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DE-627 |
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20231223065015.0 |
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231223s2005 xx ||||| 00| ||eng c |
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|a pubmed24n0513.xml
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|a (DE-627)NLM153933488
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|a (NLM)15737983
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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 Doncheva, Snezhanka
|e verfasserin
|4 aut
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| 245 |
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|a Root cell patterning
|b a primary target for aluminium toxicity in maize
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|c 2005
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|a Text
|b txt
|2 rdacontent
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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|a Band
|b nc
|2 rdacarrier
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|a Date Completed 05.07.2005
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|a Date Revised 18.03.2022
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The short-term influence (5-180 min) of 50 microM Al on cell division was investigated in root tips of two Zea mays L. varieties differing in Al-resistance. The incorporation of bromodeoxyuridine into S-phase nuclei was visualized by immunofluorescence staining using confocal laser fluorescence microscopy. In Al-sensitive plants 5 min Al exposure was enough to inhibit cell division in the proximal meristem (250-800 microm from the tip). After 10 or 30 min with Al only, a few S-phase nuclei were found in the cortical initials. By contrast, cell division was stimulated in the distal elongation zone (2.5-3.1 mm). After 180 min the protrusion of an incipient lateral root was observed in this zone. These observations suggest a fast change in cell patterning rather than a general cariotoxic effect after exposure to Al for a short time. No such changes were found in Al-resistant maize. This is the first report showing such fast Al-induced alterations in the number and the position of dividing cells in root tips. The observation that similar changes were induced by a local supply of naphthylphthalamic acid to the distal transition zone suggests that inhibition of auxin transport plays a role in the Al-induced alteration of root cell patterning
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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 Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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|a Aluminum
|2 NLM
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| 650 |
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|a CPD4NFA903
|2 NLM
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| 700 |
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|a Amenós, Montserrat
|e verfasserin
|4 aut
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| 700 |
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|a Poschenrieder, Charlotte
|e verfasserin
|4 aut
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| 700 |
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|a Barceló, Juan
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 56(2005), 414 vom: 06. Apr., Seite 1213-20
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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| 773 |
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|g volume:56
|g year:2005
|g number:414
|g day:06
|g month:04
|g pages:1213-20
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|a GBV_USEFLAG_A
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|a SYSFLAG_A
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|a GBV_NLM
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|a GBV_ILN_350
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|a AR
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|d 56
|j 2005
|e 414
|b 06
|c 04
|h 1213-20
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