Some Cyanobacteria Synthesize Semi-amylopectin Type α-Polyglucans Instead of Glycogen
| Autor: | Norihide Kurano, Yasunori Nakamura, Satoko Nihei, Masanobu Kawachi, Eiji Suzuki, Hideaki Miyashita, Takahashi Junichiro, Mikio Tsuzuki, Aya Sakurai, Yumiko Inaba, Shoko Fujiwara, Hiroshi Sekiguchi, Hisato Ikemoto |
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| Rok vydání: | 2005 |
| Předmět: |
Cyanobacteria
Physiology Starch Amylopectin Plant Science Evolution Molecular chemistry.chemical_compound Phylogenetics Botany Glucans Phylogeny Molecular Structure biology Phylogenetic tree Glycogen food and beverages Oryza Cell Biology General Medicine biology.organism_classification 16S ribosomal RNA Molecular Weight Biochemistry chemistry RNA Ribosomal Amylose Bacteria |
| Zdroj: | Plant and Cell Physiology. 46:539-545 |
| ISSN: | 1471-9053 0032-0781 |
| DOI: | 10.1093/pcp/pci045 |
| Popis: | It is widely accepted that green plants evolved the capacity to synthesize the highly organized branched alpha-polyglucan amylopectin with tandem-cluster structure, whereas animals and bacteria continued to produce random branched glycogen. Although most previous studies documented that cyanobacteria accumulate glycogen, the present study shows explicitly that some cyanobacteria such as Cyanobacterium sp. MBIC10216, Myxosarcina burmensis and Synechococcus sp. BG043511 had distinct alpha-polyglucans, which were designated as semi-amylopectin. The semi-amylopectin was intermediate between rice amylopectin and typical cyanobacterial glycogen in terms of chain length distribution, molecular size and length of the most abundant alpha-1,4-chain. It was also found that Cyanobacterium sp. MBIC10216 had no amylose-type component in its alpha-polyglucans. The evolutionary aspect of the structure of alpha-polyglucan is discussed in relation to the phylogenetic evolutionary tree of 16S rRNA sequences of cyanobacteria. |
| Databáze: | OpenAIRE |
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