The physiological and biochemical effects of salicylic acid on sunflowers (Helianthus annuus) exposed to flurochloridone

Kaya, Armağan; Yiğit, Emel

doi:10.1016/j.ecoenv.2014.04.041

Cited by 42 publications

(18 citation statements)

References 43 publications

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“…The last product of lipid peroxidation, MDA, is an important indicator of oxidative stress [32]. There are reports showing that MDA contents increased at sunflower when treated with salt stress [3] and herbicide stress [23]. Similar to these findings, our study revealed that MDA content was increased at all groups exposed to stress, compared to control and this increase is more significant in groups simultaneously exposed to both stress factors.…”

Section: Discussionsupporting

confidence: 88%

“…GST together with xenobiotic substances catalyzes the conjugation of GSH and plays an important role in detoxification [31]. Studies already exist showing that GST and GR activities change at sunflower exposed to different stresses [13,14,23,44]. In the present study, GST and GR enzyme activities were shown to be increased all stress groups, compared to control.…”

Section: Discussionsupporting

confidence: 62%

“…Carotenoids are non-enzymatic antioxidants protecting plants from oxidative damage [26]. Sairam et al [36] have shown that carotenoid content decreased in wheat depending on salt stress, while Kaya and Yiğit [23] have found that carotenoid content was reduced in sunflower depending on herbicide treatment. The present study showed that carotenoid content decreased in stress groups compared to control, whereas exogenous AsA treatment increased carotenoid content (Table 1).…”

Section: Discussionmentioning

confidence: 99%

“…APX activity might change when plants are exposed to different stresses. For example, Kaya and Yiğit [23] found that APX activity reduced at sunflower exposed to flurochloridon. Kostopoulou et al [25] reported that APX activity increased in response to salt stress in Citrus aurantium plant.…”

Section: Discussionmentioning

confidence: 99%

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Exogenous ascorbic acid improves defence responses of sunflower (Helianthus annuus) exposed to multiple stresses

Kaya

2017

Acta Biologica Hungarica

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Ascorbic acid is an important antioxidant that plays role both on growth and development and also stress response of the plant. The purpose of this study was to determine the effect of ascorbate on physiological and biochemical changes of sunflower that was exposed to multiple stresses. Chlorophyll and carotenoid contents decreased and glutathione, ascorbate and malondialdehyde contents as well as antioxidant enzyme activities increased for sunflower plant that was exposed to 50 mM NaCl and pendimethalin at different concentrations. These changes were found to be more significant in groups simultaneously exposed to both stress factors. While malondialdehyde content decreased, chlorophyll, carotenoid, ascorbate, glutathione contents and antioxidant enzyme activities increased in plants treated exogenously with ascorbate, compared to the untreated samples. According to the findings of our study; compared to individual stress, the effect of stress is more pronounced in sunflower exposed to multiple stresses, and treatment with exogenous ascorbate reduces the negative effects of stress.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Exogenous ascorbic acid improves defence responses of sunflower (Helianthus annuus) exposed to multiple stresses

Kaya

2017

Acta Biologica Hungarica

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“…cumana in the area where this parasitic weed was reported, according to the field investigation from Institute of Plant Protection, Inner Mongolia Academy of Agricultural and Animal Husbandry Sciences. Salicylic acid treatments were conducted according to the method of Kaya & Yigit () with some modifications. Seeds of sunflowers were incubated for 6 h in water and SA solution at two concentrations (0.5 and 1 mM).…”

Section: Methodsmentioning

confidence: 99%

Seed treatment with salicylic acid invokes defence mechanism ofHelianthus annuusagainstOrobanche cumana

Yang

Ali

et al. 2016

Annals of Applied Biology

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The root holoparasitic angiosperm sunflower broomrape (Orobanche cumana) specifically affects sunflower (Helianthus annuus) growth and causes severe damage all over the world. This investigation was designed to examine the protective effects of salicylic acid (SA) treatment to the seeds of an O. cumana-susceptible cultivar of sunflower (TK0409). Sunflower seeds were pretreated with different concentrations (0, 0.5 and 1 mM) of SA and inoculated with O. cumana for 4 weeks. O. cumana infection resulted in reduction in plant biomass, endogenous SA level, and the expression of SA-related genes including pal, chs and NPR1. By contrast, O. cumana infection enhanced the production of reactive oxygen species, activities of antioxidant enzymes as well as contents of phenolics and lignin. Seed treatment with 1 mM SA increased sunflower biomass in terms of plant height, fresh weight and dry weight by 10%, 13% and 26%, respectively, via reducing the number and biomass of established O. cumana. The increase of hydrogen peroxide contents by 14% in the 1 mM SA treated sunflower plants appeared to be because of the inhibition of ascorbate peroxidase and catalase by exogenous SA. The enhanced expression of pathogenesis-related genes (PR3 and PR12, encoding chitinase and defensin, respectively) after 4 weeks of inoculation indicated that systemic acquired resistance was induced in the SA treated sunflower in which the level of endogenous SA was also elevated in a dose-dependent manner. The increased expression of a hypersensitive-responsive (HR) gene hsr indicated that the resistance of sunflowers might be associated with a hypersensitive reaction which was activated by exogenous SA treatment.(H 2 O 2 ) in O. cumana-infected sunflowers promote an oxidative burst during the interaction of sunflower and O. cumana . Rapid production of ROS is seen as an indicator of successful recognition of infection by plants, leading to the activation of the plants' defence mechanism (Torres et al., 2006;Torres, 2010). Accumulation of H 2 O 2 in peas infected by Orobanche crenata was observed by using both biochemical and cytochemical techniques (Pérez-de-Luque et al., 2006;Mabrouk et al., 2007). However, Mor et al. (2008) found that ROS detected at the interaction site on Arabidopsis thaliana infected by Orobanche aegyptiaca probably originated from the parasite, which was important for 408 Ann Appl Biol 169 (2016) 408-422

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Mechanism Associated with Brassinosteroids-Mediated Detoxification of Pesticides in Plants

Bakshi

Bali

Sharma

et al. 2022

Brassinosteroids Signalling

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The physiological and biochemical effects of salicylic acid on sunflowers (Helianthus annuus) exposed to flurochloridone

Cited by 42 publications

References 43 publications

Exogenous ascorbic acid improves defence responses of sunflower (Helianthus annuus) exposed to multiple stresses

Exogenous ascorbic acid improves defence responses of sunflower (Helianthus annuus) exposed to multiple stresses

Seed treatment with salicylic acid invokes defence mechanism ofHelianthus annuusagainstOrobanche cumana

Mechanism Associated with Brassinosteroids-Mediated Detoxification of Pesticides in Plants

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