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Massive Trentepohlia-Bloom in a Glacier Valley of Mt. Gongga, China, and a New Variety of Trentepohlia (Chlorophyta)
Liu, Guoxiang1; Zhang, Qi1,2; Zhu, Huan1,2; Hu, Zhengyu1; Liu, GX (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Hubei, Peoples R China.
2012-07-16
Source PublicationPLOS ONE
ISSN1932-6203
Volume7Issue:7Pages:e37725
AbstractTrentepohlia is a genus of subaerial green algae which is widespread in tropical, subtropical, and also temperate regions with humid climates. For many years, small-scale Trentepohlia coverage had been found on the rocks of some glacier valleys on the northern slopes of Mt. Gongga, China. However, since 2005, in the Yajiageng river valley, most of the rocks are covered with deep red coloured algal carpets, which now form a spectacular sight and a tourist attraction known as 'Red-Stone-Valley'. Based on morphology and molecular data, we have named this alga as a new variety: Trentepohlia jolithus var. yajiagengensis var. nov., it differs from the type variety in that its end cells of the main filament are often rhizoid, unilateral branches. This new variety only grows on the native rock, both global warming and human activity have provided massive areas of suitable substrata: the rocks surfaces of the Yajiageng river valley floodplain were re-exposed because of heavy debris flows in the summer of 2005; plus human activities such as tourism and road-building have also created a lot of exposed rock! In summer, the glaciers of the northern slopes of Mt. Gongga have brought to the valleys wet and foggy air, ideal for Trentepohlia growth. The cells of the new variety are rich in secondary carotenoids (astaxanthin?), which helps the algal cells resistance to strong ultraviolet radiation at high altitudes (they are only found on rock surfaces at alt. 1900-3900 m); the cells are also rich in oils, which gives them high resistance to cold dry winters.; Trentepohlia is a genus of subaerial green algae which is widespread in tropical, subtropical, and also temperate regions with humid climates. For many years, small-scale Trentepohlia coverage had been found on the rocks of some glacier valleys on the northern slopes of Mt. Gongga, China. However, since 2005, in the Yajiageng river valley, most of the rocks are covered with deep red coloured algal carpets, which now form a spectacular sight and a tourist attraction known as 'Red-Stone-Valley'. Based on morphology and molecular data, we have named this alga as a new variety: Trentepohlia jolithus var. yajiagengensis var. nov., it differs from the type variety in that its end cells of the main filament are often rhizoid, unilateral branches. This new variety only grows on the native rock, both global warming and human activity have provided massive areas of suitable substrata: the rocks surfaces of the Yajiageng river valley floodplain were re-exposed because of heavy debris flows in the summer of 2005; plus human activities such as tourism and road-building have also created a lot of exposed rock! In summer, the glaciers of the northern slopes of Mt. Gongga have brought to the valleys wet and foggy air, ideal for Trentepohlia growth. The cells of the new variety are rich in secondary carotenoids (astaxanthin?), which helps the algal cells resistance to strong ultraviolet radiation at high altitudes (they are only found on rock surfaces at alt. 1900-3900 m); the cells are also rich in oils, which gives them high resistance to cold dry winters.
SubtypeArticle
KeywordPrintzina Trentepohliales Phylogeny Growth
Department[Liu, Guoxiang; Zhang, Qi; Zhu, Huan; Hu, Zhengyu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Hubei, Peoples R China; [Zhang, Qi; Zhu, Huan] Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
DOI10.1371/journal.pone.0037725
WOS HeadingsScience & Technology
Funding OrganizationNational Natural Science Foundation of China[30870163, 30970501] ; National Natural Science Foundation of China[30870163, 30970501] ; National Natural Science Foundation of China[30870163, 30970501] ; National Natural Science Foundation of China[30870163, 30970501]
Indexed BySCI
Language英语
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000306466100007
WOS KeywordPRINTZINA TRENTEPOHLIALES ; PHYLOGENY ; GROWTH
Funding OrganizationNational Natural Science Foundation of China[30870163, 30970501] ; National Natural Science Foundation of China[30870163, 30970501] ; National Natural Science Foundation of China[30870163, 30970501] ; National Natural Science Foundation of China[30870163, 30970501]
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/17037
Collection藻类生物学及应用研究中心_期刊论文
Corresponding AuthorLiu, GX (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Hubei, Peoples R China.
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, Guoxiang,Zhang, Qi,Zhu, Huan,et al. Massive Trentepohlia-Bloom in a Glacier Valley of Mt. Gongga, China, and a New Variety of Trentepohlia (Chlorophyta)[J]. PLOS ONE,2012,7(7):e37725.
APA Liu, Guoxiang,Zhang, Qi,Zhu, Huan,Hu, Zhengyu,&Liu, GX .(2012).Massive Trentepohlia-Bloom in a Glacier Valley of Mt. Gongga, China, and a New Variety of Trentepohlia (Chlorophyta).PLOS ONE,7(7),e37725.
MLA Liu, Guoxiang,et al."Massive Trentepohlia-Bloom in a Glacier Valley of Mt. Gongga, China, and a New Variety of Trentepohlia (Chlorophyta)".PLOS ONE 7.7(2012):e37725.
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