Phosphorus Metabolism of Trifolium Hirtum All. As Affected by <i>2,4</i>-Dichlorophenoxyacetic Acid and Gibberellic Acid

Ormrod, D. P.; Williams, William A.

doi:10.1104/pp.35.1.81

Cited by 14 publications

(5 citation statements)

References 8 publications

(9 reference statements)

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“…A similar action of plant growth regulating substances in enhancing the oxidative phosphorylation activities at low concentration levels in mitochondria and their uncoupling effects at high concentrations have also been reported (McDaniei and Sarkissian 1,966, Stenlid and Saddik 1962, Moreland 1967, Ormrod and Williams 1960, Key et al 1960, Wedding ,and Black 1962.…”

Section: Oesupporting

confidence: 63%

Effect of Growth Regulators and Herbicides on Photosynthetic Partial Reactions in Isolated Leaf Cells

Kulandaivelu¹,

Gnanam²

1975

Physiologia Plantarum

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The effect of indoleacetic acid, gibberellic acid, 2,4‐dichloro‐phenoxyacetic acid and amitrole at various concentration levels ranging from 0.05 to 1.0 mM on the photosynthetic evolution of O2 and 14CO2 fixation by isolated leaf cells was studied. The plant growth regulators enhanced O2 evolution and 14CO2 fixation at low concentrations and were inhibitory beyond a critical level. The amitrole had an inhibitory effect at all the concentration levels used. All the substances exhibited similar patterns of effect on the ferricyanide reduction by isolated chloroplasts and on the electron transport rates of sub‐chloro‐plast particles containing PS‐I and PS‐II independently, under non‐phosphorylating conditions. As was seen from the response in all the three electron transport systems of the chloroplast studied, the electron transport chain connecting PS‐II and PS‐I could be considered as a possible site of action at least for the growth regulating substances as it is the only part that is common to all the three reactions. The phosphorylation associated with this part of the electron transport was “inhibited” by the substances even at the lowest concentration used. The stimulation of non‐phosphorylating electron flow, with a simultaneous reduction in the rate of ATP synthesis, at low concentration levels indicated that these substances played a possible uncoupling role. The amitrole on the other hand appeared to have a generalized non‐specific inhibitory action on all the partial reactions of photosynthesis.

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Section: Oesupporting

confidence: 63%

Effect of Growth Regulators and Herbicides on Photosynthetic Partial Reactions in Isolated Leaf Cells

Kulandaivelu¹,

Gnanam²

1975

Physiologia Plantarum

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“…The use of herbicides, insecticides, and fungicides did not change the concentration of phosphorus. Similar results were obtained after spraying clover with 2.4 D O. P. Omrod [11]. The authors did not find any studies and publications about the influence of treating the vegetating fodder galega with plant protection products and Albite on the productivity, the chemical composition, and the nutritional properties of the green mass remaining after seeds harvesting.…”

supporting

confidence: 59%

“…Increasing the protein content in the grains of legumes with the use of foliar fertilization was also noted by Meena, H. (2018) [6]. Spraying clover with the 2,4 DM herbicide increased the content of acid-soluble organic phosphorus and correspondingly decreased the content of inorganic phosphorus [11].…”

Section: Revised Manuscript Received On October 15 2019mentioning

confidence: 60%

The Effect o f Plant Protection Products a nd Albite o n t he Productivity a nd Quality o f Fodder Galega (Galega Orientalis)

