The interactive effect of water deficit and UV-B radiation on salicylic acid accumulation in barley roots and leaves

Bandurska, Hanna; Cieślak, Małgorzata

doi:10.1016/j.envexpbot.2012.03.001

Cited by 85 publications

(60 citation statements)

References 49 publications

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“…Kabiri et al (2014) reported that SA increased total phenol, anthocyanin, and flavonoid content under drought stress and drought damages were reduced. In fact SA could induce activity of PAL and TAL activity and consequently phenolic compounds were increased (Bandurska and Cie´slak, 2013). Plants subjected to drought stress demonstrated higher total antioxidant capacity when exposed to higher PEG concentration.…”

Section: Resultsmentioning

confidence: 94%

The impact of salicylic acid on some physiological responses of Artemisia aucheri Boiss. under in vitro drought stress

Abbaspour

Ehsanpour

2016

AAS

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Salicylic acid (SA) is an important plant regulator which is involved in growth, development, and response to stress. This study was aimed to evaluate some physiological and biochemical responses of Artemisia aucheri Boiss. under drought stress after exogenous SA treatment. Experiment was performed in vitro. Polyethylene glycol (PEG/6000) with 0, 2 and 4 % (w/v) was used in MS medium to simulate drought stress and different concentrations of SA (0, 0.01 and 0.1mM) were added. After four weeks, SA alleviated the negative effects of PEG on dry and fresh mass as well as chlorophyll and carotenoid contents. Under drought stress, application of SA decreased storage polysaccharides and increased soluble carbohydrates respectively. Although PEG had no significant effect on flavonoid content, it increased significantly anthocyanin and total phenol content, total antioxidant capacity, PAL (phenylalanine ammonia-lyase) and TAL (tyrosine ammonia-lyase) activity and SA treatment improved these parameters significantly. According to the current data, it was concluded that SA increased drought tolerance of Artemisia aucheri by increasing biosynthesis of phenolic compounds, improvement of TAL and PAL activity as well as also by increased content of soluble carbohydrates.Key words: Artemisia aucheri Boiss., salicylic acid, drought stress; polyethylene glycol, growth, phenylalanine ammonia-lyase, tyrosine ammonia-lyase IZVLEČEK VPLIV SALICILNE KISLINE NA NEKATERE FIZIOLOŠKE ODZIVE VRSTE PELINA (Artemisia aucheri Boiss.) NA SUŠNI STRES V IN VITRO RAZMERAHSalicilna kislina je pomemben rastlinski hormon, ki je vključen v uravnavanje rasti, razvoja in odziva na stres. Cilj raziskave je bil ovrednotiti nekatere fiziološke in biokemične odzive vrste pelina Artemisia aucheri Boiss. v sušnem stresu po zunanjem dodajanju salicilne kisline. Poskus je potekal in vitro, v MS gojišču (Murashige and Skoog., 1962) z dodatkom polietilen glikola (PEG/6000, 0, 2 in 4 % (w/v)) za simulacijo sušnega stresa in dvema različnima koncentracijama salicilne kisline (SA) (0, 0.01 in 0.1 mM). Po štirih tednih je salicilna kislina zmanjšala negativne učinke polietilen glikola na suho in svežo maso kot tudi na vsebnosti klorofila in karotenoidov. V sušnem stresu je uporaba salicilne kisline zmanjšala vsebnost založnih polisaharidov in povečala vsebnost topnih ogljikovih hidratov. Čeprav polietilen glikol ni imel značilnega učinka na vsebnostn flavonoidov je značilno povečal vsebnost antocianinov, celokupnih fenolov, celokupno antioksidacijsko sposobnost, aktivnost PAL (fenilalanin amonium-liaza) in TAL (tirozin amonium-liaza), obravnavanje s salicilno kislino je te parametre značilno izboljšalo. Glede na te rezultate je bilo zaključeno, da salicilna kislina povečuje strpnost na sušo pri vrsti Artemisia aucheri s povečanjem biosinteze fenolnih snovi, z izboljšanjem aktivnosti TAL in PAL kot tudi s povečanjem vsebnosti topnih ogljikovih hidratov.

