scholarly journals Genome-wide study of pineapple (Ananas comosus L.) bHLH transcription factors indicates that cryptochrome-interacting bHLH2 (AcCIB2) participates in flowering time regulation and abiotic stress response

BMC Genomics ◽  
2020 ◽  
Vol 21 (1) ◽  
Author(s):  
Mohammad Aslam ◽  
Bello Hassan Jakada ◽  
Beenish Fakher ◽  
Joseph G. Greaves ◽  
Xiaoping Niu ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Stress Response ◽  
Flowering Time ◽  
Current Knowledge ◽  
Ectopic Expression ◽  
Ananas Comosus ◽  
Biological Processes ◽  
Abiotic Stress Response ◽  
Bhlh Genes

Abstract Background Transcription factors (TFs) are essential regulators of growth and development in eukaryotes. Basic-helix-loop-helix (bHLHs) is one of the most significant TFs families involved in several critical regulatory functions. Cryptochrome-interacting bHLH (CIB) and cryptochromes form an extensive regulatory network to mediate a plethora of pathways. Although bHLHs regulate critical biological processes in plants, the information about pineapple bHLHs remains unexplored. Results Here, we identified a total of 121 bHLH proteins in the pineapple genome. The identified genes were renamed based on the ascending order of their gene ID and classified into 18 subgroups by phylogenetic analysis. We found that bHLH genes are expressed in different organs and stages of pineapple development. Furthermore, by the ectopic expression of AcCIB2 in Arabidopsis and complementation of Atcib2 mutant, we verified the involvement of AcCIB2 in photomorphogenesis and abiotic stress response. Conclusions Our findings revealed that AcCIB2 plays an essential role in flowering time regulation and abiotic stress response. The present study provides additional insights into the current knowledge of bHLH genes and suggests their potential role in various biological processes during pineapple development.

scholarly journals The protein turnover of Arabidopsis BPM1 is involved in regulation of flowering time and abiotic stress response

2019 ◽  
Vol 102 (4-5) ◽  
pp. 359-372
Author(s):  
Andreja Škiljaica ◽  
Esther Lechner ◽  
Mateja Jagić ◽  
Kristina Majsec ◽  
Nenad Malenica ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Flowering Time ◽  
Protein Turnover ◽  
Abiotic Stress Response

scholarly journals Identification of the Golden-2-like transcription factors gene family in Gossypium hirsutum

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12484
Author(s):  
Zilin Zhao ◽  
Jiaran Shuang ◽  
Zhaoguo Li ◽  
Huimin Xiao ◽  
Yuling Liu ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
Transcription Factors ◽  
Abiotic Stress ◽  
Stress Response ◽  
Gossypium Hirsutum ◽  
Gene Family ◽  
Expression Patterns ◽  
Regulatory Elements ◽  
Abiotic Stress Response ◽  
Qrt Pcr

Background Golden2-Like (GLK) transcription factors are a type of transcriptional regulator in plants. They play a pivotal role in the plant physiological activity process and abiotic stress response. Methods In this study, the potential function of GLK family genes in Gossypium hirsutum was studied based on genomic identification, phylogenetic analysis, chromosome mapping and cis-regulatory elements prediction. Gene expression of nine key genes were analyzed by qRT-PCR experiments. Results Herein, we identified a total of 146 GhGLK genes in Gossypium hirsutum, which were unevenly distributed on each of the chromosomes. There were significant differences in the number and location of genes between the At sub-genome and the Dt sub-genome. According to the phylogenetic analysis, they were divided into ten subgroups, each of which had very similar number and structure of exons and introns. Some cis-regulatory elements were identified through promoter analysis, including five types of elements related to abiotic stress response, five types of elements related to phytohormone and five types of elements involved in growth and development. Based on public transcriptome data analysis, we identified nine key GhGLKs involved in salt, cold, and drought stress. The qRT-PCR results showed that these genes had different expression patterns under these stress conditions, suggesting that GhGLK genes played an important role in abiotic stress response. This study laid a theoretical foundation for the screening and functional verification of genes related to stress resistance of GLK gene family in cotton.

scholarly journals Mediator Complex: A Pivotal Regulator of ABA Signaling Pathway and Abiotic Stress Response in Plants

2020 ◽  
Vol 21 (20) ◽  
pp. 7755
Author(s):  
Leelyn Chong ◽  
Pengcheng Guo ◽  
Yingfang Zhu
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Rna Polymerase Ii ◽  
Signaling Pathway ◽  
Stress Responses ◽  
Abiotic Stresses ◽  
Current Knowledge ◽  
Mediator Complex ◽  
Aba Signaling ◽  
Abiotic Stress Response

As an evolutionarily conserved multi-protein complex, the Mediator complex modulates the association between transcription factors and RNA polymerase II to precisely regulate gene transcription. Although numerous studies have shown the diverse functions of Mediator complex in plant development, flowering, hormone signaling, and biotic stress response, its roles in the Abscisic acid (ABA) signaling pathway and abiotic stress response remain largely unclear. It has been recognized that the phytohormone, ABA, plays a predominant role in regulating plant adaption to various abiotic stresses as ABA can trigger extensive changes in the transcriptome to help the plants respond to environmental stimuli. Over the past decade, the Mediator complex has been revealed to play key roles in not only regulating the ABA signaling transduction but also in the abiotic stress responses. In this review, we will summarize current knowledge of the Mediator complex in regulating the plants’ response to ABA as well as to the abiotic stresses of cold, drought and high salinity. We will particularly emphasize the involvement of multi-functional subunits of MED25, MED18, MED16, and CDK8 in response to ABA and environmental perturbation. Additionally, we will discuss potential research directions available for further deciphering the role of Mediator complex in regulating ABA and other abiotic stress responses.

