Thermotolerance and antioxidant systems in Agrostis stolonifera: Involvement of salicylic acid, abscisic acid, calcium, hydrogen peroxide, and ethylene

Larkindale, Jane; Huang, Bingru

doi:10.1078/0176-1617-01239

Cited by 379 publications

(225 citation statements)

References 26 publications

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“…This was observed in the case of antioxidative enzymes, accumulation of antioxidants as well as lesser membrane damage. The ability of such chemicals to afford transient protection against temperature stress has been reported previously (Jiang and Huang 2004;Larkindale and Huang 2004;Chakraborty and Tongden 2005).…”

Section: Discussionmentioning

confidence: 58%

High temperature-induced oxidative stress inLens culinaris, role of antioxidants and amelioration of stress by chemical pre-treatments

Chakraborty

Pradhan

2011

Journal of Plant Interactions

105

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Six varieties of lentil (Lens culinaris Medik.) Á Asha, Subrata, IPL 406, IPL 81, Lv and Sehore Á were exposed to temperatures ranging from 30Á508C which resulted in retarded germination and seedling growth at higher temperatures. Tolerance index and membrane stability tests revealed Sehore and Lv to be susceptible to elevated temperatures while IPL 406, IPL 81, Asha and Subrata were tolerant. Catalase, ascorbate peroxidase and superoxide dismutase showed an initial increase before declining at 508C, while peroxidase and glutathione reductase activities declined at all temperatures. Lipid peroxidation significantly increased in all varieties. In the tolerant varieties, there was an initial decrease in accumulation of H 2 O 2 followed by an increase from 408C onwards; however, in the susceptible varieties, accumulation was enhanced at all high temperatures. Ascorbate and glutathione also showed initial increase followed by a decline. Total antioxidant activity was at a maximum at 35Á408C in the tolerant varieties and at 308C in the susceptible ones. Oxidative stress induced by high temperature was ameliorated by treatment with salicylic acid, abscisic acid or CaCl 2 , of which salicylic acid was the most effective.

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Section: Discussionmentioning

confidence: 58%

High temperature-induced oxidative stress inLens culinaris, role of antioxidants and amelioration of stress by chemical pre-treatments

Chakraborty

Pradhan

2011

Journal of Plant Interactions

105

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“…In addition to enzymatic ROS detoxification, hydrophilic and lipophilic antioxidant compounds contribute to the antioxidant response and may serve as radical scavengers (Fryer, 1992;Loreto et al, 2001;Larkindale and Huang, 2004;Pose et al, 2009). Increased levels of such compounds assist for a rapid detoxification of ROS and aid the protection of subcellular structures.…”

Section: Accumulation and Detoxification Of Reactive Oxygen Speciesmentioning

confidence: 99%

Extreme climatic events: impacts of drought and high temperature on physiological processes in agronomically important plants

Feller

Vaseva

2014

Front. Environ. Sci.

108

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Climate models predict more frequent and more severe extreme events (e.g., heat waves, extended drought periods, flooding) in many regions for the next decades. The impact of adverse environmental conditions on crop plants is ecologically and economically relevant. This review is focused on drought and heat effects on physiological status and productivity of agronomically important plants. Stomatal opening represents an important regulatory mechanism during drought and heat stress since it influences simultaneously water loss via transpiration and CO 2 diffusion into the leaf apoplast which further is utilized in photosynthesis. Along with the reversible short-term control of stomatal opening, stomata and leaf epidermis may produce waxy deposits and irreversibly down-regulate the stomatal conductance and non-stomatal transpiration. As a consequence photosynthesis will be negatively affected. Rubisco activase-a key enzyme in keeping the Calvin cycle functional-is heat-sensitive and may become a limiting factor at elevated temperature. The accumulated reactive oxygen species (ROS) during stress represent an additional challenge under unfavorable conditions. Drought and heat cause accumulation of free amino acids which are partially converted into compatible solutes such as proline. This is accompanied by lower rates of both nitrate reduction and de novo amino acid biosynthesis. Protective proteins (e.g., dehydrins, chaperones, antioxidant enzymes or the key enzyme for proline biosynthesis) play an important role in leaves and may be present at higher levels under water deprivation or high temperatures. On the whole plant level, effects on long-distance translocation of solutes via xylem and phloem and on leaf senescence (e.g., anticipated, accelerated or delayed senescence) are important. The factors mentioned above are relevant for the overall performance of crops under drought and heat and must be considered for genotype selection and breeding programs.

