Arid
DOI10.1007/s11104-021-05117-2
Physiological response of moss/cyanobacteria crusts along a precipitation gradient from semi-arid to arid desert in China
Hui, Rong; Li, Xinrong; Zhao, Ruiming; Tan, Huijuan; Jia, Rongliang
Corresponding AuthorHui, R (corresponding author), Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China.
JournalPLANT AND SOIL
ISSN0032-079X
EISSN1573-5036
Year Published2021
Abstract in EnglishAims Desert regions are regarded as highly sensitive to climatic changes. In arid and semi-arid desert, photosynthetic organisms from biological soil crusts are poikilohydric and sensitive to fluctuations in precipitation. How do physiological properties such as concentration of biochemical constituents and enzymes respond to a precipitation gradient from semi-arid to arid desert regions? Methods We sampled cyanobacteria and moss crusts from four desert regions with distinctly different amounts of annual rainfall. Subsequently, the contents of photosynthetic pigments, malondialdehyde (MDA), osmotic adjustment substances, and antioxidative enzyme activities were correlated with the means of annual precipitation, evaporation, and temperature at the various sites. Results Crust type, precipitation level, and their interaction had significant influences on many physiological properties (photosynthetic pigments, proline, soluble sugar, and superoxide dismutase). The contents of soluble protein, proline, and soluble sugar of cyanobacteria/moss crusts decreased with increasing precipitation level. Superoxide dismutase and catalase activities of cyanobacteria crusts decreased significantly with increasing annual precipitation. No significant variations in MDA were observed between different precipitation regions in the two crusts. Conclusions Among the environmental variables tested, the annual amount of precipitation had the strongest effect on the physiological properties of moss/cyanobacteria crusts in different regions. Crust type combined with particular precipitation level influenced the physiological properties of crusts. Moreover, both moss and cyanobacteria crusts exhibited strong physiological adaptability to changes in precipitation. This result needs to be incorporated into future ecological models, which will help in understanding the function and vulnerability of biocrusts in the face of climate change.
Keyword in EnglishCyanobacteria crust Moss crust Osmotic adjustment substances Photosynthetic pigment Precipitation gradient Water availability
SubtypeArticle ; Early Access
Language英语
Indexed BySCI-E
WOS IDWOS:000687897400003
WOS KeywordBIOLOGICAL SOIL CRUSTS ; TENGGER DESERT ; GURBANTUNGGUT DESERT ; ANTIOXIDANT ENZYMES ; DESICCATION-TOLERANCE ; DISTRIBUTION PATTERNS ; SPATIAL-DISTRIBUTION ; SUCCESSIONAL STAGES ; MICROBIOTIC CRUSTS ; OXIDATIVE DAMAGE
WOS SubjectAgronomy ; Plant Sciences ; Soil Science
WOS Research AreaAgriculture ; Plant Sciences
Document Type期刊论文
Identifierhttp://119.78.100.177/qdio/handle/2XILL650/364330
Affiliation[Hui, Rong; Li, Xinrong; Tan, Huijuan; Jia, Rongliang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Shapotou Desert Res & Expt Stn, Donggang West Rd 320, Lanzhou 730000, Gansu, Peoples R China; [Zhao, Ruiming] Gansu Agr Univ, Coll Agron, Lanzhou 730070, Gansu, Peoples R China
Recommended Citation
GB/T 7714
Hui, Rong,Li, Xinrong,Zhao, Ruiming,et al. Physiological response of moss/cyanobacteria crusts along a precipitation gradient from semi-arid to arid desert in China[J],2021.
APA Hui, Rong,Li, Xinrong,Zhao, Ruiming,Tan, Huijuan,&Jia, Rongliang.(2021).Physiological response of moss/cyanobacteria crusts along a precipitation gradient from semi-arid to arid desert in China.PLANT AND SOIL.
MLA Hui, Rong,et al."Physiological response of moss/cyanobacteria crusts along a precipitation gradient from semi-arid to arid desert in China".PLANT AND SOIL (2021).
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