Glyoxalase System and Reactive Oxygen Species Detoxification System in Plant Abiotic Stress Response and Tolerance: An Intimate Relationship

Hossain, Mohammad Anwar; Silva, Jaime A. Teixeira da; Fujita, Masayuki

doi:10.5772/22421

Cited by 11 publications

(3 citation statements)

References 122 publications

(169 reference statements)

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“…A common response in the form of oxidative stress is often showed by plants exposed to extreme temperature conditions (Hasanuzzaman et al, 2013b). During temperature stresses, overproduction of ROS can be a major risk factor to plant cells and also enhance the expression of ROS detoxifying and scavenging enzymes (Hossain and Fujita, 2011). ROS scavenging enzymes or antioxidants form the network, having important roles in redox signaling in chloroplast and mitochondria.…”

Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Temperature stress and redox homeostasis in agricultural crops

Awasthi

Bhandari

Nayyar

2015

Front. Environ. Sci.

224

137

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Plants are exposed to a wide range of environmental conditions and one of the major forces that shape the structure and function of plants are temperature stresses, which include low and high temperature stresses and considered as major abiotic stresses for crop plants. Due to global climate change, temperature stress is becoming the major area of concern for the researchers worldwide. The reactions of plants to these stresses are complex and have devastating effects on plant metabolism, disrupting cellular homeostasis and uncoupling major physiological and biochemical processes. Temperature stresses disrupt photosynthesis and increase photorespiration thereby altering the normal homeostasis of plant cells. The constancy of temperature, among different metabolic equilibria present in plant cells, depends to a certain extent on a homeostatically regulated ratio of redox components, which are present virtually in all plant cells. Several pathways, which are present in plant cells, enable correct equilibrium of the plant cellular redox state and balance fluctuations in plant cells caused by changes in environment due to stressful conditions. In temperature stresses, high temperature stress is considered to be one of the major abiotic stresses for restricting crop production worldwide. The responses of plants to heat stress vary with extent of temperature increase, its duration and the type of plant. On other hand, low temperature as major environmental factor often affects plant growth and crop productivity and leads to substantial crop loses. A direct result of stress-induced cellular changes is overproduction of reactive oxygen species (ROS) in plants which are produced in such a way that they are confined to a small area and also in specific pattern in biological responses. ROS (superoxide; O − 2 , hydroxyl radicals; OH − , alkoxyl radicals and non-radicals like hydrogen peroxide; H 2 O 2 and singlet oxygen; 1 O 2) are highly reactive and toxic and cause damage to proteins, lipids, carbohydrates which ultimately results in oxidative stress. ROS may also serve as signaling molecules in mediating important signal transduction pathways that coordinate an astonishing range of diverse plant processes under temperature stress. To counter temperature induced oxidative stress, plants upregulate a variety of enzymatic and non-enzymatic antioxidants which are also information-rich redox buffers and important components of redox signaling that interact with biomembrane-related compartments. They provide essential information on cellular redox state, and regulate gene expression associated with stress responses to optimize defense and survival, stress acclimation and tolerance. The work done by various researchers has explored a direct link between ROS scavenging and plant tolerance under temperature extremes in various crops which include legumes, cereals, oil crops and vegetables. There is ample need to develop temperature tolerance in crop plants by exploring suitable strategies to manage oxidative stress and maintain cel...

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Section: Conclusion and Future Perspectivesmentioning

confidence: 99%

Temperature stress and redox homeostasis in agricultural crops

Awasthi

Bhandari

Nayyar

2015

Front. Environ. Sci.

