The metabolism of cyclohexanecarboxylic acid in phaseolus vulgaris

Severson, John G.; Bohm, Bruce A.; Seaforth, C.E.

doi:10.1016/s0031-9422(00)86620-0

Cited by 6 publications

(3 citation statements)

References 10 publications

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“…The formation of glucose conjugates of IAA, BA, and NAA, and the aspartic acid conjugates of IAA, BA, NAA, and 2,4-D has been known for some time, but the conjugates of glucose and aspartic acid with CHC were only recently reported (11). The sequence, CHC-G followed by CHC-A, reported in this paper, was the same as that observed with the conjugates of IAA by Zenk (19).…”

Section: Methodssupporting

confidence: 83%

Metabolism and Distribution of Cyclohexanecarboxylic Acid, a Plant Growth Stimulant, in Bush Bean

Padmanabhan

Wort²

1977

Plant Physiol.

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Section: Methodssupporting

confidence: 83%

Metabolism and Distribution of Cyclohexanecarboxylic Acid, a Plant Growth Stimulant, in Bush Bean

Padmanabhan

Wort²

1977

Plant Physiol.

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“…Following the discovery that cyclohexanecarboxylic acid, an individual member of the naphthenic acid mixture, was an effective plant growth stimulant (20), Severson et al (18) showed that cyclohexanecarboxylic acid, administered to leaf discs of P. vulgaris, is converted to conjugates of glucose and ON BEAN N METABOLISM 165 of aspartic acid. Padmanabhan (12) further found that when radioactive cyclohexanecarboxylic acid is applied to the surface of a primary leaf of the bush bean plant it is quickly absorbed and is rapidly converted to the conjugate forms.…”

Section: Discussionmentioning

confidence: 99%

Mechanism of Plant Growth Stimulation by Naphthenic Acid

Wort

Severson²,

Peirson³

1973

Plant Physiol.

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Fourteen-day-old Phaseolus vulgaris L. cv. Top Crop (bush bean) plants were sprayed with the plant growth stimulant, potassium naphthenate (20 mM). Seven days after treatment the contents of glutamic acid dehydrogenase, glutamic-oxaloacetic transaminase, nitrate reductase, glutamine synthetase, and cytochrome oxidase in the trifoliate leaf blades of treated plants were significantly larger, and the specific activity of the last four was significantly greater. Potassium nephthenate (1 AM) in the assay solutions did not significantly alter the activity of these enzymes in the cell-free extracts of untreated plants. Leaf Naphthenic acid is the name applied to the complex mixture of acids extracted from petroleum. The diesel oil fraction (180-400 C) may contain 0.03% naphthenic acid. The structure of the individual higher molecular-weight acids in the mixture has yet to be determined, but it is known that others are carboxylic derivatives of cyclopentane, cyclohexane, and cyclo- heptane. The carboxyl group of most of the acids is separated from the saturated ring by an aliphatic side chain containing one or more methylene groups. In our laboratory, gas-liquid chromatography of naphthenates derived from the diesel fraction of a Venezuelan crude oil yielded a tracing in which most of the components appeared to be in the C. to C17 range.Within this range there were 25 major peaks.The acid mixture and some of its individual members have been shown to stimulate the vegetative and reproductive growth of a large variety of plants. Severson (16) has tabulated their effects on growth, yield, and composition of over 50 species.The stimulated growth of the green bush bean, Phaseolus vulgaris L. cv. Top Crop, following naphthenate application, has been shown to be accompanied by increased rates of photosynthesis and respiration, and greater specific activity of phosphorylase, phosphoglycerate kinase, nitrate reductase, and glutamic-pyruvic transaminase (5). The activity of catalase in grape (9) and of peroxidase and ascorbic acid oxidase in cotton (1) has also been found to be stimulated as a result of naphthenate application.It has been suggested (5) that the stimulation of plant growth by naphthenates rests to a large extent on an increased flow of metabolic intermediates and a greater supply of energy as ATP, coupled with an enhanced activity of anabolic enzymes.The investigation described below uses Phaseolus vulgaris cv. Top Crop in a study of the effect of KNap' on the amount and activity of four enzymes of nitrogen metabolism and of cytochrome oxidase; the contents of DNA and RNA, amino acids, and protein; and the incorporation of '4C-leucine into protein.MATERIALS AND METHODS Growth of Plants. Five seeds of the bush bean Phaseolus vulgaris L. cv. Top Crop were sown in 15-cm pots of composted soil. Seven days later the seedlings were thinned to two per pot, and 5 days after this one plant was allowed to remain. As a result, the population was very uniform.The plants were grown in a growth room fitted with coo...

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“…Aus jungster Zeit gibt es mehrere Publikationen, in denen das Auftreten von Konjugaten zwischen systemischen Wirkstoffen und Aminosauren bzw. Oligopeptiden in hoheren Pflanzen beschrieben wird (Severson et a/., 1970;Lamoureux et aL, 1970;Lamoureux, Stafford & Tanaka, 1971…”

Section: R^sum^unclassified

ZUM METABOLISMUS VON FLURENOL‐n‐BUTYLESTER IN HÖHEREN PFLANZEN*

Wotschokowsky

1972

Weed Research

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The metabolism of cyclohexanecarboxylic acid in phaseolus vulgaris

Cited by 6 publications

References 10 publications

Metabolism and Distribution of Cyclohexanecarboxylic Acid, a Plant Growth Stimulant, in Bush Bean

Metabolism and Distribution of Cyclohexanecarboxylic Acid, a Plant Growth Stimulant, in Bush Bean

Mechanism of Plant Growth Stimulation by Naphthenic Acid

ZUM METABOLISMUS VON FLURENOL‐n‐BUTYLESTER IN HÖHEREN PFLANZEN*

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