Omics Technologies for Abiotic Stress Tolerance in Plants: Current Status and Prospects

Mehta, Sahil; James, Donald; Reddy, M. K.

doi:10.1007/978-3-030-21687-0_1

Cited by 21 publications

(16 citation statements)

References 246 publications

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“…1 O 2 , a form of ROS, is just an excited state of ground-state O 2 , and no gain of e − occurs in its formation. 1 O 2 is highly reactive, so much so that, similar to OH − , it is thought not to diffuse far from its production site [42]. It is usually generated in the antenna system of the chloroplasts after the 3Chl* reacts with oxygen [43].…”

Section: Insights Into the Basic Mechanism Of Ros Generation In Plantsmentioning

confidence: 99%

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How to Cope with the Challenges of Environmental Stresses in the Era of Global Climate Change: An Update on ROS Stave off in Plants

Singh

Mehta

Yadav

et al. 2022

IJMS

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With the advent of human civilization and anthropogenic activities in the shade of urbanization and global climate change, plants are exposed to a complex set of abiotic stresses. These stresses affect plants’ growth, development, and yield and cause enormous crop losses worldwide. In this alarming scenario of global climate conditions, plants respond to such stresses through a highly balanced and finely tuned interaction between signaling molecules. The abiotic stresses initiate the quick release of reactive oxygen species (ROS) as toxic by-products of altered aerobic metabolism during different stress conditions at the cellular level. ROS includes both free oxygen radicals {superoxide (O2•−) and hydroxyl (OH−)} as well as non-radicals [hydrogen peroxide (H2O2) and singlet oxygen (1O2)]. ROS can be generated and scavenged in different cell organelles and cytoplasm depending on the type of stimulus. At high concentrations, ROS cause lipid peroxidation, DNA damage, protein oxidation, and necrosis, but at low to moderate concentrations, they play a crucial role as secondary messengers in intracellular signaling cascades. Because of their concentration-dependent dual role, a huge number of molecules tightly control the level of ROS in cells. The plants have evolved antioxidants and scavenging machinery equipped with different enzymes to maintain the equilibrium between the production and detoxification of ROS generated during stress. In this present article, we have focused on current insights on generation and scavenging of ROS during abiotic stresses. Moreover, the article will act as a knowledge base for new and pivotal studies on ROS generation and scavenging.

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Section: Insights Into the Basic Mechanism Of Ros Generation In Plantsmentioning

confidence: 99%

“…Since the past century, plants have been prone to multiple unfavorable environmental conditions on a time scale of minutes to years [1]. These threats have arisen because of rapid urbanization and anthropogenic activities (including industrialization) that primarily Figure 1.…”

Section: Introductionmentioning

confidence: 99%

How to Cope with the Challenges of Environmental Stresses in the Era of Global Climate Change: An Update on ROS Stave off in Plants

Singh

Mehta

Yadav

et al. 2022

IJMS

Self Cite

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“…Many TFs such as MYBs, AP2/EREBP, WRKYs, MADS-box, or ERFs have been reported to play key functions in biotic and abiotic stress responses [10,[70][71][72][73][74][75][76]. Developmental programs are regulated by complex networks both at the transcriptional and post-transcriptional level, including, not yet fully explored, epigenetic switches [73,[77][78][79]. CW remodeling is a critical mechanism that copes with abiotic stress.…”

Section: The Interaction Of Cell Wall Polymers In Developmental Procementioning

confidence: 99%

Plant Cell Walls Tackling Climate Change: Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming

