Study of Absorption, Translocation, and Residue Properties of 2,3,5-Triiodobenzoic Acid in Field-Grown Soybeans

Spitznagle, Larry A.; Christian, John E.; Ohlrogge, A. J.; Breckinridge, C.E.

doi:10.1002/jps.2600570508

Cited by 9 publications

(3 citation statements)

References 7 publications

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“…These results _indicate the .1-131 moved rapidly into the developing new leaves, and when they matured, the 1-131 was moved out of the same tissue into other sinks. Similar but more erratic results were obtained with C-14 labelled TIBA by Spitznagle et al (9). The parallelism of the two curves of Fig.…”

Section: The Plant Partssupporting

confidence: 85%

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)¹

Sant'Anna¹,

Ohlrogge²,

Christian³

et al. 1970

Agronomy Journal

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The anticipated commercialization of TIBA as one of the first growth regulators for use on a major field crop in the USA, created a need for information on its absorption and movement in the soybean plant under field conditions. Such information would be of assistance in metabolite and residue studies. TIBA tagged with I‐131 was applied at early bloom in two field experiments and in a third study it was applied at the beginning of the pod filling stage of growth. Whole plants were sampled periodically, divided into their morphological parts and their dry weights and I‐131 activities were determined. Approximately 45 percent of the total activity measured at “zero time” was lost from the plants within 48 hours. Biological half lifes of 40.3 and 42.0 days were found for the I‐131 in the early spray experiments. The rapid absorption and movement into the vascular stream was indicated by the detection of I‐131 activity in the roots of the “zero time” samples. Sites of active TIBA I‐131 activity were regions of high meristematic activity. Such sites of accumulation loss I‐131 activity to other areas when their relative metabolic activity declined. Ultraviolet light was shown to cause small but significant deiodozation of TIBA. Sixty days after TIBA was applied the plant parts were found to contain the following percentages of the applied radioactivity: roots 4%, leaves that were sprayed with TIBA 15%, leaves that emmerged after TIBA application 1.5%, petioles that received application of TIBA 2.5%, stems 3.0%, pods including seeds 7%. When the TIBA was applied at the beginning of the pod filling period, the seeds at physiological maturity contained 0.56 ppp TIBA equivalent or 2.5% of the originally applied activity.

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Section: The Plant Partssupporting

confidence: 85%

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)¹

Sant'Anna¹,

Ohlrogge²,

Christian³

et al. 1970

Agronomy Journal

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“…In addition, it was shown that the uptake of [^"^CJ-NAA by mung bean segments was 6-fold greater in the presence of DTNB than in its absence (Arteca 1982a). Application of the auxin transport inhibitor 2,3,5triiodobenzoic acid (TIBA) has been shown to increase seed yield in sunflower, soybean, snapbean, bengalgram and redgram (Sant'Anna et al 1970, Spitznagle et al 1968), TIBA is known to prevent basipetal movement of auxin, and it has been suggested that basipetal movement of other growth regulators may also be inhibited by TIBA (Prasad and Krishna Sastry 1978). TIBA is regarded as a weak auxin antagonist in stem tissue, being able to suppress the activity of auxin at high concentrations while having no significant auxin activity itself (Katekar and Geissler 1980).…”

mentioning

confidence: 99%

Inhibition of IAA‐induced ethylene production in etiolated mung bean hypocotyl segments by 2,3,5‐triiodobenzoic acid and 2‐(p‐chlorophenoxy)‐2‐methyl propionic acid

Tsai

Arteca

1984

Physiologia Plantarum

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1984. Inhibition of IAA-indueed ethylene production in etiolated mung bean hypocotyl segments by 2,3,5-triiodoben2oic acid and 2-(pclilorophenoxy)-2-methyl propionic acid, -Physiol. Plant. 62: 448-452.The effect of two auxin antagonists, 2,3,5-triiodobenzoic acid (TIBA) and 2-(p-chIorophenoxy)-2-methyl propionic acid (CMPA) on IAA-indueed ethylene production in etiolated mung bean hypocotyl {Vigna radiata L. Rwiicz cv. Berken) segments was studied. Both TIBA and CMPA inhibited IAA-indueed ethylene production and CO2 production at concentrations from 0.001 mM to 0.1 mM and 0.01 mM to 1,0 mM, respectively. The optimum concentration for inhibition of ethylene production by TIBA was 0.05 mM and CMPA was 0.5 mM. At the optimum concentration of TIBA and CMPA, there was a significant decrease in IAA-indueed ethylene production without a decrease in respiration rates below control levels. After 18 h, mung bean hypocotyl segments treated with 0.05 mM TIBA for 6 h or 0.5 mM CMPA for 8 h showed a maximum inhibition of IAA-indaced ethylene production. Treatments longer than 8 h caused no further inhibition. The uptake of ['''C]-naphthaleneaeetic acid by mung bean segments was greatly reduced by the addition of either TIBA (0,05mM) or CMPA (0.5 mM) to the incubation media. The results of treatment sequences showed that TIBA needed to be applied prior to IAA in order to inhibit IAA-indueed ethylene production, but CMPA caused the same inhibitory effect whether applied before or after IAA treatment. These findings provide evidence that TIBA inhibits auxin-induced ethylene production in etiolated mung bean hypocotyl segments by blocking auxin movement into the tissue whereas CMPA may work on both auxin transport and action.Additional key words -Vigna radiata.

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“…Since a residue of TIBA remains in soybeans grown from treated plants (2), the potential environmental health hazard of TIBA should be investigated prior to the general usage of the compound in agriculture. Their studies showed that TIBA caused the plants to change from vegetative to reproductive development more rapidly and also caused morphological changes which permitted more efficient utilization of sunlight by the plants.…”

mentioning

confidence: 99%

Metabolic Fate of 2,3,5-Triiodobenzoic Acid in Laying Hens

Rowles

Born

Christian

et al. 1970

Journal of Pharmaceutical Sciences

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Study of Absorption, Translocation, and Residue Properties of 2,3,5-Triiodobenzoic Acid in Field-Grown Soybeans

Cited by 9 publications

References 7 publications

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)¹

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)¹

Inhibition of IAA‐induced ethylene production in etiolated mung bean hypocotyl segments by 2,3,5‐triiodobenzoic acid and 2‐(p‐chlorophenoxy)‐2‐methyl propionic acid

Metabolic Fate of 2,3,5-Triiodobenzoic Acid in Laying Hens

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Study of Absorption, Translocation, and Residue Properties of 2,3,5-Triiodobenzoic Acid in Field-Grown Soybeans

Cited by 9 publications

References 7 publications

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)1

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)1

Inhibition of IAA‐induced ethylene production in etiolated mung bean hypocotyl segments by 2,3,5‐triiodobenzoic acid and 2‐(p‐chlorophenoxy)‐2‐methyl propionic acid

Metabolic Fate of 2,3,5-Triiodobenzoic Acid in Laying Hens

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Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)¹

Foliar Absorption and Distribution of 2,3,5‐Triiodobenzoic Acid (TIBA) in Soybeans (Glycine max)¹