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Differences in carbohydrate profiles in batch culture grown planktonic and biofilm cells of Amphora rostrata Wm. Sm

DRS at CSIR-National Institute of Oceanography

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Title Differences in carbohydrate profiles in batch culture grown planktonic and biofilm cells of Amphora rostrata Wm. Sm
 
Creator Khodse, V.B.
Bhosle, N.B.
 
Subject planktonic cells
biofilm cells
Amphora rostrata
glucosamine
 
Description Diatoms are abundant in biofilms developed on surfaces immersed in sunlit waters. In both the planktonic and the biofilm mode of growth, diatoms produce carbohydrate polymers which perform several functions including motility, protection, production of macro-aggregates and detoxification. However, little is known about the differences, if any, in the production and characterization at the molecular level of carbohydrates in planktonic and biofilm cells. In order to identify the differences in these two modes of growth, the concentration of total carbohydrates, carbohydrate fractions, neutral carbohydrates, uronic acids and amino sugars in planktonic and biofilm cells of Amphora rostrata were measured. The results showed that the distribution of carbohydrate fractions, uronic acids and amino sugars was different in biofilm and planktonic cells. Cell normalized concentrations of these components were two to five times greater in planktonic cells compared with biofilm cells. The concentrations of glucose and glucosamine decreased, whereas fucose increased in planktonic cells over the period of cultivation. Conversely, the concentrations of glucose and glucosamine increased while that of fucose decreased in attached cells. The study suggests that marked differences exist between the carbohydrates of the planktonic and the biofilm cells of A. rostrata
 
Date 2010-06-21T11:19:30Z
2010-06-21T11:19:30Z
2010
 
Type Journal Article
 
Identifier Biofouling, vol.26(5); 527-537
no
http://drs.nio.org/drs/handle/2264/3643
 
Language en
 
Relation Biofouling_26_527.jpg
 
Rights The final and definitive form of the preprint has been published in the "Biofouling" ? 2010 Taylor & Francis; "Biofouling" is available online at http://www.informaworld.com/ with open URL of artilce : http://www.informaworld.com/openurl?genre=article&issn=1029-2454&volume=26&spage=527
 
Publisher Taylor & Francis