Ezquer

Salameh

Colombo

et al. 2020

Plants

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Plant cell wall (CW) is a complex and intricate structure that performs several functions throughout the plant life cycle. The CW of plants is critical to the maintenance of cells' structural integrity by resisting internal hydrostatic pressures, providing flexibility to support cell division and expansion during tissue differentiation, and acting as an environmental barrier that protects the cells in response to abiotic stress. Plant CW, comprised primarily of polysaccharides, represents the largest sink for photosynthetically fixed carbon, both in plants and in the biosphere. The CW structure is highly varied, not only between plant species but also among different organs, tissues, and cell types in the same organism. During the developmental processes, the main CW components, i.e., cellulose, pectins, hemicelluloses, and different types of CW-glycoproteins, interact constantly with each other and with the environment to maintain cell homeostasis. Differentiation processes are altered by positional effect and are also tightly linked to environmental changes, affecting CW both at the molecular and biochemical levels. The negative effect of climate change on the environment is multifaceted, from high temperatures, altered concentrations of greenhouse gases such as increasing CO 2 in the atmosphere, soil salinity, and drought, to increasing frequency of extreme weather events taking place concomitantly, therefore, climate change affects crop productivity in multiple ways. Rising CO 2 concentration in the atmosphere is expected to increase photosynthetic rates, especially at high temperatures and under water-limited conditions. This review aims to synthesize current knowledge regarding the effects of climate change on CW biogenesis and modification. We discuss specific cases in crops of interest carrying cell wall modifications that enhance tolerance to climate change-related stresses; from cereals such as rice, wheat, barley, or maize to dicots of interest such as brassica oilseed, cotton, soybean, tomato, or potato. This information could be used for the rational design of genetic engineering traits that aim to increase the stress tolerance in key crops. Future growing conditions expose plants to variable and extreme climate change factors, which negatively impact global agriculture, and therefore further research in this area is critical.

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“…Profiling techniques are broadly accepted as being capable of delivering sound descriptions of their target class of molecule in a range of diverse field from molecular medicine to food safety and plant physiology studies (Karahalil, 2016;Argueso et al, 2019;Mehta et al, 2019;Carrera et al, 2020). A number of molecular profiling studies have already indicated unintended effects of genetic modification (Coll et al, 2011;Wang et al, 2015Wang et al, , 2019Zanatta et al, 2020).…”

Section: Suitability and Reproducibility Of 2-d Gel-based Dige Experimentsmentioning

confidence: 99%

Untargeted Proteomics-Based Approach to Investigate Unintended Changes in Genetically Modified Maize for Environmental Risk Assessment Purpose

et al. 2021

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Profiling technologies, such as proteomics, allow the simultaneous measurement and comparison of thousands of plant components without prior knowledge of their identity. The combination of these non-targeted methods facilitates a more comprehensive approach than targeted methods and thus provides additional opportunities to identify genotypic changes resulting from genetic modification, including new allergens or toxins. The purpose of this study was to investigate unintended changes in GM Bt maize grown in South Africa. In the present study, we used bi-dimensional gel electrophoresis based on fluorescence staining, coupled with mass spectrometry in order to compare the proteome of the field-grown transgenic hybrid (MON810) and its near-isogenic counterpart. Proteomic data showed that energy metabolism and redox homeostasis were unequally modulated in GM Bt and non-GM maize variety samples. In addition, a potential allergenic protein—pathogenesis related protein −1 has been identified in our sample set. Our data shows that the GM variety is not substantially equivalent to its non-transgenic near-isogenic variety and further studies should be conducted in order to address the biological relevance and the potential risks of such changes. These finding highlight the suitability of unbiased profiling approaches to complement current GMO risk assessment practices worldwide.

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Omics Technologies for Abiotic Stress Tolerance in Plants: Current Status and Prospects

Cited by 21 publications

References 246 publications

How to Cope with the Challenges of Environmental Stresses in the Era of Global Climate Change: An Update on ROS Stave off in Plants

How to Cope with the Challenges of Environmental Stresses in the Era of Global Climate Change: An Update on ROS Stave off in Plants

Plant Cell Walls Tackling Climate Change: Biotechnological Strategies to Improve Crop Adaptations and Photosynthesis in Response to Global Warming

Untargeted Proteomics-Based Approach to Investigate Unintended Changes in Genetically Modified Maize for Environmental Risk Assessment Purpose

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