Effects of Tomatex /Triacontanol/ on chlorophyll fluorescence and tomato (Lycopersicon esculentum Mill.) yields

Borowski, Edward; Blamowski, Zbyszek K.; Michałek, Władysław

doi:10.1007/s11738-000-0030-5

Cited by 19 publications

(15 citation statements)

References 9 publications

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“…They explained that increased Fo value indicated that TRIA increased the antenna pigment level or the efficiency of excitation trapping at the active centers of PS-II. These data were similar with those obtained in tomato (Borowski et al 2000). They further reported a quantitative increase (30% increase over the control) in RuBisCO as a result of TRIA application.…”

Section: Physiological and Biochemical Attributessupporting

confidence: 89%

“…Improvement in yields of several important food crops have been recorded by several researchers as a result of TRIA application Ries 1985;Kawashima et al 1987). Borowski et al (2000) reported significant increase in tomato yield as result of TRIA application at 0.3 and 3.0 mg L Á1 . Similar results have been reported by Asane et al (1998), Barus (1998), andBlamowski et al (1998) on peas, plum, and radish, respectively.…”

Section: Yield and Quality Attributesmentioning

confidence: 98%

“…These results are discussed in terms of specific concentration-dependent TRIA-induced alterations of the dynamic properties of protoplast and chloroplast membranes and their possible involvement in the initiator and integral physiological response to exogenous application of TRIA (Ivanov and Angelov 1997). In a study, Borowski et al (2000) revealed that the maximum efficiency of PS-II in the dark (Fv/Fm) was clearly increased by the applied TRIA, and the efficiency of excitation-capture by PS-II reaction centers (Fv/Fm) were even much increased. In fact, a number of studies have demonstrated an increased rate of CO 2 fixation and photosynthesis in a variety of plant species as a result of TRIA application in nanomolar concentrations (Houtz et al 1985a;Ivanov and Angelov 1997).…”

Section: Physiological and Biochemical Attributesmentioning

confidence: 99%

“…Past decades have witnessed much success in increasing the yield of food crops and vegetables using TRIA (Bouwkamp and McArdle 1980;Eriksen et al 1981;Ries and Houtz 1983;Hashim and Lundergan 1985;Ries 1985;Stoutemyer and Cooke 1987;Borowski et al 2000;Muralidharan et al 2000). The first published report on TRIA showed a significant increase in yield on several crops including dry beans, sweet corn, and cucumbers Ries and Houtz 1983).…”

Section: Yield and Quality Attributesmentioning

confidence: 99%

“…Many researchers have reported the positive role of TRIA in enhancing growth, yield, photosynthesis, nitrogen fixation, enzymes activities, free amino acids, reducing sugars, and soluble protein of plants (Ries 1991;Ries et al 1993;Nagoshi and Kawashima 1996;Borowski et al 2000;Naeem et al 2009;Aftab et al 2010;Idrees et al 2010;Naeem et al 2010. Muthuchelian et al (1997Muthuchelian et al ( , 2003 investigated the significant effect of TRIA on acid mist-treated Erythrina variegata L. seedlings with particular emphasis on growth, photosynthetic pigments, ribulose-1,5-bisphosphate (RuBPC), and photosynthetic activity.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Physiological and Biochemical Attributessupporting

confidence: 89%