Lipid peroxidation in plant cells, its physiological role and changes under heavy metal stress

Skórzyńska-Polit, Ewa

doi:10.5586/asbp.2007.006

Cited by 39 publications

(33 citation statements)

References 51 publications

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“…However, differences have been noted in the changes in chlorophyll levels in response to UV between different genotypes and we observed that Ke83 and Pinot Blanc did not show an increase in chlorophyll levels to the extent shown by Hoe29 and Ke53. Citrus sinensis and Arabidopsis thaliana did not show chlorophyll degradation after a short UV exposure, indicative of some stress‐resistance and adaptability (Harpaz‐Saad et al , Sakuraba et al 2014). The Augster Weiss and Müller–Thurgau genotypes did not synthesize high levels of stilbenes over the UV‐C stress time course (Fig.…”

Section: Discussionmentioning

confidence: 99%

“…3), especially in the case of Augster Weiss. This may indicate a less effective response mechanism: the UV‐C radiation might cause the destruction of photosynthetic membranes and ultrastructure of the chloroplasts (Brandle et al 1977), or it might impair the activity of photosystem II (PSII) and related proteins (Fagerberg , van Rensen et al , Gupta et al 2008, Dobrikova et al 2013).…”

Section: Discussionmentioning

confidence: 99%

“…Furthermore, ROS can also act as signaling molecules, causing molecular, biochemical and physiological responses (Fath et al 2002, Vranová et al 2002. Malondialdehyde (MDA) is one of the main products of membrane lipid peroxidation and has a strong cytotoxicity (Skórzyńska 2007). Changes in MDA levels can therefore provide an indication of the degree of membrane lipid peroxidation by ROS and the strength of the stress response.…”

Section: Introductionmentioning

confidence: 99%

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Changes in the chlorophyll content of grape leaves could provide a physiological index for responses and adaptation to UV‐C radiation

Luo

Jiang

et al. 2019

Nordic Journal of Botany

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Stilbenes are a group of phytoalexins that play an important role in grapevine (Vitis) basal immunity and can be induced by biotic and abiotic stresses. The levels of chlorophylls, the main pigments in plant cells, can also indicate the tolerance of plants to various stresses. Here, the response of different grapevine genotypes to UV‐C radiation treatment was tested and the abundance of chlorophyll in the Hoe29 and Ke53 genotypes was observed to increase significantly within 6 h of UV‐C treatment. Conversely, chlorophyll levels decreased markedly in the Augster Weiss and Müller–Thurgau genotypes. Furthermore, stilbene abundance increased substantially in the Hoe29, Ke53, Ke83 and Pinot Blanc genotypes, but increased only slightly in Augster Weiss and Müller–Thurgau. The expression of resveratrol synthase, which encodes a key enzyme in the stilbene synthesis pathway, increased in Hoe29, Ke53, Ke83 and Pinot Blanc following UV‐C treatment, in a manner consistent with stilbene accumulation. In addition, we observed that reactive oxygen species (ROS) provide a key trigger in physiological responses and changes in secondary metabolite contents. In summary, the results from this study support a link between ROS, chlorophyll levels and genetic diversity for stilbene abundance in different grape genotypes, providing insights into mechanisms for plant physiological and biochemical responses and adaptations to stress.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Changes in the chlorophyll content of grape leaves could provide a physiological index for responses and adaptation to UV‐C radiation

Luo

Jiang

et al. 2019

Nordic Journal of Botany

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“…Bu zararlı etkilerden en belirgini hücre zarı lipitlerinin peroksidasyonu yoluyla hücreye verilen hasardır. Bu noktada, oluşan malondialdehit (MDA) miktarının ölçülmesi bitkideki hücresel hasarın düzeyi ile ilgili bir belirteç olabilir (Skórzyńska-Polit 2007).…”

Section: Introductionunclassified

Amsonia orientalis’de 6-Benzilaminopürin Destekli In vitro Sürgün Çoğaltımı Üzerine Kuraklık Stresinin Morfolojik ve Fizyolojik Etkileri

