P. katadae var. hemiphylla is possibly sex-differentiated rather than sex-determined. This is the first report of such a dimorphic life history in the genus Porphyra.
关键词	Life History Porphyra Katadae Var. Hemiphylla Tissue Differentiation
学科领域	Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
DOI	10.1007/s10811-005-5517-4
URL	查看原文
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000230724000013
引用统计	被引频次：7[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/3222
专题	实验海洋生物学重点实验室
作者单位	1.Ocean Univ China, Lab Marine Genet & Breeding, Qingdao, Peoples R China 2.Chinese Acad Sci, Key Lab Marine Biol, Inst Oceanol, Qingdao, Peoples R China 3.Univ Connecticut, Dept Ecol & Evolut Biol, Stamford, CT 06901 USA
推荐引用方式 GB/T 7714	Tang, XR,Jiang, HX,Fei, XG,et al. New life cycles of Porphyra katadae var. hemiphylla in culture[J]. JOURNAL OF APPLIED PHYCOLOGY,2004,16(6):505-511.
APA	Tang, XR,Jiang, HX,Fei, XG,&Yarish, C.(2004).New life cycles of Porphyra katadae var. hemiphylla in culture.JOURNAL OF APPLIED PHYCOLOGY,16(6),505-511.
MLA	Tang, XR,et al."New life cycles of Porphyra katadae var. hemiphylla in culture".JOURNAL OF APPLIED PHYCOLOGY 16.6(2004):505-511.

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