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231224s2008 xx |||||o 00| ||eng c |
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|a 10.1111/j.1529-8817.2008.00568.x
|2 doi
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|a pubmed24n0863.xml
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| 041 |
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|a eng
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| 100 |
1 |
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|a Estevez, José M
|e verfasserin
|4 aut
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| 245 |
1 |
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|a CELL WALL CARBOHYDRATE EPITOPES IN THE GREEN ALGA OEDOGONIUM BHARUCHAE F. MINOR (OEDOGONIALES, CHLOROPHYTA)(1)
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|c 2008
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 05.04.2016
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|a Date Revised 04.04.2016
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2008 Phycological Society of America.
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|a Cell wall changes in vegetative and suffultory cells (SCs) and in oogonial structures from Oedogonium bharuchae N. D. Kamat f. minor Vélez were characterized using monoclonal antibodies against several carbohydrate epitopes. Vegetative cells and SCs develop only a primary cell wall (PCW), whereas mature oogonial cells secrete a second wall, the oogonium cell wall (OCW). Based on histochemical and immunolabeling results, (1→4)-β-glucans in the form of crystalline cellulose together with a variable degree of Me-esterified homogalacturonans (HGs) and hydroxyproline-rich glycoprotein (HRGP) epitopes were detected in the PCW. The OCW showed arabinosides of the extensin type and low levels of arabinogalactan-protein (AGP) glycans but lacked cellulose, at least in its crystalline form. Surprisingly, strong colabeling in the cytoplasm of mature oogonia cells with three different antibodies (LM-5, LM-6, and CCRC-M2) was found, suggesting the presence of rhamnogalacturonan I (RG-I)-like structures. Our results are discussed relating the possible functions of these cell wall epitopes with polysaccharides and O-glycoproteins during oogonium differentiation. This study represents the first attempt to characterize these two types of cell walls in O. bharuchae, comparing their similarities and differences with those from other green algae and land plants. This work represents a contribution to the understanding of how cell walls have evolved from simple few-celled to complex multicelled organisms
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|a Journal Article
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|a HRGP
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|a Oedogonium bharuchae f. minor
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| 650 |
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|a cell wall
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|a cellulose
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|a green algae
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| 650 |
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|a oogonium development
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| 650 |
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4 |
|a pectins
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| 700 |
1 |
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|a Leonardi, Patricia I
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Alberghina, Josefina S
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of phycology
|d 1966
|g 44(2008), 5 vom: 04. Okt., Seite 1257-68
|w (DE-627)NLM098182994
|x 1529-8817
|7 nnns
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| 773 |
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|g volume:44
|g year:2008
|g number:5
|g day:04
|g month:10
|g pages:1257-68
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|u http://dx.doi.org/10.1111/j.1529-8817.2008.00568.x
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