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231223s2008 xx |||||o 00| ||eng c |
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|a pubmed24n0588.xml
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|a (DE-627)NLM17649510X
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|a (NLM)18155804
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Leucci, Maria Rosaria
|e verfasserin
|4 aut
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| 245 |
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|a Water stress and cell wall polysaccharides in the apical root zone of wheat cultivars varying in drought tolerance
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| 264 |
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|c 2008
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 22.04.2009
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| 500 |
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a Glycosyl composition and linkage analysis of cell wall polysaccharides were examined in apical root zones excised from water-stressed and unstressed wheat seedlings (Triticum durum Desf.) cv. Capeiti ("drought-tolerant") and cv. Creso ("drought sensitive"). Wall polysaccharides were sequentially solubilized to obtain three fractions: CDTA+Na(2)CO(3) extract, KOH extract and the insoluble residue (alpha-cellulose). A comparison between the two genotypes showed only small variations in the percentages of matrix polysaccharides (CDTA+Na(2)CO(3) plus KOH extract) and of the insoluble residues (alpha-cellulose) in water-stressed and unstressed conditions. Xylosyl, glucosyl and arabinosyl residues represented more than 90 mol% of the matrix polysaccharides. The linkage analysis of matrix polysaccharides showed high levels of xyloglucans (23-39 mol%), and arabinoxylans (38-48 mol%) and a low amount of pectins and (1-->3), (1-->4)-beta-D-glucans. The high level of xyloglucans was supported by the release of the diagnostic disaccharide isoprimeverose after Driselase digestion of KOH-extracted polysaccharides. In the "drought-tolerant" cv. Capeiti the mol% of side chains of rhamnogalacturonan I and II significantly increased in response to water stress, whereas in cv. Creso, this increase did not occur. The results support a role of the pectic side chains during water stress response in a drought-tolerant wheat cultivar
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| 650 |
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|a Journal Article
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| 650 |
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|a Research Support, Non-U.S. Gov't
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| 650 |
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|a Disaccharides
|2 NLM
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| 650 |
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|a Fungal Proteins
|2 NLM
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| 650 |
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|a Hydroxides
|2 NLM
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| 650 |
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|a Plant Extracts
|2 NLM
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| 650 |
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7 |
|a Polysaccharides
|2 NLM
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| 650 |
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|a Potassium Compounds
|2 NLM
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| 650 |
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|a isoprimeverose
|2 NLM
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| 650 |
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7 |
|a 534-98-5
|2 NLM
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| 650 |
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7 |
|a Glycoside Hydrolases
|2 NLM
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| 650 |
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|a EC 3.2.1.-
|2 NLM
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| 650 |
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|a driselase
|2 NLM
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| 650 |
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|a EC 3.2.1.-
|2 NLM
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| 650 |
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|a potassium hydroxide
|2 NLM
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| 650 |
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|a WZH3C48M4T
|2 NLM
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| 700 |
1 |
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|a Lenucci, Marcello Salvatore
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Piro, Gabriella
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Dalessandro, Giuseppe
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of plant physiology
|d 1979
|g 165(2008), 11 vom: 31. Juli, Seite 1168-80
|w (DE-627)NLM098174622
|x 1618-1328
|7 nnns
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| 773 |
1 |
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|g volume:165
|g year:2008
|g number:11
|g day:31
|g month:07
|g pages:1168-80
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|a GBV_USEFLAG_A
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|a SYSFLAG_A
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|a AR
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| 952 |
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|d 165
|j 2008
|e 11
|b 31
|c 07
|h 1168-80
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