thiourea use in agriculture
Influence of plant growth regulators on growth performance and photosynthetic pigments status of Eruca sativa Mill. Antioxidants may protect against degenerative diseases such as diabetes, cardiovascular diseases, and cancer that can be initiated by cellular damage resulting from excessive reactive oxygen species (ROS) that disrupt nucleic acids, proteins, and lipid molecules (Liu, . 2.1. 2012 ; Miranda et al. In our study, low concentration (250‒750 mM) of applied thiourea improved carotenoids content. During the culture period, from October 10 to January 26, monthly weather records set each day give minimum of 9°C and maximum of 21 ° C maxima of temperature regime. The samples were then sligghtly disintegrated in narrower beakers with a glass rod and 10-15 ml acetone was added. Potential of foliar applied thiourea in improving salt and high temperature tolerance of bread wheat (Triticum aestivum L.). Two parallel determinations with each sample were performed (Lachman et al., 2000). Bahrman N ., Gouy A., Devienne-Barret F., Hirel B., Vedele F., Le Gouis J. One month after planting, potassium sulphate (K2O 54%: 400 kg.ha-1) and ammonium nitrate (NH4 NO3); (N 33% :100 kg.ha-1) are also incorporated. Bot. (1997). Journal of Stress Physiology & Biochemistry, 8 (3) : 61-71. These findings are in agree with works of Zhu et al. The results suggested that this feedback mechanism was activated in plants treated with low levels of thiourea. Edited by Lea PJ, Morot-Gaudry JF. The absorbance of the acetone extracts was the measured in 1 cm cuvettes at λ = 444 nm against acetone and the total carotenoid content in mg/kg of sample was expressed as lutein equivalent from the equation : (K+ X) L = A 444. Moreover, the results underline the strict relationship between nitrate accumulation and carbon metabolisms in potato tuber in response to thiourea. Taken together, in roots where photosynthesis cannot satisfy this request and/or the demand of carbon skeleton is high, sucrose pool was also affected. Besides, nitrates content is an important quality characteristic of vegetables. (2000). 2009; Navarre et al. Soc. 2007). 2007; Anjum et al. Afr. This revealed that thiourea toxicity was offset by lowest concentration of Carotenoids most likely due to their antioxidative properties (Havaux et al. Data were collected from twenty one plants for each treatment and each concentration. Food . 2003). solution was added and the volume was made up to the mark with distilled water. Thiourea modulates the expression and activity profile of mtATPase under salinity stress in seeds of Brassica juncea. 2006). Plant Nutr. These findings further supported the notion that thiourea is a bioregulator of growth. The filtrates were cantitatively transferred to 25 ml volumetric flasks and made up to the mark (if resulting extract volume was over 25 ml, the redundant acetone was evaporated under nitrogen flow). Singlet oxygen in plants: production, detoxification and signaling. Agron. American Journal of Potato Research. (1997). 2007). 87, (6) : 479-491. Stability of phytochemicals during processing Beneficial phytochemicals in potato a review. Besides, nitrates content is an important quality characteristic of vegetables. Fert. Nonetheless, use of thiourea at the lower levels is economical, and likely to have great physiological implications in potato plant biology. Competition for amino acids between wheat roots and rhizosphere microorganisms and the role of amino acids in plant N acquisition. 2 H2H in 1l). Laboratory manual of food analysis, SNTL, Prague. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Santamaria P. (2006). Nonetheless, in-depth studies are imperative to figure out such a role of thiourea. thesis, High Agronomic Institute, Chott Mariem, Tunisia, 69 p. Mani F., Bettaieb T., Zheni K., Doudech N., and Hannachi C. (2012). Oaks A ., Hirel B. Harris N., Foster JM., Kumar A., Davies HV., Gebhardt C., Wray JL. Lamattina L., Garcìa-Mata C. (2003). The influence of thermal process of coloured potatoes on the content of glycoalkaloids in the potato products. 