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Differences in Anatomical Structure and Lignin Content of Roots of pedunculate Oak and Wild Cherry-Tree Plantlets During Acclimation
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SYSNO ASEP 0104356 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title Differences in Anatomical Structure and Lignin Content of Roots of pedunculate Oak and Wild Cherry-Tree Plantlets During Acclimation Title Rozdíly v anatomické struktuře a obsahu ligninu v kořenech dubu letního a třešně ptačí v průběhu aklimatizace Author(s) Soukup, A. (CZ)
Malá, J. (CZ)
Hrubcová, Marie (UEB-Q)
Kálal, J. (CZ)
Votrubová, O. (CZ)
Cvikrová, Milena (UEB-Q) RID, ORCIDSource Title Biologia Plantarum. - : Ústav experimentální botaniky AV ČR, v. v. i. - ISSN 0006-3134
Roč. 48, č. 4 (2004), s. 481-489Number of pages 9 s. Language eng - English Country CZ - Czech Republic Keywords exodermis ; in vitro ; lignin Subject RIV GF - Plant Pathology, Vermin, Weed, Plant Protection R&D Projects GA206/04/0999 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z5038910 - UEB-Q Annotation The lignin contents and anatomical structure of roots of wild cherry (Prunus avium L.) and pedunculate oak (Quercus robur L.) plantlets were compared to explain differences in response during transfer from in vitro to ex vitro conditions. Lignification of cell walls increased significantly in both oak and cherry roots during the period of acclimation and finally lignin content of root tissues of in vitro propagated plantlets reached the levels not significantly different from seedlings grown in soil. Later on when secondary tissues appeared, lignified secondary xylem constituted most of the tissues of both species. The most conspicuous interspecific difference in root structure was the presence of phi-thickenings in cortical layers just outer to endodermis in cherry roots cultivated ex vitro. Formation of phi-thickenings was avoided in vitro and their presence thus seems to be under environmental control. Suberised well established exodermis was present in roots of oak but not detected in those of cherry. Very early development of exodermis in oak roots, preceding suberisation of endodermis, was recorded in vitro but not in well aerated soil. While multilayered and well-developed cork occurred in oak, only thin walled and less suberised secondary dermal tissues were found in cherry. Workplace Institute of Experimental Botany Contact David Klier, knihovna@ueb.cas.cz, Tel.: 220 390 469 Year of Publishing 2005
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