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学科主题: Biotechnology & Applied Microbiology; Marine & Freshwater Biology
题名: Cytochemical changes in the developmental process of Nostoc sphaeroides (cyanobacterium)
作者: Li, Dunhai1; Xing, Wei2; Li, Genbao1; Liu, Yongding1
通讯作者: Liu, YD, Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: Cyanobacterium ; Cytochemical changes ; Development ; Nostoc sphaeroides ; Polysaccharides
刊名: JOURNAL OF APPLIED PHYCOLOGY
发表日期: 2009-02-01
DOI: 10.1007/s10811-008-9340-6
卷: 21, 期:1, 页:119-125
收录类别: SCI
文章类型: Article
部门归属: [Li, Dunhai; Li, Genbao; Liu, Yongding] Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Xing, Wei] Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: CAS [KZCX2-YW-426]; National Basic Research program of China [2002CB412306]
类目[WOS]: Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
研究领域[WOS]: Biotechnology & Applied Microbiology ; Marine & Freshwater Biology
摘要: There are several apparent developmental stages in the life cycle of Nostoc sphaeroides Kutzing, an edible cyanobacterium found mainly in paddy fields in central China. The cytochemical changes in developmental stages such as hormogonia, aseriate stage, filamentous stage and colony in N. sphaeroides were examined using fluorescent staining and colorimetric methods. The staining of acidic and sulfated polysaccharides increased with development when hormogonia were used as the starting point. Acidic polysaccharides (AP) were most abundant at the aseriate stage and then decreased, while the sulfated polysaccharides (SP) were highest at the colony stage. Quantitatively, along the developmental process from hormogonia to colony, total carbohydrates first increased, then became stable, and then reached their highest level at the colony stage, while reducing sugars were highest at the hormogonia stage and then decreased sharply once development began. SP were not detectable in the hot water soluble polysaccharides (HWSP), and hormogonia had the lowest content of AP, while old colonies had the highest. The AP content of the aseriate stage, filamentous stage and young colony stage were very similar. The evolutionary relationships reflected in the developmental stages of N. sphaeroides are discussed.
英文摘要: There are several apparent developmental stages in the life cycle of Nostoc sphaeroides Kutzing, an edible cyanobacterium found mainly in paddy fields in central China. The cytochemical changes in developmental stages such as hormogonia, aseriate stage, filamentous stage and colony in N. sphaeroides were examined using fluorescent staining and colorimetric methods. The staining of acidic and sulfated polysaccharides increased with development when hormogonia were used as the starting point. Acidic polysaccharides (AP) were most abundant at the aseriate stage and then decreased, while the sulfated polysaccharides (SP) were highest at the colony stage. Quantitatively, along the developmental process from hormogonia to colony, total carbohydrates first increased, then became stable, and then reached their highest level at the colony stage, while reducing sugars were highest at the hormogonia stage and then decreased sharply once development began. SP were not detectable in the hot water soluble polysaccharides (HWSP), and hormogonia had the lowest content of AP, while old colonies had the highest. The AP content of the aseriate stage, filamentous stage and young colony stage were very similar. The evolutionary relationships reflected in the developmental stages of N. sphaeroides are discussed.
关键词[WOS]: BLUE-GREEN-ALGAE ; DIFFERENT COLONY MORPHOLOGIES ; STRUCTURAL-CHARACTERIZATION ; NITROGEN-FIXATION ; POLYSACCHARIDES ; COMMUNE ; ULTRAVIOLET ; SCYTONEMIN ; CULTURES ; PIGMENT
语种: 英语
WOS记录号: WOS:000263877000015
ISSN号: 0921-8971
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7846
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, State Key Lab Freshwater Ecol & Biotechnol, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Wuhan Bot Garden, Wuhan 430074, Peoples R China

Recommended Citation:
Li, Dunhai; Xing, Wei; Li, Genbao; Liu, Yongding.Cytochemical changes in the developmental process of Nostoc sphaeroides (cyanobacterium),JOURNAL OF APPLIED PHYCOLOGY,2009,21(1):119-125
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