Cold stress in plants: Strategies to improve cold tolerance in forage species

Adhikari, Laxman; Baral, Rudra; Paudel, Dev; Min, Doohong; Makaju, Shiva O.; Poudel, Hari P.; Acharya, Janam P.; Missaoui, Ali

doi:10.1016/j.stress.2022.100081

Cited by 40 publications

(24 citation statements)

References 177 publications

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“…The non-enzyme defense system comprises ascorbate (AsA), carotenoids, tocopherols, glutathione (GSH), proline, and soluble sugars, among others ( Theocharis et al, 2012 ; Fedotova and Dmitrieva, 2016 ; Surówka et al, 2020 ). Meanwhile, the enzyme defense system includes superoxide dismutase (SOD), catalase (CAT), ascorbate peroxidase (APX), glutathione reductase (GR), and GSTs ( Gill et al, 2013 ; Adhikari et al, 2022 ). As antioxidative enzymes, GSTs play a significant role in detoxifying ROS produced within cells ( Gill et al, 2013 ).…”

Section: Introductionmentioning

confidence: 99%

Genome-wide identification and expression analysis of glutathione S-transferase gene family to reveal their role in cold stress response in cucumber

Duan

Wang

et al. 2022

Front. Genet.

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The plant glutathione S-transferases (GSTs) are versatile proteins encoded by several genes and play vital roles in responding to various physiological processes. Members of plant GSTs have been identified in several species, but few studies on cucumber (Cucumis sativus L.) have been reported. In this study, we identified 46 GST genes, which were divided into 11 classes. Chromosomal location and genome mapping revealed that cucumber GSTs (CsGSTs) were unevenly distributed in seven chromosomes, and the syntenic regions differed in each chromosome. The conserved motifs and gene structure of CsGSTs were analyzed using MEME and GSDS 2.0 online tools, respectively. Transcriptome and RT-qPCR analysis revealed that most CsGST members responded to cold stress. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses for differentially expressed CsGSTs under cold stress revealed that these genes responded to cold stress probably through “glutathione metabolism.” Finally, we screened seven candidates that may be involved in cold stress using Venn analysis, and their promoters were analyzed using PlantCARE and New PLACE tools to predict the factors regulating these genes. Antioxidant enzyme activities were increased under cold stress conditions, which conferred tolerance against cold stress. Our study illustrates the characteristics and functions of CsGST genes, especially in responding to cold stress in cucumber.

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Section: Introductionmentioning

confidence: 99%

Genome-wide identification and expression analysis of glutathione S-transferase gene family to reveal their role in cold stress response in cucumber

Duan

Wang

et al. 2022

Front. Genet.

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“…Cold stress usually has adverse effects on membrane fluidity, ROS homeostasis, and energy metabolism, and photosynthesis ( Shi et al, 2018 ; Ding and Yang, 2022 ). Upon cold stress, plants accumulate excessive ROS, including superoxide (O 2 – ), hydrogen peroxide (H 2 O 2 ), and hydroxyl radicals (OH – ), which are toxic molecules causing oxidative stress ( Adhikari et al, 2022 ). We investigated the ROS scavenging mechanisms of P. nutans .…”

Section: Discussionmentioning

confidence: 99%

“…How plants sense cold signals, however, is still a major fundamental subject that has to be addressed. Plants may perceive and transmit cold signals to cells via a variety of mechanisms, including calcium (Ca 2+ ), reactive oxygen species (ROS) and plant hormone signaling ( Ding et al, 2020 ; Adhikari et al, 2022 ). Cold-responsive genes will be activated and regulated at transcriptional and posttranscriptional levels in order for plants to withstand cold stress ( Ding and Yang, 2022 ).…”

Section: Introductionmentioning

confidence: 99%

Metabolic profiling and gene expression analyses provide insights into cold adaptation of an Antarctic moss Pohlia nutans

Liu

Fang

et al. 2022

Front. Plant Sci.

