Exogenous putrescine reduces flooding-induced oxidative damage by increasing the antioxidant properties of Welsh onion

Yiu, Jinn-Chin; Juang, Lao-Dar; Fang, Denise Yi-Tan; Li, Chengwei; Wu, Shunchuan

doi:10.1016/j.scienta.2008.11.020

Cited by 87 publications

(41 citation statements)

References 60 publications

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“…This can be attributed to the constant exposure of photosynthetic cells to oxidative stress arising from the accumulation of ROS during various metabolic processes (Ahmed et al, 2002;Yiu et al, 2009a;Zheng et al, 2009). ROS production is determined by the rate of ROS formation and the ability of the scavenging system to metabolize the toxic active oxygen.…”

Section: Discussionmentioning

confidence: 99%

“…ROS readily attack leaf chloroplasts, proteins, and DNA strands (Yin et al, 2009;Yiu et al, 2009b). In order to cope with ROS, plants possess a suite of antioxidant enzymes, including superoxide dismutase (SOD) and peroxidase (POD), to scavenge ROS and alleviate oxidative damages (Yiu et al, 2009a;Yang et al, 2010b). The defense mechanisms of plants against abiotc stress require osmotic adjustment, which, to a certain degree, can be achieved through a synthesis of intracellular solutes (Yang and Miao, 2010).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Different eco-physiological responses between male and female Populus deltoides clones to waterlogging stress

Yang¹,

Wang²,

Wang³

et al. 2011

Forest Ecology and Management

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Different eco-physiological responses between male and female Populus deltoides clones to waterlogging stress

Yang¹,

Wang²,

Wang³

et al. 2011

Forest Ecology and Management

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“…PAs has also been reported to play important role in plant drought tolerance (Nayyar et al 2005;Yang et al 2007;Yamaguchi et al 2007). Yiu et al (2009) reported that exogenous application of Put reduced the flooding-induced oxidative damage in Allium fistulum by increasing the antioxidant capacity as evident from substantially reduced superoxide radical O À 2 ð Þ, H 2 O 2 , and malondialdehyde (MDA) contents and membrane permeability. The protective mechanism of Put includes, induced activity of a,a-diphenyl-b-picrylhydrazyl (DPPH)-radical scavenging, O À 2 scavenging, metal chelating properties, and antioxidative system.…”

Section: Droughtmentioning

confidence: 99%

Polyamines: potent modulators of plant responses to stress

Fariduddin

Varshney

Yusuf

et al. 2013

Journal of Plant Interactions

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Polyamines (PAs) are aliphatic polycations that are widespread in living organisms. In this review, we are focusing the correlation between endogenous PA titers and physiological perturbations and on the protective role of various analogues of PAs against abiotic stresses. PAs are involved in many physiological processes, such as cell growth and development and also respond to diverse abiotic stresses. Polyamines level shifts in different ways depending on several factors, such as plant species, tolerance or sensitivity to stress, and duration of stress. Exogenously supplied PAs protected plants from abiotic stress, whereas transgenic plants overexpressing PA biosynthetic genes exhibited stress tolerance. On the other hand, loss-of-function mutant of PA biosynthetic genes, or decrease of PA titers, resulted to decrease stress tolerance.

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“…They found that Spd also improved the transcription of PSII genes and translation of the corresponding proteins, which sustains a higher activity in PSII during water stress. Yiu et al (2009) showed that 2 mM putrescine (Put) pre-treatment confers flooding tolerance to the photosynthetic efficiency of welsh onion plants, probably through inducing the activities of various antioxidative systems. It has been shown that lipid peroxidation levels were significantly decreased by PAs treated with Physcia semipinnata during the exposure to UV-A (Unal et al, 2008).…”

Section: Oxidative Stressmentioning

confidence: 99%