Eryashev¹,

Timoshkin²

2019

IJEAT

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The research was aimed at scientific substantiation of the possibility to reach high productivity of fodder galega due to the use of plant protection products and the Albite growth regulator, and their effect on the fodder quality. To achieve this goal, the effect of these factors on the yield of green mass and dry matter, on the collection of gross energy, metabolizable energy of feed units, and digestible protein was studied in 2012 – 2014 during the field experiments and in laboratory studies. As a result of the studies, it has been found that galega had the greatest yield of dry matter, metabolizable energy, energy feed units, and digestible protein on the nonpesticide background with plants double sprayed with Albite, and on the pesticide background — in the phase of spring aftergrowing and budding. Prevailing accumulation of crude protein and calcium in the green mass was on the nonpesticide background with double spraying with Albite; of crude fiber — on the pesticide background in the phase of spring aftergrowing; of crude ash — in the phase of seedling + budding; and of crude fat — without introducing any growth regulator. Plant protection products and Albite did not significantly increase the concentration of nitrogen-free extractives (NFE) and phosphorus. The studied factors did not affect the content of gross energy (GE), metabolizable energy (ME) and energy feed units (EFU) in 1 kg of dry matter of galega green mass, and did not increase the concentration of digestible protein in EFU.

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“…As a result of this overgrowth, the stems of susceptible plants treated with auxin herbicides contain more water, ions, sugars, vitamins, nitrogen, aminoacids, proteins, DNA, RNA, and less nuclease activity, than stems of untreated plants (Brown 1946;Luecke et al 1949;Sell et al 1949;Omrod and Williams 1960;Key and Hanson 1961;Chrispeels and Hanson 1962;Shannon et al 1964;Cárdenas et al 1968;Chinalia et al 2007). Moreover, they also contain higher levels of the antioxidant ascorbic acid (Key and Wold 1961;Key 1962), known to have a role in the growth and the division of plant cells (Potters et al 2000;Horemans et al 2003;Córdoba-Pedregosa et al 2007).…”

Section: Introductionmentioning

confidence: 91%

Organ-specific effects of the auxin herbicide 2,4-D on the oxidative stress and senescence-related parameters of the stems of pea plants

et al. 2011

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Oxidative stress and senescence have been shown to participate in the toxicity mechanism of auxin herbicides in the leaves and roots of sensitive plants. However, their role in stem toxicity has not been studied yet. In this work, we report the effect of foliar or root applications of the auxin herbicide 2,4-dichlorophenoxyacetic acid (2,4-D) on the parameters of oxidative stress and senescence of stems of pea (Pisum sativum L.) plants. Contrary to their effect on the pea leaves, in the stems 2,4-D applications did not cause oxidative stress, as shown by the parameters of lipid peroxidation, protein carbonyls, and total and protein thiols. Moreover, they inhibited the superoxide radical (O 2 .-)-producing xanthine oxidase (XOD) activity and stimulated the antioxidant activities of catalase (CAT), guaiacol peroxidase (GPOX), ascorbate peroxidase (APX), glutathione reductase (GR), glutathione S-transferase (GST) and Krebs cycle NAD ? -isocitrate dehydrogenase (IDH). Applications of 2,4-D also did not induce senescence in the pea stems, as shown by the increase of proteins, the lack of stimulation of proteolytic activity, and the inhibition of senescence-related isocitrate lyase (ICL) activity. However, they stimulated the H 2 O 2 -producing acyl-CoA oxidase (ACOX) activity of fatty acid beta oxidation. Results suggest that oxidative stress and senescence are not involved in the mechanism of toxicity of 2,4-D in the stems of pea plants, and that these phenomena are not whole-plant toxicity mechanisms for auxin herbicides in susceptible plants.Results also suggest that the effect of 2,4-D on the oxidative metabolism of pea plants might be organ-specific.

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Phosphorus Metabolism of Trifolium Hirtum All. As Affected by 2,4-Dichlorophenoxyacetic Acid and Gibberellic Acid

Cited by 14 publications

References 8 publications

Effect of Growth Regulators and Herbicides on Photosynthetic Partial Reactions in Isolated Leaf Cells

Effect of Growth Regulators and Herbicides on Photosynthetic Partial Reactions in Isolated Leaf Cells

The Effect o f Plant Protection Products a nd Albite o n t he Productivity a nd Quality o f Fodder Galega (Galega Orientalis)

Organ-specific effects of the auxin herbicide 2,4-D on the oxidative stress and senescence-related parameters of the stems of pea plants

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