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Showing 1 to 16 of 16 for “"2,4-dichlorophenoxyacetic acid (2,4-D)"”.
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The growth promoting effect of 2,4-Dichlorophenoxyacetic acid (2,4-D) and 2,4,5-Trichlorophenoxyacetic acid (2,4,5-T) on Microcystis aeruginosa
… have shown that 2,4-0ichlorophenoxyacetic acid (2,4-0) and 2,4,5-Trichlorophenoxyacetic acid (2,4,S-T) mimic the metabolic activities of the plant hormone indoleacetic Acid (IAA). IAA has been shown to stimulate the growth of some green and blue-green algae. Recent evidence suggests that …
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Environmental organic geochemistry of sediments from Wadi Gaza and investigation of bioremediation of petroleum derivatives and herbicides by cyanobacterial mats under different experimental conditions
… oil was also degraded. More than 80% of 2,4-dichlorophenoxyacetic acid (2,4-D) and 60% of terbutryn were removed within 30 and 80 days, respectively. We conclude that the Wadi Gaza cyanobacterial mats have grown in a heavily polluted environment, and by that their capacity for bioremediation …
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Development, selection and characterization of summer patch (Magnaporthe poae Landschoot and Jackson) resistant somaclones of Kentucky bluegrass (Poa pratensis L.) genotypes
… medium containing various concentrations of 2,4-dichlorophenoxyacetic acid (2,4-D) and 6-benzylaminopurine (BAP). Callus induction and shoot regeneration varied significantly by genotype and type of explant. In all genotypes leaf and endosperm tissues were recalcitrant. Embryo axes and crown …
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Paveldimas miežio viengubų ir dvigubų homeozinių mutantų fenotipo nestabilumas ir galimos jo priežastys /
… the effects of ethylene, synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) and auxin inhibitors HFCA and PCIB on the flower/inflorescence development of barley double mutants Hv-tweaky spike 2; Hooded/Kap1 (Hv-tw2;Hd) that are characterized by inherited phenotypic instability and by …
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Inherited phenotypic instability of barley homeotic single and double mutants and its possible causes /
… the effects of ethylene, synthetic auxin 2,4-dichlorophenoxyacetic acid (2,4-D) and auxin inhibitors HFCA and PCIB on the flower/inflorescence development of barley double mutants Hv-tweaky spike 2; Hooded/Kap1 (Hv-tw2;Hd) that are characterized by inherited phenotypic instability and by …
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Characterization of lignin deposition in <i>Pinus taeda</i> L. cell suspension cultures
… taeda</i> suspension cultures grown with 2,4-dichlorophenoxyacetic acid (2,4-D) as the growth regulator did not provide conclusive evidence for lignin deposition. On the other hand, cultures in which 2,4-D was substituted with α-naphthaleneacetic acid (NAA) were shown to lignify. During this …
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Escherichia coli and Rhizobium leguminosarum response mechanisms to sub-lethal 2,4-dichlorophenoxyacetic acid
The chlorophenoxy herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) is used extensively worldwide despite its known toxicity and our limited understanding of how it affects non-target organisms. To determine the global effects of 2,4-D at sub-lethal levels on Rhizobium leguminosarum bv. viciae 3841 …
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Bioaugmentation with metal-resistance microorganisms in the remediation of metal and organic contaminated soils
… laboratory soil microcosms with cadmium and 2,4-dichlorophenoxyacetic acid (2,4-D) as model contaminants, four cadmium-detoxifying isolates supported the degradation of 2,4-D by the cadmium-sensitive 2,4-D degrader Alcaligenes eutrophus JMP134 in the presence of toxic levels of cadmium. Ina pilot …
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The Role of lAA in the Regulation of Plant Cell Growth
… OS strain cultures synthesise indol-3yl-acetic acid (lAA). Despite the presence of high levels of extracellular 2,4 dichlorophenoxyacetic acid (2,4-D), which the cultures require for normal growth, it is suggested that endogenous lAA is a major regulatory factor. The level of endogenous lAA …
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The sublethal effects of 2,4-D dimethylamine on wood frog tadpoles in Saskatchewan
… test the sublethal effects of the herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) on tadpoles of the wood frog (Rana sylvatica). Wood frog tadpoles in the first experiment were exposed to 2,4-D amine at 0.1, 1.0 and 100 ug/L in outdoor microcosms. Morphometric measures (total length, snout-vent …
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Plant Growth Regulator Sprays and Girdling: Potential Horticultural Techniques to Increase Fruit Retention and Yield of Longan (Dimocarpus longan Lour.) Trees in California
… of two synthetic auxins, 1-naphthaleneacetic acid (NAA) at 20, 60, or 100 ppm or 2,4-dichlorophenoxyacetic acid (2,4-D) at 5, 25, or 45 ppm, each applied during early or late fruit set. Girdling was also conducted at early or late fruit set, for a total of 15 treatments, including an untreated …
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Biomass yield dependence on inhibitory substrate concentration : a thesis presented as a requirement for the degree of Master of Technology in Biotechnology at Massey University
… was studied. Substrates used for growth were 2,4-dichlorophenoxyacetic acid (2,4-D) and para-chloro-ortho-cresol (PCOC). The synthetic medium used was designed so that substrate was the limiting-nutrient. The microbial culture was obtained from an activated sludge system treating effluent …
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Induksi kalus pegagan (Centella asiatica) pada media MS dengan penambahan zat pengatur tubuh 2.4-D yang dikombinasi dengan air kelapa
… konsentrasi kombinasi Zat Pengatur Tumbuh 2,4-Dichlorophenoxyacetic Acid (2,4-D) dengan air kelapa pada media MS yang paling efektif untuk menginduksi kalus dari eksplan daun pegagan (C. asiatica). Penelitian ini menggunakan RAL dengan dua faktor. Pertama adalah konsentrasi 2,4-D (0,1, 2 dan 3 …
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Integrated control of Carduus thistles and ecological studies on Rhinocyllus conicus Froelich and Ceuthorhynchidius horridus (Panzer)
… horridus (Panzer) and the herbicide 2,4-Dichlorophenoxyacetic acid (2,4-D). Field studies on the development of Ceuthorhynchidius horridus (Panzer) on Carduus thistles in Virginia between 1975-1978 showed that the weevil has one generation annually. Oviposition occurred from mid-December …
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Uptake, translocation, and metabolism 2,4-D in enlist crops and control of drought-stressed waterhemp (Amaranthus tuberculatus) with 2,4-D and glyphosate
The synthetic auxin herbicide, 2,4-dichlorophenoxyacetic acid (2,4-D), is one of the oldest and most widely-used herbicides in the world and is a systemic, postemergence (POST) herbicide that is selective in monocots such as corn, wheat, sorghum, and turf, but dicots are sensitive to 2,4-D. Auxin …
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Respon pertumbuhan kalus stevia (Stevia rebaudiana B.) pada media MS dengan penambahan zat pengatur tumbuh 2,4-D yang dikombinasikan dengan air kelapa
… konsentrasi kombinasi Zat Pengatur Tumbuh 2,4-Dichlorophenoxyacetic Acid (2,4-D) dengan air kelapa pada media MS yang paling efektif sebagai respon eksplan yang berasal dari daun Stevia untuk menumbuhkan kalus Stevia. Penelitian ini menggunakan RAL dengan dua faktor. Faktor pertama adalah …