gibberellic acid/mais

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Early responses to gibberellic acid in a dwarf maize mutant (Zea mays L. d 1).

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Early effects of gibberellic acid (GA3) (1-4 h treatment) on the ion ratios in a dwarf maize mutant (Zea mays L. d 1) showing normal growth after hormone treatment, have been investigated by electron microprobe analysis. GA3 exerts a different effect on the ion ratios in plastids, cytoplasm and

Gibberellic acid and dwarfism effects on the growth dynamics of B73 maize (Zea mays L.) leaf blades: a transient increase in apoplastic peroxidase activity precedes cessation of cell elongation.

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The relationship between apoplastic peroxidase (EC 1.11.1.7) activity and cessation of growth in maize (Zea mays L.) leaf blades was investigated by altering elongation zone length. Apoplastic peroxidase activity in the elongation and secondary cell wall deposition zones of elongating leaf blades of

Growth and graviresponsiveness of primary roots of Zea mays seedlings deficient in abscisic acid and gibberellic acid.

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The objective of this research was to determine if gibberellic acid (GA) and/or abscisic acid (ABA) are necessary for graviresponsiveness by primary roots of Zea mays. To accomplish this objective we measured the growth and graviresponsiveness of primary roots of seedlings in which the synthesis of

Lateral movement of radioactivity from [(14)C]gibberellic acid (GA 3) in roots and coleoptiles of Zea mays L. seedlings during geotropic stimulation.

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An upward lateral movement of radioactivity from [(14)C]gibberellic acid (GA3) has been found to occur in geotropically stimulated coleoptiles and primary roots of intact Zea mays (L.) seedlings.

The role of gibberellic acid in the hydrolysis of endosperm reserves in Zea mays.

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Excised maize (Zea mays L.) endosperms incubated in buffer rapidly degrade their starch and protein reserves. These processes are not markedly stimulated by addition of gibberellic acid (GA3). However protease and α-amylase production are strongly inhibited by abscisic acid, and this inhibition can

Effect of gibberellic acid on the ion ratios in a dwarf maize mutant (Zea mays L. d1) : An electron microprobe study.

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The effect of gibberellic acid (GA3) on ion ratios in a dwarf maize mutant (Zea mays L. d1) exhibiting normal growth after hormone treatment has been investigated by electron microprobe analysis. Gibberellic-acid treatment increased the ion content in chloroplasts and vacuoles whereas no change of

Induction of resistance of corn plants to Spodoptera frugiperda (J. E. Smith, 1797) (Lepidoptera: Noctuidae) by application of silicon and gibberellic acid.

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The aim of this study was to evaluate the effects of silicon application and administration of the phytohormone gibberellic acid on resistance of the corn plants to the fall armyworm (FAW), Spodoptera frugiperda, and their vegetative characteristics. We evaluated larval and pupal duration, survival

A possible mechanism of metabolic regulation in Gibberella fujikuroi using a mixed carbon source of glucose and corn oil inferred from analysis of the kinetics data obtained in a stirrer tank bioreactor.

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A nonstructured model was used to study the dynamics of gibberellic acid production in a stirred tank bioreactor. Experimental data were obtained from submerged batch cultures of Gibberella fujikuroi (CDBB H-984) grown in varying ratios of glucose-corn oil as the carbon source. The nitrogen

Effects of root applications of gibberellic acid on photosynthesis and growth in C3 and C 4 plants.

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The effects of root applications of gibberellic acid (GA3) on growth and photosynthesis of 12 species of plants including C3 monocots (Triticum aestivum L., wheat, Hordeum vulgare L., barley and Avena sativa L., oat), C3 dicots (Vigna radiata L., mung bean, Cucurbita moschata L., squash and Capsicum

Sequential expression and differential hormonal regulation of proteolytic activities during germination in Zea mays L.

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We have characterized the proteolytic activities (proteases in cooperation with carboxypeptidases) involved in the different stages of germination of maize (Zea mays L.) grains. A sequential expression of different groups of proteases (aspartic, cysteine, serine and metallo-proteases) with pH optima

Extractive fermentation of gibberellic acid with free and immobilized Gibberella fujikuroi.

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Gibberelic acid fermentation using extractive methods was carried out in the presence of corn oil and Alamine 336. Gibberella fujikuroi fungus (NRRL 2278) was used to produce gibberellic acid. Oleyl alcohol was a diluting agent for Alamine 336. The effects of oleyl alcohol (100%, v/v), corn oil

Validation of Dwarf8 polymorphisms associated with flowering time in elite European inbred lines of maize (Zea mays L.).

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The timing of transition from vegetative growth to flowering is important in nature as well as in agriculture. One of several pathways influencing this transition in plants is the gibberellin (GA) pathway. In maize (Zea mays L.), the Dwarf8 (D8) gene has been identified as an orthologue of the

Phytotoxical effect of Lepidium draba L. extracts on the germination and growth of monocot (Zea mays L.) and dicot (Amaranthus retroflexus L.) seeds.

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Laboratory experiments were performed to determine phytotoxic potentials of white top (Lepidium draba) methanol extracts (root, stem and leaf) on germination and early growth of corn (Zea mays) and redroot pigweed (Amaranthus retroflexus). Furthermore, the effects of different methanol extracts of

Inductive effect produced by a mixture of carbon source in the production of gibberellic acid by Gibberella fujikuroi.

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Gibberellic acid has been known since 1954 but its effect on rice still remains very important in the agricultural world. Gibberellic acid (GA3) is the main secondary metabolite produced by the Gibberella fujikuroi fungus. This hormone is of great importance in agriculture and the brewing industry,

Cloning and expression analysis of some genes involved in the phosphoinositide and phospholipid signaling pathways from maize (Zea mays L.).

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Previous studies have indicated the phosphoinositide and phospholipid signaling pathways play a key role in plant growth, development and responses to environmental stresses. However, little is known about the phosphoinositide and phospholipid signaling pathways in maize (Zea mays L.). To better

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