scholarly journals Plant Non-Coding RNAs: Origin, Biogenesis, Mode of Action and Their Roles in Abiotic Stress

2020 ◽  
Vol 21 (21) ◽  
pp. 8401
Author(s):  
Joram Kiriga Waititu ◽  
Chunyi Zhang ◽  
Jun Liu ◽  
Huan Wang
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Stress Responses ◽  
Current Knowledge ◽  
Fine Tuning ◽  
Abiotic Stress Response ◽  
Underlying Basis ◽  
Substantial Progress ◽  
Non Coding Rnas ◽  
Sequencing And Expression

As sessile species, plants have to deal with the rapidly changing environment. In response to these environmental conditions, plants employ a plethora of response mechanisms that provide broad phenotypic plasticity to allow the fine-tuning of the external cues related reactions. Molecular biology has been transformed by the major breakthroughs in high-throughput transcriptome sequencing and expression analysis using next-generation sequencing (NGS) technologies. These innovations have provided substantial progress in the identification of genomic regions as well as underlying basis influencing transcriptional and post-transcriptional regulation of abiotic stress response. Non-coding RNAs (ncRNAs), particularly microRNAs (miRNAs), short interfering RNAs (siRNAs), and long non-coding RNAs (lncRNAs), have emerged as essential regulators of plants abiotic stress response. However, shared traits in the biogenesis of ncRNAs and the coordinated cross-talk among ncRNAs mechanisms contribute to the complexity of these molecules and might play an essential part in regulating stress responses. Herein, we highlight the current knowledge of plant microRNAs, siRNAs, and lncRNAs, focusing on their origin, biogenesis, modes of action, and fundamental roles in plant response to abiotic stresses.

Orchestration of MicroRNAs and Transcription Factors in the Regulation of Plant Abiotic Stress Response

2020 ◽  
pp. 251-277
Author(s):  
Sombir Rao ◽  
Sonia Balyan ◽  
Sarita Jha ◽  
Chandni Bansal ◽  
Jaishri Rubina Das ◽  
...  
Keyword(s):  
Transcription Factors ◽  
Abiotic Stress ◽  
Stress Response ◽  
Abiotic Stress Response ◽  
Plant Abiotic Stress

scholarly journals The Raf-like kinase ILK1 and the high affinity K+ transporter HAK5 are required for Innate Immunity and Abiotic Stress Response

2016 ◽  
pp. pp.00035.2016 ◽  
Author(s):  
Elizabeth Kalinda Brauer ◽  
Nagib Ahsan ◽  
Renee Dale ◽  
Naohiro Kato ◽  
Alison E Coluccio ◽  
...  
Keyword(s):  
Innate Immunity ◽  
Abiotic Stress ◽  
Stress Response ◽  
Abiotic Stress Response ◽  
High Affinity

scholarly journals A unique Ni2+ -dependent and methylglyoxal-inducible rice glyoxalase I possesses a single active site and functions in abiotic stress response

2014 ◽  
Vol 78 (6) ◽  
pp. 951-963 ◽  
Author(s):  
Ananda Mustafiz ◽  
Ajit Ghosh ◽  
Amit K. Tripathi ◽  
Charanpreet Kaur ◽  
Akshay K. Ganguly ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Active Site ◽  
Glyoxalase I ◽  
Abiotic Stress Response

scholarly journals The DUB family in Populus: identification, characterization, evolution and expression patterns

BMC Genomics ◽  
2021 ◽  
Vol 22 (1) ◽  
Author(s):  
Wenqing Zheng ◽  
Liang Du
Keyword(s):  
Abiotic Stress ◽  
Stress Response ◽  
Gene Structure ◽  
Expression Profiles ◽  
Populus Trichocarpa ◽  
Expression Patterns ◽  
Foliar Spray ◽  
Regulatory Elements ◽  
Limited Information ◽  
Abiotic Stress Response

Abstract Background The deubiquitinase (DUB) family constitutes a group of proteases that regulate the stability or reverse the ubiquitination of many proteins in the cell. These enzymes participate in cell-cycle regulation, cell division and differentiation, diverse physiological activities such as DNA damage repair, growth and development, and response to stress. However, limited information is available on this family of genes in woody plants. Results In the present study, 88 DUB family genes were identified in the woody model plant Populus trichocarpa, comprising 44 PtrUBP, 3 PtrUCH, 23 PtrOTU, 4 PtrMJD, and 14 PtrJAMM genes with similar domains. According to phylogenetic analysis, the PtrUBP genes were classified into 16 groups, the PtrUCH genes into two, the PtrOTU genes into eight, the PtrMJD genes into two, and the PtrJAMM genes into seven. Members of same subfamily had similar gene structure and motif distribution characteristics. Synteny analysis of the DUB family genes from P. thrchocarpa and four other plant species provided insight into the evolutionary traits of DUB genes. Expression profiles derived from previously published transcriptome data revealed distinct expression patterns of DUB genes in various tissues. On the basis of the results of analysis of promoter cis-regulatory elements, we selected 16 representative PtrUBP genes to treatment with abscisic acid, methyl jasmonate, or salicylic acid applied as a foliar spray. The majority of PtrUBP genes were upregulated in response to the phytohormone treatments, which implied that the genes play potential roles in abiotic stress response in Populus. Conclusions The results of this study broaden our understanding of the DUB family in plants. Analysis of the gene structure, conserved elements, and expression patterns of the DUB family provides a solid foundation for exploration of their specific functions in Populus and to elucidate the potential role of PtrUBP gene in abiotic stress response.

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