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“…For non-nodule plants, Arabidopsis, when the plant roots have been colonized by several specific strains of Pseudomonas spp., they would develop a protective defense response that is called rhizobacteria-mediated induced systemic resistance (Cartieaux et al, 2003). Recent study has indicated that abscisic acid (ABA) can not only inhibit Nod factor signal transduction and promote or suppress resistance against various pathogens (de Torres-Zabala et al, 2007;Ding et al, 2008;Mohr and Cahill, 2007), but also can break a new signaling pathway to heat stress (Larkindale and Huang, 2004;Larkindale et al, 2005). A transient peak in ABA levels was reported in response to HS in pea plants (Liu et al, 2006) and during recovery from HS treatments in creeping bentgrass (Larkindale and Huang, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…Recent study has indicated that abscisic acid (ABA) can not only inhibit Nod factor signal transduction and promote or suppress resistance against various pathogens (de Torres-Zabala et al, 2007;Ding et al, 2008;Mohr and Cahill, 2007), but also can break a new signaling pathway to heat stress (Larkindale and Huang, 2004;Larkindale et al, 2005). A transient peak in ABA levels was reported in response to HS in pea plants (Liu et al, 2006) and during recovery from HS treatments in creeping bentgrass (Larkindale and Huang, 2004). It has been reported that ABA induces thermotolerance in cell-suspension cultures of Bromus inermis Leyss.…”

Section: Introductionmentioning

confidence: 99%

Identification of an Arabidopsis Nodulin-Related Protein in Heat Stress

2010

Molecules and Cells

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We identified a Nodulin-related protein 1 (NRP1) encoded by At2g03440, which was previously reported to be RPS2 interacting protein in yeast-two-hybrid assay. Northern blotting showed that AtNRP1 expression was suppressed by heat stress (42°C) and induced by low temperature (4°C) treatment. Strong GUS staining was observed in the sites of meristematic tissues of pAtNRP1:: GUS transgenic plants, such as shoot apex and root tips, young leaf veins, stamens and stigmas of flowers, and abscission layers of young siliques. To study AtNRP1 biological functions, we have characterized both loss-of-function T-DNA insertion and transgenic overexpression plants for AtNRP1 in Arabidopsis. The T-DNA insertion mutants displayed no obvious difference as compared to wild-type Arabidopsis under heat stress, but the significant enhanced susceptibility to heat stress was revealed in two independent AtNRP1-overexpressing transgenic lines. Further study found that the decreased thermtolerance in AtNRP1-overexpressing lines accompanied significantly decreased accumulation of ABA after heat treatment, which was probably due to AtNRP1 playing a role in negative-feedback regulation of the ABA synthesis pathway. These results support the viewpoint that the application of ABA inhibits nodulation and nodulin-related gene expression and threaten adverse ambient temperature can impact the nodulin-related gene expression.

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Thermotolerance and antioxidant systems in Agrostis stolonifera: Involvement of salicylic acid, abscisic acid, calcium, hydrogen peroxide, and ethylene

Cited by 379 publications

References 26 publications

High temperature-induced oxidative stress inLens culinaris, role of antioxidants and amelioration of stress by chemical pre-treatments

High temperature-induced oxidative stress inLens culinaris, role of antioxidants and amelioration of stress by chemical pre-treatments

Extreme climatic events: impacts of drought and high temperature on physiological processes in agronomically important plants

Identification of an Arabidopsis Nodulin-Related Protein in Heat Stress

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