Document Detail


Phosphorus limitation for the colony formation, growth and photosynthesis of an edible cyanobacterium, Nostoc sphaeroides.
MedLine Citation:
PMID:  21972139     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The percentage of spherical colonies from the trichomes of Nostoc sphaeroides reached 62-73% after 16 days with 50 and 250 μM P, but only10-15% at 0.5 and 5 μM P. During colony formation from microcolonies to macrocolonies, the growth rates were 95, 206 and 244% higher, respectively at 5, 50 and 250 μM P than that at 0.5 μM P. The light-saturated photosynthetic rate, maximum electron transport rate and light-limited photosynthetic efficiency at 0.5 μM P decreased, respectively, by 45, 51 and 32% than those at 250 μM P. These indicated that the colony development, growth and photosynthetic capacities were restricted at low P level, suggesting that P might be an important factor limiting the productivity and distribution of N. sphaeroides in the field.
Authors:
Zhen Chen; Shuo Chen; Gaofei Lu; Xiongwen Chen
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-5
Journal Detail:
Title:  Biotechnology letters     Volume:  -     ISSN:  1573-6776     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-10-5     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8008051     Medline TA:  Biotechnol Lett     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
College of Life Sciences and Hubei Key Laboratory of Pollutant Analysis & Reuse Technology, Hubei Normal University, Huangshi, 435002, Hubei, People's Republic of China.
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