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Section: Resultsmentioning

confidence: 94%

The impact of salicylic acid on some physiological responses of Artemisia aucheri Boiss. under in vitro drought stress

Abbaspour

Ehsanpour

2016

AAS

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“…In the present study, although the PAL activity increased in certain wheat lines, these changes can hardly explain the dramatic SA accumulations observed. As Cd had little effect on the CS and ICS gene expression levels, it seems that, despite the lack of highly induced PAL activity, the increased SA levels in the leaves may have been due to the formation of its precursors in the roots and their transport to the leaves [23], resulting in only a slight Cd-induced increase in the level of root SA in Mv8 and Mv Hombár and a decrease in the root fBA content. The regulation of SA levels is a complex phenomenon.…”

Section: Discussionmentioning

confidence: 91%

Synthesis and role of salicylic acid in wheat varieties with different levels of cadmium tolerance

Kovács

Gondor

Szalai

et al. 2014

Journal of Hazardous Materials

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Wheat genotypes with different endogenous SA contents were investigated, in order to reveal how cadmium influences salicylic acid (SA) synthesis, and to find possible relationships between SA and certain protective compounds (members of the antioxidants and the heavy metal detoxification system) and between the SA content and the level of cadmium tolerance.Cadmium exposure induced SA synthesis, especially in the leaves, and it is suggested that the phenyl-propanoid synthesis pathway is responsible for the accumulation of SA observed after cadmium stress. Cadmium influenced the synthesis and activation of protective compounds to varying extents in wheat genotypes with different levels of tolerance; the roots and leaves also responded differently to cadmium stress. Although a direct relationship was not found between the initial SA levels and the degree of cadmium tolerance, the results suggest that the increase in the root SA level during cadmium stress in the Mv varieties could be related with the enhancement of the internal glutathione cycle, thus inducing the antioxidant and metal detoxification systems, which promote Cd stress tolerance in wheat seedlings. The positive correlation between certain SA-related compounds and protective compounds suggests that SA-related signalling may also play a role in the acclimation to heavy metal stress.

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“…It has been suggested that SA is directly involved in signaling antioxidant responses (Larkindale and Knight 2002). In addition, application of SA was found to alleviate stress induced by water deficit and UV-B radiation (Bandurska and Ciéslak 2013).…”

Section: Introductionmentioning

confidence: 99%

Salicylic acid and nitric oxide increase photosynthesis and antioxidant defense in wheat under UV-B stress

Yan¹,

Liu²,

Sheng³

et al. 2016

Biologia plant.

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The effects of exogenous salicylic acid (SA), sodium nitropusside (SNP, a nitric oxide donor), or their combination on dwarf polish wheat (Triticum polonicum L.) seedlings under UV-B stress were studied. UV-B stress significantly decreased plant height, shoot dry mass, pigment content, net photosynthetic rate, intercellular CO 2 concentration, stomatal conductance, transpiration rate, and variable to maximum chlorophyll fluorescence ratio (F v /F m ) in all plants, but less in the presence of SA, SNP, and their combination. On the other hand, there were considerable increases in malondialdehyde, proline, O 2•-and H 2 O 2 content under UV-B stress. When SA, SNP, and their combination were applied, the content of MDA, proline, H 2 O 2 , and O 2 •-was less increased. Moreover, there were considerable increases in activities of superoxide dismutase, peroxidase, ascorbate peroxidase, and glutathione reductase under UV-B stress and more in the presence of SA, SNP, and their combination. Therefore, it is considered that the combination of SA, SNP, and especially their combination can alleviate UV-B stress in dwarf polish wheat.

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The interactive effect of water deficit and UV-B radiation on salicylic acid accumulation in barley roots and leaves

Cited by 85 publications

References 49 publications

The impact of salicylic acid on some physiological responses of Artemisia aucheri Boiss. under in vitro drought stress

The impact of salicylic acid on some physiological responses of Artemisia aucheri Boiss. under in vitro drought stress

Synthesis and role of salicylic acid in wheat varieties with different levels of cadmium tolerance

Salicylic acid and nitric oxide increase photosynthesis and antioxidant defense in wheat under UV-B stress

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