Cell Wall Development in Maize Coleoptiles
نویسندگان
چکیده
منابع مشابه
Cell wall development in maize coleoptiles.
The physical bases for enhancement of growth rates induced by auxin involve changes in cell wall structure. Changes in the chemical composition of the primary walls during maize (Zea mays L. cv WF9 x Bear 38) coleoptile development were examined to provide a framework to study the nature of auxin action. This report documents that the primary walls of maize cells vary markedly depending on deve...
متن کاملInhibition of auxin-induced cell elongation of maize coleoptiles by antibodies specific for cell wall glucanases.
Polyclonal antibodies were raised in rabbits in response to the administration of purified exo- and endoglucanases extracted from cell walls of maize (Zea mays L. B37 x Mo17) coleoptiles. Since the antibodies formed specific conjugates when challenged with the glucanase antigens in immunoblot assays they were employed to evaluate the participation of glucanases in tissue growth. Indole-3-acetic...
متن کاملChanges in Esterification of the Uronic Acid Groups of Cell Wall Polysaccharides during Elongation of Maize Coleoptiles.
Cell walls of grasses have two major polysaccharides that contain uronic acids, the hemicellulosic glucuronoarabinoxylans and the galactosyluronic acid-rich pectins. A technique whereby esterified uronic acid carboxyl groups are reduced selectively to yield their respective 6,6-dideuterio neutral sugars was used to determine the extent of esterification and changes in esterification of these tw...
متن کاملRestoration of phototropic responsiveness in decapitated maize coleoptiles.
The literature indicates that the tip of maize (Zea mays L.) coleoptiles has the localized functions of producing auxin for growth and perceiving unilateral light stimuli and translocating auxin laterally for phototropism. There is evidence that the auxinproducing function of the tip is restored in decapitated coleoptiles. We examined whether the functions for phototropism are also restored by ...
متن کاملCessation of cell elongation in rye coleoptiles is accompanied by a loss of cell-wall plasticity
The mechanism by which endogenous cessation of coleoptile elongation after emergence of the primary leaf is brought about was investigated in rye seedlings {Secale cereale L.) that were either grown in darkness or irradiated with continuous white light. In 3-d-old etiolated (growing) coleoptiles a turgor pressure of 0.59 MPa was measured. In 6-d-old coleoptiles, which had ceased to elongate, ce...
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ژورنال
عنوان ژورنال: Plant Physiology
سال: 1984
ISSN: 0032-0889,1532-2548
DOI: 10.1104/pp.76.1.205