Growth Enhancement of Plants by Femtomole Doses of Colloidally Dispersed Triacontanol

Laughlin, Robert G.; Munyon, R. L.; Ries, S. K.; Wert, Violet

doi:10.1126/science.219.4589.1219

Cited by 46 publications

(26 citation statements)

References 10 publications

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“…TAS alone or distilled H20 were used as controls. As reported previously for higher plants (14), TAS lacked biological activity at the concentrations used on Chlamydomonas.…”

Section: Methodsmentioning

confidence: 60%

“…4). This difference in ability to bind [14] TRIA may be related to the absence ofan effect ofTRIA on photosynthetic CO2 assimilation, by Chlamydomonas cells cultured with air as discussed later. The relationship between the number of TRIA particles bound to Chlamydomonas cells grown at high-CO2 and the concentration of TRIA is shown in Figure 5 (Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Chl was determined by the method of Arnon (1). TRIA was applied as a sterile aqueous colloidal dispersion (800 to 1000 gg/ml stock concentration) containing TAS as the dispersive agent, present at 1% the level of TRIA (14). TAS alone or distilled H20 were used as controls.…”

Section: Methodsmentioning

confidence: 99%

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Effect of Triacontanol on Chlamydomonas

Houtz¹,

Ries²,

Tolbert³

1985

Plant Physiol.

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Treatment of Chiamydomonas reinhardtii cels, cultured at 5% C02, with 1 to 1000 micrograms triacontanol (TRIA) per liter resulted in 21 to 35% increases in cell density, 7 to 31% increases in total chlorophyll, and 20 to 100% inreases in photosynthetic CO2 assimilation. The increase in CO2 fixation with TRIA treatment occurred before, and was independent of, increases in total chlorophyll or cell number. Chkanydomonas cells responded to a broad range of TRIA concentrations that were at least one order of maitude above the optimum coantration established for higher plants. The TRIA on photosynthetic C02 assimilation. TRIA treatment did not alter the distribution of '4C-label among photosynthetic products. The effect of TRIA on photosynthetic CO2 assimilation increased with time after treatment up to 3 days. Chlamydomona,cells that had been grown at IOW-CO2 (air) did not respond to TRIA, and transfer of high-O2 (5%) grown cells that had responded to TRIA to a low-CO2 atmosphere resulted in a loss ofthe effect ofTRIA. The effect ofpH on photosynthetic CO2 assimilation indicated that CO2 is probably the species of inorganic carbon utilized by control and TRIA-treated Chlamydomonas cels.

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“…TAS alone or distilled H20 were used as controls. As reported previously for higher plants (14), TAS lacked biological activity at the concentrations used on Chlamydomonas.…”

Section: Methodsmentioning

confidence: 60%

Section: Methodsmentioning

confidence: 99%

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Effect of Triacontanol on Chlamydomonas

Houtz¹,

Ries²,

Tolbert³

1985

Plant Physiol.

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“…Biostimulan Orgamin mengandung bahan aktif TRIA yang merupakan alkohol jenuh berantai panjang. Senyawa yang secara alami terdapat pada tanaman alfafa ini (Ries et al, 1977), dilaporkan memiliki aktivitas pemacu pertumbuhan tanaman (Laughlin et al, 1983). Aplikasinya pada beberapa tanaman dilaporkan meningkatkan pertumbuhan dan produktivitas tanaman secara signifikan (Kilic, 2010;Khan, 2009;Naeem, 2011).…”

Section: Hasil Dan Pembahasanunclassified

Penggunaan biostimulan Orgamin untuk efisiensi pemupukan dan peningkatan produktivitas kelapa sawit di dataran tinggi Application of Orgamin biostimulan to enhance fertilizer efficiency and productivity of oil palm grown in highland

WIDIASTUTI¹,

SANTOSO²,

PUTRA³

et al. 2016

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“…As per earlier studies of , TRIA is active at concentrations as low as 10 mg L Á1 (2.3)10 -8 M) when applied either to shoots or roots of a crop. Since TRIA is extremely insoluble in water (2 )10 -16 M or 9)10 Á14 g L Á1 ), the solution of TRIA has been formulated as a stable colloidal dispersion of fine crystalline particles in water (Laughlin et al 1983). This formulation indicates accurate quantification of the application rate and a smooth dose-response curve for dry weight gain of corn as a result of TRIA application.…”

Section: Physiological Activity Of Tria At Low Concentrationsmentioning

confidence: 99%

Triacontanol: a potent plant growth regulator in agriculture

Naeem

Khan

Moinuddin

2012

Journal of Plant Interactions

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Triacontanol (TRIA) is a natural plant growth regulator found in epicuticular waxes. It is used to enhance the crop production in millions of hectares, particularly in Asia. Quite a number of researchers have reported the TRIA-mediated improvement in growth, yield, photosynthesis, protein synthesis, uptake of water and nutrients, nitrogen-fixation, enzymes activities and contents of free amino acids, reducing sugars, soluble protein, and active constituents of essential oil in various crops. Expectedly, TRIA enhances the physiological efficiency of the cells and, thus, exploits the genetic potential of plant to a large extent. In fact, TRIA increased free amino acids, reducing sugars, and soluble protein of rice (Oryza sativa L.) and maize (Zea mays L.) within 5 min. TRIA elicited the appearance of L(')-adenosine within 1 min in the roots of plants, the shoots of which were sprayed with nanomolar concentrations of TRIA. TRIA and octacosanol (OCTA), the primary alcohols, are ubiquitous in the environment. OCTA was reported to inhibit the activity of TRIA in the seedlings of rice (Oryza sativa L.) at equimolar concentrations; and both TRIA and OCTA elicited a second messenger, known as OCTAM and triacontanol second messenger (TRIM), respectively. TRIA rapidly increases the ratio of L(')-to D(Á)-adenosine, probably at the tonoplast. However, it is to be resolved as to how TRIA elicits L(')-adenosine and what is the source of L(')-adenosine in plants. Based on known metabolic processes, de novo synthesis of L(')-adenosine is unlikely, because of the rapidity of the response. TRIA-mediated increase in dry matter production could influence the inter-relationship between primary and secondary metabolism, leading to increased biosynthesis of secondary products. Various studies present strong evidences that application of TRIA applied either to the root medium or to leaves enhanced the growth and yield of vegetables and other crops, including agronomic and horticultural crops as well as medicinal and aromatic crop plants under normal and adverse conditions. However, further investigations are required to elucidate the possible role of TRIA on plant growth regulation, physiological activities and secondary metabolite biosynthesis regarding medicinal and aromatic plants subjected to abiotic stress. The present review covers the pivotal role of TRIA in plant growth and development, its mode of action and its significance in improving the crop productivity and quality of agricultural crops.

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Growth Enhancement of Plants by Femtomole Doses of Colloidally Dispersed Triacontanol

Cited by 46 publications

References 10 publications

Effect of Triacontanol on Chlamydomonas

Effect of Triacontanol on Chlamydomonas

Penggunaan biostimulan Orgamin untuk efisiensi pemupukan dan peningkatan produktivitas kelapa sawit di dataran tinggi Application of Orgamin biostimulan to enhance fertilizer efficiency and productivity of oil palm grown in highland

Triacontanol: a potent plant growth regulator in agriculture

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