Acclimation, Hydrogen Peroxide, and Abscisic Acid Protect Mitochondria against Irreversible Chilling Injury in Maize Seedlings

Prasad, T. K.; Stewart, Cecil R.

doi:10.1104/pp.105.2.619

Cited by 238 publications

(158 citation statements)

References 28 publications

(30 reference statements)

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“…A protective role against cell oxidative injury has been demonstrated for mitochondrial superoxide dismutase by complementation in yeast (Balzan et al, 1995). In plants, seedling protection against chilling injury can be achieved by acclimation or H 2 O 2 application, and is correlated with the induction of mitochondrial antioxydant enzymes (Prasad et al, 1994(Prasad et al, , 1995. Besides, the first evidence for OS protection of mitochondria by HSP was recently provided in human premonocytic cells .…”

Section: Does Hsp Expression Lead To Cellular Adaptation and Mitochonmentioning

confidence: 99%

Accumulation of small heat shock proteins, including mitochondrial HSP22, induced by oxidative stress and adaptive response in tomato cells

et al. 1998

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SummaryChanges in gene expression, by application of H 2 O 2 , O 2°-generating agents (methyl viologen, digitonin) and gamma irradiation to tomato suspension cultures, were investigated and compared to the well-described heat shock response. Two-dimensional gel protein mapping analyses gave the first indication that at least small heat shock proteins (smHSP) accumulated in response to application of H 2 O 2 and gamma irradiation, but not to O 2°-generating agents. While some proteins seemed to be induced specifically by each treatment, only part of the heat shock response was observed. On the basis of Northern hybridization experiments performed with four heterologous cDNA, corresponding to classes I-IV of pea smHSP, it could be concluded that significant amounts of class I and II smHSP mRNA are induced by H 2 O 2 and by irradiation. Taken together, these results demonstrate that in plants some HSP genes are inducible by oxidative stresses, as in micro-organisms and other eukaryotic cells. HSP22, the main stress protein that accumulates following H 2 O 2 action or gamma irradiation, was also purified. Sequence homology of amino terminal and internal sequences, and immunoreactivity with Chenopodium rubrum mitochondrial smHSP antibody, indicated that the protein belongs to the recently discovered class of plant mitochondrial smHSP. Heat shock or a mild H 2 O 2 pretreatment was also shown to lead to plant cell protection against oxidative injury. Therefore, the synthesis of these stress proteins can be considered as an adaptive mechanism in which mitochondrial protection could be essential.

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Section: Does Hsp Expression Lead To Cellular Adaptation and Mitochonmentioning

confidence: 99%

Accumulation of small heat shock proteins, including mitochondrial HSP22, induced by oxidative stress and adaptive response in tomato cells

et al. 1998

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“…Activation of NADPH oxidases is known to elicit a massive generation of superoxide anions in various biological membranes (Ogawa et al 1997). The mechanism involves cellular defense against peroxidation of membrane lipids, caused by chilling stress is through the generation of ROS such as superoxide, hydrogen peroxide, and hydroxyl radicals (Prasad et al 1994). Increases in ROS generation and resultant peroxidation of membrane lipids in chilled leaves are common to chilling-sensitive species and cultivars.…”

Section: Chillingmentioning

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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“…Therefore, NO production could lead to increased mtROS formation. Many stresses cause oxidative damage in plant tissues, and increases in mtROS resulting from mtETC perturbations have been implicated as at least partly responsible for the damage and plant responses observed in several of these cases, including chilling (Prasad et al, 1994a(Prasad et al, , 1994bPurvis et al, 1995), salt stress (Hernández et al, 1993;Mittova et al, 2003), and phosphate deficiency (Juszczuk et al, 2001;Parsons et al, 1999;Malusà et al, 2002).…”

Section: Generation Of Mtrosmentioning

confidence: 99%

Mitochondrial Reactive Oxygen Species. Contribution to Oxidative Stress and Interorganellar Signaling

et al. 2006

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Acclimation, Hydrogen Peroxide, and Abscisic Acid Protect Mitochondria against Irreversible Chilling Injury in Maize Seedlings

Cited by 238 publications

References 28 publications

Accumulation of small heat shock proteins, including mitochondrial HSP22, induced by oxidative stress and adaptive response in tomato cells

Accumulation of small heat shock proteins, including mitochondrial HSP22, induced by oxidative stress and adaptive response in tomato cells

Polyamines: potent modulators of plant responses to stress

Mitochondrial Reactive Oxygen Species. Contribution to Oxidative Stress and Interorganellar Signaling

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