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231222s2000 xx ||||| 00| ||eng c |
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|a pubmed24n1221.xml
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|a (DE-627)NLM110282647
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|a (NLM)11113159
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kieffer, F
|e verfasserin
|4 aut
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| 245 |
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|a The fungal elicitor cryptogein induces cell wall modifications on tobacco cell suspension
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| 264 |
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|c 2000
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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 ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 25.01.2001
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|a Date Revised 13.12.2023
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|a published: Print
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|a Citation Status MEDLINE
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|a Upon addition of the fungal elicitor cryptogein, suspension cells of tobacco (Nicotiana tabacum cv. Xanthi) aggregated in clusters. Cytochemical experiments indicated that elicited cells displayed fibrillar expansions of pectin along the primary cell wall. Immunocytochemical detection of pectin epitopes indicated that the fibrillar material surrounding the treated cells was mostly composed of low methylated galacturonan sequences, but the use of the cationic probe did not reveal the presence of negatively charged carboxyl groups: the presence of important amounts of calcium ions in these pectic fibrillar expansions accounts for these observations. These data indicate that tobacco cells treated with cryptogein show a cell wall altered by the presence of a calcium pectate gel, resulting from the reorganization of pectin in the middle lamellae. These results are consistent with a drastic reduction in wall digestibility, partially reversed by increasing the pectolyase concentration in the hydrolytic solution. Diphenylene iodonium, an inhibitor of the oxidative burst triggered by cryptogein on tobacco cells, partially prevents elicited cell walls from this loss of digestibility, suggesting a possible role of active oxygen species in the cell wall strengthening. This work represents a new element of the signal transduction cascade triggered on tobacco cells by cryptogein
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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 Algal Proteins
|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 cryptogein protein, Phytophthora cryptogea
|2 NLM
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| 650 |
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|a Calcium
|2 NLM
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| 650 |
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|a SY7Q814VUP
|2 NLM
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| 700 |
1 |
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|a Lherminier, J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Simon-Plas, F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Nicole, M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Paynot, M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Elmayan, T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Blein, J P
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 51(2000), 352 vom: 16. Nov., Seite 1799-811
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
1 |
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|g volume:51
|g year:2000
|g number:352
|g day:16
|g month:11
|g pages:1799-811
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