The effects of the combination of salinity and excess boron on the water relations of tolerant tomato (Solanum lycopersicum L.) cv. Poncho Negro, in relation to aquaporin functionality

Contreras, César Josué Chiquito; Montoya, Ana Maria Zapata; Pacheco, Patricia; Martínez-Ballesta, María del Carmen; Carvajal, Micaela; Bastías, Elizabeth

doi:10.5424/sjar/20110902-168-10

Cited by 8 publications

(10 citation statements)

References 65 publications

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“…This compost protects the protein structure against denaturation and stabilizes the cell membranes during interaction with phospholipids (Cervilla et al, 2007). Contreras et al (2011), evaluating the B and NaCl effects in Solanum lycopersicum plants, verified results similar to those found in this research.…”

Section: Discussionsupporting

confidence: 77%

Proline but not Glutathione Actively Participates in the Tolerance Mechanism of Young Schizolobium parahyba var. amazonicum Plants Exposed to Boron Toxicity

Silva

Lobato

Souza

et al. 2016

Not Bot Horti Agrobo

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Glutathione, a peptide frequently associated with the antioxidant mechanism of plants against reactive oxygen species, and proline, an amino acid whose function is related to cellular homeostasis, can both contribute to improve plant tolerance under situations of abiotic stress, such as boron toxicity. Aims of this research were to (i) quantify the oxidant and antioxidant compounds, (ii) evaluate the photosynthetic pigments, (iii) determine amino acids and PRO, and (iv) determine whether GSH and PRO contribute to the tolerance mechanisms in young Schizolobium parahyba var. amazonicum plants under B toxicity. This experiment tested five boron levels (25, 50, 100, 150 and 250 µM B), being evaluated physiological and biochemical variables. The values reported to proline levels presented significant variation for treatments with 50, 100, 150 and 250 µM B, with increases for the 150 and 250 µM B levels, being 45.2 and 52.4%, respectively. This study found that boron toxicity promoted similar behaviours in both the leaves and root, which included progressive increases in hydrogen peroxide, electrolyte leakage, amino acids and proline, and decreases in total glutathione, chlorophyll a, chlorophyll b and total chlorophyll, confirming that proline but not glutathione actively participates in the tolerance mechanism of young Schizolobium parahyba plants exposed to boron toxicity.

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Section: Discussionsupporting

confidence: 77%

Proline but not Glutathione Actively Participates in the Tolerance Mechanism of Young Schizolobium parahyba var. amazonicum Plants Exposed to Boron Toxicity

Silva

Lobato

Souza

et al. 2016

Not Bot Horti Agrobo

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“…In summary, the present and previous studies show that the "Poncho Negro" variety is able to adjust osmotically by increasing turgor, and no toxic effects of salinity and excess of B were observed (Contreras et al, 2011;Díaz et al, 2011). Masood et al, (2012) concluded that the effects of salt are different at different levels of B supply.…”

Section: Discussionmentioning

confidence: 93%

“…The functions of other compatible solutes such as glucose and sucrose include osmotic adjustment, carbon storage and radical scavenging (Parida et al, 2002). Previous studies reported high levels of soluble sugar and proline accumulated in leaves of "Poncho Negro" tomato plants grown under salinity and excess B, but the increase was different depending on the salinity and B treatment (Contreras et al, 2011;Díaz et al, 2011). In the present study the application of OM in soil changed the behaviour of plants, maintaining similar levels of both solutes compared to the control.…”

Section: Discussionmentioning

confidence: 99%

“…Under salinity these plants increased their turgor, possibly due to a decrease in leaf water potential through the reduction in the leaf osmotic potential by accumulation of soluble sugars and proline (Contreras et al, 2011); the interaction of B and salinity reduced the movement of Na + to the leaves by accumulating more leaf B (Díaz et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

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Remediation of salt and boron-affected soil by addition of organic matter: an investigation into improving tomato plant productivity