Acemi¹,

Toygar²,

Karakuş³

et al. 2019

Türk Tarım Ve Doğa Bilimleri Dergisi

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Özet Bu çalışmada Amsonia orientalis Decne.'nin 6-benzilaminopürin (BAP) destekli in vitro sürgün çoğaltımı aşamasında uygulanmış kuraklık stresi etkisinin morfolojik ve bazı fizyolojik etkileri incelenmiştir. Kültürlerin inkübasyon sürelerinin sonunda sürgünlerin ortalama uzunluk ve sayıları, H2O2 (hidrojen peroksit) ve MDA (malondialdehit) seviyeleri ile SOD (süperoksit dismutaz), POD (peroksidaz) ve CAT (katalaz) enzimlerinin aktiviteleri analiz edilmiştir. Polietilen glikol (PEG-6000) kullanılarak elde edilen-0,15,-0,49,-1,03 ve-1,76 MPa osmotik potansiyeller sürgünler üzerinde BAP ilaveli ve ilavesiz olmak üzere iki kontrol grubu kullanılarak test edilmiştir. Ortalama sürgün sayısı düşen osmotik potansiyelle birlikte BAP ilaveli kontrole kıyasla azalsa da BAP ilavesiz kontrol değeriyle istatistiki olarak aynı düzeyde kalmıştır. Ortalama sürgün uzunluğu ise sadece en şiddetli kuraklık uygulaması sonucu BAP ilavesiz kontrol değerinin altına düşmüştür. SOD aktivitesi artan kuraklığa bağlı olarak kontrol değerlerine göre önemli ölçüde azalırken şiddetli kuraklıkta kontrol değerine kadar yükselmiştir. POD ve CAT aktivitelerinde de düşüş gözlenmiş ancak CAT aktivitesindeki azalmanın daha belirgin olduğu görülmüştür. Artan kuraklık etkisinde H2O2 ve MDA seviyelerinin benzer olarak arttığı bulunmuştur. Buna karşın bu artış düşük seviyelerde gerçekleşmiştir. Kuraklık stresi uygulanmamışken antioksidan enzim aktivitelerinin daha yüksek bulunması fakat düşen osmotik potansiyellerde beklenenin aksine azalması durumu A. orientalis'te BAP uygulamasının hücresel osmotik düzenleyicilerin görev aldığı enzimatik olmayan savunma mekanizmasını uyardığını ve daha etkin kullanılmasına imkân verdiği sonucunu düşündürmüştür. Bu nedenle bitkide kuraklık stresinde BAP uygulamasının moleküler ve fizyolojik işleyişinin detaylı olarak ortaya konması gerekmektedir. BAP uygulaması doğada A. orientalis'in kuraklık stresine maruz kalması durumunda kuraklığın sürgünler üzerindeki olası olumsuz etkilerini hafifletmek için tercih edilebilir.

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“…Studies on how plant genotypes respond to all kind of stresses indicate a similar mechanism of adaptation to unfavorable environmental conditions. These reactions are mostly connected with neutralizing free radicals, particularly reactive oxygen species (ROS) which frequently appear as the effect of different stress factors [1][2][3]. Many experiments indicate significance changes in the enzymatic and non-enzymatic antioxidant system during environmental stresses in plant tissues.…”

Section: Introductionmentioning

confidence: 99%

The effect of seedling chilling on glutathione content, catalase and peroxidase activity in Brassica oleracea L. var. italica

Wojciechowska¹,

Hanus-Fajerska²,

Kołton³

et al. 2013

Acta Soc Bot Pol

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IntroductionProper growth and development of plants depends on an efficient defense system, mainly against reactive oxygen species. Studies on how plant genotypes respond to all kind of stresses indicate a similar mechanism of adaptation to unfavorable environmental conditions. These reactions are mostly connected with neutralizing free radicals, particularly reactive oxygen species (ROS) which frequently appear as the effect of different stress factors [1][2][3]. Many experiments indicate significance changes in the enzymatic and non-enzymatic antioxidant system during environmental stresses in plant tissues. The most active in this respect are usually the classified enzymes: catalase (CAT), peroxidase (POD) and superoxide dismutase (SOD) as well as chemical compounds such as glutathione, ascorbic acid or different polyphenols [4,5]. It is well established that the mechanisms of tolerance to chilling, freezing, drought or high salinity include the action of common genes. For this reason chilling transplants before planting might result in a better adaptation of plants cultivated from such transplants to various stresses via a well-defined increase in the antioxidant activity system in particular plant organs [6,7]. In recently carried out investigations that were focused on the reaction of wild species or cultivated plant cultivars to abiotic stresses, only early vegetative stages of development in the studied genotypes were applied [7,8]. Moreover, these experiments were mainly carried out in strictly controlled conditions. As a rule, neither the natural environment of plant growth nor the stage of full generative development was considered.The Brassica oleracea L. var. italica that was used in the presented experiment is a vegetable of great economical value, and in Europe it is grown on a large scale that could be compared to that of the cauliflower. Broccoli flower buds contain an elevated level of health-promoting substances, which are active during the neutralization of free radicals [9,10]. A crucial example of such is glutathione, a non-enzymatic hydrophilic antioxidant that commonly occurs in plants belonging to the Brassicaceae family. This thiol compound is an important substrate of the enzymatic defense system in the cytoplasm and in the chloroplasts of plant cells. Because of its anticarcinogenic functions it is very important in the human diet. In some cultivars of broccoli the glutathione content may exceed 200 nmol g −1 of fresh weight [11]. The cultivar italica of B. oleracea can optionally be planted from transplanted seedlings in spring, summer or autumn, but this practice sometimes requires storage of the transplant material. The storage may be necessary because of unfavorable weather conditions. For that reason offering an efficient way AbstractThe study was designed to determine the possible relationship between Brassica oleracea var. italica seedlings stored at 2°C in the dark for seven and fourteen days, respectively, and the level of certain antioxidant parameters in particular organs. ...

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Lipid peroxidation in plant cells, its physiological role and changes under heavy metal stress

Cited by 39 publications

References 51 publications

Changes in the chlorophyll content of grape leaves could provide a physiological index for responses and adaptation to UV‐C radiation

Changes in the chlorophyll content of grape leaves could provide a physiological index for responses and adaptation to UV‐C radiation

Amsonia orientalis’de 6-Benzilaminopürin Destekli In vitro Sürgün Çoğaltımı Üzerine Kuraklık Stresinin Morfolojik ve Fizyolojik Etkileri

The effect of seedling chilling on glutathione content, catalase and peroxidase activity in Brassica oleracea L. var. italica

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