Plant Growth Regulation
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Physiological and biochemical responses induced by lead stress in Spirodela polyrhiza
Plant Growth Regulation - Tập 67 - Trang 217-225 - 2012
The effects of increasing lead concentration on the activities of superoxide dismutase (SOD), peroxides (POD) and catalase (CAT), levels of ascorbate (AsA), reduced glutathione (GSH), Pb accumulation and its influence on nutrient elements, polyamines (PAs) content, as well as activities of polyamine oxidase (PAO) and ornithine decarboxylase (ODC), were investigated in Spirodela polyrhiza. POD and ......
Transport of [3H]IAA label in gravistimulated primary roots of maize
Plant Growth Regulation - Tập 16 - Trang 83-92 - 1995
The curvature of roots in response to gravity is attributed to the development of a differential concentration gradient of IAA in the top and bottom of the elongation region of roots. The development of the IAA gradient has been attributed to the redistribution of IAA from the stele to cortical tissues in the elongation region. The gravistimulated redistribution of IAA was investigated by applying......
Higher levels of cell proliferation rate and cyclin CycD3 expression in the Arabidopsis amp1 mutant.
Plant Growth Regulation - Tập 32 - Trang 275-283 - 2000
Cytokinins are involved in plant cell proliferation leading to plant growth and morphogenesis. The amp1 mutant of Arabidopsis has a five-fold higher level of cytokinin than the wild type plant. The mutant has a number of phenotypes with apparently increased cell proliferation rate similar to those seen in plants transformed with an ipt gene and having higher cytokinin levels. In order to identify ......
Ethylene inhibitors enhance in vitro root formation on faba bean shoots regenerated on medium containing thidiazuron
Plant Growth Regulation - Tập 32 - Trang 59-63 - 2000
The possible involvement of ethylene in in vitrorooting of faba bean (Vicia faba L.) shootsregenerated on medium containing thidiazuron wasinvestigated. The effects of the ethylene precursor1-aminocyclopropane-1-carboxylic acid (ACC) and threeethylene inhibitors, silver nitrate (AgNO3),acetyl salicylic acid (ASA) and cobalt chloride(CoCl2) on root formation were tested in vitrousing TDZ-induced sh......
Indole-3-acetic acid biosynthesis in isolated axes from germinating bean seeds: The effect of wounding on the biosynthetic pathway
Plant Growth Regulation - Tập 36 - Trang 201-207 - 2002
A facile radiotracer method for discriminating between the activities oftryptophan-dependent and tryptophan-independent pathways for IAA biosynthesisisdescribed. This method utilized the simultaneous exposure of plants to[14C]anthranilate in the presence or absence of excess unlabeledtryptophan in order to determine if tryptophan feeding can affect the relativeenrichment of the IAA pool. Using thi......
Some reflections on the relationship between endogenous hormones and light-mediated seed dormancy
Plant Growth Regulation - Tập 11 - Trang 239-248 - 1992
The relationships between phytochrome and endogenous hormones in the light-mediated control of seed dormancy are discussed. It is concluded that gibberellins are primarily involved in post-dormancy metabolic processes leading to embryo growth and radicle emergence, such as food reserve mobilisation and endosperm softening. Evidence is considered that germination inhibitors, particularly abscisic a......
Oxford surveys of plant molecular and cell biology
Plant Growth Regulation - Tập 8 - Trang 99-99 - 1989
Cellular responses to naphthoquinones: juglone as a case study
Plant Growth Regulation - Tập 72 - Trang 239-248 - 2013
The effects of juglone (JG) on the endogenous growth, growth in the presence of either indoleacetic acid (IAA) or fusicoccin (FC) and on proton extrusion were studied in maize coleoptile segments. In addition, membrane potential changes were also determined at chosen JG concentrations. It was found that JG, when added to the incubation medium, inhibited endogenous growth as well as growth in the p......
Definitive identification of indole-3-acetic acid and abscisic acid in shoots of Coleus blumei by gas chromatography-mass spectrometry
Plant Growth Regulation - - 1998
Mass spectra provide definitive identification of indole-3-acetic acid and abscisic acid in shoots of Coleus blumei, a species used for studying the hormone control of plant development since the early 1930s.
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