Identification and differential expression of cold-stress-responsive microRNAs in cold-tolerant and -susceptible <i>Hemerocallis fulva</i> varieties

Huang, Changbing; Cheng, Peilei; Zhang, Huanchao; Jiang, Chun; Jin, Limin

doi:10.1080/01140671.2021.2013260

Cited by 3 publications

(3 citation statements)

References 33 publications

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“…In contrast, the downregulation of a miRNA can increase its target genes expression. MiRNAs may mediate the gene regulation network under cold stress in two ways: regulating stressrelated signal transduction pathways or modulating the expression of cold-responsive TFs (Huang et al, 2022). Target genes and miRNAs involved in cold stress responses as a complex gene network may influence cold tolerance.…”

Section: Molecular Response To Cold Stress In Sorghummentioning

confidence: 99%

“…Plants are sessile organisms that are continuously confronted with a variety of abiotic stresses (Kidokoro et al, 2021;Rawat et al, 2021;Li et al, 2022, Kidokoro et al, 2022Huang et al, 2022). Cold is a limiting factor that has been considered among the main abiotic stresses that interfere with plant growth and development (Achard et al, 2008;Mehrotra et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

“…Several studies have examined the cold response in different plants and tissues (Zhou et al, 2021;Adhikari et al, 2022;Huang et al, 2022;Khanthavong et al, 2022;(Kidokoro et al, 2022;Zhang et al, 2022). In this sense, sorghum has been identified as a susceptible crop at low temperatures (Burow et al, 2011;Chopra et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Responses of sorghum to cold stress: A review focused on molecular breeding

2023

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Climate change has led to the search for strategies to acclimatize plants to various abiotic stressors to ensure the production and quality of crops of commercial interest. Sorghum is the fifth most important cereal crop, providing several uses including human food, animal feed, bioenergy, or industrial applications. The crop has an excellent adaptation potential to different types of abiotic stresses, such as drought, high salinity, and high temperatures. However, it is susceptible to low temperatures compared with other monocotyledonous species. Here, we have reviewed and discussed some of the research results and advances that focused on the physiological, metabolic, and molecular mechanisms that determine sorghum cold tolerance to improve our understanding of the nature of such trait. Questions and opportunities for a comprehensive approach to clarify sorghum cold tolerance or susceptibility are also discussed.

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Section: Molecular Response To Cold Stress In Sorghummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Responses of sorghum to cold stress: A review focused on molecular breeding

2023

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Integration of transcriptional responses in cold contrasting sorghum genotypes under low temperatures

Vera Hernández,

Flores Benavides,

Martínez Núñez

et al. 2024

Annals of Applied Biology

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Sorghum is a crop that is susceptible to low temperatures. However, due to the extreme global temperatures, new genotypes have been bred to adapt better to cold climates. Therefore, to better understand the metabolic and molecular differences that may contribute to the improved cold tolerance of these genotypes, it is essential to investigate whether specific molecules play a key role in determining the degree of sorghum tolerance. Furthermore, identifying genes associated with cold tolerance may assist in the development of more robust and productive sorghum cultivars. Here, we analysed the changes in selected elements of the antioxidant metabolism, genes, and miRNAs in two sorghum varieties with different degrees of tolerance to cold stress at different times of exposure to cold stress. The high expression of SbCBF6 in response to cold treatment in early time in the tolerant variety suggests its involvement in the cold response, thereby facilitating a better adaptation of the plant to cold conditions. MiR398 and miR394 showed contrasting behaviour in both varieties in low temperatures, resulting in interesting miRNAs in the degree of sorghum tolerance. MiR319, a marker for the selection of cold‐tolerant cultivars, presents a decrease, suggesting that the better capacity to repress the expression of several members of TCP family of transcription factor genes might be involved in better tolerance to cold stress. This study shows the changes of molecules of interest in response to cold stress in sorghum, marking the difference between cold‐susceptible and cold‐tolerant sorghum plants, which can contribute to selecting tolerant genotypes, allowing new strategies to enhance crop productivity and food security, in regions where low temperatures significantly constrain crop growth and yield.

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Plant responses to temperature stress modulated by microRNAs

Islam,

Adnan,

Alomran

et al. 2023

Physiologia Plantarum

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Due to the increasing impact of worldwide environmental changes, temperature stress has become a major factor resulting in crop yield losses. The discovery of temperature‐stress‐responsive protein‐coding genes has made significant progress in understanding plants' complex stress response systems involving microRNAs (miRNAs). The miRNAs are triggered by heat or cold, thus confirming their significant functional role in cold or heat tolerance. Such dependable recommendations significantly broaden our understanding of the regulatory role of miRNAs in plant stress responses. This article presents novel perspectives on the substantial roles of plant miRNAs in responding to and acclimatizing to heat and cold stress. It comprehensively elaborates on miRNAs responsive to temperature stress, their regulatory mechanisms, and their targeted functions in plants. Additionally, the article investigates how miRNAs contribute to safeguarding plant reproductive tissues, mitigating damage caused by reactive oxygen species, modulating heat shock proteins, transcription factors, and phytohormones in the context of temperature stress. The conclusion outlines potential avenues for future research, highlighting the utilization of miRNAs and their regulatory functions to develop economically vital crops with enhanced tolerance to temperature stress, thereby ensuring future food security.

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Identification and differential expression of cold-stress-responsive microRNAs in cold-tolerant and -susceptible Hemerocallis fulva varieties

Cited by 3 publications

References 33 publications

Responses of sorghum to cold stress: A review focused on molecular breeding

Responses of sorghum to cold stress: A review focused on molecular breeding

Integration of transcriptional responses in cold contrasting sorghum genotypes under low temperatures

Plant responses to temperature stress modulated by microRNAs

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