Abscisic Acid May Alter the Salicylic Acid-Related Abiotic Stress Response in Maize

Pál, Magda; Janda, Tibor; Szalai, Gabriella

doi:10.1111/j.1439-037x.2011.00474.x

Cited by 35 publications

(14 citation statements)

References 48 publications

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“…After 14 days of growth in modified Hoagland solution, the wheat plants were treated hydroponically with 0.15 mM ABA or 0.5 mM PUT for 24 h and part of the 15-day-old plants were sampled with the control from the same day (C: without any treatment). Concentrations were chosen based on our previous results, where 0.1 mM ABA pre-treatment for 2 days effectively decreased chilling injury in maize 43 and where 0.5 mM PUT pre-treatment for 7 days alleviated PEG-induced osmotic stress in maize and wheat 18 , and these treatments also efficiently induced changes in the antioxidant enzyme activities and SA content. After a gentle but thorough root washing in distilled water twice, another part of the plants was divided into six groups.…”

Section: Methodsmentioning

confidence: 99%

Interaction of polyamines, abscisic acid and proline under osmotic stress in the leaves of wheat plants

Pál

Tajti

Szalai

et al. 2018

Sci Rep

140

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The exact relationship between polyamine, abscisic acid and proline metabolisms is still poorly understood. In the present study, the effects of putrescine and abscisic acid treatments alone or in combination with polyethylene glycol-induced osmotic stress were investigated in young wheat plants. It was observed that abscisic acid plays a role in the coordinated regulation of the proline and polyamine biosynthetic pathways, which compounds are related to each other through a common precursor. Abscisic acid pre-treatment induced similar alteration of polyamine contents as the osmotic stress, namely increased the putrescine, but decreased the spermidine contents in the leaves. These changes were mainly related to the polyamine cycle, as both the synthesis and peroxisomal oxidation of polyamines have been induced at gene expression level. Although abscisic acid and osmotic stress influenced the proline metabolism differently, the highest proline accumulation was observed in the case of abscisic acid treatments. The proline metabolism was partly regulated independently and not in an antagonistic manner from polyamine synthesis. Results suggest that the connection, which exists between polyamine metabolism and abscisic acid signalling leads to the controlled regulation and maintenance of polyamine and proline levels under osmotic stress conditions in wheat seedlings.

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Section: Methodsmentioning

confidence: 99%

Interaction of polyamines, abscisic acid and proline under osmotic stress in the leaves of wheat plants

Pál

Tajti

Szalai

et al. 2018

Sci Rep

140

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“…The total chlorophyll content was measured on the 3rd leaves using a SPAD-502 chlorophyll meter (Minolta Camera Co., Ltd, Japan) as described by Pál et al ( 2011 ). At least 30 replicates were measured from each treatment and one leaf was used for one replicate.…”

Section: Methodsmentioning

confidence: 99%

Janus-Faced Nature of Light in the Cold Acclimation Processes of Maize

et al. 2018

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Exposure of plants to low temperature in the light may induce photoinhibitory stress symptoms, including oxidative damage. However, it is also known that light is a critical factor for the development of frost hardiness in cold tolerant plants. In the present work the effects of light during the cold acclimation period were studied in chilling-sensitive maize plants. Before exposure to chilling temperature at 5°C, plants were cold acclimated at non-lethal temperature (15°C) under different light conditions. Although exposure to relatively high light intensities during cold acclimation caused various stress symptoms, it also enhanced the effectiveness of acclimation processes to a subsequent severe cold stress. It seems that the photoinhibition induced by low temperature is a necessary evil for cold acclimation processes in plants. Greater accumulations of soluble sugars were also detected during hardening at relatively high light intensity. Certain stress responses were light-dependent not only in the leaves, but also in the roots. The comparison of the gene expression profiles based on a microarray study demonstrated that the light intensity is at least as important a factor as the temperature during the cold acclimation period. Differentially expressed genes were mainly involved in most of assimilation and metabolic pathways, namely photosynthetic light capture via the modification of chlorophyll biosynthesis and the dark reactions, carboxylic acid metabolism, cellular amino acid, porphyrin or glutathione metabolic processes, ribosome biogenesis and translation. Results revealed complex regulation mechanisms and interactions between cold and light signalling processes.

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“…However, after prolonged cold acclimation, the content of phenolics was significantly lower in genotypes tolerant to freezing than in susceptible genotypes, while the activity of the phenylalanine ammonia-lyase enzyme was significantly higher. Plant growth substances such as abscisic acid, cytokinins or gibberellic acid also modify the response of plants to low temperature stress (Pál et al, 2011;Majláth et al, 2012). Furthermore, the treatment of wheat seeds with SA caused the accumulation of abscisic acid and indoleacetic acid (Shakirova et al, 2002), and this effect may also have a direct or indirect role in the altered tolerance to low temperature stress.…”

Section: Changes In Endogenous Sa Content During Cold Stressmentioning

confidence: 99%

Role of salicylic acid in acclimation to low temperature

Pál

Gondor

Janda

2013

Acta Agronomica Hungarica

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Low temperature is one of the most important limiting factors for plant growth throughout the world. Exposure to low temperature may cause various phenotypic and physiological symptoms, and may result in oxidative stress, leading to loss of membrane integrity and to the impairment of photosynthesis and general metabolic processes. Salicylic acid (SA), a phenolic compound produced by a wide range of plant species, may participate in many physiological and metabolic reactions in plants. It has been shown that exogenous SA may provide protection against low temperature injury in various plant species, while various stress factors may also modify the synthesis and metabolism of SA. In the present review, recent results on the effects of SA and related compounds in processes leading to acclimation to low temperatures will be discussed.

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Abscisic Acid May Alter the Salicylic Acid-Related Abiotic Stress Response in Maize

Cited by 35 publications

References 48 publications

Interaction of polyamines, abscisic acid and proline under osmotic stress in the leaves of wheat plants

Interaction of polyamines, abscisic acid and proline under osmotic stress in the leaves of wheat plants

Janus-Faced Nature of Light in the Cold Acclimation Processes of Maize

Role of salicylic acid in acclimation to low temperature

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