Overexpression of thylakoidal ascorbate peroxidase shows enhanced resistance to chilling stress in tomato

Duan, Ming; Feng, Hai-Long; Wang, Liyan; Liu, Dong; Meng, Qingwei

doi:10.1016/j.jplph.2012.02.012

Cited by 109 publications

(64 citation statements)

References 63 publications

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“…Consequently, the compound plays a very important role in resistance to a number of environmental stresses. The increasing evidence suggests that elevating ascorbate content could enhance tolerance to various abiotic stresses, such as oxidative (induced by MV), salt, mannitol, ozone, osmosis and chilling stresses, under in vitro conditions (Lim et al 2012;Hemavathi et al 2009;Zhang et al 2011a;Eltayeb et al 2007;Duan et al 2012a;Li et al 2010;Sun et al 2010). In this study, the over-expression of FaGalUR led to elevated ascorbic acid content in tomato and improved tolerance to oxidative (75 lM MV), salt (200 mM), and cold (4°C) stresses.…”

Section: Discussionmentioning

confidence: 57%

Ectopic expression of FaGalUR leads to ascorbate accumulation with enhanced oxidative stress, cold, and salt tolerance in tomato

Cai

Zhang

et al. 2014

Plant Growth Regul

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Section: Discussionmentioning

confidence: 57%

Ectopic expression of FaGalUR leads to ascorbate accumulation with enhanced oxidative stress, cold, and salt tolerance in tomato

Cai

Zhang

et al. 2014

Plant Growth Regul

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“…Photosynthetic activity is sensitive to chilling stress because low temperature causes impaired photochemical activity due to membrane injury (Hu et al, 2010). Also, low temperature can lead to excessive excitation energy, inhibiting PSII activity (Duan et al, 2012;Pinheiro & Chaves, 2011). Plants have evolved various mechanisms to against light-induced damage (Cushman & Bohnert, 2000;Vij & Tyagi, 2007), such as regulation of PSII light-capture efficiency.…”

Section: Introductionmentioning

confidence: 99%

Responses of Unsaturated Fatty Acid in Membrane Lipid and Antioxidant Enzymes to Chilling Stress in Sweet Sorghum (Sorghum bicolor (L.) Moench) Seedling

Guo¹,

Liu²,

Yang³

et al. 2016

JAS

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Low temperature is a major factor limiting the productivity and geographical distribution of many plant species. In this study, we investigated the effect of chilling stress (10 o C) on seedling growth in two sweet sorghum (Sorghum bicolor (L.) Moench) inbred lines (M-81E and Roma). Results showed that the chilling resistance of M-81E was higher than that of Roma. The Fv/Fm in leaves of M-81E decreased less than that of Roma during chilling stress. After 24 h of chilling stress, the Fv/Fm of M-81E and Roma decreased by 24.3 and 45.8%, respectively. Fo was also affected significantly during chilling stress. Malondialdehyde (MDA), an indicator of lipid peroxidation caused by ROS, increased during chilling stress. The contents of MDA increased less in leaves of M-81E than that in Roma under chilling stress. The antioxidant enzymes (SOD and APX) activity of M-81E was higher than those of Roma during chilling stress. The unsaturated fatty acid content and the double bond index (DBI) of major membrane lipids of MGDG, DGDG, SQDG, PC, PE and PG of M-81E significantly increased after 24 h of chilling treatment (10 o C). The DBI of MGDG, DGDG, SQDG, PC and PG of Roma significantly decreased. These results showed that the chilling tolerance of M-81E was higher than that of Roma by increasing of unsaturated fatty acid in membrane lipid and powerful protective enzyme system at seedling stage.

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“…APX, in presence of AsA, is involved in H 2 O 2 scavenging and minimizes the subsequent oxidative conditions in the cell. The level of ascorbate-glutathione and the activities of antioxidant enzymes are generally increased during abiotic stress conditions and correlate with enhanced cellular protection (Asada 2006;Duan et al 2012). Tomato plants are highly susceptible to water deficit notably during the growth phase, but also at flowering and the fruit growth.…”

Section: Introductionmentioning

confidence: 99%

Effect of water stress on antioxidant systems and oxidative parameters in fruits of tomato (Solanum lycopersicon L, cv. Micro-tom)

Murshed

Lopez-Lauri²,

Sallanon

2013

Physiol Mol Biol Plants

100

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The effects of different levels of water stress on oxidative parameters (H 2 O 2 and MDA), the total pool sizes of ascorbate, the activities of antioxidant enzymes superoxide dismutase (SOD) and catalase (CAT), as well as the activities and relative transcript levels of the enzymes of ascorbate-glutathione cycle ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR) and glutathione reductase (GR) were studied in the fruit of tomato (Solanum lycopersicum L. cv. Micro-Tom). Plants were subjected to three levels of water stress (S50, S25 and S0) and fruits at different development stages were harvested after 3, 6 and 10 days of stress. Changes in H 2 O 2 and MDA contents indicated that water stress induced oxidative stress in fruits. The concentrations of ascorbate (AsA) and dehydroascorbate (DHA) generally modified with water stress treatments. Moreover, changes in SOD and CAT activities and DHAR, MDHAR, APX and GR activities and relative transcript levels were dependent on the fruit development stage and the intensity and the duration of water stress. These results suggest that the response of antioxidant systems of tomato fruits to oxidative stress induced by water stress treatments was different depending on the fruit development stage.

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Overexpression of thylakoidal ascorbate peroxidase shows enhanced resistance to chilling stress in tomato

Cited by 109 publications

References 63 publications

Ectopic expression of FaGalUR leads to ascorbate accumulation with enhanced oxidative stress, cold, and salt tolerance in tomato

Ectopic expression of FaGalUR leads to ascorbate accumulation with enhanced oxidative stress, cold, and salt tolerance in tomato

Responses of Unsaturated Fatty Acid in Membrane Lipid and Antioxidant Enzymes to Chilling Stress in Sweet Sorghum (Sorghum bicolor (L.) Moench) Seedling

Effect of water stress on antioxidant systems and oxidative parameters in fruits of tomato (Solanum lycopersicon L, cv. Micro-tom)

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