RHODENIGMA CONTORTUM, AN OBSCURE NEW GENUS AND SPECIES OF RHODOGORGONALES (RHODOPHYTA) FROM WESTERN AUSTRALIA

被引：7

作者：

West, John A. ^{[1
]}

Zuccarello, Giuseppe C. ^{[2
]}

de Goer, Susan Loiseaux ^{[3
]}

Stavrias, Lambros A. ^{[1
]}

Verbruggen, Heroen ^{[1
]}

机构：

[1] Univ Melbourne, Sch Biosci 2, Parkville, Vic 3010, Australia

[2] Victoria Univ Wellington, Sch Biol Sci, Wellington 6140, New Zealand

[3] 11 Rue Moguerou, F-29680 Roscoff, France

来源：

JOURNAL OF PHYCOLOGY | 2016年 / 52卷 / 03期

基金：

澳大利亚研究理事会;

关键词：

18S; 28S; Australia; Coral Bay; cox1; molecular phylogeny; psbA; rbcL; Rhodenigma contortum; Rhodogorgonales; Rhodophyta; MARINE RED ALGAE; LIFE-HISTORY; NOV; CORALLINOPHYCIDAE; PHYLOGENY; ADDITIONS; NUCLEAR; MODELS; FLORA; COAST;

D O I：

10.1111/jpy.12402

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

An unknown microscopic, branched filamentous red alga was isolated into culture from coral fragments collected in Coral Bay, Western Australia. It grew well unattached or attached to glass with no reproduction other than fragmentation of filaments. Cells of some branch tips became slightly contorted and digitated, possibly as a substrate-contact-response seen at filament tips of various algae. Attached multicellular compact disks on glass had a very different cellular configuration and size than the free filaments. In culture the filaments did not grow on or in coral fragments. Molecular phylogenies based on four markers (rbcL, cox1, 18S, 28S) clearly showed it belongs to the order Rhodogorgonales, as a sister clade of Renouxia. Based on these results, the alga is described as the new genus and species Rhodenigma contortum in the Rhodogorgonaceae. It had no morphological similarity to either of the other genera in Rhodogorgonaceae and illustrates the unknown diversity in cryptic habitats such as tropical coral rubble.

引用

页码：397 / 403

页数：7

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