Esteban

Pacheco

Tapia

et al. 2016

Idesia

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To mitigate the effect of salt stress and excess B in soil and consequently increase crop yield and improve the behaviour of cv. "Poncho Negro" there are low-cost strategies such as the application of organic amendments. This study aimed at remediating excess salt (150 mM NaCl) and B (20 mg L -1 B) in soil using organic matter treatment (4% and 6%). Stress was supplied by irrigation. The rate of net CO 2 assimilation, B, Na + , K and Ca 2+ content, soluble sugars and proline were measured. All growth parameters measured were higher with 6% organic matter (OM) in soil than with 4% OM, including salinity treatments and excessive B, while Na + and B concentrations were reduced in leaves and roots. The photosynthesis rate was maintained at the level of control plants with 6% OM applied in soil in treatments with salinity alone and with excess B. In the salinity alone treatment there was a marked increase in the content of compatible solutes, but with the application of 6% OM their content was reduced by more than 100%. The remediation of salt and boron-affected soil by addition of organic matter (6%) is an effective way to improve the behaviour of tomato.Key words: organic matter, boric acid, salinity, Solanum lycopersicum L. RESUMEN Para mitigar el efecto del estrés de sal y exceso B en el suelo y, consecuentemente, aumentar y mejorar el comportamiento de cv. de tomate "Poncho Negro", como una estrategia de bajo costo como es la aplicación de enmiendas orgánicas. Este estudio tuvo como objetivo remediar el exceso de sal (NaCl 150 mM) y B (20 mg L -1 B) en el suelo mediante el tratamiento de aplicación de materia orgánica (4% y 6% M.O.). El estrés

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“…Proline is an amino acid synthetized into nitrogen metabolism with functions related to osmoprotection [82] and cellular homeostasis [83], which can contribute to improve the plant tolerance under situations of abiotic stress, as B toxicity.…”

Section: Boron Toxicity Induces Modifications In Nitrogen Metabolismmentioning

confidence: 99%

Tolerance of Plants to Toxicity Induced by Micronutrients

Lobato¹,

Lima²,

Lobato³

et al. 2016

Abiotic and Biotic Stress in Plants - Recent Advances and Future Perspectives

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Micronutrient elements such as zinc, boron copper, iron, manganese, molybdenum, and chlorine are frequently responsible by the regulatory activity of the cell organelles, being nutrients that are absorbed and found in lower concentrations in plant tissues, they also contribute to supply the nutritional exigency of the plant. Study with Zea mays plants exposed to Zn toxicity + Si presented significant increases in stomatal conductance, net photosynthetic rate, transpiration rate, and water use efficiency, respectively, in comparison with treatment only with Zn. In relation to chlorophylls a, b and total and carotenoids presented non-significant increases, when compared to plants exposed to Zn toxicity. This study revealed the positive contribution of the Si on gas exchange and reduction of the negative effects provoked on chlorophylls and carotenoids in maize plants under Zn toxicity. Other results described that prolonged exposure to excessive Cu resulted in serious toxic effects on the rice seedlings. In contrast, Tre pretreatment has been shown to be beneficial in alleviating Cu toxicity, which was mainly attributed to the ability of Tre to restrict Cu uptake and accumulation to maintain Cu homeostasis, and to induce production of antioxidant and Gly enzymes to alleviate excessive Cu-triggered oxidative stress. Stress caused by the excessive supply of micronutrients to plants frequently promotes repercussions on oxidant system, inducing the overproduction of reactive oxygen species. The oxidative damage is a situation characterized by the large ROS accumulation and insufficient detoxification promoted by antioxidant enzymes, such as catalase and glutathione peroxidase. Different mechanisms have been proposed to explain the tolerance of plants to toxicity induced by micronutrients, as uses of other elements and substances, in which it can positively act with specific transporters, metal ion homeostasis and compartmentalization of micronutrients into the vacuole. Keywords: gas exchange, antioxidant metabolism, metals, photosynthetic pigments © 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. . IntroductionLarge amounts of minerals and organic materials can be found in soil [ ] and some of these materials have great significance in the anatomical development and plant morphology. The soil fertility is an important factor of agronomic order. It is related to provision of essential elements in the soil, where the plant will absorb adequate levels of important substances to work with its metabolism [ ]. The nutrients are arranged in ionic form, which can interact with the root system of plants via three mechanisms interception root, diffusion, or mass flow [ ].The plants require basic conditions to develop and supply the essential elements to aid with the metabolism ...

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The effects of the combination of salinity and excess boron on the water relations of tolerant tomato (Solanum lycopersicum L.) cv. Poncho Negro, in relation to aquaporin functionality

Cited by 8 publications

References 65 publications

Proline but not Glutathione Actively Participates in the Tolerance Mechanism of Young <i>Schizolobium parahyba</i> var. <i>amazonicum </i> Plants Exposed to Boron Toxicity

Proline but not Glutathione Actively Participates in the Tolerance Mechanism of Young <i>Schizolobium parahyba</i> var. <i>amazonicum </i> Plants Exposed to Boron Toxicity

Remediation of salt and boron-affected soil by addition of organic matter: an investigation into improving tomato plant productivity

Tolerance of Plants to Toxicity Induced by Micronutrients

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