224

137

View full text Add to dashboard Cite

show abstract

“…Unbalanced ROS production, on the other hand, may harm cellular components and cause them to malfunction. As a result of the detrimental effect of ROS overproduction in living tissues, the capacity of plants to generate antioxidant enzymes is often connected with vulnerability to environmental stressors, such as waterlogging [164]. Moreover, waterlogging causes anaerobic conditions in the root zone of plants.…”

Section: Waterloggingmentioning

confidence: 99%

Overview of Identified Genomic Regions Associated with Various Agronomic and Physiological Traits in Barley under Abiotic Stresses

et al. 2022

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Climate change has caused breeders to focus on varieties that are able to grow under unfavorable conditions, such as drought, high and low temperatures, salinity, and other stressors. In recent decades, progress in biotechnology and its related tools has provided opportunities to dissect and decipher the genetic basis of tolerance to various stress conditions. One such approach is the identification of genomic regions that are linked with specific or multiple characteristics. Cereal crops have a key role in supplying the energy required for human and animal populations. However, crop products are dramatically affected by various environmental stresses. Barley (Hordeum vulgare L.) is one of the oldest domesticated crops that is cultivated globally. Research has shown that, compared with other cereals, barley is well adapted to various harsh environmental conditions. There is ample literature regarding these responses to abiotic stressors, as well as the genomic regions associated with the various morpho-physiological and biochemical traits of stress tolerance. This review focuses on (i) identifying the tolerance mechanisms that are important for stable growth and development, and (ii) the applicability of QTL mapping and association analysis in identifying genomic regions linked with stress-tolerance traits, in order to help breeders in marker-assisted selection (MAS) to quickly screen tolerant germplasms in their breeding cycles. Overall, the information presented here will inform and assist future barley breeding programs.

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“…Some adaptive mechanisms evolved by tolerant plants with the association of endophytes are the reason behind their gene encoded proteins and enzymes that involve in phytoremediation. This is organized by various factors including immobilization, plasma membrane exclusion, restriction of uptake and transport, synthesis of specific heavy metal transporters, chelation and sequestration of heavy metals by particular ligands, induction of mechanisms contrasting the effects of ROS and MG (such as upregulation of antioxidant and glyoxalase system), induction of stress proteins, the biosynthesis of polyamines and signaling molecules such as salicylic acid and nitric oxide [25][26][27][28].…”

Section: Phytoextraction Associated With Endophytesmentioning

confidence: 99%

Phytoremediatiation of Metal and Metalloid Pollutants from Farmland: An In-Situ Soil Conservation

Krishnasamy¹,

Lakshmanan²,

Ravichandran³

2022

Biodegradation Technology of Organic and Inorganic Pollutants

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Phytoremediation is an effective technology for in-situ remediation of high level polluted soils. Phytoremediation is a plant-mediated approach, which involves the use of plants to absorb and remove elemental pollutants or lower their concentration or bioavailability to soil. Plants have efficacy to absorb compounds in the soil even at low concentration through their root system. Plant root system has geotropism which helps them to extend into the soil matrix and hyper accumulate heavy metals to increase their bioavailability considerably and thereby the polluted soil is domesticated and the soil fertility is enhanced. The heavy-metal-resistant endophytes give the promising effect on plant growth, by decreasing metal phytotoxicity and affecting metal translocation and accumulation in plants. It is an eye opening for researches to implement the phytoremediation of organic contaminants through endophytes that produce various enzymes to metabolize organic contaminants and reduce both the phytotoxicity and evapotranspiration of volatile contaminants. Here, we focus on the most widely used phytoremediation strategies, phytostabilization, phytoextraction, phytovolatilization, and phytofiltration in the remediation of heavy metal-polluted soil.

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Glyoxalase System and Reactive Oxygen Species Detoxification System in Plant Abiotic Stress Response and Tolerance: An Intimate Relationship

Cited by 11 publications

References 122 publications

Temperature stress and redox homeostasis in agricultural crops

Temperature stress and redox homeostasis in agricultural crops

Overview of Identified Genomic Regions Associated with Various Agronomic and Physiological Traits in Barley under Abiotic Stresses

Phytoremediatiation of Metal and Metalloid Pollutants from Farmland: An In-Situ Soil Conservation

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