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Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions
Wang WeiBo; Yang CuiYun; Tang DongShan; Li DunHai; Liu YongDing; Hu ChunXiang; Liu, YD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2007-08-01
Source PublicationSCIENCE IN CHINA SERIES C-LIFE SCIENCES
ISSN1006-9305
Volume50Issue:4Pages:530-534
AbstractSoil cyanobacterial crusts occur throughout the world, especially in the semiarid and arid regions. It always encounters sand burial, which is an important feature of mobile sand dunes. A greenhouse 41 study was conducted to determine the effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts in six periods of time (0, 5, 10, 15, 20 and 30 d after burying) and at five depths (0, 0.2, 0.5, 1 and 2cm). The results indicated that with the increase of the burial time and burial depth extracellular polysaccharides content and Fv/Fm decreased correspondingly and there were no significant differences between 20 and 30 burial days under different burial depths. The degradation of chlorophyll a content appeared only at 20 and 30 burial days and there was also no significant difference between them under different burial depths. It was also observed a simultaneous decrease of the values of the Fv/Fm and the content of extracellular polysaccharides happened in the crusted cyanobacterium Microcoleus vaginatus Gom. It may suggest that there exists a relationship between extracellular polysaccharides and recovery of the activity of photosystem II (PS II) after rehydration.; Soil cyanobacterial crusts occur throughout the world, especially in the semiarid and arid regions. It always encounters sand burial, which is an important feature of mobile sand dunes. A greenhouse 41 study was conducted to determine the effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts in six periods of time (0, 5, 10, 15, 20 and 30 d after burying) and at five depths (0, 0.2, 0.5, 1 and 2cm). The results indicated that with the increase of the burial time and burial depth extracellular polysaccharides content and Fv/Fm decreased correspondingly and there were no significant differences between 20 and 30 burial days under different burial depths. The degradation of chlorophyll a content appeared only at 20 and 30 burial days and there was also no significant difference between them under different burial depths. It was also observed a simultaneous decrease of the values of the Fv/Fm and the content of extracellular polysaccharides happened in the crusted cyanobacterium Microcoleus vaginatus Gom. It may suggest that there exists a relationship between extracellular polysaccharides and recovery of the activity of photosystem II (PS II) after rehydration.
SubtypeArticle
KeywordMicrocoleus Vaginatus Gom. Man-made Cyanobacterial Crusts Sand Burial Biomass Photosynthetic Activity Extracellular Polysaccharides
DepartmentChinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China
Subject AreaBiology
DOI10.1007/s11427-007-0051-z
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaLife Sciences & Biomedicine - Other Topics
WOS SubjectBiology
WOS IDWOS:000249267000015
WOS KeywordCRYPTOBIOTIC CRUSTS ; DESERT ; GERMINATION ; SEEDS ; EMERGENCE ; SEEDLINGS ; DORMANCY
Citation statistics
Cited Times:27[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8466
Collection期刊论文
Corresponding AuthorLiu, YD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Grad Univ, Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Wang WeiBo,Yang CuiYun,Tang DongShan,et al. Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions[J]. SCIENCE IN CHINA SERIES C-LIFE SCIENCES,2007,50(4):530-534.
APA Wang WeiBo.,Yang CuiYun.,Tang DongShan.,Li DunHai.,Liu YongDing.,...&Liu, YD, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2007).Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions.SCIENCE IN CHINA SERIES C-LIFE SCIENCES,50(4),530-534.
MLA Wang WeiBo,et al."Effects of sand burial on biomass, chlorophyll fluorescence and extracellular polysaccharides of man-made cyanobacterial crusts under experimental conditions".SCIENCE IN CHINA SERIES C-LIFE SCIENCES 50.4(2007):530-534.
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