2011). Extra and intracellular pH and membrane potential changes by K+, Cl-, H2PO4 and NO3 uptake and fusicoccin in root hairs of Limnobium stoloniferum .Plant Physiol, 94:1561-1567. Other-workers (Barchman et al. Ezekiela R., Singhb N., Sharmab S., Kaurb A. Nitric oxide is involved in nitrate-induced inhibition of root elongation in Zea mays. 2002, Scavasankar et al. Sci. Agriculture Use Of Thiourea directory ☆ Agriculture Use Of Thiourea manufacturers, suppliers ☆ Agriculture Use Of Thiourea buyers, importers, wholesalers, distributors Herbers, K. and U. Sonnewald. (2005). Peeled potato tubers were homogenised in the shortest time using a mixer and for the determination 10 g was weighed into 100 ml volumetric flask. Food Research International . (1997). After agitation and 3 min standing, 7.5 ml 20% Na2CO3 p.a. These data sustain the hypothesis that thiourea could be involved in lipid metabolism of the chloroplast that is strictly depending on photosynthetic activity (Zhao et al. Rockel P ., Strube F., Rockel A., Wildt J., Kaiser WM.(2002). Nevertheless, tubers being directly exposed to thiourea may pose itself as a weakened sink in utilizing assimilates for cellular growth (Herbers and Sonnewald 1999; Who 2003; Ge et al. This suggests that higher level of thiourea probably suppressed the water and minerals absorption by roots, thereby causing their deficiency within the plants and yellowing of leaves. Anthocyanins from purple sweet potato attenuate dimethylnitrosamine-induced liver injury in rats by inducing Nrf2-mediated antioxidant enzymes and reducing COX-2 and iNOS expression. Further analyses are needed to unravel this possible intriguing role of thiourea. Thiourea protects against copper-induced oxidative damage by formation of a redox-inactive thiourea-copper complex. Functional food characteristics of potato cultivars (. Ann Bot, 100:497-503. Toxicolo. (2011). They indicates that thiourea provided protection against protein oxidation and also significantly inhibited oxidation of ascorbate. Traditional and nontraditional plant growth regulators alter the growth and photosynthetic pigments in Mentha piperita Linn. USE: Thiourea is a commercially important chemical that is mainly used to make other chemicals used in textile and wool processing and mineral ore processing. Selection of treatments was made based on the information from previous studies involving the exogenous application of thiourea. Caffeic acid derivatives, particularly chlorogenic acid, are themain phenolic constituents in potatoes and can contribute approximately 90 % of the total phenolic content (Wegener and Jansen 2011 ; Nassar et al. Bot. Owen AG., Jones D. (2001). It is therefore suggested that thiourea is the potential bioregulator for improving photosynthetic efficiency and yield of potato (Mani et al. Concise International Chemical Assessment Document 49: Thiourea. High levels of thiourea increased polyphenols and ascorbic acid content in potato tubers. A 2-year field trial was conducted to study the effects of seed treatment (500 ppm) or foliar application of 1000 ppm thiourea (at 25 and 40 days after sowing) or a combination of these, on growth, yield, net photosynthesis and nitrogen metabolism of clusterbean (Cyamopsis tetragonoloba (L.) Taub.) Sci. In fact, phenolics are a large group of small molecular weight compounds that determine organoleptic properties and con-tribute antioxidant activity. J. Environ. Palmgren MG. (2001). 57(14) : 3727–3735. Pagnussat G: Nitric oxide: the versatility of an extensive signal molecule. Soc. Sci. The experiments were conducted in automn season (Ocober‒January) of 2011 and 2012. 21, No. 2013). Polyphenol compounds were expresse as gallic acid content on dry matter (DM) basis. Food Chemistry Volume 127 (1): 34–41. Thiourea (250, 500, 750 and 1000 mM) was tested as seed- potato soaking before planting. Thus. While low values were found in control tubers (carotenoids = 9,4 mg/kg), and this value was also statically dignificant (P = 0.0031). (2000). Journal of the Science of Food and Agriculture.
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