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Antarctica is the coldest, driest, and most windy continent on earth. The major terrestrial vegetation consists of cryptogams (mosses and lichens) and two vascular plant species. However, the molecular mechanism of cold tolerance and relevant regulatory networks were largely unknown in these Antarctic plants. Here, we investigated the global alterations in metabolites and regulatory pathways of an Antarctic moss (Pohlia nutans) under cold stress using an integrated multi-omics approach. We found that proline content and several antioxidant enzyme activities were significantly increased in P. nutans under cold stress, but the contents of chlorophyll and total flavonoids were markedly decreased. A total of 559 metabolites were detected using ultra high-performance liquid chromatography/electrospray ionization tandem mass spectrometry (HPLC-ESI-MS/MS). We observed 39 and 71 differentially changed metabolites (DCMs) after 24 h and 60 h cold stress, indicating that several major pathways were differentially activated for producing fatty acids, alkaloids, flavonoids, terpenoids, and phenolic acids. In addition, the quantitative transcriptome sequencing was conducted to uncover the global transcriptional profiles of P. nutans under cold stress. The representative differentially expressed genes (DEGs) were identified and summarized to the function including Ca2+ signaling, ABA signaling, jasmonate signaling, fatty acids biosynthesis, flavonoid biosynthesis, and other biological processes. The integrated dataset analyses of metabolome and transcriptome revealed that jasmonate signaling, auxin signaling, very-long-chain fatty acids and flavonoid biosynthesis pathways might contribute to P. nutans acclimating to cold stress. Overall, these observations provide insight into Antarctic moss adaptations to polar habitats and the impact of global climate change on Antarctic plants.

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“…( Banerjee et al., 2017 ). Several plants increase freezing tolerance (cold acclimation) when they are exposed to low non-freezing temperatures ( Adhikari et al., 2022 ). However, several important crops like rice, maize, soybean, cotton and tomato are sensitive to cold stress, and they are incapable of acclimatising to cold stress, when ice forms in their tissue.…”

Section: Regulation Of Cold Stress In Plantsmentioning

confidence: 99%

“…). In Arabidopsis, CBF proteins bind to the cis-acting element DRE/CRT present in the promoter regions of the cold-responsive genes such as COR genes and activate their expression (Figure 1) (Adhikari et al, 2022). Cold stress rapidly induces CBF1, CBF2 and CBF3 genes along with COR gene expression.…”

mentioning

confidence: 99%

Epigenetic stress memory: A new approach to study cold and heat stress responses in plants

Ramakrishnan

Zhang

Mullasseri³

et al. 2022

Front. Plant Sci.

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Understanding plant stress memory under extreme temperatures such as cold and heat could contribute to plant development. Plants employ different types of stress memories, such as somatic, intergenerational and transgenerational, regulated by epigenetic changes such as DNA and histone modifications and microRNAs (miRNA), playing a key role in gene regulation from early development to maturity. In most cases, cold and heat stresses result in short-term epigenetic modifications that can return to baseline modification levels after stress cessation. Nevertheless, some of the modifications may be stable and passed on as stress memory, potentially allowing them to be inherited across generations, whereas some of the modifications are reactivated during sexual reproduction or embryogenesis. Several stress-related genes are involved in stress memory inheritance by turning on and off transcription profiles and epigenetic changes. Vernalization is the best example of somatic stress memory. Changes in the chromatin structure of the Flowering Locus C (FLC) gene, a MADS-box transcription factor (TF), maintain cold stress memory during mitosis. FLC expression suppresses flowering at high levels during winter; and during vernalization, B3 TFs, cold memory cis-acting element and polycomb repressive complex 1 and 2 (PRC1 and 2) silence FLC activation. In contrast, the repression of SQUAMOSA promoter-binding protein-like (SPL) TF and the activation of Heat Shock TF (HSFA2) are required for heat stress memory. However, it is still unclear how stress memory is inherited by offspring, and the integrated view of the regulatory mechanisms of stress memory and mitotic and meiotic heritable changes in plants is still scarce. Thus, in this review, we focus on the epigenetic regulation of stress memory and discuss the application of new technologies in developing epigenetic modifications to improve stress memory.

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Cold stress in plants: Strategies to improve cold tolerance in forage species

Cited by 40 publications

References 177 publications

Genome-wide identification and expression analysis of glutathione S-transferase gene family to reveal their role in cold stress response in cucumber

Genome-wide identification and expression analysis of glutathione S-transferase gene family to reveal their role in cold stress response in cucumber

Metabolic profiling and gene expression analyses provide insights into cold adaptation of an Antarctic moss Pohlia nutans

Epigenetic stress memory: A new approach to study cold and heat stress responses in plants

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